Latest in physics.soc-ph

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Mean field model of a game for powerFeb 08 2018Our aim is to model a game for power as a dynamical process, where an excess of power possessed by a player allows him to gain even more power. Such a positive feedback is often termed as the Matthew effect. Analytical and numerical methods allow to identify ... More
Synergistic cumulative contagion in epidemic spreadingFeb 08 2018Most epidemic spreading models assume memoryless agents and independent transmissions along different infection channels. Nevertheless, many real-life cases are manifestly time-sensitive and show strong correlations. Although some recent research efforts ... More
Immediate Causality Network of Stock MarketsFeb 08 2018A financial system contains many elements networked by their relationships. Extensive works show that topological structure of the network stores rich information on evolutionary behaviors of the system such as early warning signals of collapses and/or ... More
Social Media Data Analysis and Feedback for Advanced Disaster Risk ManagementFeb 07 2018Social media are more than just a one-way communication channel. Data can be collected, analyzed and contextualized to support disaster risk management. However, disaster management agencies typically use such added-value information to support only their ... More
On the role of multiple scales in metapopulations of public good producersFeb 07 2018Multiple scales in metapopulations can give rise to paradoxical behaviour: in a conceptual model for a public goods game, the species associated with a fitness cost due to the public good production can be stabilised in the well-mixed limit due to the ... More
Risk of coinfection outbreaks in temporal networks: a case study of a hospital contact networkFeb 07 2018We study the spreading of cooperative infections in an empirical temporal network of contacts between people, including health care workers and patients, in a hospital. The system exhibits a phase transition leading to one or several endemic branches, ... More
The dynamic framework of decision-makingFeb 07 2018This work explores dynamics existing in interactions between players. The dynamic system of games is a new attitude to modeling in which an event is modeled using several games. The model allows us to analyze the interplay capabilities and the feasibility ... More
Dynamic regulation of resource transport induces criticality in multilayer networks of excitable unitsFeb 06 2018Past work has shown that the function of a network of excitable units can be enhanced if the network is in the `critical regime', where excitations are, one average, neither damped nor amplified. In this Letter, we show that resource transport dynamics ... More
Entropy-based approach to missing-links predictionFeb 06 2018Link-prediction is an active research field within network theory, aiming at uncovering missing connections or predicting the emergence of future relationships from the observed network structure. This paper represents our contribution to the stream of ... More
Clout, Activists and Budget: The Road to PresidencyFeb 06 2018Political campaigns involve, in the simplest case, two competing campaign groups which try to obtain a majority of votes. We propose a novel mathematical framework to study political campaign dynamics on social networks whose constituents are either political ... More
Divergent Perspectives on Expert Disagreement: Preliminary Evidence from Climate Science, Climate Policy, Astrophysics, and Public OpinionFeb 06 2018We report the results of an exploratory study that examines the judgments of climate scientists, climate policy experts, astrophysicists, and non-experts (N = 3,367) about the factors that contribute to the creation and persistence of disagreement within ... More
Dense Power-law Networks and Simplicial ComplexesFeb 05 2018There is increasing evidence that dense networks occur in on-line social networks, recommendation networks and in the brain. In addition to being dense, these networks are often also scale-free, i.e. their degree distributions follow $P(k)\propto k^{-\gamma}$ ... More
Superdiffusion and time-dependent long-range interactions on networksFeb 04 2018This work addresses the motion of a random walker on a discrete structure with the presence of long-range interactions, the strength of which can change in time. No restriction is made on the nature of the substrate, which may range from ordered lattice ... More
The Anatomy of Leadership in Collective BehaviourFeb 04 2018Understanding the mechanics behind the coordinated movement of mobile animal groups provides key insights into their biology and ecology while also yielding algorithms for bio-inspired technologies and autonomous systems. It is becoming increasingly clear ... More
Unveiling Relationships Between Crime and Property in England and Wales Via Density Scale-Adjusted Metrics and Network ToolsFeb 03 2018Scale-adjusted metrics (SAMs) are a significant achievement of the urban scaling hypothesis. SAMs remove the inherent biases of per capita measures computed in the absence of isometric allometries. However, this approach is limited to urban areas, while ... More
Note: Distance-Based Network PartitioningFeb 01 2018A new method for identifying soft communities in networks is proposed. Reference nodes, either selected using a priori information about the network or according to relevant node measurements, are obtained. Distance vectors between each network node and ... More
Excess-tuberculosis-mortality in young women: high accuracy explorationFeb 01 2018In a general way at all ages and for almost all diseases, male death rates are higher than female death rates. Here we report a case in which the opposite holds, namely for tuberculosis (TB) mortality between the ages of 5 and 25, female death rates are ... More
