Publications - Books


Publications - Peer-Reviewed Journals


Publications - Peer-Reviewed Conferences


Refereed Abstracts, Prototype, Poster, & Short Presentations


PhD Dissertation


Under Review




Publications - Books


Arazy O., Artificial Semantics in Text Retrieval, 2008, VDM Verlag, Germany, ISBN 978-3-639-02613-9



Publications - Peer-Reviewed Journals


Arazy O. Kopak R., and Hadar I., Heuristic Principles and Differential Judgments in the Assessment of Information Quality, Journal of the Association for Information Systems (JAIS), forthcoming.


Arazy O., Daxenberger J., Lifshitz-Assaf H., Nov O., and Gurevych I., Turbulent Stability of Emergent Roles: The Dualistic Nature of Self-Organizing Knowledge Co-Production, Information Systems Research (ISR), 27(4), pp. 792-812.


Arazy O., Gellatly I., Brainin E. and Nov O., 2016, Motivation to Share Knowledge using Wiki Technology and the Moderating Effect of Role Perceptions, Journal of the American Society for Information Science and Technology (JASIST), 67(10), pp. 2362–2378.


Brainin E. and Arazy O., 2016, When Wiki Technology Meets Corporate Knowledge Management Routines: A Sociomateriality Perspective, Informatics, 3(3), article 12. http://www.mdpi.com/2227-9709/3/3/12/pdf


Caridi-Zahavi O., Carmeli A., and Arazy O., 2016, The Influence of CEOs Visionary Innovation Leadership on the Performance of High-Technology Ventures: The Mediating Roles of Connectivity and Knowledge Integration, Journal of Product Innovation Management (JPIM), 33(3), 356-376


Arazy O, Nov, O, and Kumar N., Personalityzation: UI Personalization, Theoretical Grounding in HCI and Design Research, AIS Transactions on Human-Computer Interaction (AIS THCI), 7(2), 43-69, http://aisel.aisnet.org/thci/vol7/iss2/1/


Nov O., Arazy O., and Anderson D., 2014, Scientists@home: what drives the quantity and quality of online citizen science participation? PLOS One, online version.


Arazy O. and Gellatly I., 2013, Corporate Wikis: The Effects of Owners’ Motivation and Behavior on Group Members’ Engagement, Journal of Management Information Systems (JMIS), 29(3), pp. 87-116.


Arazy O., Yeo L., and Nov O., 2013, Stay on the Wikipedia Task: when task-related disagreements slip into personal and procedural conflicts, Journal of the American Society for Information Science and Technology (JASIST), 64(8), 1634-1648.


Brown S., Arazy O., Ruecker S., Radzikowska M., Rockwell G., Moroz. A., Sellmer M., and members of the INKE Research Team, 2012, From CRUD to CREAM: Imagining a Rich Scholarly Repository Interface, Scholarly and Research Communication, 3(4).


Arazy O. , Nov O., Patterson R., and Yeo L., 2011, Information Quality in Wikipedia: The Effects of Group Composition and Task Conflict, Journal of Management Information Systems (JMIS), 27(4), pp. 73-100.


Arazy O. and Kopak R., 2011, On the Measurability of Information Quality, Journal of the American Society for Information Science and Technology (JASIST), 62(1), pp. 89-99.


Arazy O. and Croitoru A., 2010, The Sustainability of Corporate Wikis: A Time Series Analysis of Activity Patterns, ACM Transactions on Management Information Systems (TMIS), 1(1), article 6.


Arazy O., Kumar N., and Shapira B., 2010, A Theory-Driven Design Framework form Social Recommender Systems, Journal of the Association for Information Systems (JAIS), 11(9), pp. 455-490. JAIS Paper of the Year Award. AIS Best IS Publication of the Year Award


Arazy O., Stroulia E., Ruecker S., Arias C., Fiorentino C., Ganev V., and Yau T., 2010, Recognizing Contributions in Wikis: Authorship Categories, Algorithms, and Visualizations, Journal of the American Society for Information Science and Technology (JASIST), 61(6), pp. 1166-1179.


