4
4.0
Jun 30, 2018
06/18
by
A. Panisson; L. Gauvin; M. Quaggiotto; C. Cattuto
texts
eye 4
favorite 0
comment 0
Streams of user-generated content in social media exhibit patterns of collective attention across diverse topics, with temporal structures determined both by exogenous factors and endogenous factors. Teasing apart different topics and resolving their individual, concurrent, activity timelines is a key challenge in extracting knowledge from microblog streams. Facing this challenge requires the use of methods that expose latent signals by using term correlations across posts and over time. Here...
Topics: Physics, Physics and Society, Computing Research Repository, Social and Information Networks
Source: http://arxiv.org/abs/1403.1403
12
12
Jun 29, 2018
06/18
by
Abdullah Almaatouq; Laura Radaelli; Alex Pentland; Erez Shmueli
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Friendship is a fundamental characteristic of human beings and usually assumed to be reciprocal in nature. Despite this common expectation, in reality, not all friendships by default are reciprocal nor created equal. Here, we show that reciprocated friendships are more intimate and they are substantially different from those that are not. We examine the role of reciprocal ties in inducing more effective peer pressure in a cooperative arrangements setting and find that the directionality of...
Topics: Computers and Society, Physics and Society, Physics, Computing Research Repository, Social and...
Source: http://arxiv.org/abs/1610.03901
16
16
Jul 19, 2013
07/13
by
Abram, Stephen; Siess, Judith A; Lorig, Jonathan
texts
eye 16
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comment 0
Includes bibliographical references (p. 179-192) and index
Topics: Libraries and society, Libraries, Library users, Library science
3
3.0
Jun 30, 2018
06/18
by
Alaa Saade; Florent Krzakala; Lenka Zdeborová
texts
eye 3
favorite 0
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Spectral clustering is a standard approach to label nodes on a graph by studying the (largest or lowest) eigenvalues of a symmetric real matrix such as e.g. the adjacency or the Laplacian. Recently, it has been argued that using instead a more complicated, non-symmetric and higher dimensional operator, related to the non-backtracking walk on the graph, leads to improved performance in detecting clusters, and even to optimal performance for the stochastic block model. Here, we propose to use...
Topics: Physics, Statistics, Disordered Systems and Neural Networks, Computing Research Repository, Physics...
Source: http://arxiv.org/abs/1406.1880
UC Berkeley Webcast Videos
2,435
2.4K
Feb 9, 2018
02/18
by
Alain Rappaport; Anne Wojcicki; Richard M. Frank; Mildred Dresselhaus; Gary Wolff; Marios Sophocleous; S. Geoffrey Schladow; James Hansen; David M. Kennedy; Jennifer M. McKay; Renee Kidson; Claude Cohen-Tannoudji; Tim Quinn; John Perry; Neil H. Shubin; William A. Lester, Jr.; Orville Schell; Mitch Avalon; Chris Poland; Leonard Konikow; Joel Fajans; Richard Muller; Andrew Lange; Mike Jani; Hérve Piégay; Bob Byer; Charles Townes; Ed Moses; Roger Falcone; Claire Kremen; Dale Coke; David...
audio
eye 2,435
favorite 2
comment 0
UC Berkeley special events, interviews, and lectures featuring distinguished faculty and guests. To view these events as webcasts visit webcast.berkeley.edu. Full course lectures available, too. Information-Based Personalized Medicine Center for Computational Biology Industry Seminar - March 20, 2008 Information-Based Personalized Medicine Alain Rappaport , General Manager of Health Search, Microsoft Health Solutions Group 23andMe: Empowering Consumer-Enabled Research Center for...
Topics: UC Berkeley, Berkeley, Cal, webcast.berkeley, iTunes U, Science, Education, Physics, Water...
