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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

[en] LINGUISTIC BASIS FOR IDEA-ORIENTED SEARCH / [pt] AS BASES LINGÜÍSTICAS PARA A BUSCA ORIENTADA A IDÉIA

CAROLINA MONTE FERREIRA GONCALVES 27 September 2006 (has links)
[pt] A busca orientada a idéia é um novo paradigma para mecanismos de busca em acervos compostos por arquivos de texto. Esse paradigma visa resolver um problema comum aos mecanismos de busca: exigir que o usuário preveja as palavras contidas nos documentos que possam conter a informação que procura, impossibilitando-o, assim, de se concentrar diretamente na informação desejada. Buscando solucionar esse problema, são propostas as bases lingüísticas para o desenvolvimento de um modelo teórico preliminar que acrescente dados semânticos aos arquivos de texto. Nesse modelo, a informação semântica de um texto é representada através do que se chamou de estrutura de conceitos. O principal intuito das estruturas de conceitos é representar de uma mesma maneira frases que expressem o mesmo significado, ou seja, as paráfrases apresentam a mesma estrutura de conceitos. Serão expostos nesta dissertação os primeiros elementos do modelo em suas partes semântica, sintática e textual, além da integração entre as mesmas. A dissertação apresenta ainda um estudo de caso a fim de exemplificar o desenvolvimento de uma aplicação para busca de arquivos de texto em que essa tecnologia seria usada. / [en] The idea-oriented search is a new pattern for search engines whose databases are composed by text files. This pattern sets out to solve a usual problem for search engines: demanding that users foresee which words are contained in the desired document, keeping them from focusing on the information they are indeed seeking. To solve this problem, the linguistic bases for the development of a theoretical model that can add semantical data to the text files are laid down. In this model, the semantical information of a text is represented by what has been referred to as structure of concepts. The main goal of the structure of concepts is to give one single representation to sentences that express the same meaning. Thus, paraphrases present the same structure of concepts. In this dissertation, the first elements of this model are exposed in its semantical, syntactic and textual parts. Also present are the integration of these elements. A small case study is presented as well, with the intention of illustrating the development of an application for text files databases search engines in which this technology is used.

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