Raghupathi V., Arazy O., Kumar N., and Shapira B., 2009, Opinion Leadership: Non-Work-Related Advice in a Work Setting. Journal of e-Commerce Research (JECR), Vol. 10, November 2009, pp. 220-234.


Arazy O., Kumar N., and Shapira B., 2009, Improving Social Recommender Systems, IEEE IT Professional, May/June 2009, pp. 31-37.


Arazy O., Gellatly I., Jang S., and Patterson R.., 2009, Wiki Deployment in Corporate Settings, IEEE Technology and Society, Summer 2009, 28(2), pp. 57-64.


Arazy O. and Woo C., 2007, Enhancing Information Retrieval through Statistical Natural Language Processing: A Study of Collocation Indexing, Management Information Systems Quarterly (MISQ), 31(3), pp. 525-546.


Arazy O. and Woo C., 2002, Analysis and Design of Agent-Oriented Information Systems (AOIS), Knowledge Engineering Review, 17(3), pp. 215-260.



Publications - Peer-Reviewed Conferences


Balestra M., Cheshire C., Arazy O., and Nov O., Charting the Motivational Trajectories of Peer Production Newcomers, the ACM SIGCHI Conference on Human Factors in Computing Systems (CHI’2017), May 6-11, 2017, Denver, CO, USA.


Poretski L. and Arazy O., Placing a Value on Community's Co-creation: A Study of Video Game "Modding" Community, 20th Conference on Computer-Supported Cooperative Work and Social Computing (CSCW 2017), February 25 – March 1, 2017, Portland, OR, USA.


Arazy O., Lifshitz-Assaf H., Nov O., Daxenberger J., Balestra M., and Cheshire C., On the How and Why of Temporal Dynamics of Emergent Roles in Wikipedia, 20th Conference on Computer-Supported Cooperative Work and Social Computing (CSCW 2017), February 25 – March 1, 2017, Portland, OR, USA.


Balestra M., Arazy O., Cheshire C., and Nov O., Motivational determinants of participation trajectories in Wikipedia, Proceedings of the 10th International Conference on Weblogs and Social Media (ICWSM 2016), May 17-20, 2016, Cologne, Germany.


Keegan B., Lev, S. and Arazy O., Sequence Analysis Methods for Analyzing Organizational Routines in Online Knowledge Collaborations, the 19th ACM Conference of Computer-Supported Cooperative Work and Social Computing (CSCW’2016), February 27 - March 2, 2016, San Francisco, CA, USA.


Ben Assuli O., Arazy O., Shabtai I., Kumar N. and Leshno M., The Use of Information Systems in Emergency Departments: the Effect of Task Complexity, Proceeding of the 25th Workshop on Information Technologies & Systems (WITS’2015), December 12-13, 2015, Fort Worth, Texas , USA.


Nov O. and Arazy O., Asymmetric recommendations: the interacting effects of social ratings’ direction and strength on users’ ratings, the 9th ACM Conference on Recommender Systems (RecSys’2015), Vienna, Austria, September 16-20, 2015.


Arazy O., Ortega F., Nov O., Yeo L., and Balila A., Functional Roles and Career Paths in Wikipedia Proceedings of Computer Supported Cooperative Work (CSCW) 2015, Vancouver, BC, Canada, March 14-18, 2015.


Arazy O., Nov O. and Ortega F., The [Wikipedia] World is Not Flat: on the organizational structure of online production communities, the 22nd European Conference on Information Systems (ECIS’2014), Tel-Aviv, Israel, June 9-11, 2014.


Anand S., Arazy O., Mandayam N., and Nov O., A Game Theoretic Analysis of Collaboration in Wikipedia. 4th Conference on Decision and Game Theory for Security (GameSec’2013), Fort Worth, TX, USA, November 11-12, 2013.


Nov O., Arazy O., Lotts K. and Naberhaus T., Motivation-targeted personalized UI design: a novel approach to enhancing citizen science participation, Proceedings of the 13th European Conference on Computer Supported Cooperative Work (ECSCW’2013), Paphos, Cyprus, Sept. 21-25, 2013.