UC Berkeley Webcast Videos
5,816
5.8K
Feb 9, 2018
02/18
by
Alain de Janvry; Liza Cirolia; Shu Shang; Jamal Khan; Kate Ross; Matthew Pruter; Pedro Rosado; Henry E. Brady; Bruce E. Cain; Robert B. Reich; Hunter Lovins; Jesse Choper; Richard Komer; Doug Wheeler; Mary McDonald; Kathy Jamil; Mark Kalish; Ana-Marie Jones; Daniel E. Cohen; Pete Wilson; Carol Corrigan; Justice Ming Chin; Julie Shackford-Bradley; James A. Leach; Barbara K. Bodine; Stephen Breyer; Michael McConnell; David Tatel; Theda Skocpol; Maria Echaveste; David Frum; Kathleen Parker; Ethan...
movies
eye 5,816
favorite 1
comment 0
UC Berkeley special events, interviews, and lectures featuring distinguished faculty and guests. To view these events as webcasts visit webcast.berkeley.edu. Full course lectures available, too. Blum Center: The Global Food Crisis: A World Development Report Perspective "The Global Food Crisis: A World Development Report Perspective" The world food crisis has increased attention to the role of agriculture for development. But will this make a difference? Or will agriculture continue...
Topics: UC Berkeley, Berkeley, Cal, webcast.berkeley, iTunes U, Society, Education, Blum Center For...
UC Berkeley Webcast Videos
1,971
2.0K
Feb 9, 2018
02/18
by
Alain de Janvry; Liza Cirolia; Shu Shang; Jamal Khan; Kate Ross; Matthew Pruter; Pedro Rosado; Henry E. Brady; Bruce E. Cain; Robert B. Reich; Hunter Lovins; Pete Wilson; Carol Corrigan; Justice Ming Chin; Julie Shackford-Bradley; James A. Leach; Barbara K. Bodine; Stephen Breyer; Michael McConnell; David Tatel; Theda Skocpol; Maria Echaveste; David Frum; Kathleen Parker; Ethan Rarick; Mike Connery; Meghan McCain; Randi Zuckerberg; Heather Smith; Nicole Lapin; Heddy Riss; Valérie Amiraux;...
audio
eye 1,971
favorite 0
comment 0
UC Berkeley special events, interviews, and lectures featuring distinguished faculty and guests. To view these events as webcasts visit webcast.berkeley.edu. Full course lectures available, too. Blum Center: The Global Food Crisis: A World Development Report Perspective "The Global Food Crisis: A World Development Report Perspective" The world food crisis has increased attention to the role of agriculture for development. But will this make a difference? Or will agriculture continue...
Topics: UC Berkeley, Berkeley, Cal, webcast.berkeley, iTunes U, Society, Education, Blum Center For...
7
7.0
Jun 30, 2018
06/18
by
Alan Sherman; M. Dark; A. Chan; R. Chong; T. Morris; L. Oliva; J. Springer; B. Thuraisingham; C. Vatcher; R. Verma; S. Wetzel
texts
eye 7
favorite 0
comment 0
Since fall 2012, several National Centers of Academic Excellence in Cyber Defense Research (CAE-Rs) fielded a collaborative course to engage students in solving applied cybersecurity research problems. We describe our experiences with this Information Security Research and Education (INSuRE) research collaborative. We explain how we conducted our project-based research course, give examples of student projects, and discuss the outcomes and lessons learned.
Topics: Cryptography and Security, Computers and Society, Computing Research Repository
Source: http://arxiv.org/abs/1703.08859
4
4.0
Jun 29, 2018
06/18
by
Aleksandar Dedinec; Borko Jovanovski; Andrej Gajduk; Natasa Markovska; Ljupco Kocarev
texts
eye 4
favorite 0
comment 0
We consider an integration of renewable energy into transport and electricity sectors through vehicle to grid (V2G) technologies for an energy system that is predominantly based on lignite. The national energy system of Macedonia is modeled using EnergyPLAN which integrates energy for electricity, transport and heat, and includes hourly fluctuations in human needs and the environment. We show that electric-vehicles can provide the necessary storage enabling a fully renewable energy profile for...
Topics: Physics, Physics and Society
Source: http://arxiv.org/abs/1603.06815
18
18
Jun 29, 2018
06/18
by
Aleksander Ključevšek; Luka Krapić
texts
eye 18
favorite 0
comment 0
Molecular gastronomy is a distinct sub-discipline of food science that takes an active role in examining chemical and physical properties of ingredients and as such lends itself to more scientific approaches to finding novel ingredient pairings. With thousands of ingredients and molecules, which participate in the creation of each ingredient's flavour, it can be difficult to find compatible flavours in an efficient manner. Existing literature is focused mainly on analysis of already established...
