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Displaying 1-20 out of 20 total
The Web Science Observatory
Found in: IEEE Intelligent Systems
By Thanassis Tiropanis,Wendy Hall,Nigel Shadbolt,David De Roure,Noshir Contractor,Jim Hendler
Issue Date:March 2013
pp. 100-104
To understand and enable the evolution of the Web and to help address grand societal challenges, the Web must be observable at scale across space and time. That requires a globally distributed and collaborative Web Observatory.
Towards Next Generation Health Data Exploration: A Data Cube-Based Investigation into Population Statistics for Tobacco
Found in: 2013 46th Hawaii International Conference on System Sciences (HICSS)
By James P. McCusker,Deborah L. McGuinness,Jeongmin Lee,Chavon Thomas,Paul Courtney,Zaria Tatalovich,Noshir Contractor,Glen Morgan,Abdul Shaikh
Issue Date:January 2013
pp. 2725-2732
Increasingly, experts and interested laypeople are turning to the explosion of online data to form and explore hypotheses about relationships between public health intervention strategies and their possible impacts. We have engaged in a multi-year collabor...
Towards Semantically Enabled Next Generation Community Health Information Portals: The PopSciGrid Pilot
Found in: Hawaii International Conference on System Sciences
By Deborah L. McGuinness,Li Ding,Tim Lebo,James P. McCusker,Abdul R. Shaikh,Glen D. Morgan,Gordon Willis,Richard P. Moser,Zaria Tatalovich,Bradford W. Hesse,Noshir Contractor,Paul Courtney
Issue Date:January 2012
pp. 2752-2760
We describe an approach to developing next generation health information portals. This prototype portal was developed to address two complementary goals (1) design and create a site where people can explore potential relationships between selected health-r...
Link Prediction Across Multiple Social Networks
Found in: Data Mining Workshops, International Conference on
By Muhammad Aurangzeb Ahmad, Zoheb Borbora, Jaideep Srivastava, Noshir Contractor
Issue Date:December 2010
pp. 911-918
The problem of link prediction has been studied extensively in literature. There are various versions of the link prediction problem \textit{e.g.,} link existence problem, link removal problem, predicting edge weights over time etc. In this paper we descri...
Dark Gold: Statistical Properties of Clandestine Networks in Massively Multiplayer Online Games
Found in: Social Computing / IEEE International Conference on Privacy, Security, Risk and Trust, 2010 IEEE International Conference on
By Brian Keegan, Muhammad Aurangzeb Ahmed, Dmitri Williams, Jaideep Srivastava, Noshir Contractor
Issue Date:August 2010
pp. 201-208
Gold farming is a set of illicit practices in which players in massively multiplayer online games gather and distribute virtual goods for real money. Using anonymized data from a popular online game to construct networks of characters involved in gold farm...
Social Multimedia Computing
Found in: Computer
By Yonghong Tian, Jaideep Srivastava, Tiejun Huang, Noshir Contractor
Issue Date:August 2010
pp. 27-36
The explosive growth of social multimedia content on the Internet is revolutionizing content distribution and social interaction. It has even led to a new research area, called social multimedia computing.
The Formation of Task-Oriented Groups: Exploring Combat Activities in Online Games
Found in: Computational Science and Engineering, IEEE International Conference on
By Yun Huang, Mengxiao Zhu, Jing Wang, Nishith Pathak, Cuihua Shen, Brian Keegan, Dmitri Williams, Noshir Contractor
Issue Date:August 2009
pp. 122-127
Advanced communication technologies enable strangers to work together on the same tasks or projects in virtual environments. Understanding the formation of task-oriented groups is an important first step to study the dynamics of team collaboration. In this...
Virtually There: Exploring Proximity and Homophily in a Virtual World
Found in: Computational Science and Engineering, IEEE International Conference on
By Yun Huang, Cuihua Shen, Dmitri Williams, Noshir Contractor
Issue Date:August 2009
pp. 354-359
Virtual space eliminates the constraints of physical distances on communication and interaction. In this study, we examine the impact of offline proximity and homophily of players on their online interactions in EverQuest II. The results show that spatial ...
The Social Behaviors of Experts in Massive Multiplayer Online Role-Playing Games
Found in: Computational Science and Engineering, IEEE International Conference on
By David Huffaker, Jing (Annie) Wang, Jeffrey Treem, Muhammad A. Ahmad, Lindsay Fullerton, Dmitri Williams, Marshall Scott Poole, Noshir Contractor
Issue Date:August 2009
pp. 326-331
We examine the social behaviors of game experts in Everquest II, a popular massive multiplayer online role-playing game (MMO). We rely on Exponential Random Graph Models (ERGM) to examine the anonymous privacy-protected social networks of 1,457 players ove...
