I am a senior lecturer in the department of computer science at Sapir Academic college, serving as the department chair since 2014. I received my Ph.D. from the Department of Computer Science at Ben-Gurion University. My research interests include Trust and Reputation systems, Privacy, Security, and Data mining with special focus on role mining. Prior to my Ph.D. studies I headed the R&D of several companies in the software industry in various domains including timetabling solutions, business intelligence and distributed web-based applications. I have worked as a research assistant in the Deutche telecom Laboratories at Ben-Gurion University while pursuing my Ph.D. degree and during my postdoctoral appointment. I serve as a co-vice chair of IFIP WG 11.11- Trust Management Work group since 2015.
Models of Trust and Reputation and their application in various fields; Trust management systems; Privacy, Access control; Security in OSN; Data mining, Role mining; AI
2010- Friedman award for excellence in research
2010- Best Poster award in the 4th IFIP WG 11.11 International Conference on Trust Management (IFIPTM 2010), Morioka, Japan, June 16-18, 2010
Nadav Voloch, Nurit Gal-Oz, Ehud Gudes, A Trust based Privacy Providing Model for Online
Social Networks. Online Soc.
Networks Media 24: 100138 (2021)
Nadav Voloch,
Ehud Gudes, Nurit Gal-Oz,
Implementing GDPR in Social Networks Using Trust and Context. Cyber Security Cryptography and Machine
Learning. CSCML 2021. Lecture Notes in Computer Science, vol 12716. Springer,
Cham. 497-503.
Nadav Voloch, Ehud Gudes, Nurit Gal-Oz. Preventing Fake News Propagation
in Social Networks using a context Trust-based security model. 15th International Conference on Network and System Security, NSS21. Springer,
2021.
Nadav Voloch, Ehud Gudes, Nurit Gal-Oz, Analyzing the robustness of a
comprehensive Trust-based model for Online Social Networks against Privacy
Attacks. In: Benito R.M.,
Cherifi C., Cherifi H., Moro E., Rocha L.M., Sales-Pardo M. (eds) Complex
Networks & Their Applications IX. COMPLEX NETWORKS 2020 2020. Studies in
Computational Intelligence, vol 943. Springer, Cham.
Nurit Gal-Oz, Yaron Gonen, Ehud Gudes,
Mining meaningful and rare roles from web application usage patterns.
Computers & Security, volume
82: 296-313 (2019)
Silvie Levy, Ehud Gudes, Nurit Gal-Oz: Sharing-habits based privacy control in social networks. Journal of Computer Security 26(2): 177-205 (2018)
Hussien Othman, Ehud Gudes, Nurit Gal-Oz: Advanced Flow Models for Computing the Reputation of Internet Domains. IFIPTM 2017: 119-134
Silvie Levy, Ehud Gudes, Nurit Gal-Oz:Sharing-Habits Based Privacy Control in Social Networks. DBSec 2016: 217-2322015
Igor Mishsky, Nurit Gal-Oz, Ehud Gudes: A Topology Based Flow Model for Computing Domain Reputation. DBSec 2015: 277-292
Igor Mishsky, Nurit Gal-Oz, Ehud Gudes:Computing domains reputation using flow. ICITST 2014: 426-431
Libi Gur, Nurit Gal-Oz, Ehud Gudes:Knots Maintenance for Optimal Management of Trust Relations. IFIPTM 2014: 189-204
Nurit Gal-Oz, Ehud Gudes: Trust and reputation in and across virtual communities. EDBT 2013: 769-772
Nurit Gal-Oz, Tal Grinshpoun, Ehud Gudes: Privacy issues with sharing reputation across virtual communities. PAIS 2011: 3
Nurit Gal-Oz, Ran Yahalom, Ehud Gudes: Identifying Knots of Trust in Virtual Communities. IFIPTM 2011: 67-81
Boris Rozenberg, Yaron Gonen, Ehud Gudes, Nurit Gal-Oz, Erez Shmueli: Tracking end-users in web databases. NSS 2011: 105-112
Nurit Gal-Oz, Yaron Gonen, Ran Yahalom, Ehud Gudes, Boris Rozenberg, Erez Shmueli: Mining Roles from Web Application Usage Patterns. TrustBus 2011: 125-137
Lior Okman, Nurit Gal-Oz, Yaron Gonen, Ehud Gudes, Jenny Abramov: Security Issues in NoSQL Databases. TrustCom 2011: 541-547
Nurit Gal-Oz, Tal Grinshpoun, Ehud Gudes: Privacy Issues with Sharing and Computing Reputation across Communities. JoWUA 1(4): 16-34 (2010)
Nurit Gal-Oz, Tal Grinshpoun, Ehud Gudes: Sharing Reputation Across Virtual Communities. JTAER 5(2): 1-25 (2010)
Yaron Gonen, Nurit Gal-Oz, Ran Yahalom, Ehud Gudes: CAMLS: A Constraint-Based Apriori Algorithm for Mining Long Sequences. DASFAA (1) 2010: 63-77
Alon Grubshtein, Nurit Gal-Oz, Tal Grinshpoun, Amnon Meisels, Roie Zivan: Manipulating Recommendation Lists by Global Considerations. ICAART (2) 2010: 135-142
Nurit Gal-Oz, Niv Gilboa, Ehud Gudes: Schemes for Privately Computing Trust and Reputation. IFIPTM 2010: 1-16
Ehud Gudes, Nurit Gal-Oz, Alon Grubshtein: Methods for Computing Trust and Reputation While Preserving Privacy. DBSec 2009: 291-298
Tal Grinshpoun, Nurit Gal-Oz, Amnon Meisels, Ehud Gudes: CCR: A Model for Sharing Reputation Knowledge Across Virtual Communities. Web Intelligence 2009: 34-41
Nurit Gal-Oz, Ehud Gudes, Danny Hendler: A Robust and Knot-Aware Trust-Based Reputation Model. IFIPTM 2008: 167-182
Nurit Gal-Oz, Ehud Gudes, Eduardo B. Fernández: A Model of Methods Access Authorization in Object-oriented Databases. VLDB 1993: 52-61
Book Editor
Nurit Gal-Oz, Peter R. Lewis:
Trust Management XII - 12th IFIP WG 11.11 International Conference, IFIPTM 2018, Toronto, ON, Canada, July 10-13, 2018, Proceedings. IFIP Advances in Information and Communication Technology 528, Springer 2018, ISBN 978-3-319-95275-8
Jianying Zhou, Nurit Gal-Oz, Jie Zhang, Ehud Gudes: Trust Management VIII - 8th IFIP WG 11.11 International Conference, IFIPTM 2014, Singapore, July 7-10, 2014. Proceedings. IFIP Advances in Information and Communication Technology 430, Springer 2014, ISBN 978-3-662-43812-1
May 2016, Ariel University Seminar. Trust and Reputation in and Across Virtual Communities
May 2016, Ben-Gurion University, "יזמות וחדשנות סין-ישראל, אתגרים והזדמנויות" (GEIC 2016). Aspects of software startups: Challenges to software engineering
March 2013 , 16th International Conference on Extending Database Technology (EDBT '13), Genoa, Italy. Trust and reputation in and across virtual communities.
October 2011, IBM Research Labs. Trust and Reputation Systems and a Model for Sharing Reputation Knowledge across Virtual Communities
March 2011, Ben Gurion University CS seminar. Trust and Reputation Systems