Topics: Physics and Society, Physics, Computing Research Repository, Social and Information Networks
Source: http://arxiv.org/abs/1602.03719
5
5.0
Jun 30, 2018
06/18
by
Alessandro Chessa; Irene Crimaldi; Massimo Riccaboni; Luca Trapin
texts
eye 5
favorite 0
comment 0
In this work we are interested in identifying clusters of "positional equivalent" actors, i.e. actors who play a similar role in a system. In particular, we analyze weighted bipartite networks that describes the relationships between actors on one side and features or traits on the other, together with the intensity level to which actors show their features. The main contribution of our work is twofold. First, we develop a methodological approach that takes into account the underlying...
Topics: Physics, Data Analysis, Statistics and Probability, Computing Research Repository, Physics and...
Source: http://arxiv.org/abs/1404.2590
4
4.0
Jun 30, 2018
06/18
by
Alessandro Corbetta; Luca Bruno; Adrian Muntean; Federico Toschi
texts
eye 4
favorite 0
comment 0
Understanding the complex behavior of pedestrians walking in crowds is a challenge for both science and technology. In particular, obtaining reliable models for crowd dynamics, capable of exhibiting qualitatively and quantitatively the observed emergent features of pedestrian flows, may have a remarkable impact for matters as security, comfort and structural serviceability. Aiming at a quantitative understanding of basic aspects of pedestrian dynamics, extensive and high-accuracy measurements...
Topics: Physics, Physics and Society
Source: http://arxiv.org/abs/1407.1254
4
4.0
Jun 29, 2018
06/18
by
Alexander Belyi; Iva Bojic; Stanislav Sobolevsky; Izabela Sitko; Bartosz Hawelka; Lada Rudikova; Alexander Kurbatski; Carlo Ratti
texts
eye 4
favorite 0
comment 0
Recent availability of geo-localized data capturing individual human activity together with the statistical data on international migration opened up unprecedented opportunities for a study on global mobility. In this paper we consider it from the perspective of a multi-layer complex network, built using a combination of three datasets: Twitter, Flickr and official migration data. Those datasets provide different but equally important insights on the global mobility: while the first two...
Topics: Computers and Society, Physics and Society, Physics, Computing Research Repository, Social and...
Source: http://arxiv.org/abs/1601.05532
20
20
Jun 26, 2018
06/18
by
Alexander Hubers; Emily Andrulis; Levi Scott; Tanner Stirrat; Duc Tran; Ruonan Zhang; Ross Sowell; Cindy Grimm; William D. Smart
texts
eye 20
favorite 0
comment 0
Systems that give control of a mobile robot to a remote user raise privacy concerns about what the remote user can see and do through the robot. We aim to preserve some of that privacy by manipulating the video data that the remote user sees. Through two user studies, we explore the effectiveness of different video manipulation techniques at providing different types of privacy. We simultaneously examine task performance in the presence of privacy protection. In the first study, participants...
Topics: Robotics, Computing Research Repository, Computers and Society, Cryptography and Security
Source: http://arxiv.org/abs/1501.03188
15
15
Jun 27, 2018
06/18
by
Alexandru-Ionuţ Băbeanu; Leandros Talman; Diego Garlaschelli
texts
eye 15
favorite 0
comment 0
Understanding the formation of subjective human traits, such as preference and opinions, is an important, but poorly explored problem. An essential aspect is that traits collectively evolve under the repeated action of social influence interactions, which is the focus of many quantitative studies of cultural dynamics. In this paradigm, dynamical models require that all traits are fixed when specifying the "initial cultural state". Typically, this initial state is randomly generated,...
Topics: Physics and Society, Computing Research Repository, Data Analysis, Statistics and Probability,...
Source: http://arxiv.org/abs/1506.01634
5
5.0
Jun 29, 2018
06/18
by
Alfredo Braunstein; Luca Dall'Asta; Guilhem Semerjian; Lenka Zdeborová
texts
eye 5
favorite 0
comment 0
We study the network dismantling problem, which consists in determining a minimal set of vertices whose removal leaves the network broken into connected components of sub-extensive size. For a large class of random graphs, this problem is tightly connected to the decycling problem (the removal of vertices leaving the graph acyclic). Exploiting this connection and recent works on epidemic spreading we present precise predictions for the minimal size of a dismantling set in a large random graph...