Mining for Gold Farmers: Automatic Detection of Deviant Players in MMOGs
Found in: Computational Science and Engineering, IEEE International Conference on
By Muhammad Aurangzeb Ahmad, Brian Keegan, Jaideep Srivastava, Dmitri Williams, Noshir Contractor
Issue Date:August 2009
pp. 340-345
Gold farming refers to the illicit practice of gathering and selling virtual goods in online games for real money. Although around one million gold farmers engage in gold farming related activities, to date a systematic study of identifying gold farmers ha...
JetStream: Achieving Predictable Gossip Dissemination by Leveraging Social Network Principles
Found in: Network Computing and Applications, IEEE International Symposium on
By Jay A. Patel, Indranil Gupta, Noshir Contractor
Issue Date:July 2006
pp. 32-39
Gossip protocols provide probabilistic reliability and scalability, but their inherent randomness may lead to high variation in number of messages that are received at different nodes. This paper presents techniques that leverage simple social network prin...
Exploring Twitter networks in parallel computing environments
Found in: Proceedings of the Conference on Extreme Science and Engineering Discovery Environment: Gateway to Discovery (XSEDE '13)
By Bo Xu, Noshir Contractor, Yun Huang
Issue Date:July 2013
pp. 1-5
Millions of users follow each other on Twitter and form a large and complex network. The size of the network creates statistical and computational challenges on exploring and examining individual behavior on Twitter. Using a sample of 697,628 Korean Twitte...
Structures of broken ties: exploring unfollow behavior on twitter
Found in: Proceedings of the 2013 conference on Computer supported cooperative work (CSCW '13)
By Bo Xu, Haewoon Kwak, Noshir Contractor, Yun Huang
Issue Date:February 2013
pp. 871-876
This study investigates unfollow behavior in Twitter, i.e. people removing others from their Twitter following lists. Considering the interdependency and dynamics of unfollow decisions, we use actor-oriented modeling (SIENA) to examine the impacts of recip...
Functional or social?: exploring teams in online games
Found in: Proceedings of the 2013 conference on Computer supported cooperative work (CSCW '13)
By Nicholas Bennett, Noshir Contractor, Wenyue Ye, Yun Huang
Issue Date:February 2013
pp. 399-408
Team collaboration in multi-player online games provides opportunities for players to interact with each other. Facilitating teams has become one of the main design principles to increase social activities. However, there is no research evidence that colla...
Do editors or articles drive collaboration?: multilevel statistical network analysis of wikipedia coauthorship
Found in: Proceedings of the ACM 2012 conference on Computer Supported Cooperative Work (CSCW '12)
By Brian Keegan, Darren Gergle, Noshir Contractor
Issue Date:February 2012
pp. 427-436
Prior scholarship on Wikipedia's collaboration processes has examined the properties of either editors or articles, but not the interactions between both. We analyze the coauthorship network of Wikipedia articles about breaking news demanding intense coord...
From disasters to WOW: using web science to understand and enable 21st century multidimensional networks
Found in: Proceedings of the 22nd ACM conference on Hypertext and hypermedia (HT '11)
By Noshir Contractor
Issue Date:June 2011
pp. 1-2
Recent advances in Web Science provide comprehensive digital traces of social actions, interactions, and transactions. These data provide an unprecedented exploratorium to model the socio-technical motivations for creating, maintaining, dissolving, and rec...
What can gold farmers teach us about criminal networks?
Found in: XRDS: Crossroads, The ACM Magazine for Students
By Brian Keegan, Dmitri Williams, Jaideep Srivastava, Muhammad Aurangzeb Ahmad, Noshir Contractor
Issue Date:March 2011
pp. 11-15
By observing how covert financial networks operate in online games like World of Warcraft, we can learn about how they might function offline.
MobileHCI'10 workshop summary: social mobile web
Found in: Proceedings of the 12th international conference on Human computer interaction with mobile devices and services (MobileHCI '10)
By Barry Smyth, Josep M. Pujol, Karen Church, Noshir Contractor
Issue Date:September 2010
pp. 509-512
The mobile space is evolving at an astonishing rate with over 4.1 billion subscribers in existence. The world is also witnessing an explosion in social web services with more users seeking novel ways of interacting with friends and family. We are intereste...
Is a friend a friend?: investigating the structure of friendship networks in virtual worlds
Found in: Proceedings of the 28th of the international conference extended abstracts on Human factors in computing systems (CHI EA '10)
By Anne Van Devender, Brooke Foucault Welles, Noshir Contractor
Issue Date:April 2010
pp. 4027-4032
In this paper, we examine online friendships at a network level. We focus on three structural signatures: network size, balance (triangles), and age homophily in the friendship ego-networks of 30 users of the virtual world Second Life. In relation to previ...
Cyberinfrastructure for public health
Found in: Proceedings of the 2006 national conference on Digital government research (dg.o '06)
By Bradford W. Hesse, Noshir Contractor
Issue Date:May 2006
pp. 9-10
Great strides were made during the 20th Century to improve the diagnosis and treatment of many common diseases, but those strides are not enough. Millions die each year from diseases that are chronic and complex. To meet the challenge of combating these co...