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Zhengying Liu

14 accepted papers

2025

FormalAlign: Automated Alignment Evaluation for Autoformalization

ICLR 2025poster

Autoformalization aims to convert informal mathematical proofs into machine-verifiable formats, bridging the gap between natural and formal languages. However, ensuring semantic alignment between the informal and formalized statements remains challenging. Existing approaches heavily rely on manual v…

2025

ToolACE: Winning the Points of LLM Function Calling

ICLR 2025poster

Function calling significantly extends the application boundary of large language models (LLMs), where high-quality and diverse training data is critical for unlocking this capability. However, collecting and annotating real function-calling data is challenging, while synthetic data from existing pi…

Cited by 23SourcePDFScholar
2024

ATG: Benchmarking Automated Theorem Generation for Generative Language Models

NAACL 2024findings

Humans can develop new theorems to explore broader and more complex mathematical results.While current generative language models (LMs) have achieved significant improvement in automatically proving theorems, their ability to generate new or reusable theorems is still under-explored. Without the new…

2024

FVEL: Interactive Formal Verification Environment with Large Language Models via Theorem Proving

NeurIPS 2024poster

Formal verification (FV) has witnessed growing significance with current emerging program synthesis by the evolving large language models (LLMs). However, current formal verification mainly resorts to symbolic verifiers or hand-craft rules, resulting in limitations for extensive and flexible verific…

2024

Forward-Backward Reasoning in Large Language Models for Mathematical Verification

ACL 2024findings

Self-Consistency samples diverse reasoning chains with answers and chooses the final answer by majority voting. It is based on forward reasoning and cannot further improve performance by sampling more reasoning chains when saturated. To further boost performance, we introduce backward reasoning to v…

Cited by 23SourcePDFScholar
2024

Gaining Wisdom from Setbacks: Aligning Large Language Models via Mistake Analysis

ICLR 2024poster

The rapid development of large language models (LLMs) has not only provided numerous opportunities but also presented significant challenges. This becomes particularly evident when LLMs inadvertently generate harmful or toxic content, either unintentionally or because of intentional inducement. Exis…

Cited by 36SourcePDFScholar
2024

LEGO-Prover: Neural Theorem Proving with Growing Libraries

ICLR 2024oral

Despite the success of large language models (LLMs), the task of theorem proving still remains one of the hardest reasoning tasks that is far from being fully solved. Prior methods using language models have demonstrated promising results, but they still struggle to prove even middle school level th…

2024

Large Language Models as Automated Aligners for benchmarking Vision-Language Models

ICLR 2024poster

With the advancements in Large Language Models (LLMs), Vision-Language Models (VLMs) have reached a new level of sophistication, showing notable competence in executing intricate cognition and reasoning tasks. However, existing evaluation benchmarks, primarily relying on rigid, hand-crafted datasets…

Cited by 9SourcePDFScholar
2024

MUSTARD: Mastering Uniform Synthesis of Theorem and Proof Data

ICLR 2024spotlight

Recent large language models (LLMs) have witnessed significant advancement in various tasks, including mathematical reasoning and theorem proving. As these two tasks require strict and formal multi-step inference, they are appealing domains for exploring the reasoning ability of LLMs but still face…

2024

MetaMath: Bootstrap Your Own Mathematical Questions for Large Language Models

ICLR 2024spotlight

Large language models (LLMs) have pushed the limits of natural language understanding and exhibited excellent problem-solving ability. Despite the great success, most existing open-source LLMs (\eg, LLaMA-2) are still far away from satisfactory for solving mathematical problems due to the complex re…

2024

Proving Theorems Recursively

NeurIPS 2024poster

Recent advances in automated theorem proving leverages language models to explore expanded search spaces by step-by-step proof generation. However, such approaches are usually based on short-sighted heuristics (e.g., log probability or value function scores) that potentially lead to suboptimal or ev…

2023

DT-Solver: Automated Theorem Proving with Dynamic-Tree Sampling Guided by Proof-level Value Function

ACL 2023long

Recent advances in neural theorem-proving resort to large language models and tree searches. When proving a theorem, a language model advises single-step actions based on the current proving state and the tree search finds a sequence of correct steps using actions given by the language model. Howeve…

Cited by 35SourcePDFScholar
2023

TRIGO: Benchmarking Formal Mathematical Proof Reduction for Generative Language Models

EMNLP 2023long main

Automated theorem proving (ATP) has become an appealing domain for exploring the reasoning ability of the recent successful generative language models. However, current ATP benchmarks are mainly focus on symbolic inference, but rarely involve the understanding of complex number combination reasoni…

Cited by 0SourcecodeScholar
2020

Deep Statistical Solvers

NeurIPS 2020poster

This paper introduces Deep Statistical Solvers (DSS), a new class of trainable solvers for optimization problems, arising e.g., from system simulations. The key idea is to learn a solver that generalizes to a given distribution of problem instances. This is achieved by directly using as loss the obj…