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Harrison Lee

4 accepted papers

2025

RLPF: Reinforcement Learning from Prediction Feedback for User Summarization with LLMs

AAAI 2025technical

LLM-powered personalization agent systems employ Large Language Models (LLMs) to predict users’ behavior from their past activities. However, their effectiveness often hinges on the ability to effectively leverage extensive, long user historical data due to its inherent noise and length of such data…

Cited by 2SourcePDFScholar
2024

RLAIF vs. RLHF: Scaling Reinforcement Learning from Human Feedback with AI Feedback

ICML 2024poster

Reinforcement learning from human feedback (RLHF) has proven effective in aligning large language models (LLMs) with human preferences, but gathering high-quality preference labels is expensive. RL from AI Feedback (RLAIF), introduced in Bai et al. (2022b), offers a promising alternative that trains…

Cited by 99SourcePDFScholar
2022

SGD-X: A Benchmark for Robust Generalization in Schema-Guided Dialogue Systems

AAAI 2022technical

Zero/few-shot transfer to unseen services is a critical challenge in task-oriented dialogue research. The Schema-Guided Dialogue (SGD) dataset introduced a paradigm for enabling models to support any service in zero-shot through schemas, which describe service APIs to models in natural language. We…

2022

Show, Don’t Tell: Demonstrations Outperform Descriptions for Schema-Guided Task-Oriented Dialogue

NAACL 2022long

Building universal dialogue systems that operate across multiple domains/APIs and generalize to new ones with minimal overhead is a critical challenge. Recent works have leveraged natural language descriptions of schema elements to enable such systems; however, descriptions only indirectly convey sc…

Cited by 34SourcePDFScholar