20:
1463:
1620:
that divides it randomly into four blocks. The generator thereafter is sequentially applied over and over again to only one of the available blocks picked preferentially with respect to their areas. It results in the partitioning of the square into ever smaller mutually exclusive rectangular blocks. The dual of the WPSL (DWPSL), which is obtained by replacing each block with a node at its center, and each common border between blocks with an edge joining the two corresponding vertices, emerges as a network whose degree distribution follows a power-law. The reason for it is that it grows following
1604:
1695:: the growth and the preferential attachment. By "growth" is meant a growth process where, over an extended period of time, new nodes join an already existing system, a network (like the World Wide Web which has grown by billions of web pages over 10 years). Finally, by "preferential attachment" is meant that new nodes prefer to connect to nodes that already have a high number of links with others. Thus, there is a higher probability that more and more nodes will link themselves to that one which has already many links, leading this node to a hub
1455:
61:
1660:). According to this process, a page with many in-links will attract more in-links than a regular page. This generates a power-law but the resulting graph differs from the actual Web graph in other properties such as the presence of small tightly connected communities. More general models and network characteristics have been proposed and studied. For example, Pachon et al. (2018) proposed a variant of the
2637:. It implies that the higher the links (degree) a node has, the higher its chance of gaining more links since they can be reached in a larger number of ways through mediators which essentially embodies the intuitive idea of rich get richer mechanism (or the preferential attachment rule of the Barabasi–Albert model). Therefore, the MDA network can be seen to follow the PA rule but in disguise.
917:, and thus that the citation network is scale-free. He did not however use the term "scale-free network", which was not coined until some decades later. In a later paper in 1976, Price also proposed a mechanism to explain the occurrence of power laws in citation networks, which he called "cumulative advantage" but which is today more commonly known under the name
1699:. Depending on the network, the hubs might either be assortative or disassortative. Assortativity would be found in social networks in which well-connected/famous people would tend to know better each other. Disassortativity would be found in technological (Internet, World Wide Web) and biological (protein interaction, metabolism) networks.
3542:. These networks are able to reproduce city-size distributions and electoral results by unraveling the size distribution of social groups with information theory on complex networks when a competitive cluster growth process is applied to the network. In models of scale-free ideal networks it is possible to demonstrate that
1500:, while targeted attacks destroys the connectedness very quickly. Other scale-free networks, which place the high-degree vertices at the periphery, do not exhibit these properties. Similarly, the clustering coefficient of scale-free networks can vary significantly depending on other topological details.
3720:
with the degrees of a few uniformly sampled nodes. However, since uniform sampling does not obtain enough samples from the important heavy-tail of the power law degree distribution, this method can yield a large bias and a variance. It has been recently proposed to sample random friends (i.e., random
1619:
has recently been proposed whose coordination number distribution follow a power-law. It implies that the lattice has a few blocks which have astonishingly large number neighbors with whom they share common borders. Its construction starts with an initiator, say a square of unit area, and a generator
1495:
At present, the more specific characteristics of scale-free networks vary with the generative mechanism used to create them. For instance, networks generated by preferential attachment typically place the high-degree vertices in the middle of the network, connecting them together to form a core, with
1768:
Note that some models (see
Dangalchev and Fitness model below) can work also statically, without changing the number of nodes. It should also be kept in mind that the fact that "preferential attachment" models give rise to scale-free networks does not prove that this is the mechanism underlying the
1676:
A somewhat different generative model for Web links has been suggested by
Pennock et al. (2002). They examined communities with interests in a specific topic such as the home pages of universities, public companies, newspapers or scientists, and discarded the major hubs of the Web. In this case, the
941:
coined the term "scale-free network" to describe the class of networks that exhibit a power-law degree distribution. However, studying seven examples of networks in social, economic, technological, biological, and physical systems, Amaral et al. were not able to find a scale-free network among these
1706:
of the networks (adding new nodes) is not a necessary condition for creating a scale-free network (see
Dangalchev). One possibility (Caldarelli et al. 2002) is to consider the structure as static and draw a link between vertices according to a particular property of the two vertices involved. Once
1536:
et al., for example, demonstrated that a transformation which converts random graphs to their edge-dual graphs (or line graphs) produces an ensemble of graphs with nearly the same degree distribution, but with degree correlations and a significantly higher clustering coefficient. Scale free graphs,
1483:
distribution, which decreases as the node degree increases. This distribution also follows a power law. This implies that the low-degree nodes belong to very dense sub-graphs and those sub-graphs are connected to each other through hubs. Consider a social network in which nodes are people and links
1470:
The most notable characteristic in a scale-free network is the relative commonness of vertices with a degree that greatly exceeds the average. The highest-degree nodes are often called "hubs", and are thought to serve specific purposes in their networks, although this depends greatly on the domain.
1611:
Scale free topology has been also found in high temperature superconductors. The qualities of a high-temperature superconductor — a compound in which electrons obey the laws of quantum physics, and flow in perfect synchrony, without friction — appear linked to the fractal arrangements of seemingly
3510:
is a variant of the preferential attachment model (proposed by Pachon et al.) which takes into account two different attachment rules: a preferential attachment mechanism (with probability 1−p) that stresses the rich get richer system, and a uniform choice (with probability p) for the most recent
2203:
A variant of the 2-L model, the k2 model, where first and second neighbour nodes contribute equally to a target node's attractiveness, demonstrates the emergence of transient scale-free networks. In the k2 model, the degree distribution appears approximately scale-free as long as the network is
1545:
Although many real-world networks are thought to be scale-free, the evidence often remains inconclusive, primarily due to the developing awareness of more rigorous data analysis techniques. As such, the scale-free nature of many networks is still being debated by the scientific community. A few
936:
who mapped the topology of a portion of the World Wide Web, finding that some nodes, which they called "hubs", had many more connections than others and that the network as a whole had a power-law distribution of the number of links connecting to a node. After finding that a few other networks,
2040:
Dangalchev (see ) builds a 2-L model by considering the importance of each of the neighbours of a target node in preferential attachment. The attractiveness of a node in the 2-L model depends not only on the number of nodes linked to it but also on the number of links in each of these nodes.
1445:
The power-law degree distribution enables us to make "scale-free" assertions about the prevalence of high-degree nodes. For instance, we can say that "nodes with triple the average connectivity occur half as frequently as nodes with average connectivity." The specific numerical value of what
1508:
The question of how to immunize efficiently scale free networks which represent realistic networks such as the
Internet and social networks has been studied extensively. One such strategy is to immunize the largest degree nodes, i.e., targeted (intentional) attacks since for this case
1488:). In addition, the members of a community also have a few acquaintance relationships to people outside that community. Some people, however, are connected to a large number of communities (e.g., celebrities, politicians). Those people may be considered the hubs responsible for the
872:
is infinite but the first moment is finite), although occasionally it may lie outside these bounds. The name "scale-free" could be explained by the fact that some moments of the degree distribution are not defined, so that the network does not have a characteristic scale or "size".
3260:
construction leads to a hierarchical network. Starting from a fully connected cluster of five nodes, we create four identical replicas connecting the peripheral nodes of each cluster to the central node of the original cluster. From this, we get a network of 25 nodes
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progressively lower-degree nodes making up the regions between the core and the periphery. The random removal of even a large fraction of vertices impacts the overall connectedness of the network very little, suggesting that such topologies could be useful for
3037:
Krapivsky, Redner, and
Leyvraz demonstrate that the scale-free nature of the network is destroyed for nonlinear preferential attachment. The only case in which the topology of the network is scale free is that in which the preferential attachment is
2204:
relatively small, but significant deviations from the scale-free regime emerge as the network grows larger. This results in the relative attractiveness of nodes with different degrees changing over time, a feature also observed in real networks.
2191:
2419:
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Poccia, Nicola; Ricci, Alessandro; Campi, Gaetano; Fratini, Michela; Puri, Alessandro; Di
Gioacchino, Daniele; Marcelli, Augusto; Reynolds, Michael; Burghammer, Manfred; Saini, Naurang L.; Aeppli, Gabriel; Bianconi, Antonio (2012).
1647:
generative model in which each new Web page creates links to existing Web pages with a probability distribution which is not uniform, but proportional to the current in-degree of Web pages. This model was originally invented by
876:
Many networks have been reported to be scale-free, although statistical analysis has refuted many of these claims and seriously questioned others. Additionally, some have argued that simply knowing that a degree-distribution is
984:
The history of scale-free networks also includes some disagreement. On an empirical level, the scale-free nature of several networks has been called into question. For instance, the three brothers
Faloutsos believed that the
3470:
3265: = 25). Repeating the same process, we can create four more replicas of the original cluster – the four peripheral nodes of each one connect to the central node of the nodes created in the first step. This gives
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Starting with scale free graphs with low degree correlation and clustering coefficient, one can generate new graphs with much higher degree correlations and clustering coefficients by applying edge-dual transformation.
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nodes. This modification is interesting to study the robustness of the scale-free behavior of the degree distribution. It is proved analytically that the asymptotically power-law degree distribution is preserved.
2500:
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is a measure of connectivity, generally quantified by a node's degree—that is, the number of links attached to it. Networks featuring a higher number of high-degree nodes are deemed to have greater connectivity.
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Fratini, Michela; Poccia, Nicola; Ricci, Alessandro; Campi, Gaetano; Burghammer, Manfred; Aeppli, Gabriel; Bianconi, Antonio (2010). "Scale-free structural organization of oxygen interstitials in La2CuO4+y".
1722:
In today's terms, if a complex network has a power-law distribution of any of its metrics, it's generally considered a scale-free network. Similarly, any model with this feature is called a scale-free model.
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generative model which takes into account two different attachment rules: a preferential attachment mechanism and a uniform choice only for the most recent nodes. For a review see the book by
Dorogovtsev and
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On a theoretical level, refinements to the abstract definition of scale-free have been proposed. For example, Li et al. (2005) offered a potentially more precise "scale-free metric". Briefly, let
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are acquaintance relationships between people. It is easy to see that people tend to form communities, i.e., small groups in which everyone knows everyone (one can think of such community as a
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1254:
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to generate scale-free degree distributions. This heterogeneous degree distribution then simply reflects the negative curvature and metric properties of the underlying hyperbolic geometry.
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Many real networks are (approximately) scale-free and hence require scale-free models to describe them. In Price's scheme, there are two ingredients needed to build up a scale-free model:
3651:
870:
893:
and second-neighbour preferential attachment may appear to generate transient scale-free networks, but the degree distribution deviates from a power law as networks become very large.
