Consulta espacial preferencial por palavra-chave

• Autor(a) principal: Almeida, João Paulo Dias de
• Data de Publicação: 2015
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UEFS
• Texto Completo: http://localhost:8080/tede/handle/tede/308
• topic: Processamento de consultas; Bases de dados espaciais; Índices híbridos; Consultas preferenciais; Sistemas de informação; Recuperação de informação; Query processing; Spatial databases; Hybrid indexes; Preference queries; Information systems; Information retrieval; CIENCIAS EXATAS E DA TERRA::CIENCIA DA COMPUTACAO

With the popularity of devices that are able to annotate data with spatial information (latitude and longitude), the processing of spatial queries has received a lot of attention from the research community recently. In this dissertation, we study a new query type named Top-k Spatial Keyword Preference Query that selects objects of interest based on the textual relevance of other spatio-textual objects in their spatial neighborhood. This work introduces this new query type, presents three algorithms for processing the query efficiently and performs an experimental evaluation using real databases to study the performance of the proposed algorithms.