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Retrieval-augmented generation from videos requires systems to retrieve relevant audiovisual evidence from large corpora and synthesize it into coherent, attributed text. Current approaches struggle at both ends: retrieval methods fail on…

The task of incomplete utterance rewriting has recently gotten much attention. Previous models struggled to extract information from the dialogue context, as evidenced by the low restoration scores. To address this issue, we propose a novel…

机器学习 · 计算机科学 2023-07-14 Yunshan Chen

Token-based video representation has emerged as a promising approach for enabling large language models (LLMs) to interpret video content. However, existing token reduction techniques, such as pruning and merging, often disrupt essential…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Haichao Zhang , Yun Fu

Typical techniques for video captioning follow the encoder-decoder framework, which can only focus on one source video being processed. A potential disadvantage of such design is that it cannot capture the multiple visual context…

计算机视觉与模式识别 · 计算机科学 2019-05-13 Wenjie Pei , Jiyuan Zhang , Xiangrong Wang , Lei Ke , Xiaoyong Shen , Yu-Wing Tai

The increasing use of machine learning models has amplified the demand for high-quality, large-scale multimodal datasets. However, the availability of such datasets, especially those combining acoustic, visual and textual data, remains…

多媒体 · 计算机科学 2025-09-09 Jorge E. León , Miguel Carrasco

Retrieval-augmented language models can better adapt to changes in world state and incorporate long-tail knowledge. However, most existing methods retrieve only short contiguous chunks from a retrieval corpus, limiting holistic…

计算与语言 · 计算机科学 2024-02-01 Parth Sarthi , Salman Abdullah , Aditi Tuli , Shubh Khanna , Anna Goldie , Christopher D. Manning

Dense video captioning is an extremely challenging task since accurate and coherent description of events in a video requires holistic understanding of video contents as well as contextual reasoning of individual events. Most existing…

计算机视觉与模式识别 · 计算机科学 2019-04-09 Jonghwan Mun , Linjie Yang , Zhou Ren , Ning Xu , Bohyung Han

We introduce a novel retrieval-augmented generation (RAG) framework tailored for multihop question answering. First, our system uses large language model (LLM) to decompose complex multihop questions into a sequence of single-hop…

计算与语言 · 计算机科学 2025-08-14 Seokgi Lee

Effective knowledge management is critical for preserving institutional expertise and improving the efficiency of workforce training in state transportation agencies. Traditional approaches, such as static documentation, classroom-based…

计算与语言 · 计算机科学 2026-03-05 Divija Amaram , Lu Gao , Gowtham Reddy Gudla , Tejaswini Sanjay Katale

In real-world software engineering tasks, solving a problem often requires understanding and modifying multiple functions, classes, and files across a large codebase. Therefore, on the repository level, it is crucial to extract the relevant…

软件工程 · 计算机科学 2024-09-25 Jicheng Wang , Yifeng He , Hao Chen

Efficient long-video understanding~(LVU) remains a challenging task in computer vision. Current long-context vision-language models~(LVLMs) suffer from information loss due to compression and brute-force downsampling. While…

计算机视觉与模式识别 · 计算机科学 2025-06-23 Huaying Yuan , Zheng Liu , Minghao Qin , Hongjin Qian , Yan Shu , Zhicheng Dou , Ji-Rong Wen , Nicu Sebe

Short answer assessment is a vital component of science education, allowing evaluation of students' complex three-dimensional understanding. Large language models (LLMs) that possess human-like ability in linguistic tasks are increasingly…

计算与语言 · 计算机科学 2025-06-05 Yucheng Chu , Peng He , Hang Li , Haoyu Han , Kaiqi Yang , Yu Xue , Tingting Li , Joseph Krajcik , Jiliang Tang

Patient-trial matching requires reasoning over long, heterogeneous electronic health records (EHRs) and complex eligibility criteria, posing significant challenges for scalability, generalization, and computational efficiency. Existing…

Frame-level autoregressive (frame-AR) models have achieved significant progress, enabling real-time video generation comparable to bidirectional diffusion models and serving as a foundation for interactive world models and game engines.…

计算机视觉与模式识别 · 计算机科学 2025-12-24 Tianrui Zhu , Shiyi Zhang , Zhirui Sun , Jingqi Tian , Yansong Tang

Using tools by Large Language Models (LLMs) is a promising avenue to extend their reach beyond language or conversational settings. The number of tools can scale to thousands as they enable accessing sensory information, fetching updated…

信息检索 · 计算机科学 2024-12-06 Mohammad Kachuee , Sarthak Ahuja , Vaibhav Kumar , Puyang Xu , Xiaohu Liu

Retrieval augmentation has become an effective solution to empower large language models (LLMs) with external and verified knowledge sources from the database, which overcomes the limitations and hallucinations of LLMs in handling…

信息检索 · 计算机科学 2023-11-21 Tong Wu , Yulei Qin , Enwei Zhang , Zihan Xu , Yuting Gao , Ke Li , Xing Sun

Generative Search Engine (GSE) leverages the Retrieval-Augmented Generation (RAG) technique and the Large Language Model (LLM) to integrate multi-source information and provide users with accurate and comprehensive responses. Unlike…

信息检索 · 计算机科学 2026-03-19 Xiaolu Chen , Jie Bao , Haojie Wu , Zhen Chen , Yong Liao

In this paper, the problem of describing visual contents of a video sequence with natural language is addressed. Unlike previous video captioning work mainly exploiting the cues of video contents to make a language description, we propose a…

计算机视觉与模式识别 · 计算机科学 2018-04-02 Bairui Wang , Lin Ma , Wei Zhang , Wei Liu

Retrieval-augmented generation (RAG) enhances large language models (LLMs) by incorporating external knowledge to generate a response within a context with improved accuracy and reduced hallucinations. However, multi-modal RAG systems face…

机器学习 · 计算机科学 2025-01-09 Matin Mortaheb , Mohammad A. Amir Khojastepour , Srimat T. Chakradhar , Sennur Ulukus

Retrieval-augmented generation (RAG) techniques leverage the in-context learning capabilities of large language models (LLMs) to produce more accurate and relevant responses. Originating from the simple 'retrieve-then-read' approach, the…

计算与语言 · 计算机科学 2024-07-16 Yunxiao Shi , Xing Zi , Zijing Shi , Haimin Zhang , Qiang Wu , Min Xu
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