1381:
2010:
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and Rényi (1960) studied a model of growth for graphs in which, at each step, two nodes are chosen uniformly at random and a link is inserted between them. The properties of these
969:" and which is essentially the same as that proposed by Price. Analytic solutions for this mechanism (also similar to the solution of Price) were presented in 2000 by Dorogovtsev,
2635:
1688:
model studied by Kumar et al. (2000), in which new nodes choose an existent node at random and copy a fraction of the links of the existent node. This also generates a power law.
1529:
is relatively high and less nodes are needed to be immunized. However, in many realistic cases the global structure is not available and the largest degree nodes are not known.
1416:
3132:
1318:
When the concept of "scale-free" was initially introduced in the context of networks, it primarily referred to a specific trait: a power-law distribution for a given variable
3682:
5477:
Hassan, M. K.; Islam, Liana; Arefinul Haque, Syed (2017). "Degree distribution, rank-size distribution, and leadership persistence in mediation-driven attachment networks".
3352:
836:
1933:
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specified the statistical distribution for these vertex properties (fitnesses), it turns out that in some circumstances also static networks develop scale-free properties.
6535:
Li, L.; Alderson, D.; Tanaka, R.; Doyle, J.C.; Willinger, W. (2005). "Towards a Theory of Scale-Free Graphs: Definition, Properties, and
Implications (Extended Version)".
3725:. Theoretically, maximum likelihood estimation with random friends lead to a smaller bias and a smaller variance compared to classical approach based on uniform sampling.
3602:
5763:
A. Hernando; D. Villuendas; C. Vesperinas; M. Abad; A. Plastino (2009). "Unravelling the size distribution of social groups with information theory on complex networks".
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981:. Notably, however, this mechanism only produces a specific subset of networks in the scale-free class, and many alternative mechanisms have been discovered since.
5188:
Hassan, M. K.; Hassan, M. Z.; Pavel, N. I. (2010). "Scale-free coordination number disorder and multifractal size disorder in weighted planar stochastic lattice".
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evolution of real-world scale-free networks, as there might exist different mechanisms at work in real-world systems that nevertheless give rise to scaling.
5212:
Pachon, Angelica; Sacerdote, Laura; Yang, Shuyi (2018). "Scale-free behavior of networks with the copresence of preferential and uniform attachment rules".
1681:. Based on these observations, the authors proposed a generative model that mixes preferential attachment with a baseline probability of gaining a link.
4590:
4222:
Falkenberg, Max; Lee, Jong-Hyeok; Amano, Shun-ichi; Ogawa, Ken-ichiro; Yano, Kazuo; Miyake, Yoshihiro; Evans, Tim S.; Christensen, Kim (18 June 2020).
577:
3360:
6238:
4952:
Steyvers, Mark; Joshua B. Tenenbaum (2005). "The Large-Scale
Structure of Semantic Networks: Statistical Analyses and a Model of Semantic Growth".
4355:, the movie-actor network had a power law regime followed by a sharp cutoff. None of Amaral et al's examples obeyed the power law regime for large
1719:. The recipe of Barabási and Albert has been followed by several variations and generalizations and the revamping of previous mathematical works.
1421:
However, there's a key difference. In statistical field theory, the term "scale" often pertains to system size. In the realm of networks, "scale"
3751:
6702:
5788:
André A. Moreira; Demétrius R. Paula; Raimundo N. Costa Filho; José S. Andrade, Jr. (2006). "Competitive cluster growth in complex networks".
3354:. In the case of World Trade Web it is possible to reconstruct all the properties by using as fitnesses of the country their GDP, and taking
5702:
Krioukov, Dmitri; Papadopoulos, Fragkiskos; Kitsak, Maksim; Vahdat, Amin; Boguñá, Marián (2010). "Hyperbolic geometry of complex networks".
2427:
4156:
Krapivsky, Paul; Krioukov, Dmitri (21 August 2008). "Scale-free networks as preasymptotic regimes of superlinear preferential attachment".
6325:
Dorogovtsev, S.N.; Mendes, J.F.F.; Samukhin, A.N. (2000). "Structure of Growing Networks: Exact Solution of the Barabási—Albert's Model".
1673:
and second neighbour attachment generate networks which are transiently scale-free, but deviate from a power law as networks grow large.
1616:
684:
889:
have been proposed as mechanisms to explain conjectured power law degree distributions in real networks. Alternative models such as
1094:
5283:
1796:
3006:
is not linear, and recent studies have demonstrated that the degree distribution depends strongly on the shape of the function
4667:
4642:
735:
6245:
Caldarelli G.; Capocci A.; De Los Rios P.; Muñoz M.A. (2002). "Scale-free networks from varying vertex intrinsic fitness".
4594:
4359:, i.e. none of these seven examples were shown to be scale-free. See especially the beginning of the discussion section of
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are different from the properties found in scale-free networks, and therefore a model for this growth process is needed.
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890:
567:
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Statistical Field Theory: Volume 2, Strong Coupling, Monte Carlo Methods, Conformal Field Theory and Random Systems
641:
224:
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1666:
970:
3808:
Onnela, J.-P.; Saramaki, J.; Hyvonen, J.; Szabo, G.; Lazer, D.; Kaski, K.; Kertesz, J.; Barabasi, A. -L. (2007).
3717:
3607:
1587:
537:
881:
is more important than knowing whether a network is scale-free according to statistically rigorous definitions.
845:
4785:
Ramezanpour, A.; Karimipour, V.; Mashaghi, A. (2003). "Generating correlated networks from uncorrelated ones".
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886:
527:
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6509:. Vol. 5. Publication of the Mathematical Institute of the Hungarian Academy of Science. pp. 17–61.
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Dorogovtsev, S.; Mendes, J.; Samukhin, A. (2000). "Structure of Growing Networks with Preferential Linking".
954:, though eventually this power law regime was followed by a sharp cutoff showing exponential decay for large
677:
636:
153:
4494:; Riordan, O.; Spencer, J.; Tusnády, G. (2001). "The degree sequence of a scale-free random graph process".
6514:
Faloutsos, M.; Faloutsos, P.; Faloutsos, C. (1999). "On power-law relationships of the internet topology".
5872:"Tail-scope: Using friends to estimate heavy tails of degree distributions in large-scale complex networks"
5849:
Heydari, H.; Taheri, S.M.; Kaveh, K. (2018). "Distributed Maximal Independent Set on Scale-Free Networks".
3923:
Clauset, Aaron; Cosma Rohilla Shalizi; M. E. J Newman (2009). "Power-law distributions in empirical data".
3721:
ends of random links) who are more likely come from the tail of the degree distribution as a result of the
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1967:
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The most widely known generative model for a subset of scale-free networks is Barabási and Albert's (1999)
1002:
482:
326:
273:
88:
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2598:
1786:
1692:
517:
24:
6730:
5641:
Garlaschelli, D.; et al. (2004). "Fitness-Dependent Topological Properties of the World Trade Web".
965:
proposed a generative mechanism to explain the appearance of power-law distributions, which they called "
937:
including some social and biological networks, also had heavy-tailed degree distributions, Barabási and
5952:"Maximum Likelihood Estimation of Power-law Degree Distributions via Friendship Paradox-based Sampling"
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3481:
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edges picks an existing connected node at random and then connects itself, not with that one, but with
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552:
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Statistical Field Theory: Volume 1, From Brownian Motion to Renormalization and Lattice Gauge Theory
3308:
2186:{\displaystyle \Pi (k_{i})={\frac {k_{i}+C\sum _{(i,j)}k_{j}}{\sum _{j}k_{j}+C\sum _{j}k_{j}^{2}}},}
1935:, i.e. there is a nonzero probability that a new node attaches to an isolated node. Thus in general
1777:
There have been several attempts to generate scale-free network properties. Here are some examples:
1903:
933:
905:
showed in 1965 that the number of links to papers—i.e., the number of citations they receive—had a
809:
670:
572:
532:
39:
6399:
Dorogovtsev, S.N.; Goltsev A.V.; Mendes, J.F.F. (2008). "Critical phenomena in complex networks".
5592:
5313:; Zoltán N., Oltvai. (2004). "Network biology: understanding the cell's functional organization".
4351:
Among the seven examples studied by Amaral et al, six of them where single-scale and only example
3581:
430:
6811:
3493:
2414:{\displaystyle \Pi (i)={\frac {k_{i}}{N}}{\frac {\sum _{j=1}^{k_{i}}{\frac {1}{k_{j}}}}{k_{i}}}.}
1742:
1649:
966:
918:
902:
882:
878:
653:
472:
239:
173:
128:
3763: – Features that do not change if length or energy scales are multiplied by a common factor
3656:
6793:
Kasthurirathna, D.; Piraveenan, M. (2015). "Complex Network Study of Brazilian Soccer Player".
2893:
1691:
There are two major components that explain the emergence of the power-law distribution in the
1656:, but did not reach popularity until Barabási rediscovered the results under its current name (
1489:
1480:
557:
542:
457:
1190:
This is maximized when high-degree nodes are connected to other high-degree nodes. Now define
4846:
De Masi, Giulia; et al. (2006). "Fitness model for the Italian interbank money market".
4686:
Meng, Xiangyi; Zhou, Bin (2023). "Scale-Free Networks beyond Power-Law Degree Distribution".
3699:
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1938:
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illusion created by routers, which appear as high-degree nodes while concealing the internal
942:
seven examples. Only one of these examples, the movie-actor network, had degree distribution
789:
658:
477:
447:
336:
291:
23:
Degree distribution for a network with 150000 vertices and mean degree = 6 created using the
3486:
Assuming that a network has an underlying hyperbolic geometry, one can use the framework of
1446:
constitutes "average connectivity" becomes irrelevant, whether it's a hundred or a million.
6757:
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6594:
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The idea is that the link between two vertices is assigned not randomly with a probability
2505:
1418:, evoking parallels with the renormalization group techniques in statistical field theory.
425:
306:
6551:
3212:{\displaystyle P(k)\sim k^{-\gamma }{\text{ with }}\gamma =1+{\frac {\mu }{a_{\infty }}}.}
2669:
1748:
1603:
8:
6738:
Onody, R.N.; de Castro, P.A. (2004). "Complex Network Study of Brazilian Soccer Player".
5139:"Scale-free network topology and multifractality in a weighted planar stochastic lattice"
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3257:
3222:
This way the exponent of the degree distribution can be tuned to any value between 2 and
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910:
706:
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331:
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113:
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Kumar, R.; Raghavan, P.; Rajagopalan, S.; Sivakumar, D.; Tomkins, A.; Upfal, E. (2000).
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Stumpf, M. P. H.; Porter, M. A. (10 February 2012). "Critical Truths About Power Laws".
