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Ontologies are essential for structuring domain knowledge, improving accessibility, sharing, and reuse. However, traditional ontology construction relies on manual annotation and conventional natural language processing (NLP) techniques,…

Artificial Intelligence · Computer Science 2026-02-03 Xuan Liu , Ziyu Li , Mu He , Ziyang Ma , Xiaoxu Wu , Gizem Yilmaz , Yiyuan Xia , Bingbing Li , He Tan , Jerry Ying Hsi Fuh , Wen Feng Lu , Anders E. W. Jarfors , Per Jansson

Hierarchical domain-specific classification schemas (or subject heading vocabularies) are often used to identify, classify, and disambiguate concepts that occur in scholarly articles. In this work, we develop, apply, and evaluate a…

Social and Information Networks · Computer Science 2021-09-13 Kanyao Han , Pingjing Yang , Shubhanshu Mishra , Jana Diesner

We describe a new method for visualizing topics, the distributions over terms that are automatically extracted from large text corpora using latent variable models. Our method finds significant $n$-grams related to a topic, which are then…

Machine Learning · Statistics 2009-07-07 David M. Blei , John D. Lafferty

When working with a new dataset, it is important to first explore and familiarize oneself with it, before applying any advanced machine learning algorithms. However, to the best of our knowledge, no tools exist that quickly and reliably…

Computation and Language · Computer Science 2017-07-18 Franziska Horn , Leila Arras , Grégoire Montavon , Klaus-Robert Müller , Wojciech Samek

Discourse relations are typically modeled as a discrete class that characterizes the relation between segments of text (e.g. causal explanations, expansions). However, such predefined discrete classes limits the universe of potential…

Computation and Language · Computer Science 2023-03-01 Youngseo Son , Vasudha Varadarajan , H Andrew Schwartz

Online user profiling is a very active research field, catalyzing great interest by both scientists and practitioners. In this paper, in particular, we look at approaches able to mine social media activities of users to create a rich user…

Information Retrieval · Computer Science 2018-09-27 Christian Torrero , Carlo Caprini , Daniele Miorandi

Recent works show that discourse analysis benefits from modeling intra- and inter-sentential levels separately, where proper representations for text units of different granularities are desired to capture both the meaning of text units and…

Computation and Language · Computer Science 2022-05-05 Yifei Zhou , Yansong Feng

Many professional services are provided through text and voice systems, from voice calls over the internet to messaging and emails. There is a growing need for both individuals and organizations to understand these online conversations…

Human-Computer Interaction · Computer Science 2019-05-16 Joshua Y. Kim , Rafael A. Calvo , Kalina Yacef , N. J. Enfield

Concept-based interpretability for Convolutional Neural Networks (CNNs) aims to align internal model representations with high-level semantic concepts, but existing approaches largely overlook the semantic roles of individual filters and…

Machine Learning · Computer Science 2025-09-24 Xinyu Mu , Hui Dou , Furao Shen , Jian Zhao

A typical IR system that delivers and stores information is affected by problem of matching between user query and available content on web. Use of Ontology represents the extracted terms in form of network graph consisting of nodes, edges,…

Information Retrieval · Computer Science 2017-03-23 Gagandeep Singh Narula , Vishal Jain

Human knowledge is made up of the conceptual structures of many communities of interest. In order to establish coherence in human knowledge representation, it is important to enable communication between the conceptual structures of…

Logic in Computer Science · Computer Science 2024-04-23 Robert E. Kent

Retrieve information resources made by the machine processing may refer to multiple sources. A personal web as part of information resources in the Internet requires a feature that can be understood by computer machines. Therefore, in this…

Digital Libraries · Computer Science 2013-12-23 Istiadi , Azhari

Forum threads are lengthy and rich in content. Concise thread summaries will benefit both newcomers seeking information and those who participate in the discussion. Few studies, however, have examined the task of forum thread summarization.…

Computation and Language · Computer Science 2018-12-31 Sansiri Tarnpradab , Fei Liu , Kien A. Hua

Understanding large ontologies is still an issue, and has an impact on many ontology engineering tasks. We describe a novel method for identifying and extracting conceptual components from domain ontologies, which are used to understand and…

Artificial Intelligence · Computer Science 2021-11-05 Luigi Asprino , Valentina Anita Carriero , Valentina Presutti

In many applications, ideas that are described by a set of words often flow between different groups. To facilitate users in analyzing the flow, we present a method to model the flow behaviors that aims at identifying the lead-lag…

Social and Information Networks · Computer Science 2015-12-15 Yangxin Zhong , Shixia Liu , Xiting Wang , Jiannan Xiao , Yangqiu Song

The design of dialogue flows is a critical but time-consuming task when developing task-oriented dialogue (TOD) systems. We propose an approach for the unsupervised discovery of flows from dialogue history, thus making the process…

Computation and Language · Computer Science 2024-05-03 Patrícia Ferreira , Daniel Martins , Ana Alves , Catarina Silva , Hugo Gonçalo Oliveira

Analyzing ideological discourse even in the age of LLMs remains a challenge, as these models often struggle to capture the key elements that shape real-world narratives. Specifically, LLMs fail to focus on characteristic elements driving…

Computation and Language · Computer Science 2025-04-11 Nishanth Nakshatri , Nikhil Mehta , Siyi Liu , Sihao Chen , Daniel J. Hopkins , Dan Roth , Dan Goldwasser

Event classification can add valuable information for semantic search and the increasingly important topic of fact validation in news. So far, only few approaches address image classification for newsworthy event types such as natural…

Computer Vision and Pattern Recognition · Computer Science 2020-11-11 Eric Müller-Budack , Matthias Springstein , Sherzod Hakimov , Kevin Mrutzek , Ralph Ewerth

Sentence extraction based summarization methods has some limitations as it doesn't go into the semantics of the document. Also, it lacks the capability of sentence generation which is intuitive to humans. Here we present a novel method to…

Computation and Language · Computer Science 2014-06-06 Divyanshu Bhartiya , Ashudeep Singh

A creative idea is often born from transforming, combining, and modifying ideas from existing visual examples capturing various concepts. However, one cannot simply copy the concept as a whole, and inspiration is achieved by examining…

Computer Vision and Pattern Recognition · Computer Science 2023-06-01 Yael Vinker , Andrey Voynov , Daniel Cohen-Or , Ariel Shamir