Publications

Journal Articles:

Huang, Y., Shen, C., and Contractor, N. (2013) Distance Matters: Exploring Proximity and Homophily in Virtual World Networks, Decision Support Systems, forthcoming.

Ahmad, M., Borbora, Z., Srivastava, J., & Contractor, N. (2012). Love all, trust a few: Link prediction for trust and psycho-social factors in MMOs. Social Computing, Behavioral-Cultural Modeling and Prediction, 123-130.

Murase, T., Doty, D., Wax, A., DeChurch, L. A., & Contractor, N. S. (2012). Teams are changing: Time to “think networks”. Industrial and Organizational Psychology, 5(1), 41-44. doi: 10.1111/j.1754-9434.2011.01402.x

Ahmad, M. A., Sullivan, S., Keegan, B., Williams, D., Srivastava, J., & Contractor, N. (2011). Illicit bits: Detecting and analyzing contraband networks in massively multiplayer online games. Exchange, 2, 3.

Contractor, N., Monge, P. R., & Leonardi, P. (2011). Multidimensional networks and the dynamics of sociomateriality: Bringing technology inside the network. International Journal of Communication, 5, 682-720.

DeChurch, L. A., Murase, T., Wax, A., & Contractor, N. S. (2011). The origins and consequences of relational pluralism in multiteam systems. Academy of Management Journal.

Falk-Krzesinski, H. J., Contractor, N., Fiore, S. M., Hall, K. L., Kane, C., Keyton, J., Klein, J. T., Spring, B., Stokols, D., & Trochim, W. (2011). Mapping a research agenda for the science of team science. Research Evaluation, 20(2), 143-156. doi: 10.3152/095820211×12941371876580

Su, C., & Contractor, N. (2011). A multidimensional network approach to studying team members’ information seeking from human and digital knowledge sources in consulting firms. Journal of the American Society for Information Science and Technology, 62(7), 1257-1275. doi: 10.1002/asi.21526

Wang, J., Huffaker, D. A., Treem, J. W., Fullerton, L., Ahmad, M. A., Williams, D., Poole, M. S., & Contractor, N. (2011). Focused on the prize: Characteristics of experts in massive multiplayer online games. First Monday, 16(8-1).

Whitbred, R., Fonti, F., Steglich, C., & Contractor, N. (2011). From microactions to macrostructure and back: A structurational approach to the evolution of organizational networks. Human Communication Research, 37(3), 404-433. doi: 10.1111/j.1468-2958.2011.01404.x

Williams, D., Contractor, N., Poole, M. S., Srivastava, J., & Cai, D. (2011). The Virtual Worlds Exploratorium: Using large-scale data and computational techniques for communication research. Communication Methods and Measures, 5(2), 163-180. doi: 10.1080/19312458.2011.568373

Xia, M., Huang, Y., Duan, W., & Whinston, A. B. (2009). Ballot box communication in online communities. Communications of the ACM, 52(9), 138-142. doi: http://doi.acm.org/10.1145/1562164.1562199.

Zhu, M., Huang, Y., & Contractor, N. S. (2011). Motivations for assembling into project teams.

Börner, K., Contractor, N., Falk-Krzesinski, H. J., Fiore, S. M., Hall, K. L., Keyton, J., Spring, B., Stokols, D., Trochim, W., & Uzzi, B. (2010). A multi-level systems perspective for the science of team science. Science Translational Medicine, 2(49), cm24. doi: 10.1126/scitranslmed.3001399

Falk-Krzesinski, H. J., Börner, K., Contractor, N., Fiore, S. M., Hall, K. L., Keyton, J., Spring, B., Stokols, D., Trochim, W., & Uzzi, B. (2010). Advancing the science of team science. Clinical and Translational Sciences, 3(5), 263-266. doi: 10.1111/j.1752-8062.2010.00223.x

Mahmassani, H. S., Chen, R. B., Huang, Y., Williams, D., & Contractor, N. (2010). Time to play? Transportation Research Record: Journal of the Transportation Research Board, 2157, 129-137. doi: 10.3141/2157-16

Su, C., Huang, M., & Contractor, N. (2010). Understanding the structures, antecedents and outcomes of organisational learning and knowledge transfer: A multi-theoretical and multilevel network analysis. European Journal of International Management, 4(6), 576-601.

Tian, Y., Srivastava, J., Huang, T., & Contractor, N. (2010). Social multimedia computing. IEEE Computer Society, 43(8), 27-36.