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1554:, including collaboration networks. Two examples that have been studied extensively are
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2015:
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Properties of random graph may change or remain invariant under graph transformations.
1512:
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1383:. This property maintains its form when subjected to a continuous scale transformation
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978:
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3879:"Scale-Free Graph with Preferential Attachment and Evolving Internal Vertex Structure"
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1735:
598:
264:
214:
123:
98:
6785:
5835:
5688:
5577:
5516:
5342:
4893:
4832:
4203:
6765:
6714:
6672:
6662:
6602:
6523:
6473:
6438:
6426:
6352:
6313:
6272:
6230:
6210:
6166:
6097:
6087:
6036:
5973:
5919:
5901:
5815:
5749:
5729:
5668:
5615:
5557:
5504:
5382:
5322:
5275:
5239:
5168:
5109:
5099:
5053:
5033:
4991:
4971:
4932:
4924:
4873:
4812:
4756:
4713:
4564:
4523:
4503:
4457:
4402:
4392:
4310:
4253:
4183:
4119:
4074:
4064:
4015:
4007:
3962:
3950:
3898:
3849:
3839:
3760:
1790:
1593:
1566:
1533:
1497:
357:
346:
244:
204:
188:
27:(blue dots). The distribution follows an analytical form given by the ratio of two
6559:
Proceedings of the 41st Annual Symposium on Foundations of Computer Science (FOCS)
6485:
6276:
5672:
5619:
4760:
4595:"Mathematics and the Internet: A Source of Enormous Confusion and Great Potential"
4576:
4338:
6549:
6048:
4511:
4318:
4314:
3766:
3487:
1661:
1644:
1307:
839:
702:
593:
374:
249:
158:
93:
47:
6640:
6356:
6317:
5508:
5386:
5243:
4928:
4907:
Soramäki, Kimmo; et al. (2007). "The topology of interbank payment flows".
4717:
4461:
3465:{\displaystyle p(x_{i},x_{j})={\frac {\delta x_{i}x_{j}}{1+\delta x_{i}x_{j}}}.}
1559:
6769:
6501:
6430:
6244:
6214:
5819:
5733:
5561:
4975:
4877:
4816:
4281:; Albert, Réka. (October 15, 1999). "Emergence of scaling in random networks".
4187:
4069:
4011:
3528:
3520:
3039:
2709:
value increases the disparity between the super rich and poor decreases and as
1578:
1551:
1485:
603:
409:
384:
379:
353:
342:
219:
183:
178:
138:
76:
28:
6477:
5530:
Ravasz, E.; Barabási (2003). "Hierarchical organization in complex networks".
4568:
3903:
3878:
3494:
Edge dual transformation to generate scale free graphs with desired properties
2735:
we find a transition from rich get super richer to rich get richer mechanism.
962:
938:
929:
6805:
6643:"Winners don't take all: Characterizing the competition for links on the web"
6606:
6324:
6040:
5987:
5915:
5279:
5274:. Foundations of Computer Science, 41st Annual Symposium on. pp. 57–65.
3685:
994:
974:
562:
467:
452:
394:
143:
133:
6641:
Pennock, D.M.; Flake, G.W.; Lawrence, S.; Glover, E.J.; Giles, C.L. (2002).
6575:
Newman, Mark E.J. (2003). "The structure and function of complex networks".
6493:
5762:
5104:
4123:
3844:
1633:
1454:
1278:
in the set of all graphs with degree distribution identical to that of
6777:
6726:
6686:
6667:
6398:
6364:
6284:
6222:
6178:
6111:
6092:
5933:
5827:
5741:
5680:
5627:
5569:
5334:
5123:
5045:
4983:
4885:
4824:
4768:
4469:
4416:
4397:
4330:
4195:
4131:
4088:
4029:
3863:
3734:
1637:
507:
404:
259:
6527:
3922:
6752:
6589:
6541:
6460:
6339:
6259:
6074:
6023:
5802:
5655:
5544:
5425:
S. N. Dorogovtsev, J. F. F. Mendes, and A. N. Samukhim, cond-mat/0011115.
4966:
4799:
4551:
4444:
4379:
4297:
5037:
4860:
3826:
3604:, the induced subgraph constructed by vertices with degrees larger than
6718:
6624:
Evolution and Structure of the Internet: A Statistical Physics Approach
6534:
6513:
6382:
Evolution of Networks: from biological networks to the Internet and WWW
4937:
1624:
rule which also embodies preferential attachment rule but in disguise.
990:
442:
399:
389:
5906:
4537:
Dorogovtsev, S. N.; Mendes, J. F. F. (2002). "Evolution of networks".
3954:
2689:
of the total nodes has degree one and one is super-rich in degree. As
2666:
it describes the winner takes it all mechanism as we find that almost
2495:{\displaystyle {\frac {\sum _{j=1}^{k_{i}}{\frac {1}{k_{j}}}}{k_{i}}}}
5305:
5303:
4507:
4273:
4271:
4269:
4151:
4149:
3507:
1306:) close to 1 is "scale-free". This definition captures the notion of
914:
710:
607:
163:
6293:
5978:
5951:
5362:
5326:
4589:
3502:
1738:. Usually we concentrate on growing the network, i.e. adding nodes.
924:
Recent interest in scale-free networks started in 1999 with work by
60:
6446:
Dorogovtsev, S.N.; Mendes, J.F.F. (2002). "Evolution of networks".
5968:
5855:
5226:
4700:
4240:
3994:
3772:
2549:. Extensive numerical investigation suggest that for approximately
1657:
1574:
1570:
986:
901:
In studies of the networks of citations between scientific papers,
6413:
5888:
5769:
5716:
5491:
5300:
5155:
5086:
5020:
4266:
4170:
4146:
3937:
6642:
6621:
5463:
S. Bomholdt and H. Ebel, cond-mat/0008465; H.A. Simon, Bimetrika
5070:"Optimum inhomogeneity of local lattice distortions in La2CuO4+y"
998:
6792:
6055:
5848:
5701:
4360:
3281:
equal for all the couple of vertices. Rather, for every vertex
1677:
distribution of links was no longer a power law but resembled a
6445:
6379:
6141:
3743: – Two closely related models for generating random graphs
1479:
Another important characteristic of scale-free networks is the
6188:"Topology of Large-Scale Engineering Problem-Solving Networks"
3810:"Structure and tie strengths in mobile communication networks"
3253:
are, by design, scale free and have high clustering of nodes.
4784:
4490:
3269: = 125, and the process can continue indefinitely.
5437:
P.L. Krapivsky, S. Redner, and F. Leyvraz, Phys. Rev. Lett.
2502:
is the inverse of the harmonic mean (IHM) of degrees of the
1466:
Complex network degree distribution of random and scale-free
1180:{\displaystyle s(G)=\sum _{(u,v)\in E}\deg(u)\cdot \deg(v).}
977:, and Leyvraz, and later rigorously proved by mathematician
5950:
Nettasinghe, Buddhika; Krishnamurthy, Vikram (2021-05-19).
5593:"Scale-free networks from varying vertex intrinsic fitness"
4951:
1861:{\displaystyle \Pi (k_{i})={\frac {k_{i}}{\sum _{j}k_{j}}}}
1607:
A snapshot of the weighted planar stochastic lattice (WPSL)
1584:
Some financial networks such as interbank payment networks
6737:
4045:"Rare and everywhere: Perspectives on scale-free networks"
3876:
3807:
2207:
5476:
4429:
2256:
of its neighbors, also chosen at random. The probability
5949:
6185:
6118:
6004:
5066:
5004:
4739:
Tanaka, Reiko (2005). "Scale-Rich Metabolic Networks".
4221:
3716:
of a scale-free network is typically done by using the
2841:. This assumption involves two hypotheses: first, that
2749:
The Barabási–Albert model assumes that the probability
1546:
examples of networks claimed to be scale-free include:
1537:
as such, remain scale free under such transformations.
776:{\displaystyle P(k)\ \sim \ k^{\boldsymbol {-\gamma }}}
6123:
Linked: How Everything is Connected to Everything Else
6056:
Amaral LAN, Scala A, Barthelemy M, Stanley HE (2000).
4662:(1st ed.). New York: Cambridge University Press.
4637:(1st ed.). New York: Cambridge University Press.
4361:
Amaral LAN, Scala A, Barthelemy M, Stanley HE (2000).
1715:
There has been a burst of activity in the modeling of
812:
5367:
Physica A: Statistical Mechanics and Its Applications
4909:
Physica A: Statistical Mechanics and Its Applications
3769: – Network with non-trivial topological features
3702:
3659:
3610:
3584:
3564:
3363:
3311:
3228:
3143:
3107:
3048:
3012:
2983:
2960:
2931:
2896:
2876:
2847:
2827:
2807:
2784:
2755:
2738:
2715:
2695:
2672:
2646:
2601:
2581:
2555:
2535:
2508:
2430:
2314:
2291:
2262:
2242:
2222:
2050:
2018:
1970:
1941:
1906:
1877:
1799:
1751:
1515:
1427:
1389:
1344:
1324:
1282:. This gives a metric between 0 and 1, where a graph
1199:
1097:
1062:
1042:
1022:
848:
806:
is a parameter whose value is typically in the range
792:
738:
16:
Network whose degree distribution follows a power law
6142:
Barabási, Albert-László; Bonabeau, Eric (May 2003).
3789:
Pages displaying wikidata descriptions as a fallback
3756:
Pages displaying wikidata descriptions as a fallback
3691:
1765:
that new nodes will be connected to the "old" node.
993:
data; however, it has been suggested that this is a
989:
had a power law degree distribution on the basis of
725:
connections to other nodes goes for large values of
6561:. Redondo Beach, CA: IEEE CS Press. pp. 57–65.
5211:
5137:Hassan, M. K.; Hassan, M. Z.; Pavel, N. I. (2010).
4780:
4778:
3975:
3877:Choromański, K.; Matuszak, M.; MiȩKisz, J. (2013).
2977:In non-linear preferential attachment, the form of
6120:
4681:
4679:
4651:
4626:
3708:
3676:
3645:
3596:
3570:
3464:
3346:
3234:
3211:
3126:
3093:
3027:
2998:
2966:
2946:
2917:
2882:
2862:
2833:
2813:
2790:
2770:
2727:
2701:
2681:
2658:
2629:
2587:
2567:
2541:
2521:
2494:
2413:
2297:
2277:
2248:
2228:
2185:
2024:
2004:
1956:
1927:
1892:
1860:
1757:
1632:Scale-free networks do not arise by chance alone.
