Papers by Ruoming Pang

6 papers
Improve Vision Language Model Chain-of-thought Reasoning (2025.acl-long)

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Challenge: Current training recipes often rely on datasets dominated by short annotations with limited rationales, hindering the models' ability to generalize to tasks requiring comprehensive reasoning.
Approach: They propose a two-stage post-training strategy that augments short answers with CoT reasoning generated by GPT-4o, enhancing the VLM's CoT capabilities through fine-tuning.
Outcome: The proposed strategy enhances the model's CoT capabilities through fine-tuning and reinforcement learning.
Can External Validation Tools Improve Annotation Quality for LLM-as-a-Judge? (2025.acl-long)

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Challenge: Pairwise feedback is widely used to evaluate and provide feedback to large language models (LLMs).
Approach: They propose a tool-using agentic system to provide higher quality feedback on three challenging response domains: long-form factual, math and code tasks.
Outcome: The proposed system can provide higher quality pairwise comparisons on three domains, independent of the LLM’s internal knowledge and biases.
MMAU: A Holistic Benchmark of Agent Capabilities Across Diverse Domains (2025.findings-naacl)

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Challenge: Existing benchmarks focus on specific application scenarios, emphasizing task completion but failing to dissect the underlying skills that drive these outcomes.
Approach: They propose a Massive Multitask Agent Understanding benchmark that evaluates LLMs across five domains and offline tasks.
Outcome: The Massive Multitask Agent Understanding (MMAU) benchmark evaluates models across five domains including Tool-use, Directed Acyclic Graph (DAG) QA, Data Science and Machine Learning coding, Contest-level programming and Mathematics.
ToolSandbox: A Stateful, Conversational, Interactive Evaluation Benchmark for LLM Tool Use Capabilities (2025.findings-naacl)

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Challenge: Recent advances in large language models have led to a growing interest in tool assisted LLMs . toolSandbox includes stateful tool execution, implicit state dependencies between tools .
Approach: a new tool-based evaluation tool is released to help LLMs evaluate their tool-use capabilities. a tool-driven evaluation tool includes stateful tool execution, implicit state dependencies between tools and a built-in user simulator.
Outcome: the toolSandbox evaluation benchmark shows that open source and proprietary models have a performance gap . the benchmarks show that even the most capable LLMs are challenged by state dependent tasks .
STAIR: Learning Sparse Text and Image Representation in Grounded Tokens (2023.emnlp-main)

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Challenge: State-of-the-art contrastive learning models like CLIP and ALIGN are less interpretable and suffer from inferior accuracy than dense representations.
Approach: They extend CLIP and ALIGN models to build a sparse semantic representation that is interpretable and easy to integrate with existing retrieval systems.
Outcome: The proposed model outperforms CLIP and ALIGN models on image and text retrieval tasks with a 4.9% and +4.3% improvement on COCO-5k textimage and imagetext retrieval respectively.
Monotonic Infinite Lookback Attention for Simultaneous Machine Translation (P19-1)

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Challenge: Simultaneous machine translation begins to translate each source sentence before the source speaker has finished speaking, with applications to live and streaming scenarios.
Approach: They propose a simultaneous translation system that learns an adaptive schedule with a neural machine translation model that attends over all source tokens read thus far.
Outcome: The proposed system can achieve latency-quality trade-offs favorable to a proposed wait-k strategy for many latency values.

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