Real-Time Queries and Analysis on Moving Cars
Authors
Hermannsson, Johann Gunnar ; Olafsson, Thorir
Term
10. Term
Education
Publication year
2005
Abstract
Dette speciale præsenterer design og empirisk evaluering af en systemarkitektur, der lagrer personbilers kørehistorik i et datavarehus—et centralt datalager udviklet til at analysere store datamængder. Sammen med information om vejnettet gør disse historikker det muligt at køre realtidsforespørgsler, som udløses af indkommende GPS-signaler for straks at kontrollere, om afsenderen er på vej mod en trafikforsinkelse. Eksperimenter viser, at den foreslåede arkitektur har en rimelig ydeevne til denne opgave.
This thesis presents the design and empirical evaluation of a system architecture that stores the driving histories of personal cars in a data warehouse—a central data store built for analyzing large datasets. Combined with road network information, these histories enable real-time queries, which are triggered by incoming GPS signals to immediately check whether the sender is heading toward a traffic delay. Experiments demonstrate that the proposed architecture achieves reasonable performance for this task.
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