Nov O., Arazy O., López C., and Brusilovsky P., Exploring personality-targeted UI design in online social participation systems, Proceedings of the ACM SIGCHI Conference on Human Factors in Computing Systems (CHI’2013), Paris, France, April 27 – May 2, 2013.


Nov O. and Arazy O., Personality-Targeted Design: Theory, Experimental Procedure, and Empirical Results,Proceedings of Computer Supported Cooperative Work (CSCW) 2013, San Antonio, Texas, USA, February 23-27, 2013.


Yeo L. and Arazy O., What Makes Corporate Wikis Work? Wiki Affordances and Their suitability for Corporate Knowledge Work, Proceeding of DESRIST2012, Las Vegas, Nevada, USA, May 14-15, 2012.


Arazy O., Ruecker S., Rodriguez O., Giacometti A., Zhang L., and Chun S., Mapping the Information Science Domain, Proceedings of Digital Humanities (DH2012). Hamburg, Germany. July 16-22, 2012.


Brown S., Arazy O., Ruecker S., Radzikowska M., Rockwell G., Moroz. A., Sellmer M., and members of the INKE Research Team, From CRUD to CREAM: Imagining a Rich Scholarly Repository Interface, Research Foundations for Understanding Books and Reading in a Digital Age: Text and Beyond. Kyoto, Japan. 18 November, 2011.


Jang S., Arazy O., Nov O., and Brainin E., ‘Crowding Out’ in Corporate Wikis: the Effects of Job Responsibility and Motivation on Participation, Proceedings of the 6th Mediterranean Conference on Information Systems (MCIS’2011), Cyprus, September 3-5, 2011.


Nov. O., Arazy O., and Anderson D., Technology-Mediated Citizen Science Participation: A Motivational Model, Proceedings of the 5th International AAAI Conference on Weblogs and Social Media (ICWSM 2011), Barcelona, Spain, July 17-21, 2011.


Nov. O., Arazy O., and Anderson D., 2011, Dusting for Science: Motivation and Participation of Digital Citizen Science Volunteers, Proceedings of iConference 2011, February 8-11, 2011, Seattle, WA, USA. Best Paper Award.


Nov. O., Anderson D., and Arazy O., 2010, Volunteer computing: a model of the factors determining contribution to community-based scientific research, Proceedings of 19th International World Wide Web Conference WWW2010), Raleigh NC, USA, April 26-30, 2010.


Arazy O. and Nov O., 2010, Determinants of Wikipedia Quality: the Roles of Global and Local Contribution Inequality, Proceedings of Computer Supported Cooperative Work (CSCW) 2010, Savannah, Georgia, USA, February 2010.


Arazy O., Croitoru A., and Jang S., 2009, The Lifecycle of Corporate Wikis: An Analysis of Activity Patterns, Proceeding of the 19th Workshop on Information Technologies & Systems (WITS’09), December 2009, Phoenix, Arizona, USA.


Croitoru A. and Arazy O., 2009, Building Location–Based Mass Collaboration Systems: Challenges and Opportunities, Proceedings of the International Opensource Geospatial Research Symposium (OGRS), Paris, France, December, 2009.


Arazy O. and Stroulia E., 2009, A Tool for Estimating the Relative Contributions of Wiki Authors, Proceedings of the 3rd International Conference on Weblogs and Social Media (ICWSM’09), May 2009, San Jose, California, USA.


Arazy O., Elsane I., Shapira B., and Kumar N., 2007, Social Relationships in Recommender Systems, Proceeding of the 17th Workshop on Information Technologies & Systems (WITS’07) , December 2007, Montreal, Canada.


Croitoru A. and Arazy O., 2007, Introducing Location-Based Mass Collaboration Systems, Proceeding of the 17th Workshop on Information Technologies & Systems (WITS’07) , December 2007, Montreal, Canada.


Patterson R., Gellatly I., Arazy O., and Jang S., 2007, The Effects of Wikis Characteristics on Performance Quality, Proceeding of the 17th Workshop on Information Technologies & Systems (WITS’07), December 2007, Montreal, Canada


Raghupathi V., Arazy O., Kumar N., and Shapira B., 2007, Antecedents of Opinion Leadership in Social Networks, Proceedings of the 6th Workshop on e-Business (WeB), December 2007, Montreal, Canada.


