Suzanne K. Lander - Filosofia em nova chave

Processamento de consultas baseadas em palavras-chave sobre fluxos XML

XML streams have become a relevant research topic due to the widespread use of applications such as online news, RSS feeds, and dissemination systems. Such streams must be processed rapidly and without retention. Retaining streams could cause data loss due to the large data traffic in continuous processing. This context becomes more complex when thousands of queries must be evaluated simultaneo...

Uma Avaliação do Esquema de Gerenciamento de Chave Baseado em Identidade Identity Key Management

Security is one of the main issues in Mobile Ad Hoc Networks (MANETs). MANETs natural features make them highly vulnerable to several attacks ranging from the physical up to the application layer. There are several algorithms and protocols to deal with these threats. All of them have a common element, the use of cryptography. Among the cryptographic systems found in the literature, the identity...

2 “ Introduction ” to Filosofia e matematica

Mathematics has long been a preferential subject of reflection for philosophers, inspiring them since antiquity in developing their theories of knowledge and their metaphysical doctrines. Given the close connection between philosophy and mathematics, it is hardly surprising that some major philosophers, such as Descartes, Leibniz, Pascal and Lambert, have also been major mathematicians. In the ...

Consulta Espacial Preferencial por Palavra-chave

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 paper, 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 object...

The CG Mars Lander