Topics: Data Structures and Algorithms, Statistical Mechanics, Condensed Matter, Physics, Computing...
Source: http://arxiv.org/abs/1603.08883
12
12
Jun 27, 2018
06/18
by
Alina Sîrbu; Martin Becker; Saverio Caminiti; Bernard De Baets; Bart Elen; Louise Francis; Pietro Gravino; Andreas Hotho; Stefano Ingarra; Vittorio Loreto; Andrea Molino; Juergen Mueller; Jan Peters; Ferdinando Ricchiuti; Fabio Saracino; Vito D. P. Servedio; Gerd Stumme; Jan Theunis; Francesca Tria; Joris Van den Bossche
texts
eye 12
favorite 0
comment 0
The issue of sustainability is at the top of the political and societal agenda, being considered of extreme importance and urgency. Human individual action impacts the environment both locally (e.g., local air/water quality, noise disturbance) and globally (e.g., climate change, resource use). Urban environments represent a crucial example, with an increasing realization that the most effective way of producing a change is involving the citizens themselves in monitoring campaigns (a citizen...
Topics: Physics and Society, Data Analysis, Statistics and Probability, Physics
Source: http://arxiv.org/abs/1503.07730
5
5.0
Jun 29, 2018
06/18
by
Allen Huang; Lars Roemheld
texts
eye 5
favorite 0
comment 0
We investigate shared language between U.S. Supreme Court majority opinions and interest groups' corresponding amicus briefs. Specifically, we evaluate whether language that originated in an amicus brief acquired legal precedent status by being cited in the Court's opinion. Using plagiarism detection software, automated querying of a large legal database, and manual analysis, we establish seven instances where interest group amici were able to formulate constitutional case law, setting binding...
Topics: Computation and Language, Computing Research Repository, Computers and Society
Source: http://arxiv.org/abs/1606.04672
Includes proceedings containing resolutions on the death of the President Abraham Lincoln by Levi Lincoln and Stephen Salisbury, also, reports of the Council, the Treasurer, and the Librarian
Topics: Lincoln, Abraham, 1809-1865, American Antiquarian Society, Presidents, Learned institutions and...
The Anniversary exercises were held at Irving Hall, May 8th, 1862, Heman Lincoln, Senior Vice President of the Society, in the Chair
Topics: American Bible Society, American Bible Society, Bible
University of Illinois at Chicago
279
279
Jan 27, 2010
01/10
by
American Folklore Society; Lawrence J. Gutter Collection of Chicagoana (University of Illinois at Chicago) ICIU
texts
eye 279
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comment 0
Cover title
Topic: American Folklore Society
A Relation of an Idiot at Ostend; With Two Other Chirurgical Cases. By Mr. Claud. Amijand, in a Letter to Mr. Wilson: Communicated by Mr. de la Fage. Amijand, C.; la Fage, d Philosophical Transactions (1683-1775). 1753-01-01. 26:170–174
Topics: Proceedings of the Royal Society of London, Philosophical Transactions of the Royal Society
5
5.0
Jun 29, 2018
06/18
by
Aming Li; Lei Zhou; Qi Su; Sean P. Cornelius; Yang-Yu Liu; Long Wang
texts
eye 5
favorite 0
comment 0
The structure of social networks is a key determinant in fostering cooperation and other altruistic behavior among naturally selfish individuals. However, most real social interactions are temporal, being both finite in duration and spread out over time. This raises the question of whether stable cooperation can form despite an intrinsically fragmented social fabric. Here we develop a framework to study the evolution of cooperation on temporal networks in the setting of the classic Prisoner's...
Topics: Biological Physics, Populations and Evolution, Quantitative Biology, Physics, Physics and Society
Source: http://arxiv.org/abs/1609.07569
6
6.0
Jun 30, 2018
06/18
by
Anatol E. Wegner; Luis Ospina-Forero; Robert E. Gaunt; Charlotte M. Deane; Gesine Reinert
texts
eye 6
favorite 0
comment 0
Many complex systems can be represented as networks, and the problem of network comparison is becoming increasingly relevant. There are many techniques for network comparison, from simply comparing network summary statistics to sophisticated but computationally costly alignment-based approaches. Yet it remains challenging to accurately cluster networks that are of a different size and density, but hypothesized to be structurally similar. In this paper, we address this problem by introducing a...
