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Related papers: CoCoA: Confidence and Context-Aware Adaptive Decod…

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While Large Language Models (LLMs) excel in question-answering (QA) tasks, their real reasoning abilities on multiple evidence retrieval and integration on Multi-hop QA tasks remain less explored. Firstly, LLMs sometimes generate answers…

Computation and Language · Computer Science 2024-10-16 Jian Wu , Linyi Yang , Zhen Wang , Manabu Okumura , Yue Zhang

Large Language Models (LLMs) encounter significant challenges in long-sequence inference due to computational inefficiency and redundant processing, driving interest in context compression techniques. Existing methods often rely on token…

Computation and Language · Computer Science 2025-05-22 Huanxuan Liao , Wen Hu , Yao Xu , Shizhu He , Jun Zhao , Kang Liu

We introduce CoCo-LoRA, a multimodal, uncertainty-aware parameter-efficient fine-tuning method for text prediction tasks accompanied by audio context. Existing PEFT approaches such as LoRA are efficient but typically deterministic, while…

Machine Learning · Computer Science 2026-04-21 Habibeh Naderi , Behrouz Haji Soleimani , Stan Matwin

Decoding from large language models (LLMs) typically relies on fixed sampling hyperparameters (e.g., temperature, top-p), despite substantial variation in task difficulty and uncertainty across prompts and individual decoding steps. We…

Machine Learning · Computer Science 2026-03-17 Chloe H. Su , Zhe Ye , Samuel Tenka , Aidan Yang , Soonho Kong , Udaya Ghai

Resolving knowledge conflicts is a crucial challenge in Question Answering (QA) tasks, as the internet contains numerous conflicting facts and opinions. While some research has made progress in tackling ambiguous settings where multiple…

Computation and Language · Computer Science 2024-10-30 Sagi Shaier , Ari Kobren , Philip Ogren

Large Language Models (LLMs) frequently prioritize conflicting in-context information over pre-existing parametric memory, a phenomenon often termed sycophancy or compliance. However, the mechanistic realization of this behavior remains…

Machine Learning · Computer Science 2026-02-09 Long Zhang , Fangwei Lin

Large Language Models (LLMs) often exhibit behavioral artifacts such as laziness (premature truncation of responses or partial compliance with multi-part requests), decoding suboptimality (failure to select higher-quality sequences due to…

Artificial Intelligence · Computer Science 2025-12-25 Yiqing Ma , Jung-Hua Liu

Large Language Models (LLMs) often rely on test-time scaling via parallel decoding (for example, 512 samples) to boost reasoning accuracy, but this incurs substantial compute. We introduce CoRefine, a confidence-guided self-refinement…

Artificial Intelligence · Computer Science 2026-02-10 Chen Jin , Ryutaro Tanno , Tom Diethe , Philip Teare

Long-horizon reasoning in LLM-based agents often fails not from generative weakness but from insufficient verification of intermediate reasoning. Co-Sight addresses this challenge by turning reasoning into a falsifiable and auditable…

Artificial Intelligence · Computer Science 2025-10-27 Hongwei Zhang , Ji Lu , Shiqing Jiang , Chenxiang Zhu , Li Xie , Chen Zhong , Haoran Chen , Yurui Zhu , Yongsheng Du , Yanqin Gao , Lingjun Huang , Baoli Wang , Fang Tan , Peng Zou

Hallucinations, generating responses inconsistent with the visual input, remain a critical limitation of large vision-language models (LVLMs), especially in open-ended tasks such as image captioning and visual reasoning. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2026-01-12 Mehrdad Fazli , Bowen Wei , Ziwei Zhu

The rapid evolution of software libraries creates a significant challenge for Large Language Models (LLMs), whose static parametric knowledge often becomes stale post-training. While retrieval-augmented generation (RAG) is commonly used to…

Software Engineering · Computer Science 2026-04-13 Ahmed Nusayer Ashik , Shaowei Wang , Tse-Hsun Chen , Muhammad Asaduzzaman , Yuan Tian

Multimodal large language models (MLLMs) in long chain-of-thought reasoning often fail when different knowledge sources provide conflicting signals. We formalize these failures under a unified notion of knowledge conflict, distinguishing…

Artificial Intelligence · Computer Science 2026-02-17 Jing Tang , Kun Wang , Haolang Lu , Hongjin Chen , KaiTao Chen , Zhongxiang Sun , Qiankun Li , Lingjuan Lyu , Guoshun Nan , Zhigang Zeng

Knowledge-intensive language understanding tasks require Language Models (LMs) to integrate relevant context, mitigating their inherent weaknesses, such as incomplete or outdated knowledge. However, conflicting knowledge can be present in…

Computation and Language · Computer Science 2024-10-08 Sara Vera Marjanović , Haeun Yu , Pepa Atanasova , Maria Maistro , Christina Lioma , Isabelle Augenstein

Large Language Models are a promising tool for automated vulnerability detection, thanks to their success in code generation and repair. However, despite widespread adoption, a critical question remains: Are LLMs truly effective at…

Cryptography and Security · Computer Science 2025-04-21 Yue Li , Xiao Li , Hao Wu , Minghui Xu , Yue Zhang , Xiuzhen Cheng , Fengyuan Xu , Sheng Zhong

In this work we present the Consistency-Rebalanced Accuracy (CoRA) metric, improving the reliability of Large Language Model (LLM) scores computed on multiple choice (MC) benchmarks. Our metric explores the response consistency of the LLMs,…

Computation and Language · Computer Science 2025-12-01 Paulo Cavalin , Cassia Sanctos , Marcelo Grave , Claudio Pinhanez , Yago Primerano

Combinatorial optimization (CO) is essential for improving efficiency and performance in engineering applications. As complexity increases with larger problem sizes and more intricate dependencies, identifying the optimal solution become…

Computational Engineering, Finance, and Science · Computer Science 2025-10-30 Shuo Jiang , Min Xie , Jianxi Luo

Recent advancements in Large Language Models (LLMs) have pushed the boundaries of natural language processing, especially in long-context understanding. However, the evaluation of these models' long-context abilities remains a challenge due…

Computation and Language · Computer Science 2025-04-24 Cunxiang Wang , Ruoxi Ning , Boqi Pan , Tonghui Wu , Qipeng Guo , Cheng Deng , Guangsheng Bao , Xiangkun Hu , Zheng Zhang , Qian Wang , Yue Zhang

Communication remains the most significant bottleneck in the performance of distributed optimization algorithms for large-scale machine learning. In this paper, we propose a communication-efficient framework, CoCoA, that uses local…

We present MCQA, a learning-based algorithm for multimodal question answering. MCQA explicitly fuses and aligns the multimodal input (i.e. text, audio, and video), which forms the context for the query (question and answer). Our approach…

Computation and Language · Computer Science 2020-04-28 Abhishek Kumar , Trisha Mittal , Dinesh Manocha

Large Language Models (LLMs) are often augmented with external contexts, such as those used in retrieval-augmented generation (RAG). However, these contexts can be inaccurate or intentionally misleading, leading to conflicts with the…

Computation and Language · Computer Science 2025-03-18 Yukun Huang , Sanxing Chen , Hongyi Cai , Bhuwan Dhingra