Yuan, Y. C., Fulk, J., Monge, P. R., & Contractor, N. (2010). Expertise directory development, shared task interdependence, and strength of communication network ties as multilevel predictors of expertise exchange in transactive memory work group systems. Communication Research, 37(1), 20-47. doi: 10.1177/009365020351469

Castronova, T., Williams, D., Shen, C., Ratan, R., Xiong, L., Huang, Y., & Keegan, B. (2009). As real as real? Macroeconomic behavior in a large-scale virtual world. New Media & Society, 11(5).

Contractor, N. (2009). The emergence of multidimensional networks. Journal of Computer-Mediated Communication, 14(3), 743-747. doi: 10.1111/j.1083-6101.2009.01465.x

Lazer, D., Pentland, A., Adamic, L., Aral, S., Barabasi, A. L., Brewer, D., Christakis, N., Contractor, N., Fowler, J., Gutmann, M., Jebara, T., King, G., Macy, M., Roy, D., & Van Alstyne, M. (2009). Computational social science. Science, 323(5915), 721-723. doi: 10.1126/science.1167742

Varda, D. M., Forgette, R., Banks, D., & Contractor, N. (2008). Social network methodology in the study of disasters: Issues and insights prompted by post-Katrina research. Population Research and Policy Review, 28(1), 11-29. doi: 10.1007/s11113-008-9110-9

Contractor, N., Wasserman, S., & Faust, K. (2006). Testing multitheoretical, multilevel hypotheses about organizational networks: An analytic framework and empirical example. The Academy of Management Review, 31(3), 681-703.

Palazzolo, E. T., Serb, D. A., She, Y., Su, C., & Contractor, N. S. (2006). Coevolution of communication and knowledge networks in transactive memory systems: Using computational models for theoretical development. Communication Theory, 16(2), 223-250. doi: 10.1111/j.1468-2885.2006.00269.x

Katz, N., Lazer, D., Arrow, H., & Contractor, N. (2004). Network theory and small groups. Small Group Research, 35(3), 307-332. doi: 10.1177/1046496404264941

Conference Papers & Proceedings

Huang, Y., Ye, W., Bennett, N., and Contractor, N., (2013) Functional or Social? Exploring Teams in Online Games, in Proceedings of the 16th ACM Conference on Computer Supported Cooperative Work (CSCW 2013), San Antonio, Texas, USA, February 23-27, 2013. ACM 2013.

Xu, B., Huang, Y., Kwak, H., and Contractor, N. (2013) Structure of Broken Ties: Exploring Unfollow Behavior on Twitter, in Proceedings of the 16th ACM Conference on Computer Supported Cooperative Work (CSCW 2013), San Antonio, Texas, USA, February 23-27, 2013. ACM 2013.

Bowser, G., Contractor, N., Scharl, A., Gretzel, U., Madden, A., Davis, E., & Brown, M. (2012). A tale of two networks: Crowd sourcing science and policy issues for women in sustainable development. Paper presented at the Gordon Research Conference: Science and Technology policy in global context, Waterville Vally, New Hampshire.

Lungeanu, A., Huang, Y., and Contractor, N. (2012) A network perspective on success in collaboration: Stop citing me for our own good?, 2012 Academy of Management Annual Meeting. Boston, Massachusetts. August 3-7, 2012.

Chang, C., Lungeanu, A., Keegan, B., Gilborne, J., & Contractor, N. (2012). Multidimensional networks in crowdsourced collaboration. Paper presented at the Sunbelt XXXII Conference, Redondo Beach, CA.

Contractor, N., DeChurch, L., Murase, T., & Wax, A. (2012). Origins and consequences of relational pluralism in multiteam systems. Paper presented at the Annual convention of the International Communication Association, Phoenix, AZ.

Contractor, N., Zhu, M., & Wasserman, S. (2012). Correspondence analysis in multilevel networks. Paper presented at the Multilevel Social Networks Symposium, organized by the Multilevel Network Modeling Group, Manchester, UK. http://www.mnmg.co.uk/MNMGConference.html

Huang, Y., Zhang, C., Fazel-Zarandi, M., Devlin, H., Lungeanu, A., Wasserman, S., & Contractor, N. (2012). Comparing efficacy of link prediction models for expert recommender systems. Paper presented at the Sunbelt XXXII conference, Redondo Beach, CA.

Keegan, B., Gergle, D., & Contractor, N. (2012). Do editors or articles drive collaboration? Multilevel statistical network analysis of Wikipedia coauthorship. Paper presented at the CSCW’12 conference, Seattle, Washington.

