Omar Khattab

77 papers A* 11A 3Journal 48Unranked 15
YearRankTypeTitle / Venue / Authors
2026 J jnl
Enhancing text-to-structured query language translation for seamless electronic medical record access.
PeerJ Comput. Sci.
Gomathi Bakthavatchalu, Saravana Balaji Balasubramanian, Omar Khattab, Mhd Omar Al-Kadri, Dhanushkumar Vadivel, Harish Prasath V. G., Srinivasa Pradeep S, Somaiyeh MahmoudZadeh
2026 — conf
LIR: The First Workshop on Late Interaction and Multi Vector Retrieval @ ECIR 2026.
ECIR (3)
Benjamin Clavié, Xianming Li, Antoine Chaffin, Omar Khattab, Tom Aarsen, Manuel Faysse, Jing Li
2026 J jnl
Meta-Harness: End-to-End Optimization of Model Harnesses.
CoRR
Yoonho Lee, Roshen Nair, Qizheng Zhang, Kangwook Lee, Omar Khattab, Chelsea Finn
2025 — conf
ColBERT-Serve: Efficient Multi-stage Memory-Mapped Scoring.
ECIR (4)
Kaili Huang, Thejas Venkatesh, Uma Dingankar, Antonio Mallia, Daniel Campos, Jian Jiao, Christopher Potts, Matei Zaharia, Kwabena Boahen, Omar Khattab, Saarthak Sarup, Keshav Santhanam
2025 J jnl
ColBERT-serve: Efficient Multi-Stage Memory-Mapped Scoring.
CoRR
Kaili Huang, Thejas Venkatesh, Uma Dingankar, Antonio Mallia, Daniel Campos, Jian Jiao, Christopher Potts, Matei Zaharia, Kwabena Boahen, Omar Khattab, Saarthak Sarup, Keshav Santhanam
2025 J jnl
FreshStack: Building Realistic Benchmarks for Evaluating Retrieval on Technical Documents.
CoRR
Nandan Thakur, Jimmy Lin, Sam Havens, Michael Carbin, Omar Khattab, Andrew Drozdov
2025 J jnl
GEPA: Reflective Prompt Evolution Can Outperform Reinforcement Learning.
CoRR
Lakshya A. Agrawal, Shangyin Tan, Dilara Soylu, Noah Ziems, Rishi Khare, Krista Opsahl-Ong, Arnav Singhvi, Herumb Shandilya, Michael J. Ryan, Meng Jiang, Christopher Potts, Koushik Sen, Alexandros G. Dimakis, Ion Stoica, Daniel Klein, Matei Zaharia, Omar Khattab
2025 A* conf
Grounding by Trying: LLMs with Reinforcement Learning-Enhanced Retrieval.
ICLR
Sheryl Hsu, Omar Khattab, Chelsea Finn, Archit Sharma
2025 J jnl
LIR: The First Workshop on Late Interaction and Multi Vector Retrieval @ ECIR 2026.
CoRR
Benjamin Clavié, Xianming Li, Antoine Chaffin, Omar Khattab, Tom Aarsen, Manuel Faysse, Jing Li
2025 — conf
LangProBe: a Language Program Benchmark.
EMNLP (Findings)
Shangyin Tan, Lakshya A. Agrawal, Arnav Singhvi, Liheng Lai, Michael J. Ryan, Daniel Klein, Omar Khattab, Koushik Sen, Matei Zaharia
2025 J jnl
LangProBe: a Language Programs Benchmark.
CoRR
Shangyin Tan, Lakshya A. Agrawal, Arnav Singhvi, Liheng Lai, Michael J. Ryan, Dan Klein, Omar Khattab, Koushik Sen, Matei Zaharia
2025 J jnl
MSCHF algorithm for minimizing signaling costs and enhancing vertical handover efficiency in wireless communications networks.
PeerJ Comput. Sci.
Omar Khattab, Mhd Omar Al-Kadri, Sriharsha Av, Saravana Balaji Balasubramanian, Saleem Basha Mohamed Sulaiman, Omar Alani, Raouf Abozariba, Mohamed Amine Ben Farah, Adnan Akhunzada
2025 J jnl
Multi-module GRPO: Composing Policy Gradients and Prompt Optimization for Language Model Programs.
CoRR
Noah Ziems, Dilara Soylu, Lakshya A. Agrawal, Isaac Miller, Liheng Lai, Chen Qian, Kaiqiang Song, Meng Jiang, Daniel Klein, Matei Zaharia, Karel D'Oosterlinck, Christopher Potts, Omar Khattab
2025 — conf
PAPILLON: Privacy Preservation from Internet-based and Local Language Model Ensembles.
