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Identification of clusters of investors from their real trading activity in a financial market
investors real trading activity Trading and Market Microstructure
2011/8/17
Abstract: We use statistically validated networks, a recently introduced method to validate links in a bipartite system, to identify clusters of investors trading in a financial market. Specifically, ...
Abstract: We present a new, efficient method for automatically detecting severe conflicts `edit wars' in Wikipedia and evaluate this method on six different language WPs. We discuss how the number of ...
The Buddy Quiz: A collaborative assessment and a representation of the scientific enterprise
The Buddy Quiz collaborative assessment the scientific enterprise representation
2011/8/5
Abstract: The form and function of a collaborative assessment known as a "Buddy Quiz" is presented. The assessment is conducted in three successive phases over a contiguous 45- to 60-minute class peri...
Statistical Laws Governing Fluctuations in Word Use from Word Birth to Word Death
Statistical Laws Governing Fluctuations Word Birth Word Death
2011/8/5
Abstract: How often a given word is used, relative to other words, can convey information about the word's linguistic utility. Using Google word data for 3 languages over the 209-year period 1800-2008...
What Trends in Chinese Social Media
social network web structure analysis social computing
2011/8/17
Abstract: There has been a tremendous rise in the growth of online social networks all over the world in recent times. While some networks like Twitter and Facebook have been well documented, the popu...
Hate networks revisited: time and user interface dependence study of user emotions in political forum
Hate networks time user interface user emotions political forum
2011/8/4
Abstract: The paper presents analysis of time evolution within am Internet political forum, characterized by large political differences and high levels of emotions. The study compares samples of disc...
Naming Game on Adaptive Weighted Networks
adaptive weighted networks naming game Statistical Mechanics
2011/8/17
Abstract: We examine a naming game on an adaptive weighted network. A weight of connection for a given pair of agents depends on their communication success rate and determines the probability with wh...
Triangles to Capture Social Cohesion
Triangles Capture Social Cohesion Social and Information Networks
2011/8/17
Abstract: Although community detection has drawn tremendous amount of attention across the sciences in the past decades, no formal consensus has been reached on the very nature of what qualifies a com...
Enhancing synchronization in growing networks
Enhancing synchronization growing networks evolution of real systems
2011/8/4
Abstract: Most real systems are growing. In order to model the evolution of real systems, many growing network models have been proposed to reproduce some specific topology properties. As the structur...
Abstract: One of the popular dynamics on complex networks is the epidemic spreading. An epidemic model describes how infections spread throughout a network. Among the compartmental models used to desc...
Network Extreme Eigenvalue - from Multimodal to Scale-free Network
Network Extreme Eigenvalue Multimodal Scale-free Network
2011/8/4
Abstract: The extreme eigenvalues of adjacency matrices are important indicators on the influences of topological structures to collective dynamical behavior of complex networks. Recent findings on th...
Collective emotions online and their influence on community life
Collective emotions online influence community life
2011/8/4
Abstract: E-communities, social groups interacting online, have recently become an object of interdisciplinary research. As with face-to-face meetings, Internet exchanges may not only include factual ...
Stegobot: construction of an unobservable communication network leveraging social behavior
Stegobot unobservable communication network leveraging social behavior
2011/8/16
Abstract: We propose the construction of an unobservable communications network using social networks. The communication endpoints are vertices on a social network. Probabilistically unobservable comm...
On an Efficient Marie Curie Initial Training Network
Collaboration networks strongly efficient networks cooperative game theory
2011/8/16
Abstract: Collaboration in science is one of the key components of world-class research. The European Commission supports collaboration between institutions and funds young researchers appointed by th...
Structural and Dynamical Patterns on Online Social Networks: the Spanish May 15th Movement as a case study
Structural and Dynamical Patterns Online Social Networks the Spanish May 15th Movement
2011/8/3
Abstract: The number of people using online social networks in their everyday life is continuously growing at a pace never saw before. This new kind of communication has an enormous impact on opinions...