Lungeanu, A., Huang, Y., & Contractor, N. (2012). A network perspective on success in collaboration: Stop citing me for your own good? Paper presented at the Sunbelt XXXII conference, Redondo Beach, CA.

Lungeanu, A., Murase, M., Carter, D., & Contractor, N. (2012). A hypergraph approach to understanding the assembly of scientific research teams. Paper presented at the Sunbelt XXXII conference, Redondo Beach, CA.

Pieterson, W., & Contractor, N. (2012). Web Science in the SONIC research group. Poster presented at World Wide Web 2012, Lyon, France.

Pieterson, W., Johnson, Z., & Contractor, N. (2012). Using the all new C-IKNOW to collect survey network data and explore these networks. Workshop presented at the Sunbelt XXXII conference, Redondo Beach, CA.

Vashevko, A., Chang, C., & Contractor, N. (2012). Assembling teams for success: How research teams win funding. Paper presented at the Sunbelt XXXII conference, Redondo Beach, CA.

Whalen, Ryan (2012). Modeling annual Supreme Court influence: The role of citation practices and judicial tenure in determining precedent network growth. In A Evsukoff, M.C. Gonzalez and R. Menezes (eds.) Complex Networks. Berlin, Springer Verlag. Series: “Studies in Computational Ingelligence.”

Zhu, M., Lungeanu, A., & Contractor, N. (2012). Growth of new scientific fields: The case of oncofertility. Paper presented at the Sunbelt XXXII conference, Redondo Beach, CA.

Zhu, M., Wax, A., DeChurch, L., & Contractor, N. (2012). Teamwork at the hyper-edge: Impact of team hyperedge structures on performance. Paper presented at the Sunbelt XXXII conference, Redondo Beach, CA.

Ahmad, M. A., Keegan, B., Sullivan, S., Williams, D., Srivastava, J., & Contractor, N. (2011). Towards analyzing adversarial behavior in clandestine networks. Paper presented at the Association for the Advancement of Artificial Intelligence Workshop.

Ahmad, M. A., Keegan, B., Williams, D., Srivastava, J., & Contractor, N. (2011). Trust amongst rogues? A hypergraph approach for comparing clandestine trust networks in MMOGs. Proceedings of the 5th International AAAI Conference on Weblogs and Social Media.

Contractor, N., Lungeanu, A., & Huang, Y. (2011). Understanding the assembly of interdisciplinary scientific teams. Paper presented at the Innovation, Organizations, and Society: A Lambert Family Communication Conference, University of Chicago. Chicago, IL.

Ding, L., Whalen, R., McGuinness, D. L., & Contractor, N. (2011). Government agency network discovery via hyperlinks and datalinks. Paper presented at WebSci 2011, Koblenz, Germany.

Fazel-Zarandi, M., Devlin, H. J., Huang, Y., & Contractor, N. (2011). Expert recommendation based on social drivers, social network analysis, and semantic data representation. Paper presented at the 2nd International Workshop on Information Heterogeneity and Fusion in Recommender Systems.

Foucault Welles, B., & Contractor, N. (2011). From strangers to friends online: A mixed-methods investigation of friendship formation on the internet. Paper presented at the National Communication Association 97th Annual Convention, New Orleans, LA.

Foucault Welles, B., Shim, K. J., Ratan, R., Kennedy, T. L. M., Contractor, N., Srivastava, J., & Williams, D. (2011). Disambiguating age, gender and skill: An exploration of online chat behaviors among MMOG players. Paper presented at the International Sunbelt Social Network Conference (XXXI), St. Pete Beach, FL, USA.

Huang, M., Margolin, D., Ognyanova, K., Huang, Y., & Contractor, N. (2011). Understanding and enabling network dynamics in virtual communities. Paper presented at the Symposium on “Dynamics of Virtual Organizations” at the annual meeting of the Academy of Management, San Antonio, TX.

Keegan, B. (2011). Breaking news, breaking planes, and breaking hearts: Psycholinguistic dynamics and sensemaking in collaborative accounts of catastrophe. Paper presented at the International Communication Association Conference, Boston, MA.

Keegan, B., Ahmad, M., Williams, D., Srivastava, J., & Contractor, N. (2011). Mapping gold farming back to offline clandestine organizations: Methodological, theoretical, and ethical challenges. Paper presented at the Game Behind the Game Conference, New Brunswick, NJ.

Keegan, B., Ahmad, M. A., Williams, D., Srivastava, J., & Contractor, N. (2011). Using P*/ERGMs to map online clandestine behavior to offline criminal activity. Paper presented at the Sunbelt XXXI Conference, St. Petersburg, FL.