NAACL (Long Papers)
Siyan Li, Vethavikashini Chithrra Raghuram, Omar Khattab, Julia Hirschberg, Zhou Yu
2025 J jnl
Reasoning-Intensive Regression.
CoRR
Diane Tchuindjo, Omar Khattab
2025 J jnl
Recursive Language Models.
CoRR
Alex L. Zhang, Tim Kraska, Omar Khattab
2025 A* conf
WARP: An Efficient Engine for Multi-Vector Retrieval.
SIGIR
Jan Luca Scheerer, Matei Zaharia, Christopher Potts, Gustavo Alonso, Omar Khattab
2025 J jnl
WARP: An Efficient Engine for Multi-Vector Retrieval.
CoRR
Jan Luca Scheerer, Matei Zaharia, Christopher Potts, Gustavo Alonso, Omar Khattab
2024 — conf
ARES: An Automated Evaluation Framework for Retrieval-Augmented Generation Systems.
NAACL-HLT
Jon Saad-Falcon, Omar Khattab, Christopher Potts, Matei Zaharia
2024 — conf
Assisting in Writing Wikipedia-like Articles From Scratch with Large Language Models.
NAACL-HLT
Yijia Shao, Yucheng Jiang, Theodore A. Kanell, Peter Xu, Omar Khattab, Monica S. Lam
2024 J jnl
Assisting in Writing Wikipedia-like Articles From Scratch with Large Language Models.
CoRR
Yijia Shao, Yucheng Jiang, Theodore A. Kanell, Peter Xu, Omar Khattab, Monica S. Lam
2024 — conf
Backtracing: Retrieving the Cause of the Query.
EACL (Findings)
Rose E. Wang, Pawan Wirawarn, Omar Khattab, Noah D. Goodman, Dorottya Demszky
2024 J jnl
Backtracing: Retrieving the Cause of the Query.
CoRR
Rose E. Wang, Pawan Wirawarn, Omar Khattab, Noah D. Goodman, Dorottya Demszky
2024 J jnl
Building Efficient and Effective OpenQA Systems for Low-Resource Languages.
CoRR
Emrah Budur, Riza Özçelik, Dilara Soylu, Omar Khattab, Tunga Güngör, Christopher Potts
2024 J jnl
Building efficient and effective OpenQA systems for low-resource languages.
Knowl. Based Syst.
Emrah Budur, Riza Özçelik, Dilara Soylu, Omar Khattab, Tunga Güngör, Christopher Potts
2024 A* conf
DSPy: Compiling Declarative Language Model Calls into State-of-the-Art Pipelines.
ICLR
Omar Khattab, Arnav Singhvi, Paridhi Maheshwari, Zhiyuan Zhang, Keshav Santhanam, Sri Vardhamanan, Saiful Haq, Ashutosh Sharma, Thomas T. Joshi, Hanna Moazam, Heather Miller, Matei Zaharia, Christopher Potts
2024 J jnl
Drowning in Documents: Consequences of Scaling Reranker Inference.
CoRR
Mathew Jacob, Erik Lindgren, Matei Zaharia, Michael Carbin, Omar Khattab, Andrew Drozdov
2024 A* conf
Fine-Tuning and Prompt Optimization: Two Great Steps that Work Better Together.
EMNLP
Dilara Soylu, Christopher Potts, Omar Khattab
2024 J jnl
Fine-Tuning and Prompt Optimization: Two Great Steps that Work Better Together.
CoRR
Dilara Soylu, Christopher Potts, Omar Khattab
2024 J jnl
Grounding by Trying: LLMs with Reinforcement Learning-Enhanced Retrieval.
CoRR
Sheryl Hsu, Omar Khattab, Chelsea Finn, Archit Sharma
2024 J jnl
In-Context Learning for Extreme Multi-Label Classification.
CoRR
Karel D'Oosterlinck, Omar Khattab, François Remy, Thomas Demeester, Chris Develder, Christopher Potts
2024 — conf
IndicIRSuite: Multilingual Dataset and Neural Information Models for Indian Languages.
ACL (Short Papers)
Saiful Haq, Ashutosh Sharma, Omar Khattab, Niyati Chhaya, Pushpak Bhattacharyya
2024 J jnl
Label dependency modeling in Multi-Label Naïve Bayes through input space expansion.
PeerJ Comput. Sci.
P. K. A. Chitra, Saravana Balaji Balasubramanian, Omar Khattab, Mhd Omar Al-Kadri
2024 A* conf
Optimizing Instructions and Demonstrations for Multi-Stage Language Model Programs.