Arazy O., Morgan W., and Patterson R., 2006, Wisdom of the Crowds: Decentralized Knowledge Construction in Wikipedia, Proceeding of the 16th Workshop on Information Technologies & Systems (WITS’06), December 2006


Arazy O., Kumar N., and Shapira B., 2006, Designing Social Filtering Systems by Embedding Explicit Receiver-Source Relationships, Proceeding of the Trust workshop in CHI’06, April 2006, Montreal, Canada.


Arazy O. Kumar N., and Shapira B., 2006, Social Recommendations Systems: Leveraging the Power of Social Networks in Generating Recommendations, Proceeding of the 1st Design Science Research in Information Systems and Technology conference (DESRIST), February 2006, Claremont, California, USA.


Arazy O. Ji Y., and Patterson R., 2006, Does Reputation Matter for Open Content Systems?, Proceeding of the 1st Design Science Research in Information Systems and Technology conference (DESRIST), February 2006, Claremont, California, USA.


Arazy O. and Patterson R., 2005, An Analysis of Open Content systems, Proceeding of the 15th Workshop on Information Technologies & Systems (WITS’05), December 2005, Las Vegas, Nevada, USA.


Arazy O. and Woo C., 2003, Information Access from General Collections: Enhancing the Cluster-Based Retrieval Model, Proceeding of the 13th Workshop on Information Technologies & Systems (WITS’03), December 2003, Seattle, Washington, USA.



Refereed Abstracts, Prototype, Poster & Short Presentations


Arazy O. and Malkinson D., Biases in Environmental Monitoring Citizen Science Data: Local vs. Global Communities, Citizen Science Association Conference 2017, May 17 - 20, 2017. St. Paul, Minnesota, USA.


Poretski L. and Arazy O., Placing Value on Community Co-creations: A Study of a Video Game 'Modding' Community, the 3rd World Open Innovation Conference (WOIC), December 15-16, 2016, Barcelona, Spain.


Lifshitz-Assaf H., Arazy O., Nov O., Daxenberger J. and Gurevych I., Turbulent Stability of Emergent Roles: The Dualistic Nature of Self-Organizing Knowledge Co-Production, the 3rd World Open Innovation Conference (WOIC), December 15-16, 2016, Barcelona, Spain.


Lev S. and Arazy O., Emergent Routines in Wikipedia’s Co-Production, Research in Progress, 10th annual ILAIS (Israel Association for Information Systems) conference, July 4, 2016, Beer Sheva, Israel.


Poretski L., Lanir J. and Arazy O., The Role of Emotions in the Image Retrieval Process, 10th annual ILAIS (Israel Association for Information Systems) conference, July 4, 2016, Beer Sheva, Israel.


Ben-Assuli, O., Arazy O., Kumar, N., Shabtai, I., Leshno, M., The Use of Information Systems in Emergency Departments Under Various Complication Task Levels, 10th annual ILAIS (Israel Association for Information Systems) conference, July 4, 2016, Beer Sheva, Israel.


Arazy O., Daxenberger J., Lifshitz H., Nov O., and Gurevych I., Emergent Roles in Self-Organizing Knowledge Co-Production: Turbulence and Stability, Collective Intelligence 2016, New York, NY, USA, June 1-3, 2016.


Poretski L., Lanir J. and Arazy O., The Role of Emotions Inherent in the Images in The Image Retrieval Process,the Israeli Conference on Computer-Human Interaction (IsraCHI'2016), February 18, 2016, Ramat Gan, Israel.


Poretski L., Lanir J. and Arazy O., Influence of emotions inflicted by images on the image seeking process, Research in Progress,9th annual ILAIS (Israel Association for Information Systems) conference, June 29, 2015, Ono Academic College, Israel. Best Paper Award.


Lev S. and Arazy O., Representing Contributors’ Co-Production Sequences in Wikipedia, Research in Progress, 9th annual ILAIS (Israel Association for Information Systems) conference, June 29, 2015, Ono Academic College, Israel.