Keegan, B., Ahmed, M. A., Williams, D., Srivastava, J., & Contractor, N. (2011). Sic transit gloria mundi virtuali? Promise and peril in the computational social science of clandestine organizing. Paper presented at the WebSci ’11 conference, Koblenz, Germany.

Keegan, B., Gergle, D., & Contractor, N. (2011). Hot off the wiki: Dynamics, practices, and structures in Wikipedia’s coverage of the Tōhoku catastrophes.

Keegan, B., Gergle, D., & Contractor, N. (2011). A multi-theoretical, multi-level model of high tempo collaboration in an online community. Paper presented at the INSNA Sunbelt XXXI Conference, Tampa, FL.

McGuinness, D. L., Shaikh, A. R., Moser, R., Hesse, B. W., Morgan, G. D., Augustson, E. M., Hunt, Y., Tatalovich, Z., Willis, G., Blake, K., Courtney, P., Finney, L., Sanders, A., Ding, L., Lebo, T., McCusker, J., Contractor, N., Huang, Y., Yao, Y., & Devlin, H. (2011). A semantically-enabled community health portal for cancer prevention and control. Paper presented at the Web Science Conference 2011, Koblenz, Germany.

Merrill, N., Foucault Welles, B., & Contractor, N. (2011). Virtual group commitment: An examination of factors leading to group donations in Second Life. Paper presented at the National Communication Association 97th Annual Convention, New Orleans, LA.

Whalen, R. (2011). The Structure of Federal eGovernment: Using hyperlinks to analyze the .gov domain. Paper presented at the 4th Annual Political Networks Conference, University of Michigan, Ann Arbor, MI.

Young, L., & Contractor, N. (2011). Individual, tie, and network level predictors of access to social capital: Applying multi-level analysis to the study of ego-network capital. Paper presented at the International Sunbelt Social Network Conference (XXXI), St. Petersburg, FL.

Young, L., & Pieterson, W. (2011). Government to citizen communication in a networked world: Integrating network and communication theories to inform strategic communication. Paper presented at the International Communication Association Conference, Boston, MA.

Young, L., & Pieterson, W. (2011). Strategic communication in a networked world. Paper presented at the 2011 International Communication Association Strategic Communication Pre-conference, Boston, MA.

Ahmad, M. A., Borbora, Z., Srivastava, J., & Contractor, N. (2010). Link prediction across multiple social networks. Paper presented at the 2010 IEEE International Conference on Data Mining Workshops.

Chen, R. B., Mahmassani, H. S., Yun, H., Contractor, N., & Williams, D. (2010). Travel and activity behaviors in virtual world environments. Paper presented at the 89th Annual Meeting of the Transportation Research Board (TRB2010), Washington, D.C. Poster retrieved from http://trid.trb.org/view.aspx?id=911402

Church, K., Pujol, J. M., Smyth, B., & Contractor, N. (2010). MobileHCI’10 workshop summary: Social mobile web. Paper presented at the MobileHCI’10, Lisbon, Portugal.

Contractor, N. (2010). Understanding and enabling online social networks to support healthy behaviors. Paper presented at the Third International Conference on Social Computing, Behavioral Modeling, and Prediction, Bethesda, MD.

Foucault Welles, B., Van Devender, A., & Contractor, N. (2010). Is a “friend” a friend?: Comparing the structure of online and offline friendship networks. Paper presented at the Sunbelt XXX: International Sunbelt Social Network Conference, Riva del Garda, Trento, Italy.

Foucault Welles, B., Van Devender, A., & Contractor, N. (2010). Is a “friend” a friend?: investigating the structure of friendship networks in virtual worlds. Paper presented at the 28th International Conference on Human Factors in Computing Systems (CHI), Atlanta, GA.

Huang, M., Barbour, J., Su, C., & Contractor, N. S. (2010). Why would you save your files in a group folder? A multilevel analysis of contextual influences on information provision to work group digital databases. Paper presented at the International Communication Association 60th Annual Conference, Singapore.

Huang, M., & Contractor, N. (2010). The impacts of co-authorship networks and citation networks in “team science”. Paper presented at the International Network of Group Research.

Huang, M., Contractor, N., Huang, Y., Margolin, D., Ognyanova, K., & Shen, C. (2010). The effects of diversity and repeat collaboration on team performance in distributed nanoscientist teams. Paper presented at the Academy of Management Annual Conference, Montreal, Canada. http://meetings.aomonline.org/2010/

Huang, M., Contractor, N., Huang, Y., Margolin, D., Ognyanova, K., & Shen, C. (2010). Size, diversity, & beyond: A mediated model of team composition and performance in “team science”. Paper presented at the International Communication Association Annual Conference, Singapore.

