Noun phase selection in automatic indexing

• Autor(a) principal: Nascimento, Gustavo Diniz do
• Data de Publicação: 2019
• Outros Autores: Correa, Renato Fernandes
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Encontros Bibli
• DOI: 10.5007/1518-2924.2019.e57927
• Texto Completo: https://periodicos.ufsc.br/index.php/eb/article/view/1518-2924.2019.e57927
• topic: Indexação automática; Sintagmas nominais; Seleção de sintagmas nominais; Língua portuguesa; Recuperação da informação; Automatic indexing; Noun phrases; Noun phrase selection; Portuguese language; Information retrieval

Objective: this study aims to synthetize and classify the noun phrases selection criteria present in methods for automatic indexing by noun phrases of texts written in Portuguese.Methods: The research methodology has an exploratory nature and bibliographic character, and has the content analysis as procedural method. The bases of the noun phrases selection methodologies are criteria as absolute frequency of occurrence, normalized frequency of occurrence, inverse document frequency, non-occurrence in list of stopwords, and the grammatical structure and level of noun phrases.Conclusions: As for the criteria scope, predominates in quantity those based on the noun phrases characteristics (grammatical structure, level, lexical content), in adoption predominates those based on the document content and the corpus content.Results: The main contribution of this work is the panoramic overview of the noun phrases selection criteria for texts written in the Portuguese idiom.