802
802
Jan 29, 2010
01/10
by
3rd Generation Recordz
audio
eye 802
favorite 0
comment 0
Compilation of (mostly) Winnipeg bands from 3rd Generation Recordz, 1999. More info at http://witchpolice.blogspot.com.
Topics: DBS, Just for Kicks, 7-Teen, Mr. Bigglesworth, Insanely Unsound, Livewire, Closet Monster, Ripping...
6
6.0
Jun 30, 2018
06/18
by
A. Fiasconaro; M. Tumminello; V. Nicosia; V. Latora; R. N. Mantegna
texts
eye 6
favorite 0
comment 0
We propose here two new recommendation methods, based on the appropriate normalization of already existing similarity measures, and on the convex combination of the recommendation scores derived from similarity between users and between objects. We validate the proposed measures on three relevant data sets, and we compare their performance with several recommendation systems recently proposed in the literature. We show that the proposed similarity measures allow to attain an improvement of...
Topics: Physics, Physics and Society, Computing Research Repository, Information Retrieval, Social and...
Source: http://arxiv.org/abs/1412.3697
7
7.0
Jun 30, 2018
06/18
by
A. Hernando; R. Hernando; A. Plastino; E. Zambrano
texts
eye 7
favorite 0
comment 0
A quantitative understanding of cities' demographic dynamics is becoming a potentially useful tool for planning sustainable growth. The concomitant theory should reveal details of the cities' past and also of its interaction with nearby urban conglomerates for providing a reasonably complete picture. Using the exhaustive database of the Census Bureau in a time window of 170 years, we exhibit here empirical evidence for time and space correlations in the demographic dynamics of US counties, with...
Topics: Physics, Physics and Society
Source: http://arxiv.org/abs/1403.3918
5
5.0
Jun 30, 2018
06/18
by
A. J Morales; J. Borondo; J. C. Losada; R. M. Benito
texts
eye 5
favorite 0
comment 0
Understanding the collective reaction to individual actions is key to effectively spread information in social media. In this work we define efficiency on Twitter, as the ratio between the emergent spreading process and the activity employed by the user. We characterize this property by means of a quantitative analysis of the structural and dynamical patterns emergent from human interactions, and show it to be universal across several Twitter conversations. We found that some influential users...
Topics: Physics, Physics and Society, Computing Research Repository, Social and Information Networks
Source: http://arxiv.org/abs/1411.0473
19
19
Jun 27, 2018
06/18
by
A. J. Morales; J. Borondo; J. C. Losada; R. M. Benito
texts
eye 19
favorite 0
comment 0
We say that a population is perfectly polarized when divided in two groups of the same size and opposite opinions. In this paper, we propose a methodology to study and measure the emergence of polarization from social interactions. We begin by proposing a model to estimate opinions in which a minority of influential individuals propagate their opinions through a social network. The result of the model is an opinion probability density function. Next, we propose an index to quantify the extent...
Topics: Social and Information Networks, Physics and Society, Computing Research Repository, Physics,...
Source: http://arxiv.org/abs/1505.04095
5
5.0
Jun 30, 2018
06/18
by
A. Zenoni; G. Bonomi; A. Donzella; M. Subieta; G. Baronio; I. Bodini; D. Cambiaghi; M. Lancini; D. Vetturi; O. Barnabà; F. Fallavollita; R. Nardò; C. Riccardi; M. Rossella; P. Vitulo; G. Zumerle
texts
eye 5
favorite 0
comment 0
Cosmic ray radiation is mostly composed, at sea level, by high energy muons, which are highly penetrating particles capable of crossing kilometers of rock. Cosmic ray radiation constituted the first source of projectiles used to investigate the intimate structure of matter and is currently and largely used for particle detector test and calibration. The ubiquitous and steady presence at the Earth's surface and the high penetration capability has motivated the use of cosmic ray radiation also in...
Topics: Physics, Instrumentation and Methods for Astrophysics, Physics and Society, Astrophysics,...
Source: http://arxiv.org/abs/1403.1709
3
3.0
Jun 29, 2018
06/18
by
Abbas Razaghpanah; Anke Li; Arturo Filastò; Rishab Nithyanand; Vasilis Ververis; Will Scott; Phillipa Gill
texts
eye 3
favorite 0
comment 0
Despite the high perceived value and increasing severity of online information controls, a data-driven understanding of the phenomenon has remained elusive. In this paper, we consider two design points in the space of Internet censorship measurement with particular emphasis on how they address the challenges of locating vantage points, choosing content to test, and analyzing results. We discuss the trade offs of decisions made by each platform and show how the resulting data provides...