Huang, Y., Chen, R. B., Mahmassani, H. S., & Contractor, N. (2010). Encounter in virtual space. Paper presented at the INFORMS Annual Meeting 2010, Austin, TX.

Keegan, B., Ahmed, M. A., Williams, D., Srivastava, J., & Contractor, N. (2010). Dark gold: Statistical properties of clandestine networks in massively multiplayer online games.

Mahmassani, H. S., Chen, R. B., Huang, Y., Contractor, N., & Williams, D. (2010). Time to play? Activity engagement in multiplayer online role-playing games. Paper presented at the 89th Annual Meeting of the Transportation Research Board (TRB2010), Washington, D.C.

Margolin, D., Ognyanova, K., Shen, C., Huang, M., Huang, Y., & Contractor, N. (2010). Team assembly and scientific collaboration on nanoHub. Paper presented at the INSNA Sunbelt conference, Riva del Garda, Trento, Italy.

Pieterson, W., Young, L., Hsieh, Y., Wang, H., & Contractor, N. (2010). Networks in citizen-government interaction: Exploring how social networks affect information search behavior. Paper presented at the annual International Professional Communication Conference (IPCC), University of Twente, Netherlands.

You, W., Huang, Y., & Xia, M. (2010). Content popularity in a peer-to-peer community: A network perspective. Paper presented at the 9th Workshop on e-Business (WeB’10), St. Louis, MO.

Zhu, M., Contractor, N., & Iravani, S. (2010). Assembly of successful teams: Insights from the study of MMORPGs. Paper presented at the INFORMS Annual Meeting 2010, Austin, TX.

Ahmad, M. A., Keegan, B., Srivastava, J., Williams, D., & Contractor, N. (2009). Mining for gold farmers: Automatic detection of deviant players in MMOGS. Paper presented at the Symposium on Social Intelligence and Networking (SIN-09), Vancouver, Canada.

Castronova, E., Williams, D., Huang, Y., Shen, C., Keegan, B., Ratan, R. A., Xiong, L., & Contractor, N. (2009). As real as real? Macroeconomic behavior in a large-scale virtual world. Paper presented at the 59th Annual Conference of the International Communication Association, Chicago, IL.

Contractor, N. (May 17-20, 2009). Understanding & enabling networks in digital government. Paper presented at the 10th Annual International Conference on Digital Government Research: Social Networks: Making Connections between Citizens, Data and Government, Puebla, Mexico.

Foucault, B., & Markov, A. (2009). Teens and communication technology: The co-construction of privacy and friendship in mediated communication. Paper presented at the International Communication Association 2009 Annual Meeting (ICA ’09), Chicago, IL.

Foucault, B., Zhu, M., Huang, Y., Atrash, Z., & Contractor, N. (2009). Will you be my friend? An exploration of adolescent friendship formation online in Teen Second Life. Paper presented at the 59th Annual Conference of the International Communication Association, Chicago, IL.

Huang, Y., Shen, C., & Contractor, N. (2009). The role of proximity and homophily in virtual world networks. Paper presented at the Sunbelt XXIX: International Sunbelt Social Network Conference, San Diego, CA.

Huang, Y., Shen, C., & Contractor, N. (2009). Virtually there: Exploring proximity and homophily in a virtual world. Paper presented at the Fourth Annual INGRoup Conference, Colorado Springs, CO.

Huang, Y., Shen, C., Williams, D., & Contractor, N. (2009). Virtually there: Exploring proximity and homophily in a virtual world. Paper presented at the Symposium on Social Intelligence and Networking (SIN-09), Vancouver, Canada.

Huang, Y., Yao, Y., & Contractor, N. (2009). Using p*/ERGM techniques to implement a multitheoretical multilevel network recommender system. Paper presented at the Sunbelt XXIX: International Sunbelt Social Network Conference, San Diego, CA.

Huang, Y., Zhu, M., Keegan, B., Wang, J., Shen, C., Pathak, N., & Contractor, N. (2009). The formation of combat groups in online games. Paper presented at the Fourth Annual INGRoup Conference, Colorado Springs, CO.

Huang, Y., Zhu, M., Wang, J., Pathak, N., Shen, C., Keegan, B., Williams, D., & Contractor, N. (2009). The formation of task-oriented groups: Exploring combat activities in online games. Paper presented at the 2009 IEEE International Conference on Social Computing (SocialCom-09), Vancouver, Canada.

