Elena Zheleva

2026

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Post-hoc Popularity Bias Correction in GNN-based Collaborative Filtering.
Md Aminul Islam|Elena Zheleva|Ren Wang
Proceedings of the ACM Web Conference 2026, WWW 2026, Dubai, United Arab Emirates, originally scheduled for April 13-17, 2026, rescheduled for June 29 - July 3, 2026.

2025

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Leveraging Heterogeneous Spillover in Maximizing Contextual Bandit Rewards.
Ahmed Sayeed Faruk|Elena Zheleva
Proceedings of the ACM on Web Conference 2025, WWW 2025, Sydney, NSW, Australia, 28 April 2025- 2 May 2025

2024

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Bridging or Breaking: Impact of Intergroup Interactions on Religious Polarization.
Rochana Chaturvedi|Sugat Chaturvedi|Elena Zheleva
Proceedings of the ACM on Web Conference 2024, WWW 2024, Singapore, May 13-17, 2024

2022

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RGRecSys: A Toolkit for Robustness Evaluation of Recommender Systems.
Zohreh Ovaisi|Shelby Heinecke|Jia Li|Yongfeng Zhang|Elena Zheleva|Caiming Xiong
WSDM '22: The Fifteenth ACM International Conference on Web Search and Data Mining, Virtual Event / Tempe, AZ, USA, February 21 - 25, 2022

2021

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Propensity-Independent Bias Recovery in Offline Learning-to-Rank Systems.
Zohreh Ovaisi|Kathryn Vasilaky|Elena Zheleva
SIGIR '21: The 44th International ACM SIGIR Conference on Research and Development in Information Retrieval, Virtual Event, Canada, July 11-15, 2021

2020

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Correcting for Selection Bias in Learning-to-rank Systems.
Zohreh Ovaisi|Ragib Ahsan|Yifan Zhang|Kathryn Vasilaky|Elena Zheleva
WWW '20: The Web Conference 2020, Taipei, Taiwan, April 20-24, 2020

2017

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Directed Edge Recommender System.
Ios Kotsogiannis|Elena Zheleva|Ashwin Machanavajjhala
Proceedings of the Tenth ACM International Conference on Web Search and Data Mining, WSDM 2017, Cambridge, United Kingdom, February 6-10, 2017

2010

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Statistical models of music-listening sessions in social media.
Elena Zheleva|John Guiver|Eduarda Mendes Rodrigues|Natasa Milic-Frayling
Proceedings of the 19th International Conference on World Wide Web, WWW 2010, Raleigh, North Carolina, USA, April 26-30, 2010

2009

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To join or not to join: the illusion of privacy in social networks with mixed public and private user profiles.
Elena Zheleva|Lise Getoor
Proceedings of the 18th International Conference on World Wide Web, WWW 2009, Madrid, Spain, April 20-24, 2009

2008

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Trusting spam reporters: A reporter-based reputation system for email filtering.
Elena Zheleva|Aleksander Kolcz|Lise Getoor
ACM Transactions on Information Systems (TOIS) 2008 Volume 27 Issue 1

2007

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Discovering interesting usage patterns in text collections: integrating text mining with visualization.
Anthony Don|Elena Zheleva|Machon Gregory|Sureyya Tarkan|Loretta Auvil|Tanya E. Clement|Ben Shneiderman|Catherine Plaisant
Proceedings of the Sixteenth ACM Conference on Information and Knowledge Management, CIKM 2007, Lisbon, Portugal, November 6-10, 2007