Topics: Networking and Internet Architecture, Computing Research Repository, Computers and Society
Source: http://arxiv.org/abs/1606.01979
8
8.0
Jun 28, 2018
06/18
by
Abigail Mae C. Jayin; Rene C. Batac
texts
eye 8
favorite 0
comment 0
We extract the individual names of persons mentioned in news reports from a Philippine-based daily in the English language from 2010-2012. Names are extracted using a learning algorithm that filters adjacent capitalized words and runs it through a database of non-names grown through training. The number of mentions of individual names shows strong temporal fluctuations, indicative of the nature of "hot" trends and issues in society. Despite these strong variations, however, we observe...
Topics: Social and Information Networks, Physics and Society, Computing Research Repository, Physics
Source: http://arxiv.org/abs/1507.02449
Translation of : Beskrifning om de swenska församlingars forna och närwarande tilstånd
Topics: Historical Society of Delaware, Swedes
343
343
Jan 24, 2015
01/15
by
Acrelius, Israel, 1714-1800; Reynolds, William M. (William Morton), 1812-1876
texts
eye 343
favorite 0
comment 0
Translation of : Beskrifning om de swenska församlingars forna och närwarande tilstånd
Topics: bub_upload, Historical Society of Delaware, Swedes
Source: http://books.google.com/books?id=IEjjAAAAMAAJ&hl=&source=gbs_api
104
104
Jun 8, 2009
06/09
by
Adams, Don; Goldbard, Arlene; Rockefeller Foundation. Creativity & Culture Division; Bellagio Study and Conference Center; Rockefeller Foundation's Community, Culture and Globalization Conference (2001 : Bellagio Study and Conference Center)
texts
eye 104
favorite 3
comment 0
"A Publication of the Rockefeller Foundation Creativity & Culture Division."
Topics: Arts and society, Cultural relations, Communications and the arts, Community arts projects,...
3
3.0
Jun 30, 2018
06/18
by
Adrián Carro; Federico Vazquez; Raúl Toral; Maxi San Miguel
texts
eye 3
favorite 0
comment 0
We study a network model that couples the dynamics of link states with the evolution of the network topology. The state of each link, either A or B, is updated according to the majority rule or zero-temperature Glauber dynamics, in which links adopt the state of the majority of their neighboring links in the network. Additionally, a link that is in a local minority is rewired to a randomly chosen node. While large systems evolving under the majority rule alone always fall into disordered...
Topics: Physics, Physics and Society, Computing Research Repository, Social and Information Networks
Source: http://arxiv.org/abs/1403.6106
4
4.0
Jun 29, 2018
06/18
by
Adrián Carro; Raúl Toral; Maxi San Miguel
texts
eye 4
favorite 0
comment 0
We propose a new analytical method to study stochastic, binary-state models on complex networks. Moving beyond the usual mean-field theories, this alternative approach is based on the introduction of an annealed approximation for uncorrelated networks, allowing to deal with the network structure as parametric heterogeneity. As an illustration, we study the noisy voter model, a modification of the original voter model including random changes of state. The proposed method is able to unfold the...
Topics: Physics and Society, Quantitative Finance, General Finance, Statistical Mechanics, Condensed...
Source: http://arxiv.org/abs/1602.06935
6
6.0
Jun 29, 2018
06/18
by
Adrián Carro; Raúl Toral; Maxi San Miguel
texts
eye 6
favorite 0
comment 0
Inspired by language competition processes, we present a model of coupled evolution of node and link states. In particular, we focus on the interplay between the use of a language and the preference or attitude of the speakers towards it, which we model, respectively, as a property of the interactions between speakers (a link state) and as a property of the speakers themselves (a node state). Furthermore, we restrict our attention to the case of two socially equivalent languages and to socially...
Topics: Physics and Society, Adaptation and Self-Organizing Systems, Nonlinear Sciences, Statistical...
Source: http://arxiv.org/abs/1609.00078
18
18
Jun 27, 2018
06/18
by
Adrián Carro; Raúl Toral; Maxi San Miguel
texts
eye 18
favorite 0
comment 0
We focus on the influence of external sources of information upon financial markets. In particular, we develop a stochastic agent-based market model characterized by a certain herding behavior as well as allowing traders to be influenced by an external dynamic signal of information. This signal can be interpreted as a time-varying advertising, public perception or rumor, in favor or against one of two possible trading behaviors, thus breaking the symmetry of the system and acting as a...