EMNLP
Krista Opsahl-Ong, Michael J. Ryan, Josh Purtell, David Broman, Christopher Potts, Matei Zaharia, Omar Khattab
2024 J jnl
Optimizing Instructions and Demonstrations for Multi-Stage Language Model Programs.
CoRR
Krista Opsahl-Ong, Michael J. Ryan, Josh Purtell, David Broman, Christopher Potts, Matei Zaharia, Omar Khattab
2024 J jnl
PAPILLON: PrivAcy Preservation from Internet-based and Local Language MOdel ENsembles.
CoRR
Li Siyan, Vethavikashini Chithrra Raghuram, Omar Khattab, Julia Hirschberg, Zhou Yu
2024 — conf
Problem-Oriented Segmentation and Retrieval: Case Study on Tutoring Conversations.
EMNLP (Findings)
Rose E. Wang, Pawan Wirawarn, Kenny Lam, Omar Khattab, Dorottya Demszky
2024 J jnl
Problem-Oriented Segmentation and Retrieval: Case Study on Tutoring Conversations.
CoRR
Rose E. Wang, Pawan Wirawarn, Kenny Lam, Omar Khattab, Dorottya Demszky
2024 J jnl
Prompts as Auto-Optimized Training Hyperparameters: Training Best-in-Class IR Models from Scratch with 10 Gold Labels.
CoRR
Jasper Xian, Saron Samuel, Faraz Khoubsirat, Ronak Pradeep, Md. Arafat Sultan, Radu Florian, Salim Roukos, Avirup Sil, Christopher Potts, Omar Khattab
2023 J jnl
ARES: An Automated Evaluation Framework for Retrieval-Augmented Generation Systems.
CoRR
Jon Saad-Falcon, Omar Khattab, Christopher Potts, Matei Zaharia
2023 — conf
Blockchain-Based Heuristic Study to Secure UAVs From GPS Spoofing Signals and External Attacks.
BCCA
Abdullatif Baba, Basil Alothman, Omar Khattab
2023 J jnl
DSPy Assertions: Computational Constraints for Self-Refining Language Model Pipelines.
CoRR
Arnav Singhvi, Manish Shetty, Shangyin Tan, Christopher Potts, Koushik Sen, Matei Zaharia, Omar Khattab
2023 J jnl
DSPy: Compiling Declarative Language Model Calls into Self-Improving Pipelines.
CoRR
Omar Khattab, Arnav Singhvi, Paridhi Maheshwari, Zhiyuan Zhang, Keshav Santhanam, Sri Vardhamanan, Saiful Haq, Ashutosh Sharma, Thomas T. Joshi, Hanna Moazam, Heather Miller, Matei Zaharia, Christopher Potts
2023 J jnl
Holistic Evaluation of Language Models.
Trans. Mach. Learn. Res.
Percy Liang, Rishi Bommasani, Tony Lee, Dimitris Tsipras, Dilara Soylu, Michihiro Yasunaga, Yian Zhang, Deepak Narayanan, Yuhuai Wu, Ananya Kumar, Benjamin Newman, Binhang Yuan, Bobby Yan, Ce Zhang, Christian Cosgrove, Christopher D. Manning, Christopher Ré, Diana Acosta-Navas, Drew A. Hudson, Eric Zelikman, Esin Durmus, Faisal Ladhak, Frieda Rong, Hongyu Ren, Huaxiu Yao, Jue Wang, Keshav Santhanam, Laurel J. Orr, Lucia Zheng, Mert Yüksekgönül, Mirac Suzgun, Nathan Kim, Neel Guha, Niladri S. Chatterji, Omar Khattab, Peter Henderson, Qian Huang, Ryan Chi, Sang Michael Xie, Shibani Santurkar, Surya Ganguli, Tatsunori Hashimoto, Thomas Icard, Tianyi Zhang, Vishrav Chaudhary, William Wang, Xuechen Li, Yifan Mai, Yuhui Zhang, Yuta Koreeda
2023 J jnl
Image and Data Mining in Reticular Chemistry Using GPT-4V.
CoRR
Zhiling Zheng, Zhiguo He, Omar Khattab, Nakul Rampal, Matei A. Zaharia, Christian Borgs, Jennifer T. Chayes, Omar M. Yaghi
2023 — conf
Moving Beyond Downstream Task Accuracy for Information Retrieval Benchmarking.