Huffaker, D., Wang, J., Treem, J., Ahmad, M. A., Fullerton, L., Williams, D., Poole, M. S., & Contractor, N. (2009). The social behaviors of experts in massive multiplayer online role-playing games.

Ratan, R., Chung, J. E., Shen, C., Williams, D., Foucault, B., & Poole, M. S. (2009). Schmoozing and smiting: Trust and communication patterns in an MMO. Paper presented at the 59th Annual Conference of the International Communication Association (ICA2009), Chicago, IL, USA.

Su, C., Huang, M., & Contractor, N. S. (2009). Understanding the structures, antecedents, and outcomes of organizational learning and knowledge transfer: A multi-theoretical and multilevel network analysis. Paper presented at the International Communication Association 59th Annual Conference, Chicago, IL.

Wang, J., & Contractor, N. (2009). Knowledge seeking and provision in work teams across multiple knowledge areas: A network formulation to test and extend transactive memory theory. Paper presented at the Fourth Annual INGRoup Conference, Colorado Springs, CO.

Wang, J., Huffaker, D., Treem, J., Fullerton, L., Ahmad, M., Williams, D., Poole, M. S., & Contractor, N. (2009). Focused on the prize: Characteristics of experts in virtual worlds. Paper presented at the 59th Annual International Communications Association Conference, Chicago, IL.

Yuan, Y. C., Fulk, J., Monge, P., & Contractor, N. (2009). Transactive memory systems in work teams: A multilevel investigation of the impact of expertise directory development on expertise exchange. Paper presented at the International Conference on Administrative Development: Towards Excellence in Public Sector Performance, Riyadh, Kingdom of Saudi Arabia.

Zhu, M., & Contractor, N. (2009). Work and life: The role of networks in the emergency response organizations. Paper presented at the 59th Annual Conference of the International Communication Association, Chicago, IL.

Huang, Y., Contractor, N., & Yao, Y. (2008). CI-KNOW: Recommendation based on social networks. Paper presented at the Proceedings of the 2008 international conference on Digital government research, Montreal, Canada.

Huang, Y., Yao, Y., & Contractor, N. (2008). Cyberinfrastructure Knowledge Networks on the Web (CIKNOW). Paper presented at the Sunbelt XXVIII: International Sunbelt Social Network Conference, St. Pete Beach, FL.

Whitbred, R., Fonti, F., Contractor, N., & Steglich, C. (2008). From microactions to macrostructure and back: A structurational approach to the evolution of organizational networks. Paper presented at the 94th Annual Meeting of the National Communication Association, San Diego, CA.

Zhu, M., & Contractor, N. (2008). The role of networks in the emergency response organizations. Paper presented at the INFORMS Annual Meeting 2008, Washington, D.C.

Contractor, N., & Green, H. D. (2007). Cyberinfrastructure knowledge networks on the web a recommender system for locating resources in a knowledge network. Paper presented at the 8th Annual International Digital Government Research Conference.

Steinfield, C., Pentland, B. T., Ackerman, M., & Contractor, N. (2007). Communities and technologies 2007. Paper presented at the Third Communities and Technologies Conference, Michigan State University.

Contractor, N. (2006). Multi-theoretical multilevel MTML models to study the emergence of networks. Paper presented at the NetSci 2006 conference, Bloomington, IN.

Contractor, N., Butts, C., Harper, S., & Auvil, L. (2006). Mapping and analyzing emergent multi-organizational networks in the Hurricane Katrina response. Paper presented at the NSF Conference on “Methods for the Study of Social Networks during Disasters” Crystal City, VA.

Contractor, N., & Hesse, B. W. (2006). Cyberinfrastructure for public health. Paper presented at the 2006 International Conference on Digital Government Research, San Diego, California.

Green, H., Contractor, N., & Yao, Y. (2006). CI-KNOW: Cyberinfrastructure Knowledge Networks on the Web. A social network enabled recommender system for locating resources in cyberinfrastructures. Paper presented at the American Geophysical Union Fall Meeting, San Francisco, CA.

McClure, H., Wali, A., Severson, R., Green, H., & Contractor, N. (2006). Ethnography and social network analysis as complimentary methodologies for the study of artistic, cultural and networking practices among recent Mexican immigrants in the Chicago metropolitan area. Paper presented at the Annual Social Network Sunbelt Conference, Vancouver, Canada.

