O uso do sintagma nominal na recuperação de documentos: proposta de um mecanismo automático para classificação temática de textos digitais

• Ano de defesa: 2014
• Autor(a) principal: Agnaldo Lopes Martins
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; UFMG
• Palavras-chave em Português: Processamento da linguagem natural; Sintagmas nominais; Classificação de documentos; Sistemas de recuperação da informação; Indexação automática; Ciência da informação; Processamento da linguagem natural (Computação)
• Link de acesso: http://hdl.handle.net/1843/BUOS-9RQHC6

This thesis aimed to evaluate the use of the noun phrase as a data source for an automatic classification of text documents stored in digital format. Various technological tools that have transformed scientific articles in a list of noun phrases that have been used for a classifier system based on supervised learning training. Among the tools used the words were responsible for the identification and removal of noun phrases of corporas. For training the classifier machine the application SVMLight was used. The methodology was developed in two stages; the first qualitative test was performed when comparing the documents of the corpus; and in the second stage SVM training was conducted using a larger number of documents. At the end, several tests were performed and it is possible to demonstrate that the proposed methodology was able to classify documents with high precision.