Topics: Physics, Physics and Society, Computing Research Repository, Social and Information Networks,...
Source: http://arxiv.org/abs/1704.00387
The Properties of the Aluminium-Tin Alloys. Anderson, W.; Lean, G Proceedings of the Royal Society of London (1854-1905). 1903-01-01. 72:277–284
Topics: Proceedings of the Royal Society of London, Philosophical Transactions of the Royal Society
6
6.0
Jun 29, 2018
06/18
by
Andrea Gorrini; Luca Crociani; Claudio Feliciani; Pengfei Zhao; Katsuhiro Nishinari; Stefania Bandini
texts
eye 6
favorite 0
comment 0
The calibration and validation of pedestrian simulations require the acquisition of empirical evidences of human behaviour. The current work presents the results of an experiment focused on the potentially combined effect of counter flow and grouping on pedestrian dynamics. In particular, we focused on: (i) four different configurations of flow ratio (the rate between the minor flow and the total flow in bidirectional scenarios); (ii) dyads, as the most frequently observed and basic social...
Topics: Physics and Society, Physics, Computing Research Repository, Multiagent Systems
Source: http://arxiv.org/abs/1610.08325
5
5.0
Jun 30, 2018
06/18
by
Andrea Lancichinetti; M. Irmak Sirer; Jane X. Wang; Daniel Acuna; Konrad Körding; Luís A. Nunes Amaral
texts
eye 5
favorite 0
comment 0
Much of human knowledge sits in large databases of unstructured text. Leveraging this knowledge requires algorithms that extract and record metadata on unstructured text documents. Assigning topics to documents will enable intelligent search, statistical characterization, and meaningful classification. Latent Dirichlet allocation (LDA) is the state-of-the-art in topic classification. Here, we perform a systematic theoretical and numerical analysis that demonstrates that current optimization...
Topics: Information Retrieval, Machine Learning, Learning, Computing Research Repository, Physics and...
Source: http://arxiv.org/abs/1402.0422
4
4.0
Jun 29, 2018
06/18
by
Andrea Tacchella; Riccardo Di Clemente; Andrea Gabrielli; Luciano Pietronero
texts
eye 4
favorite 0
comment 0
Diversity is a fundamental feature of ecosystems, even when the concept of ecosystem is extended to sociology or economics. Diversity can be intended as the count of different items, animals, or, more generally, interactions. There are two classes of stylized facts that emerge when diversity is taken into account. The first are Diversity explosions: evolutionary radiations in biology, or the process of escaping 'Poverty Traps' in economics are two well known examples. The second is nestedness:...
Topics: Physics, Physics and Society
Source: http://arxiv.org/abs/1609.03617
14
14
Jun 29, 2018
06/18
by
Andrew Berdahl; Christa Brelsford; Caterina De Bacco; Marion Dumas; Vanessa Ferdinand; Joshua A. Grochow; Laurent Hébert-Dufresne; Yoav Kallus; Christopher P. Kempes; Artemy Kolchinsky; Daniel B. Larremore; Eric Libby; Eleanor A. Power; Caitlin A. Stern; Brendan Tracey
texts
eye 14
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comment 0
Pathogens can spread epidemically through populations. Beneficial contagions, such as viruses that enhance host survival or technological innovations that improve quality of life, also have the potential to spread epidemically. How do the dynamics of beneficial biological and social epidemics differ from those of detrimental epidemics? We investigate this question using three theoretical approaches. First, in the context of population genetics, we show that a horizontally-transmissible element...
Topics: Adaptation and Self-Organizing Systems, Physics and Society, Populations and Evolution, Nonlinear...
