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Published Articles >> Table of Contents >> Abstract
2004 IEEE International Conference on E-Commerce Technology (CEC'04)
pp. 16-23
Shingle-Based Query Indexing for Location-Based Mobile E-Commerce
Kun-Lung Wu, IBM T.J. Watson Research Center
Shyh-Kwei Chen, IBM T.J. Watson Research Center
Philip S. Yu, IBM T.J. Watson Research Center
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DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/ICECT.2004.1319713
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| Abstract |
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We present a shingle-based query index (SQI) for supporting
location-based services in mobile e-commerce. SQI
is used to efficiently identify moving objects that are currently
located inside a geographical region. A set of virtual
shingles is predefined, each with a unique ID. One or
more shingles are used to cover the geographical region defined by a range query, where the covering shingles may overlap with one another. SQI maintains a direct mapping
from individual shingles to the range queries that contain
them. The use of covering shingles has two important properties.
First, it does not impose any limit on the object moving
speed or direction. Second, it allows the reevaluation
of continual range queries to capitalize on the incremental
changes in object locations. Simulations are conducted
to evaluate the effectiveness of SQI and compare it with a
cell-based approach.
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 Additional Information
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Citation:
Kun-Lung Wu, Shyh-Kwei Chen, Philip S. Yu,
"Shingle-Based Query Indexing for Location-Based Mobile E-Commerce,"
cec,
pp. 16-23,
2004 IEEE International Conference on E-Commerce Technology (CEC'04),
2004
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