ACL (Findings)
Keshav Santhanam, Jon Saad-Falcon, Martin Franz, Omar Khattab, Avi Sil, Radu Florian, Md. Arafat Sultan, Salim Roukos, Matei Zaharia, Christopher Potts
2023 J jnl
Resources and Evaluations for Multi-Distribution Dense Information Retrieval.
CoRR
Soumya Chatterjee, Omar Khattab, Simran Arora
2023 A* conf
UDAPDR: Unsupervised Domain Adaptation via LLM Prompting and Distillation of Rerankers.
EMNLP
Jon Saad-Falcon, Omar Khattab, Keshav Santhanam, Radu Florian, Martin Franz, Salim Roukos, Avirup Sil, Md. Arafat Sultan, Christopher Potts
2023 J jnl
UDAPDR: Unsupervised Domain Adaptation via LLM Prompting and Distillation of Rerankers.
CoRR
Jon Saad-Falcon, Omar Khattab, Keshav Santhanam, Radu Florian, Martin Franz, Salim Roukos, Avirup Sil, Md. Arafat Sultan, Christopher Potts
2022 — conf
ColBERTv2: Effective and Efficient Retrieval via Lightweight Late Interaction.
NAACL-HLT
Keshav Santhanam, Omar Khattab, Jon Saad-Falcon, Christopher Potts, Matei Zaharia
2022 J jnl
Demonstrate-Search-Predict: Composing retrieval and language models for knowledge-intensive NLP.
CoRR
Omar Khattab, Keshav Santhanam, Xiang Lisa Li, David Hall, Percy Liang, Christopher Potts, Matei Zaharia
2022 A* conf
Hindsight: Posterior-guided training of retrievers for improved open-ended generation.
ICLR
Ashwin Paranjape, Omar Khattab, Christopher Potts, Matei Zaharia, Christopher D. Manning
2022 J jnl
Holistic Evaluation of Language Models.
CoRR
Percy Liang, Rishi Bommasani, Tony Lee, Dimitris Tsipras, Dilara Soylu, Michihiro Yasunaga, Yian Zhang, Deepak Narayanan, Yuhuai Wu, Ananya Kumar, Benjamin Newman, Binhang Yuan, Bobby Yan, Ce Zhang, Christian Cosgrove, Christopher D. Manning, Christopher Ré, Diana Acosta-Navas, Drew A. Hudson, Eric Zelikman, Esin Durmus, Faisal Ladhak, Frieda Rong, Hongyu Ren, Huaxiu Yao, Jue Wang, Keshav Santhanam, Laurel J. Orr, Lucia Zheng, Mert Yüksekgönül, Mirac Suzgun, Nathan Kim, Neel Guha, Niladri S. Chatterji, Omar Khattab, Peter Henderson, Qian Huang, Ryan Chi, Sang Michael Xie, Shibani Santurkar, Surya Ganguli, Tatsunori Hashimoto, Thomas Icard, Tianyi Zhang, Vishrav Chaudhary, William Wang, Xuechen Li, Yifan Mai, Yuhui Zhang, Yuta Koreeda
2022 A conf
Introducing Neural Bag of Whole-Words with ColBERTer: Contextualized Late Interactions using Enhanced Reduction.
CIKM
Sebastian Hofstätter, Omar Khattab, Sophia Althammer, Mete Sertkan, Allan Hanbury
2022 J jnl
Introducing Neural Bag of Whole-Words with ColBERTer: Contextualized Late Interactions using Enhanced Reduction.
CoRR
Sebastian Hofstätter, Omar Khattab, Sophia Althammer, Mete Sertkan, Allan Hanbury
2022 J jnl
Moving Beyond Downstream Task Accuracy for Information Retrieval Benchmarking.
CoRR
Keshav Santhanam, Jon Saad-Falcon, Martin Franz, Omar Khattab, Avirup Sil, Radu Florian, Md. Arafat Sultan, Salim Roukos, Matei Zaharia, Christopher Potts
2022 A conf
PLAID: An Efficient Engine for Late Interaction Retrieval.
CIKM
Keshav Santhanam, Omar Khattab, Christopher Potts, Matei Zaharia
2022 J jnl
PLAID: An Efficient Engine for Late Interaction Retrieval.
CoRR
Keshav Santhanam, Omar Khattab, Christopher Potts, Matei Zaharia
2021 A* conf
Baleen: Robust Multi-Hop Reasoning at Scale via Condensed Retrieval.
NeurIPS
Omar Khattab, Christopher Potts, Matei A. Zaharia
2021 J jnl
Baleen: Robust Multi-Hop Reasoning at Scale via Condensed Retrieval.