1521:
1433:
1410:
1375:
1330:
1248:
1179:
1080:
1048:
1028:
864:
830:
798:
775:
6574:
5956:ACM Transactions on Knowledge Discovery from Data
5309:
5187:
5136:
4536:
4155:
3503:Uniform-preferential-attachment model (UPA model)
713:, at least asymptotically. That is, the fraction
6803:
4775:
3094:{\displaystyle \Pi (k_{i})\sim a_{\infty }k_{i}}
1236:
6291:
5412:R. Albert, and A.L. Barabási, Phys. Rev. Lett.
4676:
4658:Itzykson, Claude; Drouffe, Jean-Michel (1989).
4657:
4633:Itzykson, Claude; Drouffe, Jean-Michel (1989).
4632:
4224:"Identifying time dependence in network growth"
3814:Proceedings of the National Academy of Sciences
3781: – Scale-free network generation algorithm
1710:
1249:{\displaystyle S(G)={\frac {s(G)}{s_{\max }}},}
31:(black line) which approximates as a power-law.
5529:
4732:
4277:
3475:
5264:
4608:(5). American Mathematical Society: 586–599.
3546:is the cause of the phenomenon known as the '
3245:
1560:the co-authorship by mathematicians of papers
1458:Random network (a) and scale-free network (b)
973:and Samukhin and independently by Krapivsky,
678:
6700:
6622:Pastor-Satorras, R.; Vespignani, A. (2004).
5640:
4593:; David Alderson; John C. Doyle (May 2009).
4101:
3514:
2032:is the initial attractiveness of the node.)
1780:
1612:random oxygen atoms and lattice distortion.
950:) following a power law regime for moderate
6565:
6294:"Generation models for scale-free networks"
6007:"Statistical mechanics of complex networks"
5870:Eom, Young-Ho; Jo, Hang-Hyun (2015-05-11).
5363:"Generation models for scale-free networks"
4217:
4215:
4213:
3752:Bose–Einstein condensation (network theory)
3737: – Graph generated by a random process
3646:{\displaystyle \log {n}\times \log ^{*}{n}}
6492:
6380:Dorogovtsev, S.N.; Mendes, J.F.F. (2003).
5695:
5590:
5360:
3976:Broido, Anna; Aaron Clauset (2019-03-04).
3134:. In this case the rate equation leads to
2925:, and second, that the functional form of
2035:
1868:and adds one new node at every time step.
1556:the collaboration of movie actors in films
1036:(that is, the number of edges incident to
865:{\displaystyle k^{\boldsymbol {-\gamma }}}
685:
671:
6751:
6676:
6666:
6588:
6540:
6459:
6412:
6338:
6258:
6101:
6091:
6073:
6022:
5977:
5967:
5923:
5905:
5887:
5854:
5801:
5768:
5715:
5654:
5543:
5490:
5265:Kumar, Ravi; Raghavan, Prabhakar (2000).
5225:
5172:
5154:
5113:
5103:
5085:
5019:
4965:
4936:
4859:
4798:
4699:
4583:
4550:
4443:
4406:
4396:
4378:
4296:
4257:
4239:
4169:
4078:
4068:
4019:
3993:
3936:
3918:
3916:
3914:
3902:
3853:
3843:
3825:
1617:weighted planar stochastic lattice (WPSL)
4906:
4685:
4210:
3553:
2890:, in contrast to random graphs in which
1602:
1461:
1453:
1376:{\displaystyle f(k)\propto k^{-\gamma }}
18:
6241:Oxford University Press, Oxford (2007).
5433:
5431:
5399:Barabási, A.-L. and R. Albert, Science
4845:
2214:mediation-driven attachment (MDA) model
2208:Mediation-driven attachment (MDA) model
2200:is a coefficient between 0 and 1.
857:
768:
6804:
5356:
5354:
5352:
5207:
5205:
5203:
4738:
3911:
6552:"Stochastic models for the web graph"
5945:
5943:
5869:
5444:
4042:
3969:
2595:limit becomes a constant which means
2005:{\displaystyle \Pi (k)=A+k^{\alpha }}
1793:has a linear preferential attachment
5591:Caldarelli, G.; et al. (2002).
5428:
5419:
3775: – Graph of connected web pages
2630:{\displaystyle \Pi (i)\propto k_{i}}
1671:super-linear preferential attachment
1627:
1615:A space-filling cellular structure,
1016:, and denote the degree of a vertex
891:super-linear preferential attachment
5634:
5584:
5523:
5457:
5349:
5268:Stochastic Models for the Web Graph
5200:
13:
6703:"Revisiting "scale-free" networks"
6186:Dan Braha; Yaneer Bar-Yam (2004).
6005:Albert R.; Barabási A.-L. (2002).
5998:
5940:
5406:
5393:
3747:Non-linear preferential attachment
3696:Estimating the power-law exponent
3229:
3199:
3121:
3076:
3049:
3013:
2984:
2932:
2897:
2848:
2756:
2745:Non-linear preferential attachment
2739:Non-linear preferential attachment
2676:
2602:
2315:
2263:
2051:
1971:
1942:
1907:
1878:
1871:(Note, another general feature of
1800:
1752:
1449:
1310:implied in the name "scale-free".
14:
6828:
6695:Scale-Free Networks and Terrorism
6503:On the Evolution of Random Graphs
6171:10.1038/scientificamerican0503-60
6058:"Classes of small-world networks"
5361:Dangalchev, Chavdar (July 2004).
4363:"Classes of small-world networks"
3692:Estimating the power law exponent
1622:mediation-driven attachment model
1411:{\displaystyle k\to k+\epsilon k}
721:) of nodes in the network having
6566:Matlis, Jan (November 4, 2002).
6119:Barabási, Albert-László (2004).
4496:Random Structures and Algorithms
4259:10.1103/PhysRevResearch.2.023352
3787: – model in network science
3754: – model in network science
3272:
3127:{\displaystyle k_{i}\to \infty }
2575:the mean IHM value in the large
1684:Another generative model is the
854:
765:
59:
5863:
5842:
5781:
5756:
5470:
5289:from the original on 2016-03-03
5258:
5181:
5130:
5060:
4998:
4945:
4900:
4839:
4615:from the original on 2011-05-15
4530:
4484:
4423:
4345:
4043:Holme, Petter (December 2019).
3305:is created with a probability
2305:of the existing node picked is
1503:
1294:) is "scale-rich", and a graph
6626:. Cambridge University Press.
5214:Physica D: Nonlinear Phenomena
4688:Chaos, Solitons & Fractals
4095:
4036:
3978:"Scale-free networks are rare"
3883:Journal of Statistical Physics
3870:
3801:
3558:For a scale-free network with
3393:
3367:
3347:{\displaystyle p(x_{i},x_{j})}
3341:
3315:
3153:
3147:
3118:
3065:
3052:
3022:
3016:
2993:
2987:
2941:
2935:
2906:
2900:
2857:
2851:
2765:
2759:
2611:
2605:
2324:
2318:
2272:
2266:
2109:
2097:
2067:
2054:
1980:
1974:
1951:
1945:
1916:
1910:
1887:
1881:
1816:
1803:
1393:
1354:
1348:
1227:
1221:
1209:
1203:
1171:
1165:
1153:
1147:
1130:
1118:
1107:
1101:
1075:
1069:
831:{\textstyle 2<\gamma <3}
748:
742:
1:
6277:10.1103/PhysRevLett.89.258702
5673:10.1103/physrevlett.93.188701
5620:10.1103/physrevlett.89.258702
5174:10.1088/1367-2630/12/9/093045
4761:10.1103/PhysRevLett.94.168101
3794:
3718:maximum likelihood estimation
3653:is a scale-free network with
3578:nodes and power-law exponent
2778:that a node attaches to node
1928:{\displaystyle \Pi (0)\neq 0}
1772:
1474:
4315:10.1126/science.286.5439.509
3597:{\displaystyle \gamma >3}
1711:Generalized scale-free model
838:(wherein the second moment (
7:
6384:. Oxford University Press.
6357:10.1103/PhysRevLett.85.4633
6318:10.1016/j.physa.2004.01.056
5777:European Physical Journal B
5509:10.1016/j.physa.2016.11.001
5387:10.1016/j.physa.2004.01.056
5244:10.1016/j.physd.2018.01.005
4929:10.1016/j.physa.2006.11.093
4718:10.1016/j.chaos.2023.114173
4462:10.1103/PhysRevLett.85.4633
3728:
3476:Hyperbolic geometric graphs
3251:Hierarchical network models
1789:, an undirected version of
1726:
1717:scale-free complex networks
1588:Protein–protein interaction
1540:
1313:
10:
6833:
6770:10.1103/PhysRevE.70.037103
6431:10.1103/RevModPhys.80.1275
6215:10.1103/PhysRevE.69.016113
5820:10.1103/PhysRevE.73.065101
5734:10.1103/PhysRevE.82.036106
5562:10.1103/physreve.67.026112
4976:10.1207/s15516709cog2901_3
4878:10.1103/PhysRevE.74.066112
4817:10.1103/PhysRevE.67.046107
4188:10.1103/PhysRevE.78.026114
4070:10.1038/s41467-019-09038-8
4012:10.1038/s41467-019-08746-5
3677:{\displaystyle \gamma '=2}
3482:Hyperbolic geometric graph
3479:
3297:and a link between vertex
3246:Hierarchical network model
2742:
1669:. Some mechanisms such as
896:
6478:10.1080/00018730110112519
4569:10.1080/00018730110112519
3904:10.1007/s10955-013-0749-1
3548:six degrees of separation
3515:Scale-free ideal networks
2918:{\displaystyle \Pi (k)=p}
2216:, a new node coming with
1900:in real networks is that
1781:The Barabási–Albert model
1012:be a graph with edge set
907:heavy-tailed distribution
538:Exponential random (ERGM)
205:Informational (computing)
6607:10.1137/S003614450342480
6292:Dangalchev, Ch. (2004).