Minsker, B., Myers, J., Marikos, M., Wentling, T., Downey, S., Liu, Y., Bajcsy, P., Kooper, R., Marini, L., & Contractor, N. (2006). NCSA environmental cyberinfrastructure demonstration project: Creating cyberenvironments for environmental engineering and hydrological science communities.

Minsker, B., Myers, J., Marikos, M., Wentling, T., Downey, S., Liu, Y., Bajcsy, P., Kooper, R., Marini, L., Contractor, N., Green, H., Yao, Y., & Futrelle, J. (2006). Environmental cyberinfrastructure demonstration project: Creating cyberenvironments for environmental engineering and hydrological science communities. Paper presented at the Supercomputing 2006 (SC 06), Tampa, FL.

Ostergaard, J., Wali, A., Contractor, N., Green, H. D., Mason, S., Severson, R., & McClure, H. (2006). Artistic, cultural and social network assets of recent Mexican immigrants in Chicago. Paper presented at the Annual meeting of the Association of Collegiate Schools of Planning, Fort Worth, TX.

Palazzolo, E., Leenders, R., & Contractor, N. (2006). Multilevel modeling of retrieval behaviors in transactive memory networks. Paper presented at the Annual Social Network Sunbelt Conference, Vancouver, Canada.

Patel, J. A., Indranil, G., & Contractor, N. (2006, 24-26 July 2006). JetStream: Achieving predictable gossip dissemination by leveraging social network principles. Paper presented at the Fifth IEEE International Symposium on Network Computing and Applications.

Pathak, N., Mane, S., Srivastava, J., & Contractor, N. S. (2006). Knowledge perception analysis in a social network. Paper presented at the Workshop on Link Analysis, Counterterrorism and Security at SIAM Conference on Data Mining.

Wotal, B., Green, H., Williams, D., & Contractor, N. (2006). WoW!: The dynamics of knowledge networks in massively multiplayer online role playing games (MMORPG). Paper presented at the Annual Social Network Sunbelt Conference, Vancouver, Canada.

Contractor, N., & Leischow, S. (2005). Cyberinfrastructure for public health dg. o2005 birds of a feather session. Paper presented at the 2005 National Conference on Digital Government Research, Atlanta, Georgia.

Contractor, N., Brandon, D., Huang, M., Palazzolo, E. T., Steinley, D., Su, C., Suri, V. R., Swarbrick, S. A., Templin, J., & Wasserman, S. (2004). Extensions to information retrieval in transactive memory systems. Paper presented at the Annual Convention of the National Communication Association, Chicago, IL.

Book Sections:

Whalen, R. (2013). Modeling annual Supreme Court influence: The role of citation practices and judicial tenure in determining precedent network growth. In A. Evsukoff, M. C. Gonzalez & R. Menezes (Eds.), Complex Networks (pp. 169-176): Springer Berlin Heidelberg.

Margolin, D., Ognyanova, K., Huang, M., Huang, Y., & Contractor, N. (2012). Team formation and performance on nanoHub: A network selection challenge in scientific communities. In B. Vedres & M. Scotti (Eds.), Networks in Social Policy Problems (pp. 80-100). Cambridge, UK: Cambridge University Press.

Contractor, N., & Su, C. (2011). Understanding groups from a network perspective. In A. Hollingshead & M. S. Poole (Eds.), Research Methods for Studying Groups and Teams: A Guide to Approaches, Tools, and Technologies (pp. 284-310). New York: Taylor & Francis/Routledge.

Poole, M. S., & Contractor, N. (2011). Conceptualizing the multiteam system as an ecosystem of networked groups. In S. J. Zaccaro, M. A. Marks & L. A. DeChurch (Eds.), Multiteam Systems: An Organization Form for Dynamic and Complex Environments (pp. 193-224): Routledge.

Pathak, N., Mane, S., Srivastava, J., Contractor, N., Poole, S., & Williams, D. (2008). Analysis of social networks and group dynamics from electronic communication Next Generation of Data Mining (pp. 377-397).

Contractor, N. (2007). Computers-user interaction. In Donsbach (Ed.), The International Encyclopedia of Communication. Malden, MA: Blackwell.

Hollingshead, A.B., & Contractor, N.S. (2007). New media and small group organizing. In L. A. Lievrouw & S. Livingstone (Eds.), Handbook of New Media (Updated Student Edition. pp. 114-133). London: Sage Publications Ltd.

Provan, K., & Contractor, N. (2007). Understanding and managing stakeholder networks Greater than the Sum: Systems Thinking in Tobacco Control. Tobacco Control Monograph No. 18. Bethesda, MD: U.S. Department of Health and Human Services, National Institutes of Health, National Cancer Institute. NIH Pub. No. 06-6085.