Mapping road network communities for guiding disease surveillance and control strategiesFeb 01 2018Human mobility is increasing in its volume, speed and reach, leading to the movement and introduction of pathogens through infected travelers. An understanding of how areas are connected, the strength of these connections and how this translates into ... More
Complex Network Geometry and Frustrated SynchronizationFeb 01 2018The dynamics of networks of neuronal cultures has been recently shown to be strongly dependent on the network geometry and in particular on their dimensionality. However, this phenomenon has been so far mostly unexplored from the theoretical point of ... More
Performance Dynamics and Success in Online GamesJan 29 2018Online data provide a way to monitor how users behave in social systems like social networks and online games, and understand which features turn an ordinary individual into a successful one. Here, we propose to study individual performance and success ... More
The Journal Impact Factor: A brief history, critique, and discussion of adverse effectsJan 26 2018The Journal Impact Factor (JIF) is, by far, the most discussed bibliometric indicator. Since its introduction over 40 years ago, it has had enormous effects on the scientific ecosystem: transforming the publishing industry, shaping hiring practices and ... More
The Interhospital Transfer Network for Very Low Birth Weight Infants in the United StatesJan 26 2018Very low birth weight (VLBW) infants require specialized care in neonatal intensive care units. In the United States (U.S.), such infants frequently are transferred between hospitals. Although these neonatal transfer networks are important both economically ... More
Social Influence with Recurrent Mobility with multiple optionsJan 26 2018In this paper, we discuss the possible generalizations of the Social Influence with Recurrent Mobility (SIRM) model developed in Phys. Rev. Lett. 112, 158701 (2014). Although the SIRM model worked approximately satisfying when US election was modelled, ... More
A method for assessing the success and failure of community-level interventions in the presence of network diffusion, social reinforcement, and related social effectsJan 25 2018Prevention and intervention work done within community settings often face unique analytic challenges for rigorous evaluations. Since community prevention work (often geographically isolated) cannot be controlled in the same way other prevention programs ... More
Floating Forests: Quantitative Validation of Citizen Science Data Generated From Consensus ClassificationsJan 25 2018Large-scale research endeavors can be hindered by logistical constraints limiting the amount of available data. For example, global ecological questions require a global dataset, and traditional sampling protocols are often too inefficient for a small ... More
Is the coexistence of Catalan and Spanish possible in Catalonia?Jan 24 2018We study the stability of two coexisting languages (Catalan and Spanish) in Catalonia (North-Eastern Spain), a key European region in political and economic terms. Our analysis relies on recent, abundant empirical data that is studied within an analytic ... More
Correlations and dynamics of consumption patterns in social-economic networksJan 23 2018We analyse a coupled dataset collecting the mobile phone communications and bank transactions history of a large number of individuals living in a Latin American country. After mapping the social structure and introducing indicators of socioeconomic status, ... More
A Tutorial on Modeling and Analysis of Dynamic Social Networks. Part IIJan 20 2018Recent years have witnessed a significant trend towards filling the gap between Social Network Analysis (SNA) and control theory. This trend was enabled by the introduction of new mathematical models describing dynamics of social groups, the development ... More
Revealing In-Block Nestedness: detection and benchmarkingJan 17 2018As new instances of nested organization --beyond ecological networks-- are discovered, scholars are debating around the co-existence of two apparently incompatible macroscale architectures: nestedness and modularity. The discussion is far from being solved, ... More
Synergies of sector coupling and transmission extension in a cost-optimised, highly renewable European energy systemJan 16 2018There are two competing concepts for the integration of high shares of renewable energy: the coupling of electricity to other energy sectors, such as transport and heating, and the reinforcement of transmission networks. In this paper both sector coupling ... More
Entropy Measures of Human Communication DynamicsJan 14 2018Human communication is commonly represented as a temporal social network, and evaluated in terms of its uniqueness. We propose a set of new entropy-based measures for human communication dynamics represented within the temporal social network as event ... More
Coexistence of several currencies in presence of increasing returns to adoptionJan 12 2018We present a simplistic model of the competition between different currencies. Each individual is free to choose the currency that minimizes his transaction costs, which arise whenever his exchanging relations have chosen a different currency. We show ... More
Phase transitions in social networks inspired by the Schelling modelJan 11 2018A generalized Schelling social segregation model is applied for the description of evolving social networks in which the number of connections of each agent (individual) remains approximately constant in time, though may be different for different agents. ... More