6041:10.1103/RevModPhys.74.47
5280:10.1109/SFCS.2000.892065
4228:Physical Review Research
3525:scale-free ideal network
1266:is the maximum value of
934:University of Notre Dame
225:Scientific collaboration
6247:Physical Review Letters
5315:Nature Reviews Genetics
5311:Barabási, Albert-László
5105:10.1073/pnas.1208492109
4432:Physical Review Letters
4279:Barabási, Albert-László
4124:10.1126/science.1216142
3845:10.1073/pnas.0610245104
3785:Bianconi–Barabási model
3709:{\displaystyle \gamma }
3235:{\displaystyle \infty }
3028:{\displaystyle \Pi (k)}
2999:{\displaystyle \Pi (k)}
2947:{\displaystyle \Pi (k)}
2863:{\displaystyle \Pi (k)}
2798:is proportional to the
2771:{\displaystyle \Pi (k)}
2728:{\displaystyle m>14}
2568:{\displaystyle m>14}
2278:{\displaystyle \Pi (i)}
2036:Two-level network model
1957:{\displaystyle \Pi (k)}
1893:{\displaystyle \Pi (k)}
1743:Preferential attachment
1652:in 1965 under the term
1650:Derek J. de Solla Price
1081:{\displaystyle \deg(v)}
967:preferential attachment
919:preferential attachment
883:Preferential attachment
799:{\displaystyle \gamma }
654:Category:Network theory
174:Preferential attachment
6668:10.1073/pnas.032085699
6093:10.1073/pnas.200327197
5143:New Journal of Physics
4398:10.1073/pnas.200327197
3710:
3678:
3647:
3598:
3572:
3466:
3348:
3285:there is an intrinsic
3236:
3213:
3128:
3095:
3029:
3000:
2968:
2948:
2919:
2884:
2864:
2835:
2815:
2792:
2772:
2729:
2703:
2683:
2660:
2631:
2589:
2569:
2543:
2523:
2496:
2461:
2415:
2377:
2299:
2279:
2250:
2230:
2187:
2026:
2006:
1958:
1929:
1894:
1862:
1759:
1734:1. Adding or removing
1608:
1523:
1490:small-world phenomenon
1481:clustering coefficient
1467:
1459:
1435:
1412:
1377:
1332:
1250:
1181:
1082:
1050:
1030:
926:Albert-László Barabási
866:
832:
800:
777:
543:Random geometric (RGG)
32:
6701:Keller, E.F. (2005).
6568:"Scale-Free Networks"
6528:10.1145/316194.316229
6144:"Scale-Free Networks"
4049:Nature Communications
3982:Nature Communications
3779:Barabási–Albert model
3711:
3679:
3648:
3599:
3573:
3554:Novel characteristics
3467:
3349:
3237:
3214:
3129:
3096:
3030:
3001:
2969:
2949:
2920:
2885:
2865:
2836:
2816:
2793:
2773:
2730:
2704:
2684:
2661:
2632:
2590:
2570:
2544:
2524:
2522:{\displaystyle k_{i}}
2497:
2434:
2416:
2350:
2300:
2280:
2251:
2231:
2188:
2027:
2007:
1959:
1930:
1895:
1863:
1787:Barabási–Albert model
1760:
1693:Barabási–Albert model
1606:
1524:
1465:
1457:
1436:
1413:
1378:
1333:
1251:
1182:
1083:
1051:
1031:
867:
833:
801:
778:
659:Category:Graph theory
25:Barabási–Albert model
22:
6239:Scale-Free Networks"
5450:B. Tadic, Physica A
3700:
3657:
3608:
3582:
3562:
3540:density distribution
3537:scale-free ideal gas
3361:
3309:
3226:
3141:
3105:
3046:
3010:
2981:
2958:
2929:
2894:
2874:
2845:
2825:
2805:
2782:
2753:
2713:
2693:
2682:{\displaystyle 99\%}
2670:
2644:
2599:
2579:
2553:
2533:
2529:neighbors of a node
2506:
2428:
2312:
2289:
2260:
2240:
2220:
2048:
2016:
1968:
1939:
1904:
1875:
1797:
1758:{\displaystyle \Pi }
1749:
1654:cumulative advantage
1513:
1425:
1387:
1342:
1322:
1197:
1095:
1060:
1040:
1020:
903:Derek de Solla Price
846:
810:
790:
736:
6762:2004PhRvE..70c7103O
6659:2002PNAS...99.5207P
6599:2003SIAMR..45..167N
6470:2002AdPhy..51.1079D
6448:Advances in Physics
6423:2008RvMP...80.1275D
6349:2000PhRvL..85.4633D
6310:2004PhyA..338..659D
6269:2002PhRvL..89y8702C
6207:2004PhRvE..69a6113B
6163:2003SciAm.288e..60B
6151:Scientific American
6084:2000PNAS...9711149A
6033:2002RvMP...74...47A
5898:2015NatSR...5E9752E
5812:2006PhRvE..73f5101M
5726:2010PhRvE..82c6106K
5665:2004PhRvL..93r8701G
5612:2002PhRvL..89y8702C
5554:2003PhRvE..67b6112R
5501:2017PhyA..469...23H
5379:2004PhyA..338..659D
5236:2018PhyD..371....1P
5190:J. Phys.: Conf. Ser
5165:2010NJPh...12i3045H
5096:2012PNAS..10915685P
5080:(39): 15685–15690.
5038:10.1038/nature09260
5030:2010Natur.466..841F
4921:2007PhyA..379..317S
4870:2006PhRvE..74f6112D
4809:2003PhRvE..67d6107R
4753:2005PhRvL..94p8101T
4710:2023CSF...17614173M
4561:2002AdPhy..51.1079D
4539:Advances in Physics
4454:2000PhRvL..85.4633D
4389:2000PNAS...9711149A
4307:1999Sci...286..509B
4250:2020PhRvR...2b3352F
4180:2008PhRvE..78b6114K
4116:2012Sci...335..665S
4061:2019NatCo..10.1016H
4004:2019NatCo..10.1017B
3947:2009SIAMR..51..661C
3895:2013JSP...151.1175C
3836:2007PNAS..104.7332O
3533:degree distribution
2659:{\displaystyle m=1}
2176:
1679:normal distribution
1005:they interconnect.
911:Pareto distribution
707:degree distribution
463:Degree distribution
114:Community structure
6719:10.1002/bies.20294
5876:Scientific Reports
4602:Notices of the AMS
3723:friendship paradox
3706:
3674:
3643:
3594:
3568:
3519:In the context of
3462:
3344:
3232:
3209:
3124:
3091:
3025:
2996:
2964:
2944:
2915:
2880:
2860:
2831:
2811:
2788:
2768:
2725:
2699:
2679:
2656:
2627:
2585:
2565:
2539:
2519:
2492:
2411:
2295:
2275:
2246:
2226:
2183:
2162:
2161:
2135:
2113:
2022:
2002:
1954:
1925:
1890:
1858:
1844:
1755:
1745:: The probability
1609:
1519:
1468:
1460:
1431:
1408:
1373:
1328:
1246:
1177:
1140:
1078:
1046:
1026:
862:
828:
796:
773:
699:scale-free network
647:Network scientists
573:Soft configuration
33:
5907:10.1038/srep09752
5790:Physical Review E
5704:Physical Review E
4954:Cognitive Science
4848:Physical Review E
4669:978-0-521-37012-7
4644:978-0-521-34058-8
4591:Willinger, Walter
4438:(21): 4633–4636.
4291:(5439): 509–512.
4158:Physical Review E
4110:(6069): 665–666.
3955:10.1137/070710111
3820:(18): 7332–7336.
3741:Erdős–Rényi model
3571:{\displaystyle n}
3457:
3204:
3175:
2967:{\displaystyle k}
2883:{\displaystyle k}
2834:{\displaystyle i}
2814:{\displaystyle k}
2791:{\displaystyle i}
2702:{\displaystyle m}
2588:{\displaystyle N}
2542:{\displaystyle i}
2490:
2477:
2406:
2393:
2345:
2298:{\displaystyle i}
2249:{\displaystyle m}
2229:{\displaystyle m}
2178:
2152:
2126:
2092:
2025:{\displaystyle A}
1856:
1835:
1628:Generative models
1599:Airline networks.
1594:Semantic networks
1567:computer networks
1522:{\displaystyle c}
1434:{\displaystyle k}
1331:{\displaystyle k}
1241:
1113:
1049:{\displaystyle v}
1029:{\displaystyle v}
1001:structure of the
759:
753:
695:
694:
615:
614:
523:Bianconi–Barabási
417:
416:
235:Artificial neural
210:Telecommunication
6824:
6798:
6789:
6755:
6753:cond-mat/0409609
6734:
6729:. Archived from
6690:
6680:
6670:
6637:
6618:
6592:
6590:cond-mat/0303516
6571:
6562:
6556:
6546:
6544:
6542:cond-mat/0501169
6531:
6510:
6508:
6489:
6463:
6461:cond-mat/0106144
6454:(4): 1079–1187.
6442:
6416:
6407:(4): 1275–1335.
6395:
6376:
6342:
6340:cond-mat/0004434
6321:
6304:(3–4): 659–671.
6288:
6262:
6260:cond-mat/0207366
6234:
6192:
6182:
6148:
6138:
6126:
6115:
6105:
6095:
6077:
6075:cond-mat/0001458
6068:(21): 11149–52.
6052:
6026:
6024:cond-mat/0106096
5992:
5991:
5981:
5971:
5947:
5938:
5937:
5927:
5909:
5891:
5867:
5861:
5860:
5858:
5846:
5840:
5839:
5805:
5803:cond-mat/0603272
5785:
5779:
5774:
5772:
5760:
5754:
5753:
5719:
5699:
5693:
5692:
5658:
5656:cond-mat/0403051
5638:
5632:
5631:
5597:
5588:
5582:
5581:
5547:
5545:cond-mat/0206130
5527:
5521:
5520:
5494:
5474:
5468:
5461:
5455:
5448:
5442:
5435:
5426:
5423:
5417:
5410:
5404:
5397:
5391:
5390:
5373:(3–4): 659–671.
5358:
5347:
5346:
5307:
5298:
5297:
5295:
5294:
5288:
5273:
5262:
5256:
5255:
5229:
5209:
5198:
5197:
5185:
5179:
5178:
5176:
5158:
5134:
5128:
5127:
5117:
5107:
5089:
5064:
5058:
5057:
5023:
5002:
4996:
4995:
4969:
4967:cond-mat/0110012
4949:
4943:
4942:
4940:
4904:
4898:
4897:
4863:
4843:
4837:
4836:
4802:
4800:cond-mat/0212469
4782:
4773:
4772:
4736:
4730:
4729:
4703:
4683:
4674:
4673:
4655:
4649:
4648:
4630:
4624:
4623:
4621:
4620:
4614:
4599:
4587:
4581:
4580:
4554:
4552:cond-mat/0106144
4545:(4): 1079–1187.
4534:
4528:
4527:
4508:10.1002/rsa.1009
4488:
4482:
4481:
4447:
4445:cond-mat/0004434
4427:
4421:
4420:
4410:
4400:
4382:
4380:cond-mat/0001458
4373:(21): 11149–52.