Hollingshead, A.B, & Contractor, N.S. (2006). New media and small group organizing. In L. A. Lievrouw & S. Livingstone (Eds.), The Handbook of New Media (Student Edition) (pp. 114-133). London: Sage.

Katz, N., Lazer, D., Arrow, H., & Contractor, N. (2005). The network perspective on small groups: Theory and research. In M. S. Poole & A. B. Hollingshead (Eds.), Theories of Small Groups: Interdisciplinary Perspectives (pp. 277-312). Newbury Park, CA: Sage.

Bajcsy, R., Rubin, P., Bertenthal, B., Bimber, B., Contractor, N., Finholt, T., Franklin, K., Liberman, M., Mebane, W., Pearce, C. Scacchi, W., Teitelbaum, B., & Urban, M. (2004). Cyberinfrastructure-mediated interaction Workshop on Cyberinfrastructure for the Social Sciences: National Science Foundation.

Why Do Group Members Provide Information to Digital Knowledge Repositories? A Multilevel Application of Transactive Memory Theory, Huang, M., Barbour, J., Su, C., & Contractor, N. S., Journal of the American Society for Information Science and Technology (In press)

A network approach toward literature review, van de Wijngaert, L., Bouwman, H., & Contractor, N. S., Quality & Quantity (In press)

Hot off the Wiki: Structures and Dynamics of Wikipedia’s Coverage of Breaking News, Keegan, B., Gergle, D., & Contractor, N. S., American Behavioral Scientist (In press)

The topology of collective leadership, Contractor, N. S., DeChurch, L. A., Carson, J. B., Carter, D., & Keegan, B., The Leadership Quarterly (In press)

Staying in the Loop: Structure and Dynamics of Wikipedia’s Breaking News Collaborations, Keegan, B., Gergle, D., & Contractor, N., Proceedings of the 8th International Symposium on Wikis and Open Collaboration: WikiSym 2012, Linz, Austria., 2012

Some Assembly Required: Leveraging Web Science to Understand and Enable Team Assembly, Contractor, N, Philosophical Transactions of the Royal Society. Series a, Mathematical, Physical, and Engineering Sciences (In press)

Do editors or articles drive collaboration? Multilevel statistical network analysis of wikipedia coauthorship, Keegan, B., Gergle, D., & Contractor, N., Proceedings of the CSCW ’12 Computer Supported Cooperative Work. Seattle, WA, 2012

Research challenges in measuring data for population health to enable predictive modeling for improving healthcare, Schatz, B., Marsh, C., Gustafson, D., Patrick, K., Krishnan, J., Kumar, S., & Contractor, N., ACM SIGHIT Record, 2(2), 36-41, 2012

Love all, trust a few: Link prediction for trust and psycho-social factors in MMOs, Ahmad, M., Borbora, Z., Srivastava, J., & Contractor, N., Proceedings of the 5th International Conference on Social Computing, Behavioral-Cultural Modeling and Prediction. doi:10.1007/978-3-642-29047-3, 2012

Towards Semantically Enabled Next Generation Community Health Information Portals: The PopSciGrid Pilot., McGuinness, D. L., Lebo, T., Ding, L., McCusker, J. P., Shaikh, A. R., Moser, R. P., et al., Proceedings of the 45th Hawaii International Conference on System Sciences, 2752-2760., 2012

Understanding the ties that bind: A longitudinal investigation of the evolution of a communication network, Contractor, N. S., Whitbred, R. C., Fonti, F., & Steglich, C., Western Journal of Communication, 76(4), 333-357, 2012

Detecting interaction links in a collaborating group using manually annotated data., Mathur, S., Poole, M. S., Peña-Mora, F., Hasegawa-Johnson, M., & Contractor, N., Social Networks. doi:10.1016/j.socnet.2012.04.002 (In press)

Expert recommendation based on social drivers, social network analysis, and semantic data representation, Fazel-Zarandi, M., Devlin, H. J., Huang, Y., & Contractor, N., Proceedings of HetRec ’11, the 2nd International Workshop on Information Heterogeneity and Fusion in Recommender Systems, 2011

Using web science to understand and enable 21st century multidimensional networks, Contractor, N., Proceeding of the Third International Conference on Social Informatics, 2011

Reports:

Young, L., Pieterson, W., Hsieh, Y.-l., Wang, H., & Contractor, N. (2010). Mapping community-based information networks to enable the Chicago Climate Action Plan: A case study of the North Kenwood/Oakland community. Chicago, IL: Northwestern University.