Priority Attachment: a Universal Mechanism for Generating NetworksJan 10 2018Jan 18 2018We claim that networks are created according to the priority attachment mechanism and we show a simple model which uses the priority attachment to generate both synthetic and close to empirical networks. Priority attachment is a mechanism which generalizes ... More
Scale-free networks are rareJan 09 2018A central claim in modern network science is that real-world networks are typically "scale free," meaning that the fraction of nodes with degree $k$ follows a power law, decaying like $k^{-\alpha}$, often with $2 < \alpha < 3$. However, empirical evidence ... More
The dynamical structure of political corruption networksJan 05 2018Corruptive behaviour in politics limits economic growth, embezzles public funds, and promotes socio-economic inequality in modern democracies. We analyse well-documented political corruption scandals in Brazil over the past 27 years, focusing on the dynamical ... More
Strong consensus on US Supreme Court spans a centuryDec 27 2017The US Supreme Court throughout the 20th century has been characterized as being divided between liberal and conservative wings, suggesting that justices with similar ideologies would have voted similarly had they overlapped in tenure. What if they had? ... More
Detecting Anomalies in Sequential Data with Higher-order NetworksDec 27 2017A major branch of anomaly detection methods rely on dynamic networks: raw sequential data is first converted to a series of networks, then critical change points are identified in the evolving network structure. However, existing approaches use the first-order ... More
Evolutionary dynamics of cooperation in neutral populationsDec 06 2017Cooperation is a difficult proposition in the face of Darwinian selection. Those that defect have an evolutionary advantage over cooperators who should therefore die out. However, spatial structure enables cooperators to survive through the formation ... More
Inferring propagation paths for sparsely observed perturbations on complex networksDec 04 2017In a complex system, perturbations propagate by following paths on the network of interactions among the system's units. In contrast to what happens with the spreading of epidemics, observations of general perturbations are often very sparse in time (there ... More
Quantifying layer similarity in multiplex networks: a systematic studyNov 30 2017Computing layer similarities is an important way of characterizing multiplex networks because various static properties and dynamic processes depend on the relationships between layers. We provide a taxonomy and experimental evaluation of approaches to ... More
Analysis of group evolution prediction in complex networksNov 06 2017In a world, in which the acceptance and the social community membership is highly desired, the ability to predict social group evolution appears to be a fascinating research task, yet very complex. Therefore, the problem decomposition has been performed, ... More
Beautiful and damned. Combined effect of content quality and social ties on user engagementNov 01 2017User participation in online communities is driven by the intertwinement of the social network structure with the crowd-generated content that flows along its links. These aspects are rarely explored jointly and at scale. By looking at how users generate ... More
Global Rank EstimationOct 31 2017In real world complex networks, the importance of a node depends on two important parameters: 1. characteristics of the node, and 2. the context of the given application. The current literature contains several centrality measures that have been defined ... More
Simulating the deep decarbonisation of residential heating for limiting global warming to 1.5COct 30 2017We take a simulation-based approach for modelling ten scenarios, aiming at near-zero global CO2 emissions by 2050 in the residential heating sector, using different combinations of policy instruments. Their effectiveness highly depends on behavioural ... More
Early identification of important patents through network centralityOct 25 2017One of the most challenging problems in technological forecasting is to identify as early as possible those technologies that have the potential to lead to radical changes in our society. In this paper, we use the US patent citation network (1926-2010) ... More
Individuals, Institutions, and Innovation in the Debates of the French RevolutionOct 18 2017The French Revolution brought principles of "liberty, equality, and brotherhood" to bear on the day-to-day challenges of governing what was then the largest country in Europe. Its experiments provided a model for future revolutions and democracies across ... More
Second-order freeriding on antisocial punishment restores the effectiveness of prosocial punishmentOct 12 2017Economic experiments have shown that punishment can increase public goods game contributions over time. However, the effectiveness of punishment is challenged by second-order freeriding and antisocial punishment. The latter implies that non-cooperators ... More
Core-biased random walks in complex networksSep 22 2017A simple strategy to explore a network is to use a random-walk where the walker jumps from one node to an adjacent node at random. It is known that biasing the random jump, the walker can explore every walk of the same length with equal probability, this ... More
Scaling of transmission capacities in coarse-grained renewable electricity networksSep 21 2017Network models of large-scale electricity systems feature only a limited spatial resolution, either due to lack of data or in order to reduce the complexity of the problem with respect to numerical calculations. In such cases, both the network topology, ... More
