UMass CIIR Recent Publications https://ciir-publications.cs.umass.edu/pub/web/rss/publication A listing of the latest publications from the Center for Intelligent Information Retrieval at the University of Massachusetts. Evaluation of Agents under Simulated AI Marketplace Dynamics https://ciir-publications.cs.umass.edu/pub/web/getpdf.php?id=1557 IR-1378: Fernando Diaz, To Eun Kim, Alireza Salemi, Hamed Zamani. "Evaluation of Agents under Simulated AI Marketplace Dynamics" To appear in the Proceeding of the 49th International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2026), July 20–24, 2026, Melbourne, Australia. Tue, 07 Apr 2026 00:00:00 +0000 GMT Hedonic Neurons: A Mechanistic Mapping of Latent Coalitions in Transformer MLPs https://ciir-publications.cs.umass.edu/pub/web/getpdf.php?id=1555 IR-1376: James Allan, Tanya Chowdhury, Atharva Nijasure, Yair Zick. "Hedonic Neurons: A Mechanistic Mapping of Latent Coalitions in Transformer MLPs" In The Proceedings of the Fourteenth International Conference on Learning Representations (ICLR 2026), Rio de Janeiro, Brazil, April 23–27, 2026. Thu, 05 Mar 2026 00:00:00 +0000 GMT Uncertainty Quantification for Retrieval-Augmented Reasoning https://ciir-publications.cs.umass.edu/pub/web/getpdf.php?id=1554 IR-1375: Heydar Soudani, Hamed Zamani, Faegheh Hasibi. "Uncertainty Quantification for Retrieval-Augmented Reasoning" To appear in the Proceedings of 5he 49th International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2026), July 20–24, 2026, Melbourne, Australia Thu, 26 Feb 2026 00:00:00 +0000 GMT Learning to Reason for Multi-Step Retrieval of Personal Context in Personalized Question Answering https://ciir-publications.cs.umass.edu/pub/web/getpdf.php?id=1553 IR-1374: Maryam Amirizaniani, Alireza Salemi, Hamed Zamani. "Learning to Reason for Multi-Step Retrieval of Personal Context in Personalized Question Answering" To appear in the Proceeding of the 49th International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2026), July 20–24, 2026, Melbourne, Australia Tue, 24 Feb 2026 00:00:00 +0000 GMT Learning from Natural Language Feedback for Personalized Question Answering https://ciir-publications.cs.umass.edu/pub/web/getpdf.php?id=1552 IR-1373: Alireza Salemi, Hamed Zamani. "Learning from Natural Language Feedback for Personalized Question Answering " To appear in the Proceeding of the 49th International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2026), July 20–24, 2026, Melbourne, Australia Tue, 24 Feb 2026 00:00:00 +0000 GMT Pathways of Thoughts: Multi-Directional Thinking for Long-form Personalized Question Answering https://ciir-publications.cs.umass.edu/pub/web/getpdf.php?id=1550 IR-1371: Alireza Salemi, Cheng Li, Mingyang Zhang, Qiaozhu Mei, Zhuowan Li, Weize Kong, Tao Chen, Hamed Zamani, Michael Bendersky. "Pathways of Thoughts: Multi-Directional Thinking for Long-form Personalized Question Answering" In the Proceedings of ACM Web Conference 2026 (WWW 2026), Dubai, United Arab Emirates, April 13-17, 2026, pp. 5822-5833. Tue, 24 Feb 2026 00:00:00 +0000 GMT Beyond a Million Tokens: Benchmarking and Enhancing Long-Term Memory in LLMs https://ciir-publications.cs.umass.edu/pub/web/getpdf.php?id=1549 IR-1370: Mohammad Tavakoli, Alireza Salemi, Carrie Ye, Mohamed Abdalla, Hamed Zamani, Michael Ross. "Beyond a Million Tokens: Benchmarking and Enhancing Long-Term Memory in LLMs" In the Proceedings of The Fourteenth International Conference on Learning Representations (ICLR 2026), Rio de Janeiro, Brazil, April 23rd - 27th, 2026 Tue, 24 Feb 2026 00:00:00 +0000 GMT Scaling Laws for Embedding Dimension in Information Retrieval https://ciir-publications.cs.umass.edu/pub/web/getpdf.php?id=1548 IR-1369: Julian Killingback, Manas Madine, Mahta Rafiee, Hamed Zamani. "Scaling Laws for Embedding Dimension in Information Retrieval" To appear in the Proceeding of the ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2026), Melbourne, Australia, July 20-24, 2026 Thu, 19 Feb 2026 00:00:00 +0000 GMT Inferential Question Answering https://ciir-publications.cs.umass.edu/pub/web/getpdf.php?id=1543 IR-1364: Adam Jatowt, Jamshid Mozafari, Hamed Zamani, Guido Zuccon. "Inferential Question Answering" In the Proceedings of the ACM Web Conference 2026 (WWW 2026), Dubai, UAE, April 13-17, 2026, pp. 2384-2395. Mon, 26 Jan 2026 00:00:00 +0000 GMT Can Instructed Retrieval Models Really Support Exploration? https://ciir-publications.cs.umass.edu/pub/web/getpdf.php?id=1542 IR-1363: Piyush Maheshwari, Sheshera Mysore, Hamed Zamani. "Can Instructed Retrieval Models Really Support Exploration?" In the Proceedings of the 2026 ACM SIGIR Conference on Human Information Interaction and Retrieval (CHIIR 2026), Seattle, WA, March 22-26, 2026, pp. 508-513. Tue, 20 Jan 2026 00:00:00 +0000 GMT