Source: http://arxiv.org/abs/1604.02096
37
37
Jun 29, 2018
06/18
by
Andrew Conway; Michelle Blom; Lee Naish; Vanessa Teague
texts
eye 37
favorite 0
comment 0
We re-examine the 2012 local government elections in New South Wales, Australia. The count was conducted electronically using a randomised form of the Single Transferable Vote (STV). It was already well known that randomness does make a difference to outcomes in some seats. We describe how the process could be amended to include a demonstration that the randomness was chosen fairly. Second, and more significantly, we found an error in the official counting software, which caused a mistake in...
Topics: Cryptography and Security, Computing Research Repository, Computers and Society
Source: http://arxiv.org/abs/1611.02015
3
3.0
Jun 30, 2018
06/18
by
Andrey Y. Lokhov; Marc Mézard; Lenka Zdeborová
texts
eye 3
favorite 0
comment 0
Understanding and quantifying the dynamics of disordered out-of-equilibrium models is an important problem in many branches of science. Using the dynamic cavity method on time trajectories, we construct a general procedure for deriving the dynamic message-passing equations for a large class of models with unidirectional dynamics, which includes the zero-temperature random field Ising model, the susceptible-infected-recovered model, and rumor spreading models. We show that unidirectionality of...
Topics: Physics, Statistical Mechanics, Disordered Systems and Neural Networks, Computing Research...
Source: http://arxiv.org/abs/1407.1255
4
4.0
Jun 30, 2018
06/18
by
András Szabó-Solticzky; Luc Berthouze; Istvan Z. Kiss; Péter L. Simon
texts
eye 4
favorite 0
comment 0
An adaptive network model using SIS epidemic propagation with link-type dependent link activation and deletion is considered. Bifurcation analysis of the pairwise ODE approximation and the network-based stochastic simulation is carried out, showing that three typical behaviours may occur; namely, oscillations can be observed besides disease-free or endemic steady states. The oscillatory behaviour in the stochastic simulations is studied using Fourier analysis, as well as through analysing the...
Topics: Physics, Quantitative Biology, Mathematics, Physics and Society, Probability, Populations and...
Source: http://arxiv.org/abs/1410.4953
6
6.0
Jun 29, 2018
06/18
by
Ang-Kun Wu; Liang Tian; Yang-Yu Liu
texts
eye 6
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comment 0
A bridge in a graph is an edge whose removal disconnects the graph and increases the number of connected components. We calculate the fraction of bridges in a wide range of real-world networks and their randomized counterparts. We find that real networks typically have more bridges than their completely randomized counterparts, but very similar fraction of bridges as their degree-preserving randomizations. We define a new edge centrality measure, called bridgeness, to quantify the importance of...
Topics: Social and Information Networks, Computing Research Repository, Physics, Physics and Society
Source: http://arxiv.org/abs/1611.10159
15
15
Jun 29, 2018
06/18
by
Anh Nguyen; Long Nguyen; Dong Nguyen; Uyen Le; Tuan Tran
texts
eye 15
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comment 0
Recent studies have shown that information mined from Craigslist can be used for informing public health policy or monitoring risk behavior. This paper presents a text-mining method for conducting public health surveillance of marijuana use concerns in the U.S. using online classified ads in Craigslist. We collected more than 200 thousands of rental ads in the housing categories in Craigslist and devised text-mining methods for efficiently and accurately extract rental ads associated with...
Topics: Social and Information Networks, Computing Research Repository, Computers and Society
Source: http://arxiv.org/abs/1612.07630
5
5.0
Jun 29, 2018
06/18
by
Anil Damle; Victor Minden; Lexing Ying
texts
eye 5
favorite 0
comment 0
We present a new algorithm for spectral clustering based on a column-pivoted QR factorization that may be directly used for cluster assignment or to provide an initial guess for k-means. Our algorithm is simple to implement, direct, and requires no initial guess. Furthermore, it scales linearly in the number of nodes of the graph and a randomized variant provides significant computational gains. Provided the subspace spanned by the eigenvectors used for clustering contains a basis that...
Topics: Physics and Society, Numerical Analysis, Physics, Mathematics, Computing Research Repository,...
Source: http://arxiv.org/abs/1609.08251
3
3.0
Jun 29, 2018
06/18
by
Annamaria Carissimo; Luisa Cutillo; Italia Defeis
texts
eye 3
favorite 0
comment 0
The large amount of work on community detection and its applications leaves unaddressed one important question: the statistical validation of the results. In this paper we present a methodology able to clearly detect if the community structure found by some algorithms is statistically significant or is a result of chance, merely due to edge positions in the network. Given a community detection method and a network of interest, our proposal examines the stability of the partition recovered...
