1167 search results - page 87 / 234 » Substitution-closed pattern classes |
VIS
2007
IEEE
15 years 11 months ago
2007
IEEE
We present a novel approach for analyzing two-dimensional (2D) flow field data based on the idea of invariant moments. Moment invariants have traditionally been used in computer vi...
168
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ICDE
2008
IEEE
15 years 11 months ago
2008
IEEE
Abstract-- Current twig join algorithms incur high memory costs on queries that involve child-axis nodes. In this paper we provide an analytical explanation for this phenomenon. In...
164
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SIGMOD
2008
ACM
15 years 10 months ago
2008
ACM
Existing temporal pattern mining assumes that events do not have any duration. However, events in many real world applications have durations, and the relationships among these ev...
INFOCOM
2007
IEEE
15 years 4 months ago
2007
IEEE
— We consider the problem of aggregating data at a mobile fusion center (fusor) (eg. a PDA or a cellular phone) moving within a spatial region over which a wireless sensor networ...
ICMCS
2005
IEEE
15 years 3 months ago
2005
IEEE
Video annotation is typically performed by classifying video elements according to some pre-defined ontology of the video content domain. Ontologies are defined by establishing ...