MODIS: A Moving Object
Database Interface System
Moving objects’ environments contain large
numbers of queries and continuously moving objects.
One of the problems faced while storing data of continuously
moving objects is the numerous updates required to
answer the queries proficiently and accurately. This
makes the database very bulky and results in a very
poor performance. One of the main objectives is to
optimize the number of updates to the database to
an optimal number so that the accuracy of the query
result is not compromised. Also, the number of wireless
updates from mobile devices to the server should be
minimized to reduce the wireless bandwidth consumption.
The indexing structure should provide rapid access
and efficient processing of data. In this paper, a
querying system, called Moving Object Database Interface
System (MODIS) that can answer three major temporal
query types, namely, instantaneous, continuous and
past queries has been discussed. Frequency of updates
is based on constraints over speed, direction and
location of the moving object to improve the accuracy
of the query processing. The Q-hash index is based
on a three-tier architecture comprising of the moving
object level, regional server level, and central repository
level.
Publications
2005 Deja Hepziba Francis, Sanjay Madria and Chaman
Sabharwal, MODIS: A Moving Object Database Interface
System, to appear in Network and Information System
Journal, Hermes Publications.
Resercher
Dr.
Sanjay Madria
Dr. Chaman Sabharwal
Deja Hepziba Francis (MS Thesis,2004)
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