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Evan Zheran Liu

6 accepted papers

2025

AutoBencher: Towards Declarative Benchmark Construction

ICLR 2025poster

We present AutoBencher, a declarative framework for automatic benchmark construction, and use it to scalably discover novel insights and vulnerabilities of existing language models. Concretely, given a few desiderata of benchmarks (e.g., question difficulty, topic salience), we operationalize each d…

Cited by 0SourcePDFScholar
2024

Learning to Explore in POMDPs with Informational Rewards

ICML 2024poster

Standard exploration methods typically rely on random coverage of the state space or coverage-promoting exploration bonuses. However, in partially observed settings, the biggest exploration challenge is often posed by the need to discover information-gathering strategies---e.g., an agent that has to…

Cited by 3SourcePDFScholar
2023

Simple Embodied Language Learning as a Byproduct of Meta-Reinforcement Learning

ICML 2023poster

Whereas machine learning models typically learn language by directly training on language tasks (e.g., next-word prediction), language emerges in human children as a byproduct of solving non-language tasks (e.g., acquiring food). Motivated by this observation, we ask: can embodied reinforcement lear…

Cited by 6SourcePDFScholar
2022

Giving Feedback on Interactive Student Programs with Meta-Exploration

NeurIPS 2022accept

Developing interactive software, such as websites or games, is a particularly engaging way to learn computer science. However, teaching and giving feedback on such software is time-consuming — standard approaches require instructors to manually grade student-implemented interactive programs. As a re…

2022

Learning Options via Compression

NeurIPS 2022accept

Identifying statistical regularities in solutions to some tasks in multi-task reinforcement learning can accelerate the learning of new tasks. Skill learning offers one way of identifying these regularities by decomposing pre-collected experiences into a sequence of skills. A popular approach to ski…

2018

Reinforcement Learning on Web Interfaces using Workflow-Guided Exploration

ICLR 2018poster

Reinforcement learning (RL) agents improve through trial-and-error, but when reward is sparse and the agent cannot discover successful action sequences, learning stagnates. This has been a notable problem in training deep RL agents to perform web-based tasks, such as booking flights or replying to e…