Seeds Buffering for Information Spreading ProcessesSep 14 2017Seeding strategies for influence maximization in social networks have been studied for more than a decade. They have mainly relied on the activation of all resources (seeds) simultaneously in the beginning; yet, it has been shown that sequential seeding ... More
Estimating the outcome of spreading processes on networks with incomplete information: a mesoscale approachSep 06 2017Recent advances in data collection have facilitated the access to time-resolved human proximity data that can conveniently be represented as temporal networks of contacts between individuals. While this type of data is fundamental to investigate how information ... More
Peer relations with mobile phone data: Best friends and family formationAug 25 2017Earlier attempts to investigate the changes of the role of friendship in different life stages have failed due to lack of data. We close this gap by using a large data set of mobile phone calls from a European country in 2007, to study how the people's ... More
Network of families in a contemporary population: regional and cultural assortativityAug 21 2017Aug 22 2017Using a large dataset with individual-level demographic information of 60,000 families in contemporary Finland, we analyse the variation and cultural assortativity in a network of families. Families are considered as vertices and unions between males ... More
Migration patterns across the life course of families: Gender differences and proximity with parents and siblings in FinlandAug 08 2017Family members' life course tendencies to remain geographically close to each other or to migrate due to education or job opportunities have been studied relatively little. Here we investigate migration patterns of parents and their children between 19 ... More
Phase Transition in the Maximal Influence Problem: When Do We Need Optimization?Aug 07 2017Considerable efforts were made in recent years in devising optimization algorithms for influence maximization in networks. Here we ask: "When do we need optimization?" and apply insights from statistical mechanics, and direct simulations, to characterize ... More
Relaxation time of the global order parameter on multiplex networks: the role of interlayer coupling in Kuramoto oscillatorsAug 06 2017This work considers the timescales associated with the global order parameter and the interlayer synchronization of coupled Kuramoto oscillators on multiplexes. For the two-layer multiplexes with initially high degree of synchronization in each layer, ... More
Zealots in the mean-field noisy voter modelJul 13 2017Jan 12 2018The influence of zealots on the noisy voter model is studied theoretically and numerically at the mean-field level. The noisy voter model is a modification of the voter model that includes a second mechanism for transitions between states: apart from ... More
Why we live in hierarchies: a quantitative treatiseJul 06 2017This book is concerned with the various aspects of hierarchical collective behaviour which is manifested by most complex systems in nature. From the many of the possible topics, we plan to present a selection of those that we think are useful from the ... More
Investigating the potential of social network data for transport demand modelsJun 30 2017Location-based social network data offers the promise of collecting the data from a large base of users over a longer span of time at negligible cost. While several studies have applied social network data to activity and mobility analysis, a comparison ... More
Election forensic analysis of the Turkish Constitutional Referendum 2017Jun 29 2017Jul 03 2017With a majority of 'Yes' votes in the Constitutional Referendum of 2017, Turkey continues its transition from democracy to autocracy. By the will of the Turkish people, this referendum transferred practically all executive power to president Erdogan. ... More
Multilink Communities of Multiplex NetworksJun 27 2017Multiplex networks describe a large number of complex social, biological and transportation networks where a set of nodes is connected by links of different nature and connotation. Here we uncover the rich community structure of multiplex networks by ... More
Effect of Intellectual Property Policy on the Speed of Technological AdvancementJun 14 2017In this paper, the agent-based modeling is employed to model the effect of intellectual property policy at the speed of technological advancement. Every agent has inborn preferences towards investing their capital into independent technological development, ... More
A Faster Method to Estimate Closeness Centrality RankingJun 07 2017Closeness centrality is one way of measuring how central a node is in the given network. The closeness centrality measure assigns a centrality value to each node based on its accessibility to the whole network. In real life applications, we are mainly ... More
Alliance formation with exclusion in the spatial public goods gameMay 24 2017Detecting defection and alarming partners about the possible danger could be essential to avoid being exploited. This act, however, may require a huge individual effort from those who take this job, hence such a strategy seems to be unfavorable. But structured ... More
Statistical physics of human cooperationMay 19 2017Extensive cooperation among unrelated individuals is unique to humans, who often sacrifice personal benefits for the common good and work together to achieve what they are unable to execute alone. The evolutionary success of our species is indeed due, ... More
Competitions between prosocial exclusions and punishments in finite populationsMay 07 2017Prosocial punishment has been proved to be a powerful mean to promote cooperation. Recent studies have found that social exclusion, which indeed can be regarded as a kind of punishment, can also support cooperation. However, if prosocial punishment and ... More
