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In addition to the frequency of terms in a document collection, the distribution of terms plays an important role in determining the relevance of documents for a given search query. In this paper, term distribution analysis using Fourier…

Information Retrieval · Computer Science 2009-07-18 Patricio Galeas , Ralph Kretschmer , Bernd Freisleben

Determining whether a provided context contains sufficient information to answer a question is a critical challenge for building reliable question-answering systems. While simple prompting strategies have shown success on factual questions,…

Computation and Language · Computer Science 2026-03-24 Akriti Jain , Aparna Garimella

In this position paper we present a new approach for discovering some special classes of assertional knowledge in the text by using large RDF repositories, resulting in the extraction of new non-taxonomic ontological relations. Also we use…

Information Retrieval · Computer Science 2013-08-06 Meisam Booshehri , Abbas Malekpour , Peter Luksch , Kamran Zamanifar , Shahdad Shariatmadari

Semantic parsing methods are used for capturing and representing semantic meaning of text. Meaning representation capturing all the concepts in the text may not always be available or may not be sufficiently complete. Ontologies provide a…

Artificial Intelligence · Computer Science 2016-01-06 Janez Starc , Dunja Mladenić

Entity set expansion, aiming at expanding a small seed entity set with new entities belonging to the same semantic class, is a critical task that benefits many downstream NLP and IR applications, such as question answering, query…

Computation and Language · Computer Science 2020-07-01 Yunyi Zhang , Jiaming Shen , Jingbo Shang , Jiawei Han

In the context of the Competition on Legal Information Extraction/Entailment (COLIEE), we propose a method comprising the necessary steps for finding relevant documents to a legal question and deciding on textual entailment evidence to…

Information Retrieval · Computer Science 2016-09-06 Danilo S. Carvalho , Minh-Tien Nguyen , Tran Xuan Chien , Minh Le Nguyen

Corpus-based set expansion (i.e., finding the "complete" set of entities belonging to the same semantic class, based on a given corpus and a tiny set of seeds) is a critical task in knowledge discovery. It may facilitate numerous downstream…

Computation and Language · Computer Science 2019-10-21 Jiaming Shen , Zeqiu Wu , Dongming Lei , Jingbo Shang , Xiang Ren , Jiawei Han

This work falls in the areas of information retrieval and semantic web, and aims to improve the evaluation of web search tools. Indeed, the huge number of information on the web as well as the growth of new inexperienced users creates new…

Information Retrieval · Computer Science 2012-12-12 Abdelkrim Bouramoul , Mohamed-Khireddine Kholladi , Bich-Liên Doan

This work presents an unsupervised approach for improving WordNet that builds upon recent advances in document and sense representation via distributional semantics. We apply our methods to construct Wordnets in French and Russian,…

Computation and Language · Computer Science 2017-05-02 Mikhail Khodak , Andrej Risteski , Christiane Fellbaum , Sanjeev Arora

In settings from fact-checking to question answering, we frequently want to know whether a collection of evidence (premises) entails a hypothesis. Existing methods primarily focus on the end-to-end discriminative version of this task, but…

Computation and Language · Computer Science 2022-10-31 Kaj Bostrom , Zayne Sprague , Swarat Chaudhuri , Greg Durrett

Question Aware Open Information Extraction (Question aware Open IE) takes question and passage as inputs, outputting an answer tuple which contains a subject, a predicate, and one or more arguments. Each field of answer is a natural…

Computation and Language · Computer Science 2020-09-17 Martin Kuo , Yaobo Liang , Lei Ji , Nan Duan , Linjun Shou , Ming Gong , Peng Chen

Neural network-based methods represent the state-of-the-art in question generation from text. Existing work focuses on generating only questions from text without concerning itself with answer generation. Moreover, our analysis shows that…

Computation and Language · Computer Science 2018-03-13 Vishwajeet Kumar , Kireeti Boorla , Yogesh Meena , Ganesh Ramakrishnan , Yuan-Fang Li

We propose a new grammar-based language for defining information-extractors from documents (text) that is built upon the well-studied framework of document spanners for extracting structured data from text. While previously studied…

Databases · Computer Science 2023-01-25 Liat Peterfreund

While the body of research directed towards constructing and generating clarifying questions in mixed-initiative conversational search systems is vast, research aimed at processing and comprehending users' answers to such questions is…

Information Retrieval · Computer Science 2024-01-23 Ivan Sekulić , Weronika Łajewska , Krisztian Balog , Fabio Crestani

Text classification helps analyse texts for semantic meaning and relevance, by mapping the words against this hierarchy. An analysis of various types of texts is invaluable to understanding both their semantic meaning, as well as their…

Machine Learning · Computer Science 2022-11-16 Chaitanya Chadha , Vandit Gupta , Deepak Gupta , Ashish Khanna

Building machines that can understand text like humans is an AI-complete problem. A great deal of research has already gone into this, with astounding results, allowing everyday people to discuss with their telephones, or have their reading…

Information Retrieval · Computer Science 2017-09-13 Christina Lioma

Identifying mathematical relations expressed in text is essential to understanding a broad range of natural language text from election reports, to financial news, to sport commentaries to mathematical word problems. This paper focuses on…

Computation and Language · Computer Science 2016-09-29 Subhro Roy , Shyam Upadhyay , Dan Roth

While the abundance of rich and vast datasets across numerous fields has facilitated the advancement of natural language processing, sectors in need of specialized data types continue to struggle with the challenge of finding quality data.…

Computation and Language · Computer Science 2026-02-06 Hyeonseok Kang , Hyein Seo , Jeesu Jung , Sangkeun Jung , Du-Seong Chang , Riwoo Chung

Search engines rely heavily on term-based approaches that represent queries and documents as bags of words. Text---a document or a query---is represented by a bag of its words that ignores grammar and word order, but retains word frequency…

Information Retrieval · Computer Science 2017-11-17 Christophe Van Gysel

Entity resolution is a widely studied problem with several proposals to match records across relations. Matching textual content is a widespread task in many applications, such as question answering and search. While recent methods achieve…

Databases · Computer Science 2021-12-17 Naser Ahmadi , Hansjorg Sand , Paolo Papotti