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Automatic chat summarization can help people quickly grasp important information from numerous chat messages. Unlike conventional documents, chat logs usually have fragmented and evolving topics. In addition, these logs contain a quantity…

Computation and Language · Computer Science 2021-06-28 Yicheng Zou , Jun Lin , Lujun Zhao , Yangyang Kang , Zhuoren Jiang , Changlong Sun , Qi Zhang , Xuanjing Huang , Xiaozhong Liu

Text summarization aims to condense long documents and retain key information. Critical to the success of a summarization model is the faithful inference of latent representations of words or tokens in the source documents. Most recent…

Computation and Language · Computer Science 2022-03-16 Bo Pang , Erik Nijkamp , Wojciech Kryściński , Silvio Savarese , Yingbo Zhou , Caiming Xiong

Opinion summarization aims to profile a target by extracting opinions from multiple documents. Most existing work approaches the task in a semi-supervised manner due to the difficulty of obtaining high-quality annotation from thousands of…

Computation and Language · Computer Science 2021-10-19 Suyu Ge , Jiaxin Huang , Yu Meng , Sharon Wang , Jiawei Han

Numerical consistency across tables in disclosure documents is critical for ensuring accuracy, maintaining credibility, and avoiding reputational and economic risks. Automated tabular numerical cross-checking presents two significant…

Computation and Language · Computer Science 2025-06-17 Chaoxu Pang , Yixuan Cao , Ganbin Zhou , Hongwei Li , Ping Luo

Aspect-based summarization aims to generate summaries tailored to specific aspects, addressing the resource constraints and limited generalizability of traditional summarization approaches. Recently, large language models have shown promise…

Computation and Language · Computer Science 2025-04-18 Yichao Feng , Shuai Zhao , Yueqiu Li , Luwei Xiao , Xiaobao Wu , Anh Tuan Luu

Text summarization helps readers capture salient information from documents, news, interviews, and meetings. However, most state-of-the-art pretrained language models (LM) are unable to efficiently process long text for many summarization…

Computation and Language · Computer Science 2022-04-15 Yusen Zhang , Ansong Ni , Ziming Mao , Chen Henry Wu , Chenguang Zhu , Budhaditya Deb , Ahmed H. Awadallah , Dragomir Radev , Rui Zhang

Text summarization is a user-preference based task, i.e., for one document, users often have different priorities for summary. As a key aspect of customization in summarization, granularity is used to measure the semantic coverage between…

Computation and Language · Computer Science 2022-12-15 Ming Zhong , Yang Liu , Suyu Ge , Yuning Mao , Yizhu Jiao , Xingxing Zhang , Yichong Xu , Chenguang Zhu , Michael Zeng , Jiawei Han

Unsupervised methods are widely used to induce latent semantic structure from large text collections, yet their outputs often contain incoherent, redundant, or poorly grounded clusters that are difficult to validate without labeled data. We…

Computation and Language · Computer Science 2026-04-21 Tunazzina Islam

Although some recent works show potential complementarity among different state-of-the-art systems, few works try to investigate this problem in text summarization. Researchers in other areas commonly refer to the techniques of reranking or…

Computation and Language · Computer Science 2021-04-16 Yixin Liu , Zi-Yi Dou , Pengfei Liu

The task of automatic text summarization produces a concise and fluent text summary while preserving key information and overall meaning. Recent approaches to document-level summarization have seen significant improvements in recent years…

Computation and Language · Computer Science 2022-12-07 Gonçalo Raposo , Afonso Raposo , Ana Sofia Carmo

Can we automatically group images into semantically meaningful clusters when ground-truth annotations are absent? The task of unsupervised image classification remains an important, and open challenge in computer vision. Several recent…

Computer Vision and Pattern Recognition · Computer Science 2020-07-06 Wouter Van Gansbeke , Simon Vandenhende , Stamatios Georgoulis , Marc Proesmans , Luc Van Gool

Advancements in Large Language Models (LLMs) have extended their input context length, yet they still struggle with retrieval and reasoning in long-context inputs. Existing methods propose to utilize the prompt strategy and retrieval head…

Computation and Language · Computer Science 2025-05-16 Han Peng , Jinhao Jiang , Zican Dong , Wayne Xin Zhao , Lei Fang

Due to the exponential growth of information and the need for efficient information consumption the task of summarization has gained paramount importance. Evaluating summarization accurately and objectively presents significant challenges,…

Computation and Language · Computer Science 2024-12-31 Dong Yuan , Eti Rastogi , Fen Zhao , Sagar Goyal , Gautam Naik , Sree Prasanna Rajagopal

Multi-document summarization aims to obtain core information from a collection of documents written on the same topic. This paper proposes a new holistic framework for unsupervised multi-document extractive summarization. Our method…

Computation and Language · Computer Science 2023-09-11 Haopeng Zhang , Sangwoo Cho , Kaiqiang Song , Xiaoyang Wang , Hongwei Wang , Jiawei Zhang , Dong Yu

An important problem of the sequence-to-sequence neural models widely used in abstractive summarization is exposure bias. To alleviate this problem, re-ranking systems have been applied in recent years. Despite some performance…

Computation and Language · Computer Science 2023-05-18 Jeewoo Sul , Yong Suk Choi

We introduce a novel approach for long context summarisation, highlight-guided generation, that leverages sentence-level information as a content plan to improve the traceability and faithfulness of generated summaries. Our framework…

Computation and Language · Computer Science 2025-12-22 Xiaotang Du , Rohit Saxena , Laura Perez-Beltrachini , Pasquale Minervini , Ivan Titov

Automatic text summarization (TS) plays a pivotal role in condensing large volumes of information into concise, coherent summaries, facilitating efficient information retrieval and comprehension. This paper presents a novel framework for…

Computation and Language · Computer Science 2024-04-22 Bhavith Chandra Challagundla , Chakradhar Peddavenkatagari

Keyphrase extraction from a given document is the task of automatically extracting salient phrases that best describe the document. This paper proposes a novel unsupervised graph-based ranking method to extract high-quality phrases from a…

Information Retrieval · Computer Science 2022-01-27 Venktesh V , Mukesh Mohania , Vikram Goyal

Online information has increased tremendously in today's age of Internet. As a result, the need has arose to extract relevant content from the plethora of available information. Researchers are widely using automatic text summarization…

Social and Information Networks · Computer Science 2021-06-02 Mohd Khizir Siddiqui , Amreen Ahmad , Om Pal , Tanvir Ahmad

We propose a new fast fully unsupervised method to discover semantic patterns. Our algorithm is able to hierarchically find visual categories and produce a segmentation mask where previous methods fail. Through the modeling of what is a…

Computer Vision and Pattern Recognition · Computer Science 2021-02-25 Francesco Pelosin , Andrea Gasparetto , Andrea Albarelli , Andrea Torsello