Topics: General Finance, Physics and Society, Quantitative Finance, Physics
Source: http://arxiv.org/abs/1506.03708
588
588
Jul 14, 2014
07/14
by
Afkhami, Mahnaz; Women's Learning Partnership for Rights, Development, and Peace; Boulding, Elise; Bunch, Charlotte; Rao, Arati; Narayan, Uma; Sharma, Arvind; Rao, Aruna
texts
eye 588
favorite 7
comment 0
This collection of essays begins a conversation on how to achieve a compassionate society, given the character and present distribution of technological and economic powers.
Topics: Peacebuilding, Women and peace, Human rights advocacy, Peace movements, International law and human...
7
7.0
Jun 29, 2018
06/18
by
Agnieszka Czaplicka; Raul Toral; Maxi San Miguel
texts
eye 7
favorite 0
comment 0
We consider the competition of two mechanisms for adoption processes: a so-called complex threshold dynamics and a simple Susceptible-Infected-Susceptible (SIS) model. Separately, these mechanisms lead, respectively, to first order and continuous transitions between non-adoption and adoption phases. We consider two interconnected layers. While all nodes on the first layer follow the complex adoption process, all nodes on the second layer follow the simple adoption process. Coupling between the...
Topics: Statistical Mechanics, Condensed Matter, Physics, Physics and Society
Source: http://arxiv.org/abs/1605.03479
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
On the Toxic Properties of the Saliva of Certain 'Non-Poisonous' Colubrines. Alcock, A.; Rogers, L Proceedings of the Royal Society of London (1854-1905). 1902-01-01. 70:446–454
Topics: Proceedings of the Royal Society of London, Philosophical Transactions of the Royal Society
4
4.0
Jun 30, 2018
06/18
by
Alejandro Lage-Castellanos; Andrey Y. Lokhov; Riccardo Zecchina
texts
eye 4
favorite 0
comment 0
In these two lectures we shall discuss how the cavity approach can be used efficiently to study optimization problems with global (topological) constraints and how the same techniques can be generalized to study inverse problems in irreversible dynamical processes. These two classes of problems are formally very similar: they both require an efficient procedure to trace over all trajectories of either auxiliary variables which enforce global constraints, or directly dynamical variables defining...
Topics: Statistical Mechanics, Physics, Physics and Society, Disordered Systems and Neural Networks,...
Source: http://arxiv.org/abs/1409.6531
7
7.0
Jun 30, 2018
06/18
by
Alessandra Campo; Roberto D'Autilia
texts
eye 7
favorite 0
comment 0
In the last decades, mobility planning has been a fundamental issue for the development of cities. A full knowledge of the way a mobility system influences the traffic behavior of a whole city is needed in order to propose plans aligned with the municipalities' goals. In particular, a tool to compare different plans and the respective costs and benefits is necessary to forecast the consequences of the changes in mobility plans. The aim of this research is to show how two different mobility...
Topics: Physics, Physics and Society
Source: http://arxiv.org/abs/1704.05529
5
5.0
Jun 30, 2018
06/18
by
Alessandro Belmonte; Riccardo Di Clemente; Sergey V. Buldyrev
texts
eye 5
favorite 0
comment 0
We characterize the statistical law according to which Italian primary school-size distributes. We find that the school-size can be approximated by a log-normal distribution, with a fat lower tail that collects a large number of very small schools. The upper tail of the school-size distribution decreases exponentially and the growth rates are distributed with a Laplace PDF. These distributions are similar to those observed for firms and are consistent with a Bose-Einstein preferential...
Topics: Physics, Data Analysis, Statistics and Probability, Applications, Physics and Society, Statistics
Source: http://arxiv.org/abs/1407.4718
5
5.0
Jun 29, 2018
06/18
by
Alessandro Corbetta; Chung-min Lee; Roberto Benzi; Adrian Muntean; Federico Toschi
texts
eye 5
favorite 0
comment 0
Understanding and modeling the dynamics of pedestrian crowds can help with designing and increasing the safety of civil facilities. A key feature of crowds is its intrinsic stochasticity, appearing even under very diluted conditions, due to the variability in individual behaviours. Individual stochasticity becomes even more important under densely crowded conditions, since it can be nonlinearly magnified and may lead to potentially dangerous collective behaviours. To understand quantitatively...