CoRR
Omar Khattab, Christopher Potts, Matei Zaharia
2021 J jnl
ColBERTv2: Effective and Efficient Retrieval via Lightweight Late Interaction.
CoRR
Keshav Santhanam, Omar Khattab, Jon Saad-Falcon, Christopher Potts, Matei Zaharia
2021 J jnl
Hindsight: Posterior-guided training of retrievers for improved open-ended generation.
CoRR
Ashwin Paranjape, Omar Khattab, Christopher Potts, Matei Zaharia, Christopher D. Manning
2021 A* conf
Learning Passage Impacts for Inverted Indexes.
SIGIR
Antonio Mallia, Omar Khattab, Torsten Suel, Nicola Tonellotto
2021 J jnl
Learning Passage Impacts for Inverted Indexes.
CoRR
Antonio Mallia, Omar Khattab, Nicola Tonellotto, Torsten Suel
2021 J jnl
On the Opportunities and Risks of Foundation Models.
CoRR
Rishi Bommasani, Drew A. Hudson, Ehsan Adeli, Russ B. Altman, Simran Arora, Sydney von Arx, Michael S. Bernstein, Jeannette Bohg, Antoine Bosselut, Emma Brunskill, Erik Brynjolfsson, Shyamal Buch, Dallas Card, Rodrigo Castellon, Niladri S. Chatterji, Annie S. Chen, Kathleen Creel, Jared Quincy Davis, Dorottya Demszky, Chris Donahue, Moussa Doumbouya, Esin Durmus, Stefano Ermon, John Etchemendy, Kawin Ethayarajh, Li Fei-Fei, Chelsea Finn, Trevor Gale, Lauren E. Gillespie, Karan Goel, Noah D. Goodman, Shelby Grossman, Neel Guha, Tatsunori Hashimoto, Peter Henderson, John Hewitt, Daniel E. Ho, Jenny Hong, Kyle Hsu, Jing Huang, Thomas Icard, Saahil Jain, Dan Jurafsky, Pratyusha Kalluri, Siddharth Karamcheti, Geoff Keeling, Fereshte Khani, Omar Khattab, Pang Wei Koh, Mark S. Krass, Ranjay Krishna, Rohith Kuditipudi, et al.
2021 J jnl
Relevance-guided Supervision for OpenQA with ColBERT.
Trans. Assoc. Comput. Linguistics
Omar Khattab, Christopher Potts, Matei Zaharia
2020 A* conf
ColBERT: Efficient and Effective Passage Search via Contextualized Late Interaction over BERT.
SIGIR
Omar Khattab, Matei Zaharia
2020 J jnl
ColBERT: Efficient and Effective Passage Search via Contextualized Late Interaction over BERT.
CoRR
Omar Khattab, Matei Zaharia
2020 A* conf
Finding the Best of Both Worlds: Faster and More Robust Top-k Document Retrieval.
SIGIR
Omar Khattab, Mohammad Hammoud, Tamer Elsayed
2020 J jnl
Relevance-guided Supervision for OpenQA with ColBERT.
CoRR
Omar Khattab, Christopher Potts, Matei Zaharia
2018 J jnl
LA3: A Scalable Link- and Locality-Aware Linear Algebra-Based Graph Analytics System.
Proc. VLDB Endow.
Muhammad Yousuf Ahmad, Omar Khattab, Arsal Malik, Ahmad Musleh, Mohammad Hammoud, Mücahid Kutlu, Mostafa Shehata, Tamer Elsayed
2018 A conf
PolyHJ: A Polymorphic Main-Memory Hash Join Paradigm for Multi-Core Machines.
CIKM
Omar Khattab, Mohammad Hammoud, Omar Shekfeh
2014 — conf
An Overview of Interworking Architectures in Heterogeneous Wireless Networks: Objectives, Features and Challenges.
INC
Omar Khattab, Omar Alani
2014 — conf
The design and calculation of algorithm for optimizing vertical handover performance.
CSNDSP
Omar Khattab, Omar Alani
2013 J jnl
A Survey on Media Independent Handover (MIH) and IP Multimedia Subsystem (IMS) in Heterogeneous Wireless Networks.
Int. J. Wirel. Inf. Networks
Omar Khattab, Omar Alani
2013 J jnl
I am 4 vho: new approach to improve seamless vertical hanover in heterogeneous wireless networks.
CoRR
Omar Khattab, Omar Alani
2013 — conf
Survey on Media Independent Handover (MIH) Approaches in Heterogeneous Wireless Networks.
EW
Omar Khattab, Omar Alani