activity
20232026
most citedMinimizing Live Experiments in Recommender Systems: User Simulation to Evaluate Preference Elicitation Policies

5 citations · 10 across the 10 of their papers we have counts for

collaborators

10 papers

cs.LG2026

Diffusion Controller: Framework, Algorithms and Parameterization

Tong Yang, Moonkyung Ryu, Chih-Wei Hsu +4

Controllable diffusion generation often relies on various heuristics that are seemingly disconnected without a unified understanding. We bridge this gap with Diffusion Controller (…

cs.CL2025

Synthetic Dialogue Generation for Interactive Conversational Elicitation & Recommendation (ICER)

Moonkyung Ryu, Chih-Wei Hsu, Yinlam Chow +2

While language models (LMs) offer great potential for conversational recommender systems (CRSs), the paucity of public CRS data makes fine-tuning LMs for CRSs challenging. In respo…

cs.AI2025

Descriptive History Representations: Learning Representations by Answering Questions

Guy Tennenholtz, Jihwan Jeong, Chih-Wei Hsu +2

Effective decision making in partially observable environments requires compressing long interaction histories into informative representations. We introduce Descriptive History Re…

cs.CV2024

Preference Adaptive and Sequential Text-to-Image Generation

Ofir Nabati, Guy Tennenholtz, ChihWei Hsu +5

We address the problem of interactive text-to-image (T2I) generation, designing a reinforcement learning (RL) agent which iteratively improves a set of generated images for a user…

cs.IR2024★ 5 cited

Minimizing Live Experiments in Recommender Systems: User Simulation to Evaluate Preference Elicitation Policies

Chih-Wei Hsu, Martin Mladenov, Ofer Meshi +8

Evaluation of policies in recommender systems typically involves A/B testing using live experiments on real users to assess a new policy's impact on relevant metrics. This ``gold s…

cs.CL2024

Embedding-Aligned Language Models

Guy Tennenholtz, Yinlam Chow, Chih-Wei Hsu +3

We propose a novel approach for training large language models (LLMs) to adhere to objectives defined within a latent embedding space. Our method leverages reinforcement learning (…

cs.LG2024

DynaMITE-RL: A Dynamic Model for Improved Temporal Meta-Reinforcement Learning

Anthony Liang, Guy Tennenholtz, Chih-wei Hsu +3

We introduce DynaMITE-RL, a meta-reinforcement learning (meta-RL) approach to approximate inference in environments where the latent state evolves at varying rates. We model episod…

cs.IR2023

Preference Elicitation with Soft Attributes in Interactive Recommendation

Erdem Biyik, Fan Yao, Yinlam Chow +4

Preference elicitation plays a central role in interactive recommender systems. Most preference elicitation approaches use either item queries that ask users to select preferred it…

cs.AI2023

Factual and Personalized Recommendations using Language Models and Reinforcement Learning

Jihwan Jeong, Yinlam Chow, Guy Tennenholtz +4

Recommender systems (RSs) play a central role in connecting users to content, products, and services, matching candidate items to users based on their preferences. While traditiona…

cs.CL2023★ 5 cited

Demystifying Embedding Spaces using Large Language Models

Guy Tennenholtz, Yinlam Chow, Chih-Wei Hsu +6

Embeddings have become a pivotal means to represent complex, multi-faceted information about entities, concepts, and relationships in a condensed and useful format. Nevertheless, t…