LABAS-TS A system for assisting labeling of training sets for text classification

Alejandro Sierra-Múnera, Alexandra Pomares-Quimbaya, Rafael Andrés González Rivera, Julián Camilo Daza Rodríguez, Oscar Mauricio Muñoz Velandia, Angel Alberto Garcia Peña

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Most text classification techniques rely on the existence of training data sets that are required to build models. However, in many text classification projects, the availability of previously labeled texts is not frequent due to differences in language (e.g. Spanish), domain (e.g. healthcare) and regional or institutional written culture (e.g. specific hospital). In order to contribute to dealing with this problem, this paper presents LABAS-TS, a web-enabled system for assisting the open, collaborative labeling of training sets for text classification. LABAS-TS is framed within a named entity recognition approach that identifies important entities from a domain-specific corpus, based on gazetteers, and uses a language specific sentence analyzer that extracts the portions of text that should be annotated. LABAS-TS was evaluated in the generation of training data sets to classify whether an electronic health record text contains a diagnosis, a test or a procedure, and demonstrated its utility in reducing the required time for building a reliable training set, with an average of eleven seconds between two labels.

Original languageEnglish
Title of host publicationIC3K 2017 - Proceedings of the 9th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management
EditorsKecheng Liu, Ana Carolina Salgado, Jorge Bernardino, Joaquim Filipe, Joaquim Filipe
PublisherSciTePress
Pages174-180
Number of pages7
ISBN (Print)9789897582738
DOIs
StatePublished - 2017
Event9th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management, IC3K 2017 - Funchal, Madeira, Portugal
Duration: 01 Nov 201703 Nov 2017

Publication series

NameIC3K 2017 - Proceedings of the 9th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management
Volume3

Conference

Conference9th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management, IC3K 2017
Country/TerritoryPortugal
CityFunchal, Madeira
Period01/11/1703/11/17

Keywords

  • Labeling
  • Text classification
  • Training set

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