Ranking in evolving complex networksApr 26 2017Complex networks have emerged as a simple yet powerful framework to represent and analyze a wide range of complex systems. The problem of ranking the nodes and the edges in complex networks is critical for a broad range of real-world problems because ... More
Two-walks degree assortativity in graphs and networksApr 12 2017Degree ssortativity is the tendency for nodes of high degree (resp.low degree) in a graph to be connected to high degree nodes (resp. to low degree ones). It is sually quantified by the Pearson correlation coefficient of the degree-degree correlation. ... More
Quantifying and suppressing ranking bias in a large citation networkMar 23 2017It is widely recognized that citation counts for papers from different fields cannot be directly compared because different scientific fields adopt different citation practices. Citation counts are also strongly biased by paper age since older papers ... More
Randomizing growing networks with a time-respecting null modelMar 22 2017Nov 16 2017Complex networks are often used to represent systems that are not static but grow with time: people make new friendships, new papers are published and refer to the existing ones, and so forth. To assess the statistical significance of measurements made ... More
Role-separating ordering in social dilemmas controlled by topological frustrationFeb 27 2017"Three is a crowd" is an old proverb that applies as much to social interactions, as it does to frustrated configurations in statistical physics models. Accordingly, social relations within a triangle deserve special attention. With this motivation, we ... More
Increasing Peer Pressure on any Connected Graph Leads to ConsensusFeb 25 2017Jun 18 2017In this paper, we study a model of opinion dynamics in a social network in the presence increasing interpersonal influence, i.e., increasing peer pressure. Each agent in the social network has a distinct social stress function given by a weighted sum ... More
Collective phenomena in crowds - where pedestrian dynamics need social psychologyFeb 22 2017This article is on collective phenomena in pedestrian dynamics during the assembling and dispersal phases of gatherings. To date pedestrian dynamics have been primarily studied in the natural and engineering sciences. Pedestrians are analyzed and modeled ... More
Routes Obey Hierarchy in Complex NetworksFeb 20 2017Various hypotheses exist about the paths used for communication between the nodes of complex networks. Most studies simply suppose that communication goes via shortest paths, while others have more explicit assumptions about how routing (alternatively ... More
Non-negative Tensor Factorization for Human Behavioral Pattern Mining in Online GamesFeb 19 2017Multiplayer online battle arena has become a popular game genre. It also received increasing attention from our research community because they provide a wealth of information about human interactions and behaviors. A major problem is extracting meaningful ... More
Geometric explanation of the rich-club phenomenon in complex networksFeb 08 2017Dec 04 2017The rich club organization (the presence of highly connected hub core in a network) influences many structural and functional characteristics of networks including topology, the efficiency of paths and distribution of load. Despite its major role, the ... More
A null model for Dunbar's circlesJan 23 2017Apr 19 2017An individual's social group may be represented by their ego-network, formed by the links between the individual and their acquaintances. Ego-networks present an internal structure of increasingly large nested layers of decreasing relationship intensity, ... More
The Internet as Quantitative Social Science Platform: Insights from a Trillion ObservationsJan 19 2017With the large-scale penetration of the internet, for the first time, humanity has become linked by a single, open, communications platform. Harnessing this fact, we report insights arising from a unified internet activity and location dataset of an unparalleled ... More
Verifying Heaps' law using Google Books Ngram dataDec 29 2016This article is devoted to the verification of the empirical Heaps law in European languages using Google Books Ngram corpus data. The connection between word distribution frequency and expected dependence of individual word number on text size is analysed ... More
Tensor clustering with algebraic constraints gives interpretable groups of crosstalk mechanisms in breast cancerDec 24 2016Apr 28 2017We introduce a tensor-based clustering method to extract sparse, low-dimensional structure from high-dimensional, multi-indexed datasets. Specifically, this framework is designed to enable detection of clusters of data in the presence of structural requirements ... More
MixedTrails: Bayesian hypothesis comparison on heterogeneous sequential dataDec 21 2016Jul 11 2017Sequential traces of user data are frequently observed online and offline, e.g., as sequences of visited websites or as sequences of locations captured by GPS. However, understanding factors explaining the production of sequence data is a challenging ... More
Uncovering the Dynamics of Crowdlearning and the Value of KnowledgeDec 14 2016Learning from the crowd has become increasingly popular in the Web and social media. There is a wide variety of crowdlearning sites in which, on the one hand, users learn from the knowledge that other users contribute to the site, and, on the other hand, ... More
Quantum Walk in Periodic Potential on a Line and a Model of Interacting OpinionsDec 09 2016Two subjects are discussed in this work: localisation and recurrence in a model of quantum walk in a periodic potential, and a model of opinion dynamics with multiple choices of opinions.
