← Search

Liheng Chen

8 accepted papers

2025

How Well Do LLMs Handle Cantonese? Benchmarking Cantonese Capabilities of Large Language Models

NAACL 2025findings

The rapid evolution of large language models (LLMs) has transformed the competitive landscape in natural language processing (NLP), particularly for English and other data-rich languages. However, underrepresented languages like Cantonese, spoken by over 85 million people, face significant developme…

2025

MoS: Unleashing Parameter Efficiency of Low-Rank Adaptation with Mixture of Shards

ICLR 2025poster

The rapid scaling of large language models necessitates more lightweight finetuning methods to reduce the explosive GPU memory overhead when numerous customized models are served simultaneously. Targeting more parameter-efficient low-rank adaptation (LoRA), parameter sharing presents a promising sol…

2025

OS-ATLAS: Foundation Action Model for Generalist GUI Agents

ICLR 2025spotlight

Existing efforts in building GUI agents heavily rely on the availability of robust commercial Vision-Language Models (VLMs) such as GPT-4o and GeminiProVision. Practitioners are often reluctant to use open-source VLMs due to their significant performance lag compared to their closed-source counterpa…

Cited by 29SourcePDFScholar
2025

OS-Genesis: Automating GUI Agent Trajectory Construction via Reverse Task Synthesis

ACL 2025long

Graphical User Interface (GUI) agents powered by Vision-Language Models (VLMs) have demonstrated human-like computer control capability. Despite their utility in advancing digital automation, the development of such agents faces a critical bottleneck: collecting high-quality trajectory data for trai…

Cited by 0SourcePDFScholar
2024

Diffusion of Thought: Chain-of-Thought Reasoning in Diffusion Language Models

NeurIPS 2024poster

Recently, diffusion models have garnered significant interest in the field of text processing due to their many potential advantages compared to conventional autoregressive models. In this work, we propose Diffusion-of-Thought (DoT), a novel approach that integrates diffusion models with Chain-of-T…

Cited by 9SourcePDFScholar
2024

LoRA Meets Dropout under a Unified Framework

ACL 2024findings

With the remarkable capabilities, large language models (LLMs) have emergedas essential elements in numerous NLP applications, while parameter-efficientfinetuning, especially LoRA, has gained popularity as a lightweight approachfor model customization. Meanwhile, various dropout methods, initially d…

Cited by 11SourcePDFScholar
2024

PRoLoRA: Partial Rotation Empowers More Parameter-Efficient LoRA

ACL 2024long

With the rapid scaling of large language models (LLMs), serving numerouslow-rank adaptations (LoRAs) concurrently has become increasingly impractical,leading to unaffordable costs and necessitating more parameter-efficientfinetuning methods. In this work, we introduce Partially Rotation-enhanced Low…

2020

Multi-Agent Determinantal Q-Learning

ICML 2020poster

Centralized training with decentralized execution has become an important paradigm in multi-agent learning. Though practical, current methods rely on restrictive assumptions to decompose the centralized value function across agents for execution. In this paper, we eliminate this restriction by propo…