Topics: Data Analysis, Statistics and Probability, Physics, Physics and Society
Source: http://arxiv.org/abs/1610.07429
4
4.0
Jun 29, 2018
06/18
by
Alex A. Opoku; Kwame Owusu Edusei; Richard Ansah
texts
eye 4
favorite 0
comment 0
This paper proposes a conditional Curie-Weiss model as a model for opinion formation in a society polarized along two opinions, say opinions 1 and 2. The model comes with interaction strength $\beta>0$ and bais $h$. Here the population in question is divided into three main groups, namely: Group one consisting of individuals who have decided on opinion 1. Let the proportion of this group be given by $s$. Group two consisting of individauls who have chosen opinion 2. Let $r$ be their...
Topics: Physics and Society, Probability, Physics, Mathematics
Source: http://arxiv.org/abs/1608.07363
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
6
6.0
Jun 30, 2018
06/18
by
Alfredo J. Morales; Vaibhav Vavilala; Rosa M. Benito; Yaneer Bar-Yam
texts
eye 6
favorite 0
comment 0
Social media are transforming global communication and coordination. The data derived from social media can reveal patterns of human behavior at all levels and scales of society. Using geolocated Twitter data, we have quantified collective behaviors across multiple scales, ranging from the commutes of individuals, to the daily pulse of 50 major urban areas and global patterns of human coordination. Human activity and mobility patterns manifest the synchrony required for contingency of actions...
Topics: Physics, Computing Research Repository, Physics and Society, Social and Information Networks
Source: http://arxiv.org/abs/1702.03235
5
5.0
Jun 29, 2018
06/18
by
Alfredo J. Morales; Vaibhav Vavilala; Rosa M. Benito; Yaneer Bar-Yam
texts
eye 5
favorite 1
comment 0
Social media are transforming global communication and coordination and provide unprecedented opportunities for studying socio-technical domains. Here we study global dynamical patterns of communication on Twitter across many scales. Underlying the observed patterns is both the diurnal rotation of the earth, day and night, and the synchrony required for contingency of actions between individuals. We find that urban areas show a cyclic contraction and expansion that resembles heartbeats linked...
Topics: Social and Information Networks, Computing Research Repository, Physics, Physics and Society
Source: http://arxiv.org/abs/1602.06219
4
4.0
Jun 30, 2018
06/18
by
Alvaro Corral; Gemma Boleda; Ramon Ferrer-i-Cancho
texts
eye 4
favorite 0
comment 0
Zipf's law is a fundamental paradigm in the statistics of written and spoken natural language as well as in other communication systems. We raise the question of the elementary units for which Zipf's law should hold in the most natural way, studying its validity for plain word forms and for the corresponding lemma forms. In order to have as homogeneous sources as possible, we analyze some of the longest literary texts ever written, comprising four different languages, with different levels of...
Topics: Physics, Data Analysis, Statistics and Probability, Physics and Society, Computation and Language,...
Source: http://arxiv.org/abs/1407.8322
10
10.0
Jun 30, 2018
06/18
by
Alyssa Goodman; Alberto Pepe; Alexander W. Blocker; Christine L. Borgman; Kyle Cranmer; Mercè Crosas; Rosanne Di Stefano; Yolanda Gil; Paul Groth; Margaret Hedstrom; David W. Hogg; Vinay Kashyap; Ashish Mahabal; Aneta Siemiginowska; Aleksandra Slavkovic
texts
eye 10
favorite 0
comment 0
This article offers a short guide to the steps scientists can take to ensure that their data and associated analyses continue to be of value and to be recognized. In just the past few years, hundreds of scholarly papers and reports have been written on questions of data sharing, data provenance, research reproducibility, licensing, attribution, privacy, and more, but our goal here is not to review that literature. Instead, we present a short guide intended for researchers who want to know why...
Topics: Digital Libraries, Instrumentation and Methods for Astrophysics, Computers and Society, Computing...
Source: http://arxiv.org/abs/1401.2134
Boston Public Library Anti-Slavery Collection
98
98
Dec 9, 2014
12/14
by
American Anti-Slavery Society; Rankin, John, 1793-1886; Tappan, Lewis, 1788-1873; Wright, Elizur, 1804-1885; Phelps, Amos A. (Amos Augustus), 1805-1847, recipient
texts
eye 98
favorite 1
comment 0
Printed circular letter, plus signed holograph
Topics: Phelps, Amos A. (Amos Augustus), 1805-1847, Wright, Elizur, 1804-1885, American Anti-Slavery...
