NDLI: Web 2.0, Language Resources and standards to automatically build a multilingual Named Entity Lexicon

Content Provider	Springer Nature Link
Author	Toral, Antonio Ferrández, Sergio Monachini, Monica Muñoz, Rafael
Copyright Year	2011
Abstract	This paper proposes to advance in the current state-of-the-art of automatic Language Resource (LR) building by taking into consideration three elements: (1) the knowledge available in existing LRs, (2) the vast amount of information available from the collaborative paradigm that has emerged from the Web 2.0 and (3) the use of standards to improve interoperability. We present a case study in which a set of LRs for different languages (WordNet for English and Spanish and Parole-Simple-Clips for Italian) are extended with Named Entities (NE) by exploiting Wikipedia and the aforementioned LRs. The practical result is a multilingual NE lexicon connected to these LRs and to two ontologies: SUMO and SIMPLE. Furthermore, the paper addresses an important problem which affects the Computational Linguistics area in the present, interoperability, by making use of the ISO LMF standard to encode this lexicon. The different steps of the procedure (mapping, disambiguation, extraction, NE identification and postprocessing) are comprehensively explained and evaluated. The resulting resource contains 974,567, 137,583 and 125,806 NEs for English, Spanish and Italian respectively. Finally, in order to check the usefulness of the constructed resource, we apply it into a state-of-the-art Question Answering system and evaluate its impact; the NE lexicon improves the system’s accuracy by 28.1%. Compared to previous approaches to build NE repositories, the current proposal represents a step forward in terms of automation, language independence, amount of NEs acquired and richness of the information represented.
Starting Page	383
Ending Page	419
Page Count	37
File Format	PDF
ISSN	1574020X
Journal	Computers and the Humanities
Volume Number	46
Issue Number	3
e-ISSN	15740218
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-06-18
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Language Resources Named Entities Web 2.0 Standards Languages and Literature Linguistics (general) Computer Science Computational Linguistics
Content Type	Text
Resource Type	Article
Subject	Education Library and Information Sciences Linguistics and Language

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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