Topics: Social and Information Networks, Methodology, Data Structures and Algorithms, Physics, Statistics,...
Source: http://arxiv.org/abs/1610.05045
17
17
Jun 28, 2018
06/18
by
Antoine Allard; Laurent Hébert-Dufresne; Jean-Gabriel Young; Louis J. Dubé
texts
eye 17
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comment 0
We present a comprehensive and versatile theoretical framework to study site and bond percolation on clustered and correlated random graphs. Our contribution can be summarized in three main points. (i) We introduce a set of iterative equations that solve the exact distribution of the size and composition of components in finite size quenched or random multitype graphs. (ii) We define a very general random graph ensemble that encompasses most of the models published to this day, and also that...
Topics: Physics and Society, Statistical Mechanics, Physics, Condensed Matter
Source: http://arxiv.org/abs/1509.01207
9
9.0
Jun 30, 2018
06/18
by
Antonio Lima; Luca Rossi; Mirco Musolesi
texts
eye 9
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comment 0
GitHub is the most popular repository for open source code. It has more than 3.5 million users, as the company declared in April 2013, and more than 10 million repositories, as of December 2013. It has a publicly accessible API and, since March 2012, it also publishes a stream of all the events occurring on public projects. Interactions among GitHub users are of a complex nature and take place in different forms. Developers create and fork repositories, push code, approve code pushed by others,...
Topics: Physics, Data Analysis, Statistics and Probability, Computers and Society, Computing Research...
Source: http://arxiv.org/abs/1407.2535
15
15
Jun 27, 2018
06/18
by
Antonio Lima; Veljko Pejovic; Luca Rossi; Mirco Musolesi; Marta Gonzalez
texts
eye 15
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comment 0
The possibility to analyze, quantify and forecast epidemic outbreaks is fundamental when devising effective disease containment strategies. Policy makers are faced with the intricate task of drafting realistically implementable policies that strike a balance between risk management and cost. Two major techniques policy makers have at their disposal are: epidemic modeling and contact tracing. Models are used to forecast the evolution of the epidemic both globally and regionally, while contact...
Topics: Physics and Society, Computing Research Repository, Social and Information Networks, Physics
Source: http://arxiv.org/abs/1504.01316
16
16
Jun 26, 2018
06/18
by
Antonio Majdandzic; Lidia A. Braunstein; Chester Curme; Irena Vodenska; Sary Levy-Carciente; H. Eugene Stanley; Shlomo Havlin
texts
eye 16
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comment 0
Systems that comprise many interacting dynamical networks, such as the human body with its biological networks or the global economic network consisting of regional clusters, often exhibit complicated collective dynamics. To understand the collective behavior of such systems, we investigate a model of interacting networks exhibiting the fundamental processes of failure, damage spread, and recovery. We find a very rich phase diagram that becomes exponentially more complex as the number of...
Topics: Statistical Mechanics, Physics, Condensed Matter, Physics and Society
Source: http://arxiv.org/abs/1502.00244
3
3.0
Jun 30, 2018
06/18
by
Aria Rezaei; Bryan Perozzi; Leman Akoglu
texts
eye 3
favorite 0
comment 0
Given a set of attributed subgraphs known to be from different classes, how can we discover their differences? There are many cases where collections of subgraphs may be contrasted against each other. For example, they may be assigned ground truth labels (spam/not-spam), or it may be desired to directly compare the biological networks of different species or compound networks of different chemicals. In this work we introduce the problem of characterizing the differences between attributed...
Topics: Information Retrieval, Physics, Computing Research Repository, Social and Information Networks,...
Source: http://arxiv.org/abs/1701.09039
6
6.0
Jun 30, 2018
06/18
by
Arkadiusz Stopczynski; Dazza Greenwood; Lars Kai Hansen; Alex Pentland
texts
eye 6
favorite 1
comment 0
Human brain activity collected in the form of Electroencephalography (EEG), even with low number of sensors, is an extremely rich signal. Traces collected from multiple channels and with high sampling rates capture many important aspects of participants' brain activity and can be used as a unique personal identifier. The motivation for sharing EEG signals is significant, as a mean to understand the relation between brain activity and well-being, or for communication with medical services. As...