4349:
4343:
4342:
4300:
4298:cond-mat/9910332
4275:
4264:
4263:
4261:
4243:
4219:
4208:
4207:
4173:
4153:
4144:
4143:
4099:
4093:
4092:
4082:
4072:
4040:
4034:
4033:
4023:
3997:
3973:
3967:
3966:
3940:
3920:
3909:
3908:
3906:
3889:(6): 1175–1183.
3874:
3868:
3867:
3857:
3847:
3829:
3805:
3790:
3761:Scale invariance
3757:
3715:
3713:
3712:
3707:
3683:
3681:
3680:
3675:
3667:
3652:
3650:
3649:
3644:
3642:
3634:
3633:
3621:
3603:
3601:
3600:
3595:
3577:
3575:
3574:
3569:
3488:spatial networks
3471:
3469:
3468:
3463:
3458:
3456:
3455:
3454:
3445:
3444:
3425:
3424:
3423:
3414:
3413:
3400:
3392:
3391:
3379:
3378:
3353:
3351:
3350:
3345:
3340:
3339:
3327:
3326:
3241:
3239:
3238:
3233:
3218:
3216:
3215:
3210:
3205:
3203:
3202:
3190:
3176:
3174: with
3173:
3171:
3170:
3133:
3131:
3130:
3125:
3117:
3116:
3100:
3098:
3097:
3092:
3090:
3089:
3080:
3079:
3064:
3063:
3034:
3032:
3031:
3026:
3005:
3003:
3002:
2997:
2973:
2971:
2970:
2965:
2953:
2951:
2950:
2945:
2924:
2922:
2921:
2916:
2889:
2887:
2886:
2881:
2869:
2867:
2866:
2861:
2840:
2838:
2837:
2832:
2820:
2818:
2817:
2812:
2797:
2795:
2794:
2789:
2777:
2775:
2774:
2769:
2734:
2732:
2731:
2726:
2708:
2706:
2705:
2700:
2688:
2686:
2685:
2680:
2665:
2663:
2662:
2657:
2636:
2634:
2633:
2628:
2626:
2625:
2594:
2592:
2591:
2586:
2574:
2572:
2571:
2566:
2548:
2546:
2545:
2540:
2528:
2526:
2525:
2520:
2518:
2517:
2501:
2499:
2498:
2493:
2491:
2489:
2488:
2479:
2478:
2476:
2475:
2463:
2460:
2459:
2458:
2448:
2432:
2420:
2418:
2417:
2412:
2407:
2405:
2404:
2395:
2394:
2392:
2391:
2379:
2376:
2375:
2374:
2364:
2348:
2346:
2341:
2340:
2331:
2304:
2302:
2301:
2296:
2284:
2282:
2281:
2276:
2255:
2253:
2252:
2247:
2235:
2233:
2232:
2227:
2192:
2190:
2189:
2184:
2179:
2177:
2175:
2170:
2160:
2145:
2144:
2134:
2124:
2123:
2122:
2112:
2085:
2084:
2074:
2066:
2065:
2031:
2029:
2028:
2023:
2011:
2009:
2008:
2003:
2001:
2000:
1963:
1961:
1960:
1955:
1934:
1932:
1931:
1926:
1899:
1897:
1896:
1891:
1867:
1865:
1864:
1859:
1857:
1855:
1854:
1853:
1843:
1833:
1832:
1823:
1815:
1814:
1764:
1762:
1761:
1756:
1569:, including the
1528:
1526:
1525:
1520:
1440:
1438:
1437:
1432:
1417:
1415:
1414:
1409:
1382:
1380:
1379:
1374:
1372:
1371:
1337:
1335:
1334:
1329:
1255:
1253:
1252:
1247:
1242:
1240:
1239:
1230:
1216:
1186:
1184:
1183:
1178:
1139:
1087:
1085:
1084:
1079:
1055:
1053:
1052:
1047:
1035:
1033:
1032:
1027:
871:
869:
868:
863:
861:
860:
837:
835:
834:
829:
805:
803:
802:
797:
782:
780:
779:
774:
772:
771:
757:
751:
687:
680:
673:
558:Stochastic block
548:Hyperbolic (HGN)
497:
496:
360:
349:
281:
280:
189:Social influence
63:
35:
34:
6832:
6831:
6827:
6826:
6825:
6823:
6822:
6821:
6802:
6801:
6634:
6554:
6516:Comp. Comm. Rev
6506:
6392:
6327:Phys. Rev. Lett
6237:Caldarelli G. "
6190:
6146:
6135:
6127:. Perseus Pub.
6001:
5999:Further reading
5996:
5995:
5979:10.1145/3451166
5948:
5941:
5868:
5864:
5847:
5843:
5786:
5782:
5775:, submitted to
5761:
5757:
5700:
5696:
5643:Phys. Rev. Lett
5639:
5635:
5600:Phys. Rev. Lett
5595:
5589:
5585:
5528:
5524:
5475:
5471:
5462:
5458:
5449:
5445:
5436:
5429:
5424:
5420:
5411:
5407:
5398:
5394:
5359:
5350:
5327:10.1038/nrg1272
5308:
5301:
5292:
5290:
5286:
5271:
5263:
5259:
5210:
5201:
5186:
5182:
5135:
5131:
5065:
5061:
5014:(7308): 841–4.
5003:
4999:
4950:
4946:
4905:
4901:
4861:physics/0610108
4844:
4840:
4783:
4776:
4741:Phys. Rev. Lett
4737:
4733:
4684:
4677:
4670:
4656:
4652:
4645:
4631:
4627:
4618:
4616:
4612:
4597:
4588:
4584:
4535:
4531:
4489:
4485:
4428:
4424:
4350:
4346:
4276:
4267:
4220:
4211:
4154:
4147:
4100:
4096:
4041:
4037:
3974:
3970:
3921:
3912:
3875:
3871:
3827:physics/0610104
3806:
3802:
3797:
3788:
3767:Complex network
3755:
3731:
3701:
3698:
3697:
3694:
3660:
3658:
3655:
3654:
3638:
3629:
3625:
3617:
3609:
3606:
3605:
3583:
3580:
3579:
3563:
3560:
3559:
3556:
3544:Dunbar's number
3517:
3505:
3496:
3484:
3478:
3450:
3446:
3440:
3436:
3426:
3419:
3415:
3409:
3405:
3401:
3399:
3387:
3383:
3374:
3370:
3362:
3359:
3358:
3335:
3331:
3322:
3318:
3310:
3307:
3306:
3296:
3275:
3248:
3227:
3224:
3223:
3198:
3194:
3189:
3172:
3163:
3159:
3142:
3139:
3138:
3112:
3108:
3106:
3103:
3102:
3085:
3081:
3075:
3071:
3059:
3055:
3047:
3044:
3043:
3011:
3008:
3007:
2982:
2979:
2978:
2959:
2956:
2955:
2930:
2927:
2926:
2895:
2892:
2891:
2875:
2872:
2871:
2846:
2843:
2842:
2826:
2823:
2822:
2806:
2803:
2802:
2783:
2780:
2779:
2754:
2751:
2750:
2747:
2741:
2714:
2711:
2710:
2694:
2691:
2690:
2671:
2668:
2667:
2645:
2642:
2641:
2621:
2617:
2600:
2597:
2596:
2580:
2577:
2576:
2554:
2551:
2550:
2534:
2531:
2530:
2513:
2509:
2507:
2504:
2503:
2484:
2480:
2471:
2467:
2462:
2454:
2450:
2449:
2438:
2433:
2431:
2429:
2426:
2425:
2400:
2396:
2387:
2383:
2378:
2370:
2366:
2365:
2354:
2349:
2347:
2336:
2332:
2330:
2313:
2310:
2309:
2290:
2287:
2286:
2261:
2258:
2257:
2241:
2238:
2237:
2221:
2218:
2217:
2210:
2171:
2166:
2156:
2140:
2136:
2130:
2125:
2118:
2114:
2096:
2080:
2076:
2075:
2073:
2061:
2057:
2049:
2046:
2045:
2038:
2017:
2014:
2013:
1996:
1992:
1969:
1966:
1965:
1940:
1937:
1936:
1905:
1902:
1901:
1876:
1873:
1872:
1849:
1845:
1839:
1834:
1828:
1824:
1822:
1810:
1806:
1798:
1795:
1794:
1783:
1775:
1750:
1747:
1746:
1729:
1713:
1662:rich get richer
1645:rich get richer
1630:
1552:Social networks
1543:
1514:
1511:
1510:
1506:
1477:
1452:
1450:Characteristics
1426:
1423:
1422:
1388:
1385:
1384:
1364:
1360:
1343:
1340:
1339:
1338:, expressed as
1323:
1320:
1319:
1316:
1308:self-similarity
1265:
1235:
1231:
1217:
1215:
1198:
1195:
1194:
1117:
1096:
1093:
1092:
1061:
1058:
1057:
1041:
1038:
1037:
1021:
1018:
1017:
899:
853:
849:
847:
844:
843:
840:scale parameter
811:
808:
807:
791:
788:
787:
764:
760:
737:
734:
733:
691:
629:
594:Boolean network
568:Maximum entropy
518:Barabási–Albert
435:
352:
341:
129:Controllability
94:Complex network
81:
68:
67:
66:
65:
64:
48:Network science
29:gamma functions
17:
12:
11:
5:
6830:
6820:
6819:
6814:
6812:Graph families
6800:
6799:
6790:
6735:
6733:on 2011-08-13.
6713:(10): 1060–8.
6698:
6691:
6653:(8): 5207–11.
6638:
6632:
6619:
6583:(2): 167–256.
6572:
6563:
6547:
6532:
6522:(4): 251–262.
6511:
6490:
6443:
6401:Rev. Mod. Phys
6396:
6390:
6377:
6333:(21): 4633–6.
6322:
6289:
6253:(25): 258702.
6242:
6235:
6183:
6139:
6133:
6116:
6053:
6011:Rev. Mod. Phys
6000:
5997:
5994:
5993:
5939:
5862:
5841:
5780:
5755:
5694:
5649:(18): 188701.
5633:
5606:(25): 258702.
5583:
5522:
5469:
5456:
5443:
5441:, 4629 (2000).
5427:
5418:
5405:
5392:
5348:
5321:(2): 101–113.
5299:
5257:
5199:
5180:
5129:
5059:
4997:
4944:
4915:(1): 317–333.
4899:
4838:
4774:
4747:(16): 168101.
4731:
4675:
4668:
4650:
4643:
4625:
4582:
4529:
4502:(3): 279–290.
