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Zhoujun Cheng

13 accepted papers

2026

IsoCompute Playbook: Optimally Scaling Sampling Compute for LLM RL

ICML 2026poster

While scaling laws guide compute allocation for LLM pre-training, analogous prescriptions for reinforcement learning (RL) post-training of LLMs remain poorly understood. We study the compute-optimal allocation of sampling compute for on-policy RL methods in LLMs, framing scaling as a compute-constra…

Cited by 0SourceScholar
2025

BigCodeBench: Benchmarking Code Generation with Diverse Function Calls and Complex Instructions

ICLR 2025oral

Task automation has been greatly empowered by the recent advances in Large Language Models (LLMs) via Python code, where the tasks range from software engineering development to general-purpose reasoning. While current benchmarks have shown that LLMs can solve tasks using programs like human develop…

Cited by 609SourcePDFScholar
2025

Revisiting Reinforcement Learning for LLM Reasoning from A Cross-Domain Perspective

NeurIPS 2025poster

Reinforcement learning (RL) has shown promise in enhancing large language model (LLM) reasoning, yet progress towards broader capabilities is limited by the availability of high-quality, multi-domain datasets. This work introduces \ours, a 92K RL-for-reasoning dataset designed to address this gap, c…

Cited by 0SourceScholar
2024

Lemur: Harmonizing Natural Language and Code for Language Agents

ICLR 2024spotlight

We introduce Lemur and Lemur-Chat, openly accessible language models optimized for both natural language and coding capabilities to serve as the backbone of versatile language agents. The evolution from language chat models to functional language agents demands that models not only master human inte…

2024

OSWorld: Benchmarking Multimodal Agents for Open-Ended Tasks in Real Computer Environments

NeurIPS 2024poster

Autonomous agents that accomplish complex computer tasks with minimal human interventions have the potential to transform human-computer interaction, significantly enhancing accessibility and productivity. However, existing benchmarks either lack an interactive environment or are limited to environm…

2023

Binding Language Models in Symbolic Languages

ICLR 2023top-25%

Though end-to-end neural approaches have recently been dominating NLP tasks in both performance and ease-of-use, they lack interpretability and robustness. We propose Binder, a training-free neural-symbolic framework that maps the task input to a program, which (1) allows binding a unified API of la…

2022

FORTAP: Using Formulas for Numerical-Reasoning-Aware Table Pretraining

ACL 2022long

Tables store rich numerical data, but numerical reasoning over tables is still a challenge. In this paper, we find that the spreadsheet formula, a commonly used language to perform computations on numerical values in spreadsheets, is a valuable supervision for numerical reasoning in tables. Consider…

2022

HiTab: A Hierarchical Table Dataset for Question Answering and Natural Language Generation

ACL 2022long

Tables are often created with hierarchies, but existing works on table reasoning mainly focus on flat tables and neglect hierarchical tables. Hierarchical tables challenge numerical reasoning by complex hierarchical indexing, as well as implicit relationships of calculation and semantics. We present…

2022

TaCube: Pre-computing Data Cubes for Answering Numerical-Reasoning Questions over Tabular Data

EMNLP 2022main

Existing auto-regressive pre-trained language models (PLMs) like T5 and BART, have been well applied to table question answering by UNIFIEDSKG and TAPEX, respectively, and demonstrated state-of-the-art results on multiple benchmarks. However, auto-regressive PLMs are challenged by recent emerging nu…

2022

Table Pre-training: A Survey on Model Architectures, Pre-training Objectives, and Downstream Tasks

IJCAI 2022poster

Following the success of pre-training techniques in the natural language domain, a flurry of table pre-training frameworks have been proposed and have achieved new state-of-the-arts on various downstream tasks such as table question answering, table type recognition, column relation classification,…

Cited by 71SourcePDFScholar
2020

Human Correspondence Consensus for 3D Object Semantic Understanding

ECCV 2020poster

Semantic understanding of 3D objects is crucial in many applications such as object manipulation. However, it is hard to give a universal definition of point-level semantics that everyone would agree on. We observe that people have a consensus on semantic correspondences between two areas from diffe…

2020

KeypointNet: A Large-Scale 3D Keypoint Dataset Aggregated From Numerous Human Annotations

CVPR 2020poster

Detecting 3D objects keypoints is ofgreat interest to the areas of both graphics and computer vision. There have been several 2D and 3D keypoint datasets aiming to address this problem in a data-driven way. These datasets, however, either lack scalability or bring ambiguity to the definition of keyp…

Cited by 89PDFcodeScholar