Topics: Computers and Society, Computing Research Repository
Source: http://arxiv.org/abs/1403.2745
The Phenomena of Luminosity and Their Possible Correlation with Radio-Activity. Armstrong, H.; Lowry, T Proceedings of the Royal Society of London (1854-1905). 1903-01-01. 72:258–264
Topics: Proceedings of the Royal Society of London, Philosophical Transactions of the Royal Society
Persulphuric Acids. Armstrong, H.; Lowry, T Proceedings of the Royal Society of London (1854-1905). 1902-01-01. 70:94–99
Topics: Proceedings of the Royal Society of London, Philosophical Transactions of the Royal Society
12
12
Jun 28, 2018
06/18
by
Artemy Kolchinsky; Alexander J. Gates; Luis M. Rocha
texts
eye 12
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We propose a method to decompose dynamical systems based on the idea that modules constrain the spread of perturbations. We find partitions of system variables that maximize 'perturbation modularity', defined as the autocovariance of coarse-grained perturbed trajectories. The measure effectively separates the fast intramodular from the slow intermodular dynamics of perturbation spreading (in this respect, it is a generalization of the 'Markov stability' method of network community detection)....
Topics: Nonlinear Sciences, Social and Information Networks, Physics and Society, Data Analysis, Statistics...
Source: http://arxiv.org/abs/1509.04386
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10.0
Jun 30, 2018
06/18
by
Attila Szolnoki; Mauro Mobilia; Luo-Luo Jiang; Bartosz Szczesny; Alastair M. Rucklidge; Matjaz Perc
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Rock is wrapped by paper, paper is cut by scissors, and scissors are crushed by rock. This simple game is popular among children and adults to decide on trivial disputes that have no obvious winner, but cyclic dominance is also at the heart of predator-prey interactions, the mating strategy of side-blotched lizards, the overgrowth of marine sessile organisms, and the competition in microbial populations. Cyclical interactions also emerge spontaneously in evolutionary games entailing...
Topics: Physics, Nonlinear Sciences, Quantitative Biology, Statistical Mechanics, Physics and Society,...
Source: http://arxiv.org/abs/1408.6828
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16
Jun 28, 2018
06/18
by
Avhishek Chatterjee; Lav R. Varshney; Sriram Vishwanath
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Crowdsourcing of jobs to online freelance markets is rapidly gaining popularity. Most crowdsourcing platforms are uncontrolled and offer freedom to customers and freelancers to choose each other. This works well for unskilled jobs (e.g., image classification) with no specific quality requirement since freelancers are functionally identical. For skilled jobs (e.g., software development) with specific quality requirements, however, this does not ensure that the maximum number of job requests is...
Topics: Computing Research Repository, Multiagent Systems, Computers and Society
Source: http://arxiv.org/abs/1508.00023
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4.0
Jun 30, 2018
06/18
by
B. Podobnik; D. Horvatic; M. Bertella; L. Feng; X. Huang; B. Li
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Complex non-linear interactions between banks and assets we model by two time-dependent Erd\H{o}s Renyi network models where each node, representing bank, can invest either to a single asset (model I) or multiple assets (model II). We use dynamical network approach to evaluate the collective financial failure---systemic risk---quantified by the fraction of active nodes. The systemic risk can be calculated over any future time period, divided on sub-periods, where within each sub-period banks...
Topics: Physics, Risk Management, Quantitative Finance, Physics and Society
Source: http://arxiv.org/abs/1403.5623
The Two-Dimensional Slow Motion of Viscous Fluids. Bairstow, L.; Cave, B.; Lang, E. Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934). 1922-01-02. 100 (705):394–413
Topics: Proceedings of the Royal Society of London, Philosophical Transactions of the Royal Society
An Account of Mr. Leeuwenhoek's Microscopes; By Mr. Henry Baker, F. R. S Baker, H.; Leeuwenhoek, M Philosophical Transactions (1683-1775). 1753-01-01. 41:503–519
Topics: Proceedings of the Royal Society of London, Philosophical Transactions of the Royal Society
