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We address the task of evidence retrieval for long document question answering, which involves locating relevant paragraphs within a document to answer a question. We aim to assess the applicability of large language models (LLMs) in the…

计算与语言 · 计算机科学 2023-11-23 Inderjeet Nair , Shwetha Somasundaram , Apoorv Saxena , Koustava Goswami

Modern organizations frequently rely on chat-based platforms (e.g., Slack, Microsoft Teams, and Discord) for day-to-day communication and decision-making. As conversations evolve, organizational knowledge can get buried, prompting repeated…

人机交互 · 计算机科学 2025-03-20 Sangwook Lee , Adnan Abbas , Yan Chen , Sang Won Lee

We consider the problem of better modeling query-cluster interactions to facilitate query focused multi-document summarization (QFS). Due to the lack of training data, existing work relies heavily on retrieval-style methods for estimating…

计算与语言 · 计算机科学 2020-04-08 Yumo Xu , Mirella Lapata

While there has been substantial progress in text comprehension through simple factoid question answering, more holistic comprehension of a discourse still presents a major challenge (Dunietz et al., 2020). Someone critically reflecting on…

计算与语言 · 计算机科学 2022-10-18 Wei-Jen Ko , Cutter Dalton , Mark Simmons , Eliza Fisher , Greg Durrett , Junyi Jessy Li

Many cultural institutions have made large digitized visual collections available online, often under permissible re-use licences. Creating interfaces for exploring and searching these collections is difficult, particularly in the absence…

计算机视觉与模式识别 · 计算机科学 2024-11-08 Taylor Arnold , Lauren Tilton

Scaling clustering algorithms to massive data sets is a challenging task. Recently, several successful approaches based on data summarization methods, such as coresets and sketches, were proposed. While these techniques provide provably…

机器学习 · 统计学 2018-02-21 Olivier Bachem , Mario Lucic , Silvio Lattanzi

The text clustering technique is an unsupervised text mining method which are used to partition a huge amount of text documents into groups. It has been reported that text clustering algorithms are hard to achieve better performance than…

计算与语言 · 计算机科学 2021-08-26 Jiaxuan Chen , Shenglin Gui

Interpretive scholars generate knowledge from text corpora by manually sampling documents, applying codes, and refining and collating codes into categories until meaningful themes emerge. Given a large corpus, machine learning could help…

Media content in large repositories usually exhibits multiple groups of strongly varying sizes. Media of potential interest often form notably smaller groups. Such media groups differ so much from the remaining data that it may be worthy to…

统计方法学 · 统计学 2017-10-06 Sarka Brodinova , Maia Zaharieva , Peter Filzmoser , Thomas Ortner , Christian Breiteneder

The sudden change of moving the majority of teaching online at Universities due to the global Covid-19 pandemic has caused an increased amount of workload for academics. One of the contributing factors is answering a high volume of queries…

机器学习 · 计算机科学 2020-11-17 Alexandra Gkolia , Nikhil Fernandes , Nicolas Pizzo , James Davenport , Akshar Nair

While large language models now handle million-token contexts, their capacity for reasoning across entire document repositories remains largely untested. Existing benchmarks are inadequate, as they are mostly limited to single long texts or…

计算与语言 · 计算机科学 2026-04-28 Zhiyuan Lu , Chenliang Li , Yingcheng Shi , Weizhou Shen , Ming Yan , Fei Huang

When dealing with large collections of documents, it is imperative to quickly get an overview of the texts' contents. In this paper we show how this can be achieved by using a clustering algorithm to identify topics in the dataset and then…

计算与语言 · 计算机科学 2017-07-20 Franziska Horn , Leila Arras , Grégoire Montavon , Klaus-Robert Müller , Wojciech Samek

This paper presents some experiments in clustering homogeneous XMLdocuments to validate an existing classification or more generally anorganisational structure. Our approach integrates techniques for extracting knowledge from documents with…

信息检索 · 计算机科学 2007-05-23 Thierry Despeyroux , Yves Lechevallier , Brigitte Trousse , Anne-Marie Vercoustre

Electronic Healthcare records contain large volumes of unstructured data in different forms. Free text constitutes a large portion of such data, yet this source of richly detailed information often remains under-used in practice because of…

计算与语言 · 计算机科学 2019-10-17 M. Tarik Altuncu , Erik Mayer , Sophia N. Yaliraki , Mauricio Barahona

This paper addresses a novel task of detecting sub-topic correspondence in a pair of text fragments, enhancing common notions of text similarity. This task is addressed by coupling corresponding term subsets through bipartite clustering.…

计算与语言 · 计算机科学 2007-05-23 Zvika Marx , Ido Dagan , Eli Shamir

Multiple clustering has gained significant attention in recent years due to its potential to reveal multiple hidden structures of data from different perspectives. The advent of deep multiple clustering techniques has notably advanced the…

计算机视觉与模式识别 · 计算机科学 2024-04-25 Jiawei Yao , Qi Qian , Juhua Hu

Clustering is a fundamental machine learning task which has been widely studied in the literature. Classic clustering methods follow the assumption that data are represented as features in a vectorized form through various representation…

机器学习 · 计算机科学 2022-06-16 Sheng Zhou , Hongjia Xu , Zhuonan Zheng , Jiawei Chen , Zhao li , Jiajun Bu , Jia Wu , Xin Wang , Wenwu Zhu , Martin Ester

We describe a open-domain information extraction method for extracting concept-instance pairs from an HTML corpus. Most earlier approaches to this problem rely on combining clusters of distributionally similar terms and concept-instance…

机器学习 · 计算机科学 2013-07-02 Bhavana Dalvi , William W. Cohen , Jamie Callan

Recently, the demand for psychological counseling has significantly increased as more individuals express concerns about their mental health. This surge has accelerated efforts to improve the accessibility of counseling by using large…

Retrieving external knowledge and prompting large language models with relevant information is an effective paradigm to enhance the performance of question-answering tasks. Previous research typically handles paragraphs from external…

计算与语言 · 计算机科学 2024-08-07 Tiezheng Guo , Chen Wang , Yanyi Liu , Jiawei Tang , Pan Li , Sai Xu , Qingwen Yang , Xianlin Gao , Zhi Li , Yingyou Wen