RESUME
Reserach
In 2009 as a part of my Ph.D. studies I worked as an intern in Yahoo! Labs in Haifa Israel.
Having studied these huge volumes of data, I continue to explore online social networks adn Big Data .
I am a part of a research group which studies the following issues:
1. Social Computing Applications.
2. SNA - Social Network Analysis.
3. Huge social Networks’ Modeling.
4. Dynamic evolution and structure of OSN - Online Social Network.
5. Diffusion of Information and Influence over social networks.
6. Opinion Leaders and Social Capital.
7. Critical Mass and its role in online social networks.
8. Valued links and “Black Holes” in social networks.
Theories
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Social Construction of Technology
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Actor – Network Theory
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Agency Theory
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Transaction Costs
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Diffusion Theory
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Structural balance theory
Scholary Conferences
Rechavi, A and Rafaeli, S (2013) "Social Networks in Yahoo! Answers", ILAIS
Rechavi, A and Rafaeli, S (2012) "Networks and Knowledge", ILAIS
Rechavi, A and Rafaeli, S (2012) "Knowledge and Social Networks in Yahoo! Answers", HICSS 45, Hawaii, USA
Rechavi, A and Rafaeli, S (2011) “Not all is Gold that Glitters: Response time & satisfaction rates in Yahoo! Answers”, Presented at The Third IEEE International Conference on Social computing (Socialcom), 2011, MA, USA
Skills
Social Network Analysis
Project Management
Entrepreneurship
Information Systems
Models
Languages
Henrew
English
Henrew
English
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Education
Ph.D 2010 – 2013
University Of Haifa, The Graduate School of Management, “Concealed Networks: Explicit and Implicit Networks in Q&A Online Sites”.
M.Sc 1998 - 2000
Tel Aviv University Management, Technology and Information Systems, Prof. Gadi Ariav, “Estimation of cost and risk in software projects”.
B.A 1991 - 1994 (With Honor)
Tel Aviv University, Economy and Management.
Publications
A. Rechavi and S. Rafaeli, “Not all is Gold that Glitters: Response time & satisfaction rates in Yahoo! Answers”, Proceedings of The Third IEEE International Conference on Social computing, 2011
A. Rechavi and S. Rafaeli, "What’s sauce for the goose is sauce for the gander: Knowledge and Social Networks inYahoo! Answers", Proceedings of HICSS 45, Hawaii, 2012.
A. Rechavi and S. Rafaeli, "Active players in a network tell the story_Parsimony in modeling huge networks" , First Monday, August, 2014