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Large Language Models (LLMs) have revolutionized natural language processing with their remarkable capabilities in text generation and reasoning. However, these models face critical challenges when deployed in real-world applications,…

Computation and Language · Computer Science 2025-09-16 Pengcheng Jiang , Siru Ouyang , Yizhu Jiao , Ming Zhong , Runchu Tian , Jiawei Han

The long-tail recommendation is a challenging task for traditional recommender systems, due to data sparsity and data imbalance issues. The recent development of large language models (LLMs) has shown their abilities in complex reasoning,…

Information Retrieval · Computer Science 2024-03-12 Junda Wu , Cheng-Chun Chang , Tong Yu , Zhankui He , Jianing Wang , Yupeng Hou , Julian McAuley

Fact-checking aims to verify the truthfulness of a claim based on the retrieved evidence. Existing methods typically follow a decomposition paradigm, in which a claim is broken down into sub-claims that are individually verified. However,…

Computation and Language · Computer Science 2026-01-26 Mingwei Sun , Qianlong Wang , Ruifeng Xu

Nowadays, Large Language Models (LLMs) have been gradually employed to solve complex tasks. To face the challenge, task decomposition has become an effective way, which proposes to divide a complex task into multiple simpler subtasks and…

Computation and Language · Computer Science 2025-04-14 Yiliu Sun , Yanfang Zhang , Zicheng Zhao , Sheng Wan , Dacheng Tao , Chen Gong

Chain-of-thought has been proven essential for enhancing the complex reasoning abilities of Large Language Models (LLMs), but it also leads to high computational costs. Recent advances have explored the method to route queries among…

Computation and Language · Computer Science 2025-12-05 Chenyang Shao , Xinyang Liu , Yutang Lin , Fengli Xu , Yong Li

Large language models (LLMs) achieve strong performance by generating long chains of thought, but longer traces always introduce redundant or ineffective reasoning steps. One typical behavior is that they often perform unnecessary…

Computation and Language · Computer Science 2026-01-13 Jinyi Han , Zixiang Di , Zishang Jiang , Ying Liao , Jiaqing Liang , Yongqi Wang , Yanghua Xiao

Large language models (LLMs) have become ubiquitous in practice and are widely used for generation tasks such as translation, summarization and instruction following. However, their enormous size and reliance on autoregressive decoding…

Machine Learning · Computer Science 2024-07-18 Benjamin Bergner , Andrii Skliar , Amelie Royer , Tijmen Blankevoort , Yuki Asano , Babak Ehteshami Bejnordi

Hallucinations pose a challenge to the application of large language models (LLMs) thereby motivating the development of metrics to evaluate factual precision. We observe that popular metrics using the Decompose-Then-Verify framework, such…

Computation and Language · Computer Science 2024-10-17 Zhengping Jiang , Jingyu Zhang , Nathaniel Weir , Seth Ebner , Miriam Wanner , Kate Sanders , Daniel Khashabi , Anqi Liu , Benjamin Van Durme

Large language models can deceive by subtly manipulating truthful information -- omitting key facts, shifting focus, or obscuring meaning -- making such behavior difficult to detect. Existing black-box methods rely on coarse-grained…

Computation and Language · Computer Science 2026-05-20 Linyue Cai , Samuel Yeh , Jwala Dhamala , Rahul Gupta , Sharon Li

Large Language Models (LLMs) encounter challenges in efficiently processing long-text queries, as seen in applications like enterprise document analysis and financial report comprehension. While conventional solutions employ long-context…

Computation and Language · Computer Science 2025-03-06 Yulong Hui , Yihao Liu , Yao Lu , Huanchen Zhang

Generating Chain-of-Thought (CoT) before deriving the answer can effectively improve the reasoning capabilities of large language models (LLMs) and significantly improve the accuracy of the generated answer. However, in most cases, the…

Computation and Language · Computer Science 2024-12-17 Yu Kang , Xianghui Sun , Liangyu Chen , Wei Zou

Long-context large language models (LLMs) hold promise for tasks such as question-answering (QA) over long documents, but they tend to miss important information in the middle of context documents (arXiv:2307.03172v3). Here, we introduce…

Computation and Language · Computer Science 2024-03-11 Devanshu Agrawal , Shang Gao , Martin Gajek

Large Language Models (LLMs) have demonstrated strong performance in handling complex tasks requiring both extensive knowledge and reasoning abilities. However, the existing LLM inference pipeline operates as an opaque process without…

Computation and Language · Computer Science 2025-05-16 Mingyu Jin , Weidi Luo , Sitao Cheng , Xinyi Wang , Wenyue Hua , Ruixiang Tang , William Yang Wang , Yongfeng Zhang

Large Language Models (LLMs) have demonstrated impressive ability in generation and reasoning tasks but struggle with handling up-to-date knowledge, leading to inaccuracies or hallucinations. Retrieval-Augmented Generation (RAG) mitigates…

Databases · Computer Science 2026-03-13 Ziting Wang , Haitao Yuan , Wei Dong , Gao Cong , Feifei Li

Abstractive compression utilizes smaller langauge models to condense query-relevant context, reducing computational costs in retrieval-augmented generation (RAG). However,retrieved documents often include information that is either…

Computation and Language · Computer Science 2025-11-19 Singon Kim , Gunho Jung , Seong-Whan Lee

The development of large language models (LLMs) has achieved superior performance in a range of downstream tasks, including LLM-based retrieval-augmented generation (RAG). The quality of generated content heavily relies on the usefulness of…

Computation and Language · Computer Science 2026-01-27 Fengran Mo , Zhan Su , Yuchen Hui , Jinghan Zhang , Jia Ao Sun , Zheyuan Liu , Chao Zhang , Tetsuya Sakai , Jian-Yun Nie

As generated text becomes more commonplace, it is increasingly important to evaluate how well-supported such text is by external knowledge sources. Many approaches for evaluating textual support rely on some method for decomposing text into…

Computation and Language · Computer Science 2024-03-19 Miriam Wanner , Seth Ebner , Zhengping Jiang , Mark Dredze , Benjamin Van Durme

LLMs have fundamentally transformed dense retrieval, upgrading backbones from discriminative encoders to generative architectures. However, a critical disconnect remains: while LLMs possess strong reasoning capabilities, current retrievers…

Computation and Language · Computer Science 2026-03-03 Jiajie Jin , Yanzhao Zhang , Mingxin Li , Dingkun Long , Pengjun Xie , Yutao Zhu , Zhicheng Dou

Multi-hop Question Answering (MHQA) aims to answer questions that require multi-step reasoning. It presents two key challenges: generating correct reasoning paths in response to the complex user queries, and accurately retrieving essential…

Computation and Language · Computer Science 2026-04-28 Yuqing Fu , Yimin Deng , Wanyu Wang , Yuhao Wang , Yejing Wang , Hongshi Liu , Yiqi Wang , Xiao Han , Maolin Wang , Guoshuai Zhao , Yi Chang , Xiangyu Zhao

Large Language Models (LMs) have achieved state-of-the-art performance on many Natural Language Processing (NLP) benchmarks. With the growing number of new benchmarks, we build bigger and more complex LMs. However, building new LMs may not…

Computation and Language · Computer Science 2022-10-28 Pruthvi Patel , Swaroop Mishra , Mihir Parmar , Chitta Baral