• Vorobeychik ,Yevgeniy,  Myrna Wooders, Greg Leo, Matthew Chambers, Chen Hajaj, Jian Lou, and Martin Van der Linden, “Non-Cooperative Team Formation and a Team Formation Mechanism”, Under review.
  • Hajaj, Chen, Noam Hazon, and David Sarne. “Improving comparison shopping agents’ competence through selective price disclosure.” Electronic Commerce Research and Applications 14.6 (2015): 563-581. (PDF)
  • Hajaj, Chen, Noam Hazon, and David Sarne. “Enhancing comparison shopping agents through ordering and gradual information disclosure.” Autonomous Agents and Multi-Agent Systems 31.3 (2017): 696-714. (PDF)
  • Hajaj, Chen, and David Sarne. “Selective opportunity disclosure at the service of strategic information platforms.” Autonomous Agents and Multi-Agent Systems 31.5 (2017): 1133-1164. (PDF)
 
 
  • Tong, Liang , Bo Li, Chen Hajaj, Chaowei Xiao, Ning Zhang, and Yevgeniy Vorobeychik. “Improving Robustness of ML Classifiers against Realizable, Evasion Attacks Using Conserved Feature”. In Twenty-Eight USENIX Security Symposium. 2019.(PDF)
 
  • Vorobeychik, Yevgeniy , Myrna Wooders, Greg Leo, Matthew Chambers, Chen Hajaj, Jian Lou, and Martin Van der Linden. “Non-Cooperative Team Formation and a Team Formation Mechanism”. In Eleventh annual conference of the Israeli chapter of the game theory society.2019.
 
  • Hajaj, Chen, Sixie Yu, Zlatko Joveski, Yifan Guo, and Yevgeniy Vorobeychik. “Adversarial Coordination on Social Networks”. In International Conference on Autonomous Agents and Multiagent Systems. 2019(PDF)
 
  • Ye, Cheng, Joseph Coco, Anna Epishova, Chen Hajaj, Henry Bogardus, Laurie Novak, Joshua Denny et al. “A crowdsourcing framework for medical data sets.” AMIA Summits on Translational Science Proceedings.2018. (PDF)

     

  • Hajaj, Chen, and Yevgeniy Vorobeychik. “Adversarial Task Assignment”. In International Joint Conference on Artificial Intelligence. 2018 (PDF)
 
  • Elmalech, Avshalom, David Sarne, Esther David, and Chen Hajaj. “Enhancing crowdworkers’ vigilance.” .2017. (PDF)
 
  • Elmalech, Avshalom, David Sarne, Esther David, and Chen Hajaj. “Extending workers’ attention span through dummy events.” In Fourth AAAI Conference on Human Computation and Crowdsourcing. 2016. Best paper finalist (PDF)
 
  • Hajaj, Chen, John P. Dickerson, Avinatan Hassidim, Tuomas Sandholm, and David Sarne. “Strategy-proof and efficient kidney exchange using a credit mechanism.” In Twenty-Ninth AAAI Conference on Artificial Intelligence. 2015. (PDFbib)
 
  • Darom, Tal, Yaniv Gur, Chen Hajaj, and Yosi Keller. “Automatic anatomical shape correspondence and alignment using mesh features.” In 2015 IEEE 12th International Symposium on Biomedical Imaging (ISBI), pp. 1530-1534. IEEE, 2015.(PDF)
  • Hajaj, Chen, Noam Hazon, and David Sarne. “Ordering effects and belief adjustment in the use of comparison shopping agents.” In Twenty-Eighth AAAI Conference on Artificial Intelligence. 2014. (PDFbib)
 
  • Hajaj, Chen and David Sarne. “Strategic Information Platforms – Selective Disclosure and The Price of “Free””, In Fifteenth ACM Conference on Economics and Computation. 2014. (PDFbib)
 
  • Hajaj, Chen, Noam Hazon, David Sarne, and Avshalom Elmalech. “Search More, Disclose Less”, In Twenty-Seventh AAAI Conference on Artificial Intelligence. 2013. (PDFbib)
 
  • Hajaj, Chen and Yevgeniy Vorobeychik. “Adversarial Randomized Task Assignment”. In Sixth Day on Computational Game Theory. 2019.
  • Hajaj, Chen, Sixie Yu, Zlatko Joveski and Yevgeniy Vorobeychik. “Adversarial Coordination on Social Networks”. In AAMAS-IJCAI workshop on agents and incentives in artificial intelligence (AI^3). 2018.
 
  • Lou, Jian, Chen Hajaj, Myrna Wooders, and Yevgeniy Vorobeychik. “Automated Mechanism Design for the Roommates Problem”. In The AAMAS-IJCAI workshop on agents and incentives in artificial intelligence (AI^3). 2018.
 
  • Lou,Jian,  Martin Van der Linden, Pranav Batra, Chen Hajaj, Greg Leo, Yevgeniy Vorobeychik and Myrna Wooders. “Rotating Proposer Mechanisms for Team Formation”. In Workshop on Cooperative Games in Multiagent Systems. 2017. Most visionary paper.
 
  • Hajaj, Chen, David Sarne and Lea Perets, “Advanced Service Schemes for a Self-Interested Information Platform”, In Thirteenth International Conference on Autonomous Agents and Multiagent Systems. 2014. (PDFbib)