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Existing long-document question answering systems typically process texts as flat sequences or use heuristic chunking, which overlook the discourse structures that naturally guide human comprehension. We present a discourse-aware…

Information Retrieval · Computer Science 2026-05-08 Huiyao Chen , Yi Yang , Yinghui Li , Meishan Zhang , Baotian Hu , Min Zhang

While traditional research on text clustering has largely focused on grouping documents by topic, it is conceivable that a user may want to cluster documents along other dimensions, such as the authors mood, gender, age, or sentiment.…

Information Retrieval · Computer Science 2014-01-22 Sajib Dasgupta , Vincent Ng

Sequential recommendation systems aim to capture users' evolving preferences from their interaction histories. Recent reasoningenhanced methods have shown promise by introducing deliberate, chain-of-thought-like processes with intermediate…

Information Retrieval · Computer Science 2025-12-17 Yifan Shao , Peilin Zhou

Over the past years, semantic segmentation, as many other tasks in computer vision, benefited from the progress in deep neural networks, resulting in significantly improved performance. However, deep architectures trained with…

Computer Vision and Pattern Recognition · Computer Science 2022-02-02 Guanglei Yang , Enrico Fini , Dan Xu , Paolo Rota , Mingli Ding , Hao Tang , Xavier Alameda-Pineda , Elisa Ricci

Inference scaling methods for LLMs often rely on decomposing problems into steps (or groups of tokens), followed by sampling and selecting the best next steps. However, these steps and their sizes are often predetermined or manually…

Data wrangling is a time-consuming and challenging task in a data science pipeline. While many tools have been proposed to automate or facilitate data wrangling, they often misinterpret user intent, especially in complex tasks. We propose…

Human-Computer Interaction · Computer Science 2025-03-07 Wei-Hao Chen , Weixi Tong , Amanda Case , Tianyi Zhang

Intent discovery is the task of inferring latent intents from a set of unlabeled utterances, and is a useful step towards the efficient creation of new conversational agents. We show that recent competitive methods in intent discovery can…

Computation and Language · Computer Science 2023-06-01 Maarten De Raedt , Fréderic Godin , Thomas Demeester , Chris Develder

For complex segmentation tasks, the achievable accuracy of fully automated systems is inherently limited. Specifically, when a precise segmentation result is desired for a small amount of given data sets, semi-automatic methods exhibit a…

Human-Computer Interaction · Computer Science 2019-09-04 Mario Amrehn , Stefan Steidl , Reinier Kortekaas , Maddalena Strumia , Markus Weingarten , Markus Kowarschik , Andreas Maier

Modern NLP tasks increasingly rely on dense retrieval methods to access up-to-date and relevant contextual information. We are motivated by the premise that retrieval benefits from segments that can vary in size such that a content's…

Computation and Language · Computer Science 2024-06-26 André V. Duarte , João Marques , Miguel Graça , Miguel Freire , Lei Li , Arlindo L. Oliveira

Conversational assistants are being progressively adopted by the general population. However, they are not capable of handling complicated information-seeking tasks that involve multiple turns of information exchange. Due to the limited…

Information Retrieval · Computer Science 2019-01-14 Chen Qu , Liu Yang , Bruce Croft , Yongfeng Zhang , Johanne R. Trippas , Minghui Qiu

Deriving value from a conversational AI system depends on the capacity of a user to translate the prior knowledge into a configuration. In most cases, discovering the set of relevant turn-level speaker intents is often one of the key steps.…

Computation and Language · Computer Science 2024-10-22 Mrinal Rawat , Hithesh Sankararaman , Victor Barres

A server, which is to keep track of heavy document traffic, is unable to filter the documents that are most relevant and updated for continuous text search queries. This paper focuses on handling continuous text extraction sustaining high…

Information Retrieval · Computer Science 2013-11-21 Srivatsan Sridharan , Kausal Malladi , Yamini Muralitharan

Large deep learning models have achieved impressive performance across a range of applications. However, their large memory requirements, including parameter memory and activation memory, have become a significant challenge for their…

Performance · Computer Science 2024-07-10 Xuanlei Zhao , Shenggan Cheng , Guangyang Lu , Jiarui Fang , Haotian Zhou , Bin Jia , Ziming Liu , Yang You

In today's digitally driven world, dialogue systems play a pivotal role in enhancing user interactions, from customer service to virtual assistants. In these dialogues, it is important to identify user's goals automatically to resolve their…

Computation and Language · Computer Science 2024-11-19 Juan A. Rodriguez , Nicholas Botzer , David Vazquez , Christopher Pal , Marco Pedersoli , Issam Laradji

The rise of Large Language Models (LLMs) has sparked interest in their application to sequential recommendation tasks as they can provide supportive item information. However, due to the inherent complexities of sequential recommendation,…

Information Retrieval · Computer Science 2023-12-19 Yu Wang , Zhiwei Liu , Jianguo Zhang , Weiran Yao , Shelby Heinecke , Philip S. Yu

Novel intent discovery automates the process of grouping similar messages (questions) to identify previously unknown intents. However, current research focuses on publicly available datasets which have only the question field and…

Computation and Language · Computer Science 2023-05-10 Aleksandra Chrabrowa , Tsimur Hadeliya , Dariusz Kajtoch , Robert Mroczkowski , Piotr Rybak

Understanding and extracting of information from large documents, such as business opportunities, academic articles, medical documents and technical reports, poses challenges not present in short documents. Such large documents may be…

Computation and Language · Computer Science 2019-10-10 Muhammad Mahbubur Rahman , Tim Finin

Retrieval-Augmented Generation (RAG) has become a widely adopted paradigm for enhancing the reliability of large language models (LLMs). However, RAG systems are sensitive to retrieval strategies that rely on text chunking to construct…

Information Retrieval · Computer Science 2026-03-31 Sun Xu , Tongkai Xu , Baiheng Xie , Li Huang , Qiang Gao , Kunpeng Zhang

As web agents (e.g., Deep Research) routinely consume massive volumes of web pages to gather and analyze information, LLM context management -- under large token budgets and low signal density -- emerges as a foundational, high-importance,…

Information Retrieval · Computer Science 2025-12-09 Yihan Chen , Benfeng Xu , Xiaorui Wang , Zhendong Mao

Many computational linguistic methods have been proposed to study the information content of languages. We consider two interesting research questions: 1) how is information distributed over long documents, and 2) how does content…

Computation and Language · Computer Science 2023-09-13 Shaoxiong Ji , Wei Sun , Pekka Marttinen