Range Non-overlapping Indexing and Successive List Indexing. - Orgad Keller; Tsvi Kopelowitz; Moshe Lewenstein (WADS, 2007)

On the longest common parameterized subsequence. - Orgad Keller; Tsvi Kopelowitz; Moshe Lewenstein (Theor. Comput. Sci., 2009)

Approximate string matching with stuck address bits. - Amihood Amir; Estrella Eisenberg; Orgad Keller; Avivit Levy; Ely Porat (Theor. Comput. Sci., 2011)

Finding the Minimum-Weight k-Path. - Avinatan Hassidim; Orgad Keller; Moshe Lewenstein; Liam Roditty (WADS, 2013)

Generalized substring compression. - Orgad Keller; Tsvi Kopelowitz; Shir Landau Feibish; Moshe Lewenstein (Theor. Comput. Sci., 2014)

New Approximation for Borda Coalitional Manipulation. - Orgad Keller; Avinatan Hassidim; Noam Hazon (AAMAS, 2017)

New Approximations for Coalitional Manipulation in General Scoring Rules. - Orgad Keller; Avinatan Hassidim; Noam Hazon (CoRR, 2017)

Approximating Bribery in Scoring Rules. - Orgad Keller; Avinatan Hassidim; Noam Hazon (AAAI, 2018)

Fully Automatic Speaker Separation System, with Automatic Enrolling of Recurrent Speakers. - Raphael Cohen; Orgad Keller; Jason Levy; Russell Levy; Micha Breakstone; Amit Ashkenazi (INTERSPEECH, 2018)

New Approximations for Coalitional Manipulation in Scoring Rules. - Orgad Keller; Avinatan Hassidim; Noam Hazon (J. Artif. Intell. Res., 2019)

Approximating Weighted and Priced Bribery in Scoring Rules. - Orgad Keller; Avinatan Hassidim; Noam Hazon (J. Artif. Intell. Res., 2019)

Semantically Driven Sentence Fusion: Modeling and Evaluation. - Eyal Ben-David; Orgad Keller; Eric Malmi; Idan Szpektor; Roi Reichart (EMNLP (Findings), 2020)

Dynamic Composition for Conversational Domain Exploration. - Idan Szpektor; Deborah Cohen; Gal Elidan; Michael Fink; Avinatan Hassidim; Orgad Keller; Sayali Kulkarni; Eran Ofek; Sagie Pudinsky; Asaf Revach; Shimi Salant; Yossi Matias (WWW, 2020)

Targeted Negative Campaigning: Complexity and Approximations. - Avishai Zagoury; Orgad Keller; Avinatan Hassidim; Noam Hazon (AAAI, 2021)

Dynamic Planning in Open-Ended Dialogue using Reinforcement Learning. - Deborah Cohen; Moonkyung Ryu; Yinlam Chow; Orgad Keller; Ido Greenberg; Avinatan Hassidim; Michael Fink; Yossi Matias; Idan Szpektor; Craig Boutilier; Gal Elidan (CoRR, 2022)

Factually Consistent Summarization via Reinforcement Learning with Textual Entailment Feedback. - Paul Roit; Johan Ferret; Lior Shani; Roee Aharoni; Geoffrey Cideron; Robert Dadashi; Matthieu Geist; Sertan Girgin; Léonard Hussenot; Orgad Keller; Nikola Momchev; Sabela Ramos Garea; et al. (ACL (1), 2023)

On the Robustness of Dialogue History Representation in Conversational Question Answering: A Comprehensive Study and a New Prompt-based Method. - Zorik Gekhman; Nadav Oved; Orgad Keller; Idan Szpektor; Roi Reichart (Trans. Assoc. Comput. Linguistics, 2023)

Multi-turn Reinforcement Learning with Preference Human Feedback. - Lior Shani; Aviv Rosenberg 002; Asaf Cassel; Oran Lang; Daniele Calandriello; Avital Zipori; Hila Noga; Orgad Keller; Bilal Piot; Idan Szpektor; Avinatan Hassidim; Yossi Matias; et al. (NeurIPS, 2024)

Multi-turn Reinforcement Learning from Preference Human Feedback. - Lior Shani; Aviv Rosenberg 002; Asaf B. Cassel; Oran Lang; Daniele Calandriello; Avital Zipori; Hila Noga; Orgad Keller; Bilal Piot; Idan Szpektor; Avinatan Hassidim; Yossi Matias; et al. (CoRR, 2024)

Are LLMs Better than Reported? Detecting Label Errors and Mitigating Their Effect on Model Performance. - Omer Nahum; Nitay Calderon; Orgad Keller; Idan Szpektor; Roi Reichart (CoRR, 2024)