4483:
4422:
4344:
4265:
4209:
4145:
4094:
4035:
3968:
3931:(4): 661–703.
3910:
3869:
3799:
3798:
3796:
3793:
3792:
3791:
3782:
3776:
3770:
3764:
3758:
3749:
3744:
3738:
3730:
3727:
3705:
3693:
3690:
3673:
3670:
3666:
3663:
3641:
3637:
3632:
3628:
3624:
3620:
3616:
3613:
3593:
3590:
3587:
3567:
3555:
3552:
3535:following the
3529:random network
3521:network theory
3516:
3513:
3504:
3501:
3495:
3492:
3480:Main article:
3477:
3474:
3473:
3472:
3461:
3453:
3449:
3443:
3439:
3435:
3432:
3429:
3422:
3418:
3412:
3408:
3404:
3398:
3395:
3390:
3386:
3382:
3377:
3373:
3369:
3366:
3343:
3338:
3334:
3330:
3325:
3321:
3317:
3314:
3292:
3274:
3271:
3247:
3244:
3231:
3220:
3219:
3208:
3201:
3197:
3193:
3188:
3185:
3182:
3179:
3169:
3166:
3162:
3158:
3155:
3152:
3149:
3146:
3123:
3120:
3115:
3111:
3088:
3084:
3078:
3074:
3070:
3067:
3062:
3058:
3054:
3051:
3040:asymptotically
3024:
3021:
3018:
3015:
2995:
2992:
2989:
2986:
2963:
2943:
2940:
2937:
2934:
2914:
2911:
2908:
2905:
2902:
2899:
2879:
2859:
2856:
2853:
2850:
2830:
2810:
2787:
2767:
2764:
2761:
2758:
2740:
2737:
2724:
2721:
2718:
2698:
2678:
2675:
2655:
2652:
2649:
2624:
2620:
2616:
2613:
2610:
2607:
2604:
2584:
2564:
2561:
2558:
2538:
2516:
2512:
2487:
2483:
2474:
2470:
2466:
2457:
2453:
2447:
2444:
2441:
2437:
2422:
2421:
2410:
2403:
2399:
2390:
2386:
2382:
2373:
2369:
2363:
2360:
2357:
2353:
2344:
2339:
2335:
2329:
2326:
2323:
2320:
2317:
2294:
2285:that the node
2274:
2271:
2268:
2265:
2245:
2225:
2209:
2206:
2194:
2193:
2182:
2174:
2169:
2165:
2159:
2155:
2151:
2148:
2143:
2139:
2133:
2129:
2121:
2117:
2111:
2108:
2105:
2102:
2099:
2095:
2091:
2088:
2083:
2079:
2072:
2069:
2064:
2060:
2056:
2053:
2037:
2034:
2021:
1999:
1995:
1991:
1988:
1985:
1982:
1979:
1976:
1973:
1953:
1950:
1947:
1944:
1924:
1921:
1918:
1915:
1912:
1909:
1889:
1886:
1883:
1880:
1852:
1848:
1842:
1838:
1831:
1827:
1821:
1818:
1813:
1809:
1805:
1802:
1782:
1779:
1774:
1771:
1754:
1728:
1725:
1712:
1709:
1629:
1626:
1601:
1600:
1597:
1591:
1585:
1582:
1579:World Wide Web
1565:Many kinds of
1563:
1542:
1539:
1518:
1505:
1502:
1486:complete graph
1476:
1473:
1451:
1448:
1430:
1407:
1404:
1401:
1398:
1395:
1392:
1370:
1367:
1363:
1359:
1356:
1353:
1350:
1347:
1327:
1315:
1312:
1263:
1257:
1256:
1245:
1238:
1234:
1229:
1226:
1223:
1220:
1214:
1211:
1208:
1205:
1202:
1188:
1187:
1176:
1173:
1170:
1167:
1164:
1161:
1158:
1155:
1152:
1149:
1146:
1143:
1138:
1135:
1132:
1129:
1126:
1123:
1120:
1116:
1112:
1109:
1106:
1103:
1100:
1077:
1074:
1071:
1068:
1065:
1045:
1025:
898:
895:
859:
856:
852:
827:
824:
821:
818:
815:
795:
784:
783:
770:
767:
763:
756:
750:
747:
744:
741:
693:
692:
690:
689:
682:
675:
667:
664:
663:
662:
661:
656:
650:
649:
644:
639:
631:
630:
628:
627:
624:
620:
617:
616:
613:
612:
611:
610:
601:
596:
588:
587:
583:
582:
581:
580:
575:
570:
565:
560:
555:
550:
545:
540:
535:
533:Watts–Strogatz
530:
525:
520:
515:
510:
502:
501:
493:
492:
488:
487:
486:
485:
480:
475:
470:
465:
460:
455:
450:
445:
437:
436:
434:
433:
428:
422:
419:
418:
415:
414:
413:
412:
407:
402:
397:
392:
387:
382:
377:
369:
368:
364:
363:
362:
361:
354:Incidence list
350:
343:Adjacency list
339:
334:
329:
324:
319:
314:
312:Data structure
309:
304:
299:
294:
286:
285:
277:
276:
270:
269:
268:
267:
262:
257:
252:
247:
242:
240:Interdependent
237:
232:
227:
222:
217:
212:
207:
199:
198:
194:
193:
192:
191:
186:
184:Network effect
181:
179:Balance theory
176:
171:
166:
161:
156:
151:
146:
141:
139:Social capital
136:
131:
126:
121:
116:
111:
106:
101:
96:
91:
83:
82:
80:
79:
73:
70:
69:
58:
57:
56:
55:
54:
51:
50:
44:
43:
15:
9:
6:
4:
3:
2:
6829:
6818:
6815:
6813:
6810:
6809:
6807:
6796:
6791:
6787:
6783:
6779:
6775:
6771:
6767:
6763:
6759:
6754:
6749:
6746:(3): 037103.
6745:
6741:
6736:
6732:
6728:
6724:
6720:
6716:
6712:
6708:
6704:
6699:
6696:
6692:
6688:
6684:
6679:
6674:
6669:
6664:
6660:
6656:
6652:
6648:
6644:
6639:
6635:
6633:0-521-82698-5
6629:
6625:
6620:
6616:
6612:
6608:
6604:
6600:
6596:
6591:
6586:
6582:
6578:
6573:
6569:
6564:
6560:
6553:
6548:
6543:
6538:
6533:
6529:
6525:
6521:
6517:
6512:
6505:
6504:
6499:
6495:
6491:
6487:
6483:
6479:
6475:
6471:
6467:
6462:
6457:
6453:
6449:
6444:
6440:
6436:
6432:
6428:
6424:
6420:
6415:
6410:
6406:
6402:
6397:
6393:
6391:0-19-851590-1
6387:
6383:
6378:
6374:
6370:
6366:
6362:
6358:
6354:
6350:
6346:
6341:
6336:
6332:
6328:
6323:
6319:
6315:
6311:
6307:
6303:
6299:
6295:
6290:
6286:
6282:
6278:
6274:
6270:
6266:
6261:
6256:
6252:
6248:
6243:
6240:
6236:
6232:
6228:
6224:
6220:
6216:
6212:
6208:
6204:
6201:(1): 016113.
6200:
6196:
6189:
6184:
6180:
6176:
6172:
6168:
6164:
6160:
6156:
6152:
6145:
6140:
6136:
6134:0-452-28439-2
6130:
6125:
6124:
6117:
6113:
6109:
6104:
6099:
6094:
6089:
6085:
6081:
6076:
6071:
6067:
6063:
6059:
6054:
6050:
6046:
6042:
6038:
6034:
6030:
6025:
6020:
6016:
6012:
6008:
6003:
6002:
5989:
5985:
5980:
5975:
5970:
5965:
5961:
5957:
5953:
5946:
5944:
5935:
5931:
5926:
5921:
5917:
5913:
5908:
5903:
5899:
5895:
5890:
5885:
5881:
5877:
5873:
5866:
5857:
5852:
5845:
5837:
5833:
5829:
5825:
5821:
5817:
5813:
5809:
5804:
5799:
5796:(6): 065101.
5795:
5791:
5784:
5778:
5771:
5766:
5759:
5751:
5747:
5743:
5739:
5735:
5731:
5727:
5723:
5718:
5713:
5710:(3): 036106.
5709:
5705:
5698:
5690:
5686:
5682:
5678:
5674:
5670:
5666:
5662:
5657:
5652:
5648:
5644:
5637:
5629:
5625:
5621:
5617:
5613:
5609:
5605:
5601:
5594:
5587:
5579:
5575:
5571:
5567:
5563:
5559:
5555:
5551:
5546:
5541:
5538:(2): 026112.
5537:
5533:
5526:
5518:
5514:
5510:
5506:
5502:
5498:
5493:
5488:
5484:
5480:
5473:
5466:
5460:
5453:
5447:
5440:
5434:
5432:
5422:
5416:, 5234(2000).
5415:
5409:
5403:, 509 (1999).
5402:
5396:
5388:
5384:
5380:
5376:
5372:
5368:
5364:
5357:
5355:
5353:
5344:
5340:
5336:
5332:
5328:
5324:
5320:
5316:
5312:
5306:
5304:
5285:
5281:
5277:
5270:
5269:
5261:
5253:
5249:
5245:
5241:
5237:
5233:
5228:
5223:
5219:
5215:
5208:
5206:
5204:
5195:
5191:
5184:
5175:
5170:
5166:
5162:
5157:
5152:
5149:(9): 093045.
5148:
5144:
5140:
5133:
5125:
5121:
5116:
5111:
5106:
5101:
5097:
5093:
5088:
5083:
5079:
5075:
5071:
5063:
5055:
5051:
5047:
5043:
5039:
5035:
5031:
5027:
5022:
5017:
5013:
5009:
5001:
4993:
4989:
4985:
4981:
4977:
4973:
4968:
4963:
4959:
4955:
4948:
4939:
4934:
4930:
4926:
4922:
4918:
4914:
4910:
4903:
4895:
4891:
4887:
4883:
4879:
4875:
4871:
4867:
4862:
4857:
4854:(6): 066112.
4853:
4849:
4842:
4834:
4830:
4826:
4822:
4818:
4814:
4810:
4806:
4801:
4796:
4793:(4): 046107.