Note: Plates engraved by James Poupard
Topic: American Philosophical Society
Princeton Theological Seminary
526
526
Nov 19, 2008
11/08
by
American Tract Society; Romeyn, James. Plea for the evangelical press
texts
eye 526
favorite 0
comment 0
With this is bound: Plea for the evangelical press : a discourse delivered in the Broadway Tabernacle, N. York, before the Board and friends of the American Tract Society, at the opening of their public deliberative meeting, October 25, 1842 / by James Romeyn (New York : Printed for the Society, 1843)
Topics: American Tract Society, Sermons, American
7.5M
7.5M
Feb 4, 2013
02/13
by
American University in Cairo; Rare Books and Special Collections Library
The Egyptian Society, Arts, and Politics collection provides access to local and regional web content relating to Egyptian culture, religion, economics, government, and arts. It contains web documents such as blog posts, Twitter feeds, videos, and news articles relating to social, economic, and political topics in Egypt. The American University in Cairo Rare Books and Special Collections Library began archiving web content for this collection in February 2013.
Topics: Culture, Egypt, Religion, Politics and government, Economics, Arts and society
14
14
Jun 27, 2018
06/18
by
Anamika Chhabra; S. R. S. Iyengar; Poonam Saini; Rajesh Shreedhar Bhat
texts
eye 14
favorite 0
comment 0
Despite a significant improvement in the educational aids in terms of effective teaching-learning process, most of the educational content available to the students is less than optimal in the context of being up-to-date, exhaustive and easy-to-understand. There is a need to iteratively improve the educational material based on the feedback collected from the students' learning experience. This can be achieved by observing the students' interactions with the content, and then having the authors...
Topics: Computers and Society, Computing Research Repository, Human-Computer Interaction
Source: http://arxiv.org/abs/1503.06009
15
15
Jun 26, 2018
06/18
by
Anamika Chhabra; S. R. S. Iyengar; Poonam Saini; Rajesh Shreedhar Bhat; Vijay Kumar
texts
eye 15
favorite 0
comment 0
The phenomenal success of certain crowdsourced online platforms, such as Wikipedia, is accredited to their ability to tap the crowd's potential to collaboratively build knowledge. While it is well known that the crowd's collective wisdom surpasses the cumulative individual expertise, little is understood on the dynamics of knowledge building in a crowdsourced environment. A proper understanding of the dynamics of knowledge building in a crowdsourced environment would enable one in the better...
Topics: Computers and Society, Computing Research Repository
Source: http://arxiv.org/abs/1502.06719
13
13
Jun 26, 2018
06/18
by
Anastasios Noulas; Blake Shaw; Renaud Lambiotte; Cecilia Mascolo
texts
eye 13
favorite 0
comment 0
Understanding the spatial networks formed by the trajectories of mobile users can be beneficial to applications ranging from epidemiology to local search. Despite the potential for impact in a number of fields, several aspects of human mobility networks remain largely unexplored due to the lack of large-scale data at a fine spatiotemporal resolution. Using a longitudinal dataset from the location-based service Foursquare, we perform an empirical analysis of the topological properties of place...
Topics: Social and Information Networks, Physics, Computing Research Repository, Physics and Society
Source: http://arxiv.org/abs/1502.07979
8
8.0
Jun 30, 2018
06/18
by
Anastasios Noulas; Vsevolod Salnikov; Desislava Hristova; Cecilia Mascolo; Renaud Lambiotte
texts
eye 8
favorite 0
comment 0
As modern transportation systems become more complex, there is need for mobile applications that allow travelers to navigate efficiently in cities. In taxi transport the recent proliferation of Uber has introduced new norms including a flexible pricing scheme where journey costs can change rapidly depending on passenger demand and driver supply. To make informed choices on the most appropriate provider for their journeys, travelers need access to knowledge about provider pricing in real time....
Topics: Computers and Society, Computing Research Repository
Source: http://arxiv.org/abs/1701.04208
11
11
Jun 28, 2018
06/18
by
Anastasios Noulas; Vsevolod Salnikov; Renaud Lambiotte; Cecilia Mascolo
texts
eye 11
favorite 0
comment 0
Uber has recently been introducing novel practices in urban taxi transport. Journey prices can change dynamically in almost real time and also vary geographically from one area to another in a city, a strategy known as surge pricing. In this paper, we explore the power of the new generation of open datasets towards understanding the impact of the new disruption technologies that emerge in the area of public transport. With our primary goal being a more transparent economic landscape for urban...