Arazy O., Halfon N., and Malkinson D., Collective Intelligence for Rain Prediction, Accepted for:Collective Intelligence 2015, Santa Clara, CA, USA, May 31-June 2, 2015.


Zamansky A. & Arazy O., Argumentation Logic as a Formal Foundation for Collective Intelligence Systems: a Roadmap, Accepted for:Collective Intelligence 2015, Santa Clara, CA, USA, May 31-June 2, 2015.


Arazy O., Halfon N., and Malkinson D., Forecasting rain events - Meteorological models or collective intelligence?, European Geosciences Union General Assembly, Vienna, Austria, April 12-17, 2015.


Arazy O., Brausen H., Turner D., Balila A., Stroulia E., and Lanir J., coDNA: Visualizing Peer Production Processes, Computer Supported Cooperative Work (CSCW) 2015, Vancouver, BC, Canada, March 14-18, 2015. (screencast video)


Arazy O., Brausen H., Turner D., Balila A., Stroulia E., and Lanir J., coDNA: A Visualization Tool for the Analysis of Peer Production, the Israeli Conference on Computer-Human Interaction (IsraCHI'2015), Hertzelia, Israel, February 18, 2015.


Arazy O., Halfon N., and Malkinson D., Rain Prediction in Israel: Comparing Meteorologic Models against a Community's Collective Intelligence [in Hebrew], Proceedings of the 55th Conference of the Israeli Geographic Society, Haifa, Israel, Dec. 21, 2014.


Arazy O., Nov. O., and Blumberg M., Motivation for Joining Volunteer Computing Projects, 3rd Citizen Cyberscience Summit, February 20-22, 2014, London, UK.


Arazy O. and Nov. O., 2013, Wiki DNA: Uncovering the Patterns of Online Collaboration, 7th annual ILAIS (Israel Association for Information Systems) conference, July 1, 2013, Ruppin Academic Center, Israel.


Brainin E., Arazy O., and Nov. O., Accommodating organizational forms and functions to Wiki base collaboration: An exploratory study of fit and adaptation, World Social Science Forum (WSSF 2013), October 13-15, 2013, Montréal, Québec, Canada


Dance M., Nisbet A., Croitoru A., and Arazy O., 2010, WiserPath: Location-Based Collaboration System for the City of Edmonton, The 20th Workshop on Information Technologies and Systems (WITS'10), December 11-12, 2010, St. Louis, Missouri, USA.


Nov. O., Anderson D., and Arazy O., 2010, Crowdsourcing for Science: Understanding and Enhancing SciSourcing Contribution, CSCW’2010 Workshop: The Changing Dynamics of Scientific Collaborations, Feb. 7, 2010, Savannah, Georgia, USA.


Arazy O., Brainin E., and Ruecker S., 2009, The Monologue of the Group: Wiki Affordances and Organizational Work, CORS-INFORMS, Toronto, Canada, June, 2009.


Ruecker S., Fiorentino C., Arias C., Bouchard M., Ganev V., Arazy O., and Stroulia E., 2008, Visualizing Relative Wiki Contributions, The Third Annual Chicago Colloquium on Digital Humanities and Computer Science; DHCS 2008, November 1-3, 2008, Chicago, USA.


Arazy O. and Nov. O., 2008, Community-Based Knowledge Production: Antecedents of Product Quality in Wikipedia, 6th Annual International Open and User Innovation Workshop, August 4-6, 2008, Harvard Business School and Massachusetts Institute of Technology, Boston, MA, USA.


Stroulia E. and Arazy O., 2007, Wiki User Contribution, IBM CASCON 2007, October 2007, Toronto, Canada.


Arazy O. and Croitoru A., 2007, WikiGIS: An Integrated Wrapper For Location Based Mass Collaboration, the 17th Workshop on Information Technologies & Systems (WITS’07), December 2007,



PhD Dissertation


Arazy O., Artificial Semantics in Text Retrieval, PhD Dissertation, University of British Columbia, 2004.



Under Review


Anand S., Arazy O., Mandayam N., and Nov O., A Game Theoretic Analysis of Content Creation in Wikipedia: Competition and Governance [sample Wikipedia articles].