4792:
4788:
4781:
4779:
4770:
4766:
4762:
4758:
4754:
4750:
4746:
4742:
4735:
4727:
4723:
4719:
4715:
4711:
4707:
4702:
4697:
4693:
4689:
4682:
4680:
4671:
4665:
4661:
4654:
4646:
4640:
4636:
4629:
4611:
4607:
4603:
4596:
4592:
4586:
4578:
4574:
4570:
4566:
4562:
4558:
4553:
4548:
4544:
4540:
4533:
4525:
4521:
4517:
4513:
4509:
4505:
4501:
4497:
4493:
4487:
4479:
4475:
4471:
4467:
4463:
4459:
4455:
4451:
4446:
4441:
4437:
4433:
4426:
4418:
4414:
4409:
4404:
4399:
4394:
4390:
4386:
4381:
4376:
4372:
4368:
4364:
4358:
4354:
4348:
4340:
4336:
4332:
4328:
4324:
4320:
4316:
4312:
4308:
4304:
4299:
4294:
4290:
4286:
4285:
4280:
4274:
4272:
4270:
4260:
4255:
4251:
4247:
4242:
4237:
4234:(2): 023352.
4233:
4229:
4225:
4218:
4216:
4214:
4205:
4201:
4197:
4193:
4189:
4185:
4181:
4177:
4172:
4167:
4164:(2): 026114.
4163:
4159:
4152:
4150:
4141:
4137:
4133:
4129:
4125:
4121:
4117:
4113:
4109:
4105:
4098:
4090:
4086:
4081:
4076:
4071:
4066:
4062:
4058:
4054:
4050:
4046:
4039:
4031:
4027:
4022:
4017:
4013:
4009:
4005:
4001:
3996:
3991:
3987:
3983:
3979:
3972:
3964:
3960:
3956:
3952:
3948:
3944:
3939:
3934:
3930:
3926:
3919:
3917:
3915:
3905:
3900:
3896:
3892:
3888:
3884:
3880:
3873:
3865:
3861:
3856:
3851:
3846:
3841:
3837:
3833:
3828:
3823:
3819:
3815:
3811:
3804:
3800:
3786:
3783:
3780:
3777:
3774:
3771:
3768:
3765:
3762:
3759:
3753:
3750:
3748:
3745:
3742:
3739:
3736:
3733:
3732:
3726:
3724:
3719:
3703:
3689:
3687:
3686:almost surely
3671:
3668:
3664:
3661:
3639:
3635:
3630:
3626:
3622:
3618:
3614:
3611:
3591:
3588:
3585:
3565:
3551:
3549:
3545:
3541:
3538:
3534:
3530:
3526:
3522:
3512:
3509:
3500:
3491:
3489:
3483:
3459:
3451:
3447:
3441:
3437:
3433:
3430:
3427:
3420:
3416:
3410:
3406:
3402:
3396:
3388:
3384:
3380:
3375:
3371:
3364:
3357:
3356:
3355:
3336:
3332:
3328:
3323:
3319:
3312:
3304:
3300:
3295:
3291:
3288:
3284:
3280:
3273:Fitness model
3270:
3268:
3264:
3259:
3254:
3252:
3243:
3206:
3195:
3191:
3186:
3183:
3180:
3177:
3167:
3164:
3160:
3156:
3150:
3144:
3137:
3136:
3135:
3113:
3109:
3086:
3082:
3072:
3068:
3060:
3056:
3042:linear, i.e.
3041:
3035:
3019:
2990:
2975:
2961:
2954:is linear in
2938:
2912:
2909:
2903:
2877:
2854:
2828:
2808:
2801:
2785:
2762:
2746:
2736:
2722:
2719:
2716:
2696:
2673:
2653:
2650:
2647:
2640:However, for
2638:
2622:
2618:
2614:
2608:
2582:
2562:
2559:
2556:
2536:
2514:
2510:
2485:
2481:
2472:
2468:
2464:
2455:
2451:
2445:
2442:
2439:
2435:
2408:
2401:
2397:
2388:
2384:
2380:
2371:
2367:
2361:
2358:
2355:
2351:
2342:
2337:
2333:
2327:
2321:
2308:
2307:
2306:
2292:
2269:
2243:
2223:
2215:
2205:
2201:
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144:Link analysis
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6739:
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5467:, 425(1955).
5464:
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5454:, 273(2001).
5451:
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4605:
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4532:
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4492:Bollobás, B.
4486:
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508:Random graph
356: /
345: /
327:Neighborhood
169:Transitivity
149:Optimization
108:
6797:. In Press.
6577:SIAM Review
6157:(5): 50–9.
5962:(6): 1–28.
5882:(1): 9752.
4938:10419/60649
4055:(1): 1016.
3988:(1): 1017.
3925:SIAM Review
2870:depends on
2424:The factor
1534:Mashaghi A.
1286:with small
963:Réka Albert
939:Réka Albert
930:Réka Albert
599:agent based
513:Erdős–Rényi
154:Reciprocity
119:Percolation
104:Small-world
6806:Categories
5969:1908.00310
5856:1804.02513
5293:2016-02-10
5227:1704.08597
4701:2310.08110
4694:: 114173.
4619:2011-02-03
4241:2001.09118
3995:1801.03400
3795:References
2743:See also:
1475:Clustering
991:traceroute
879:fat-tailed
709:follows a
626:Categories
483:Efficiency
478:Modularity
458:Clustering
443:Centrality
431:Algorithms
255:Dependency
230:Biological
109:Scale-free
6707:BioEssays
6615:221278130
6498:Rényi, A.
6494:Erdős, P.
6414:0705.0010
6373:118876189
6298:Physica A
5988:1556-4681
5916:2045-2322
5889:1411.6871
5770:0905.3704
5717:1006.5169
5492:1411.3444
5485:: 23–30.
5479:Physica A
5252:119320331
5156:1008.4994
5087:1208.0101
5021:1008.2015
4726:263909425
4478:118876189
4171:0804.1366
4140:206538568
3938:0706.1062
3704:γ
3662:γ
3636:
3631:∗
3623:×
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3586:γ
3508:UPA model
3434:δ
3403:δ
3258:iterative
3230:∞
3200:∞
3192:μ
3178:γ
3168:γ
3165:−
3157:∼
3122:∞
3119:→
3077:∞
3069:∼
3050:Π
3014:Π
2985:Π
2933:Π
2898:Π
2849:Π
2757:Π
2677:%
2615:∝
2603:Π
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2352:∑
2316:Π
2264:Π
2154:∑
2128:∑
2094:∑
2052:Π
1998:α
1972:Π
1943:Π
1920:≠
1908:Π
1879:Π
1837:∑
1801:Π
1753:Π
1590:networks.
1403:ϵ
1394:→
1369:γ
1366:−
1358:∝
1163:
1157:⋅
1145:
1134:∈
1115:∑
1088:. Define
1067:
915:power law
858:γ
855:−
820:γ
794:γ
769:γ
766:−
755:∼
711:power law
375:Bipartite
297:Component
215:Transport
164:Homophily
124:Evolution
99:Contagion
6817:Networks
6795:Sci. Rep
6786:31653489
6778:15524675
6727:16163729
6687:16578867
6500:(1960).
6365:11082614
6285:12484927
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4030:30833554
3864:17456605
3773:Webgraph
3729:See also
3665:′
2821:of node
2012:, where
1773:Examples
1727:Features
1658:BA Model
1575:webgraph
1573:and the
1571:internet
1541:Examples
1498:security
1314:Overview
987:Internet
885:and the
642:Software
604:Epidemic
586:Dynamics
500:Topology
473:Distance
410:Weighted
385:Directed
380:Complete
284:Features
245:Semantic
40:a series
38:Part of
6758:Bibcode
6697:, 2004.
6655:Bibcode
6595:Bibcode
6466:Bibcode
6439:3174463
6419:Bibcode
6345:Bibcode
6306:Bibcode
6265:Bibcode
6231:1001176
6203:Bibcode
6159:Bibcode
6080:Bibcode
6029:Bibcode
5925:4426729
5894:Bibcode
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5750:6451908
5722:Bibcode
5661:Bibcode
5608:Bibcode
5550:Bibcode
5497:Bibcode
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5232:Bibcode
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5115:3465392
5092:Bibcode
5054:4405620
5026:Bibcode
4992:6000627
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4866:Bibcode
4805:Bibcode
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4706:Bibcode
4557:Bibcode
4524:1486779
4516:1824277
4450:Bibcode
4385:Bibcode
4323:2091634
4303:Bibcode
4284:Science
4246:Bibcode
4176:Bibcode
4112:Bibcode
4104:Science
4080:6399274
4057:Bibcode
4021:6399239
4000:Bibcode
3963:9155618
3943:Bibcode
3891:Bibcode
3855:1863470
3832:Bibcode
3531:with a
3287:fitness
2212:In the
1697:in-fine
1577:of the
999:layer 2
995:layer 3
932:at the
897:History
703:network
426:Metrics
395:Labeled
265:on-Chip
250:Spatial
159:Closure
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1259:where
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971:Mendes
786:where
758:
752:
705:whose
637:Topics
491:Models
448:Degree
405:Random
358:matrix
347:matrix
337:Vertex
292:Clique
274:Graphs
220:Social
77:Theory
6782:S2CID
6748:arXiv
6611:S2CID
6585:arXiv
6555:(PDF)
6537:arXiv
6507:(PDF)
6482:S2CID
6456:arXiv
6435:S2CID
6409:arXiv
6369:S2CID
6335:arXiv
6255:arXiv
6227:S2CID
6191:(PDF)
6147:(PDF)
6103:17168
6070:arXiv
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6045:S2CID
6019:arXiv
5964:arXiv
5884:arXiv
5851:arXiv
5832:S2CID
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5765:arXiv
5746:S2CID
5712:arXiv
5685:S2CID
5651:arXiv
5596:(PDF)
5574:S2CID
5540:arXiv
5513:S2CID
5487:arXiv
5339:S2CID
5287:(PDF)
5272:(PDF)
5248:S2CID
5222:arXiv
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5151:arXiv
5082:arXiv
5050:S2CID
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4988:S2CID
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4829:S2CID
4795:arXiv
4722:S2CID
4696:arXiv
4613:(PDF)
4598:(PDF)
4573:S2CID
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4520:S2CID
4474:S2CID
4440:arXiv
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4375:arXiv
4335:S2CID
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4200:S2CID
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4136:S2CID
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3959:S2CID
3933:arXiv
3822:arXiv
3527:is a
1736:nodes
1634:Erdős
1550:Some
1298:with
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842:) of
701:is a
623:Lists
453:Motif
400:Multi
390:Hyper
367:Types
307:Cycle
89:Graph
6774:PMID
6723:PMID
6683:PMID
6647:PNAS
6628:ISBN
6386:ISBN
6361:PMID
6281:PMID
6219:PMID
6175:PMID
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6062:PNAS
5984:ISSN
5930:PMID
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