Topics: Computing Research Repository, Computers and Society
Source: http://arxiv.org/abs/1508.07292
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
An Account of a Monster of the Human Species, in Two Letters; One from Baron Reichel to Sir Joseph Banks, Bart. and the Other from Mr. James Anderson to Baron Reichel. Communicated by Sir Joseph Banks, Bart. P. R. S Anderson, J.; Banks, J.; Reichel, T. Philosophical Transactions of the Royal Society of London (1776-1886). 1789-01-01. 79:157–159
Topics: Proceedings of the Royal Society of London, Philosophical Transactions of the Royal Society
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 28, 2018
06/18
by
Andrea Tagarelli; Roberto Interdonato
texts
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Mining the silent members of an online community, also called lurkers, has been recognized as an important problem that accompanies the extensive use of online social networks (OSNs). Existing solutions to the ranking of lurkers can aid understanding the lurking behaviors in an OSN. However, they are limited to use only structural properties of the static network graph, thus ignoring any relevant information concerning the time dimension. Our goal in this work is to push forward research in...
Topics: Social and Information Networks, Physics and Society, Computing Research Repository, Physics
Source: http://arxiv.org/abs/1509.02030
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8.0
Jun 30, 2018
06/18
by
Andrea Tagarelli; Roberto Interdonato
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The massive presence of silent members in online communities, the so-called lurkers, has long attracted the attention of researchers in social science, cognitive psychology, and computer-human interaction. However, the study of lurking phenomena represents an unexplored opportunity of research in data mining, information retrieval and related fields. In this paper, we take a first step towards the formal specification and analysis of lurking in social networks. We address the new problem of...
Topics: Physics, Computing Research Repository, Physics and Society, Social and Information Networks
Source: http://arxiv.org/abs/1409.4695
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6.0
Jun 29, 2018
06/18
by
Andres Gomez-Lievano; Oscar Patterson-Lomba; Ricardo Hausmann
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The prevalence of many urban phenomena changes systematically with population size. We propose a theory that unifies models of economic complexity and cultural evolution to derive urban scaling. The theory accounts for the difference in scaling exponents and average prevalence across phenomena, as well as the difference in the variance within phenomena across cities of similar size. The central ideas are that a number of necessary complementary factors must be simultaneously present for a...
Topics: Nonlinear Sciences, Data Analysis, Statistics and Probability, Statistical Mechanics, Condensed...
Source: http://arxiv.org/abs/1604.07876
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5.0
Jun 29, 2018
06/18
by
Andrew Mellor; Mauro Mobilia; R. K. P. Zia
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We study the dynamics of the out-of-equilibrium nonlinear q-voter model with two types of susceptible voters and zealots, introduced in [EPL 113, 48001 (2016)]. In this model, each individual supports one of two parties and is either a susceptible voter of type $q_1$ or $q_2$, or is an inflexible zealot. At each time step, a $q_i$-susceptible voter ($i = 1,2$) consults a group of $q_i$ neighbors and adopts their opinion if all group members agree, while zealots are inflexible and never change...
Topics: Physics and Society, Populations and Evolution, Statistical Mechanics, Condensed Matter, Physics,...
Source: http://arxiv.org/abs/1610.06092
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6.0
Jun 29, 2018
06/18
by
Andrew Mellor; Mauro Mobilia; R. K. P. Zia
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We introduce an heterogeneous nonlinear $q$-voter model with zealots and two types of susceptible voters, and study its non-equilibrium properties when the population is finite and well mixed. In this two-opinion model, each individual supports one of two parties and is either a zealot or a susceptible voter of type $q_1$ or $q_2$. While here zealots never change their opinion, a $q_i$-susceptible voter ($i=1,2$) consults a group of $q_i$ neighbors at each time step, and adopts their opinion if...
Topics: Physics and Society, Adaptation and Self-Organizing Systems, Populations and Evolution, Nonlinear...
Source: http://arxiv.org/abs/1601.03766
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Jun 28, 2018
06/18
by
Ankit Sharma; Xiaodong Feng; Kartik Singhal; Rui Kuang; Jaideep Srivastava
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Small Group evolution has been of central importance in social sciences and also in the industry for understanding dynamics of team formation. While most of research works studying groups deal at a macro level with evolution of arbitrary size communities, in this paper we restrict ourselves to studying evolution of small group (size $\leq20$) which is governed by contrasting sociological phenomenon. Given a previous history of group collaboration between a set of actors, we address the problem...
Topics: Social and Information Networks, Physics and Society, Computing Research Repository, Physics
Source: http://arxiv.org/abs/1507.03183