City traffic forecasting using taxi GPS data: A coarse-grained cellular automata modelDec 08 2016City traffic is a dynamic system of enormous complexity. Modeling and predicting city traffic flow remains to be a challenge task and the main difficulties are how to specify the supply and demands and how to parameterize the model. In this paper we attempt ... More
Another phase transition in the Axelrod modelDec 08 2016Axelrod's model of cultural dissemination, despite its apparent simplicity, demonstrates complex behavior that has been of much interest in statistical physics. Despite the many variations and extensions of the model that have been investigated, a systematic ... More
A Method for Group Extraction and Analysis in Multilayer Social NetworksDec 07 2016The main subject studied in this dissertation is a multi-layered social network (MSN) and its analysis. One of the crucial problems in multi-layered social network analysis is community extraction. To cope with this problem the CLECC measure (Cross Layered ... More
Evolving Powergrids in Self-Organized Criticality: An analogy with Sandpile and EarthquakesDec 07 2016The stability of powergrid is crucial since its disruption affects systems ranging from street lightings to hospital life-support systems. Nevertheless, large blackouts are inevitable if powergrids are in the state of self-organized criticality (SOC). ... More
Evolving network structure of academic institutionsDec 06 2016Today's colleges and universities consist of highly complex structures that dictate interactions between the administration, faculty, and student body. These structures can play a role in dictating the efficiency of policy enacted by the administration ... More
Estimating Local Commuting Patterns From Geolocated Twitter DataDec 06 2016The emergence of large stores of transactional data generated by increasing use of digital devices presents a huge opportunity for policymakers to improve their knowledge of the local environment and thus make more informed and better decisions. A research ... More
A Unified Method of Detecting Core-Periphery Structure and Community Structure in NetworksDec 06 2016Core-periphery structure and community structure are two typical meso-scale structures in complex networks. Though the community detection has been extensively investigated from different perspectives, the definition and the detection of core-periphery ... More
Zipf's law, unbounded complexity and open-ended evolutionDec 06 2016A major problem for evolutionary theory is understanding the so called {\em open-ended} nature of evolutionary change. Open-ended evolution (OEE) refers to the unbounded increase in complexity that seems to characterise evolution on multiple scales. This ... More
HellRank: A Hellinger-based Centrality Measure for Bipartite Social NetworksDec 05 2016Measuring centrality in a social network, especially in bipartite mode, poses several challenges such as requirement of full knowledge of the network topology and lack of properly detection of top-k behavioral representative users. In this paper, to overcome ... More
The Effects of Data Quality on the Analysis of Corporate Board Interlock NetworksDec 05 2016Nowadays, social networks of ever increasing size are studied by researchers from a range of disciplines. The data underlying these networks is often automatically gathered from API's, websites or existing databases. As a result, the quality of this data ... More
MCMC Louvain for Online Community DetectionDec 05 2016We introduce a novel algorithm of community detection that maintains dynamically a community structure of a large network that evolves with time. The algorithm maximizes the modularity index thanks to the construction of a randomized hierarchical clustering ... More
Inspiration or Preparation? Explaining Creativity in Scientific EnterpriseDec 05 2016Human creativity is the ultimate driving force behind scientific progress. While the building blocks of innovations are often embodied in existing knowledge, it is creativity that blends seemingly disparate ideas. Existing studies have made striding advances ... More
Universality of the SIS prevalence in networksDec 05 2016Epidemic models are increasingly used in real-world networks to understand diffusion phenomena (such as the spread of diseases, emotions, innovations, failures) or the transport of information (such as news, memes in social on-line networks). A new analysis ... More
Modeling Structure and Resilience of the Dark NetworkDec 05 2016While the statistical and resilience properties of the Internet are no more changing significantly across time, the Darknet, a network devoted to keep anonymous its traffic, still experiences rapid changes to improve the security of its users. Here, we ... More
Interacting opinion and disease dynamics in multiplex networks: discontinuous phase transition and non-monotonic consensus timesDec 03 2016We study the dynamics of disease spreading intertwined with that of opinion formation, in a population of agents that interact via two types of links --contact and social--. These two interacting dynamical processes take place on two layers of networks, ... More