Towards A Streams-Based Framework for Defining Location-Based Queries

Xuegang Huang, Christian S. Jensen

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Abstrakt

An infrastructure is emerging that supports the delivery of on-line, location-enabled services to mobile users. Such services involve novel database queries, and the database research community is quite active in proposing techniques for the effi- cient processing of such queries. In parallel to this, the management of data streams has become an active area of research. While most research in mobile services concerns performance issues, this paper aims to establish a formal framework for defining the semantics of queries encountered in mobile services, most notably the so-called continuous queries that are particularly relevant in this context. Rather than inventing an entirely new framework, the paper proposes a framework that builds on concepts from data streams and temporal databases. Definitions of example queries demonstrates how the framework enables clear formulation of query semantics and the comparison of queries. The paper also proposes a categorization of location-based queries.
OriginalsprogEngelsk
TitelProceedings of the Second International Workshop on Spatio-Temporal Database Management
RedaktørerJörg Sander, Mario A. Nascimento
Antal sider8
Publikationsdato2004
Sider73-80
StatusUdgivet - 2004
BegivenhedWorkshop on spatio-temporal database manegement - STDBM'04  - Toronto, Canada
Varighed: 30 aug. 200430 aug. 2004
Konferencens nummer: 2

Konference

KonferenceWorkshop on spatio-temporal database manegement - STDBM'04 
Nummer2
LandCanada
ByToronto
Periode30/08/200430/08/2004

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