2298 search results - page 217 / 460 » Querying spatial patterns |
229
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ICDE
2004
IEEE
16 years 5 months ago
2004
IEEE
We describe and evaluate a query minimization technique that applies to XQueries, which are nested, perform arbitrary joins, and freely mix bag and set semantics. These features c...
109
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CIDR
2007
15 years 5 months ago
2007
We describe the design and implementation of the Cornell Cayuga System for scalable event processing. We present a query language based on Cayuga Algebra for naturally expressing ...
153
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ICIP
2008
IEEE
16 years 6 months ago
2008
IEEE
We consider the problem of reconstructing time sequences of spatially sparse signals (with unknown and time-varying sparsity patterns) from a limited number of linear "incohe...
137
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CHI
2005
ACM
16 years 4 months ago
2005
ACM
Visualization techniques have proven to be critical in helping crime analysis. By interviewing and observing Criminal Intelligence Officers (CIO) and civilian crime analysts at th...
131
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IVS
2007
15 years 4 months ago
2007
Understanding the spatial and temporal characteristics of individual and group behavior in social networks is a critical component of visual tools for intelligence analysis, emerg...