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Zihe Liu

6 accepted papers

2026

Tricks or Traps? A Deep Dive into RL for LLM Reasoning

ICLR 2026poster

Reinforcement learning (RL) for LLM reasoning has rapidly emerged as a prominent research area, marked by a significant surge in related studies on both algorithmic innovations and practical applications. Despite this progress, several critical challenges remain, including the absence of standardize…

Cited by 0SourcecodeScholar
2025

Multi-Stage LLM Fine-Tuning with a Continual Learning Setting

NAACL 2025findings

In recent years, large language models (LLMs) have made significant progress in knowledge-intensive applications. However, when adapting them to specific domains, we may encounter a multi-stage continuous learning scenario, especially in cases where domain knowledge evolves rapidly.This issue severe…

Cited by 1SourcePDFScholar
2024

A Behavior-Aware Approach for Deep Reinforcement Learning in Non-stationary Environments without Known Change Points

IJCAI 2024poster

Deep reinforcement learning is used in various domains, but usually under the assumption that the environment has stationary conditions like transitions and state distributions. When this assumption is not met, performance suffers. For this reason, tracking continuous environmental changes and adapt…

Cited by 0SourcePDFScholar
2024

Towards Multi-Relational Multi-Hop Reasoning over Dense Temporal Knowledge Graphs

ACL 2024findings

Temporal knowledge graph reasoning has emerged as a crucial task for answering time-dependent questions within a knowledge graph (KG).Despite tremendous progress, the present research is impeded by the sparsity of a temporal KG and an over-reliance on simple single-relational reasoning patterns. To…