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A brief survey on online analysis of movement data
Silva, Joaquim P.; Santos, Maribel Yasmina; Pires, João MouraThe increasing availability of mobility data and the awareness of its importance and value have been motivating many researchers to the development of models and tools for analyzing movement data. This paper presents a brief survey of significant research works about modeling, processing and visualization of data about moving objects. We identified some key research fields that will provide better features for ...
Automated traffic route identification through the shared nearest neighbour alg...
Santos, Maribel Yasmina; Silva, Joaquim P.; Pires, João Moura; Wachowicz, MónicaMany organisations need to extract useful information from huge amounts of movement data. One example is found in maritime transportation, where the automated identification of a diverse range of traffic routes is a key management issue for improving the maintenance of ports and ocean routes, and accelerating ship traffic. This paper addresses, in a first stage, the research challenge of developing an approach ...
Implementação eficiente do Shared Nearest Neighbour em dados espaciais
Faustino, Bruno; Pires, João Moura; Santos, Maribel YasminaA taxa de colecta de dados espaciais está a aumentar e os algoritmos de agrupamento tornam-se cada vez mais populares, pois não necessitam de informação a priori. Contudo, estes algoritmos requerem um tempo de execução significativo e várias corridas para alcançar os melhores resultados. O Shared Nearest Neighbour (SNN) é um algoritmo de agrupamento cuja complexidade temporal no pior caso é O(n2), comprometendo...
A brief survey on online analysis of movement data
Silva, Joaquim P.; Santos, Maribel Yasmina; Pires, João MouraThe increasing availability of mobility data and the awareness of its importance and value have been motivating many researchers to the development of models and tools for analyzing movement data. This paper presents a brief survey of significant research works about modeling, processing and visualization of data about moving objects. We identified some key research fields that will provide better features for ...
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