4137 search results - page 471 / 828 » Managing Expressions as Data in Relational Database Systems |
200
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KDD
2009
ACM
16 years 7 months ago
2009
ACM
Lately there exist increasing demands for online abnormality monitoring over trajectory streams, which are obtained from moving object tracking devices. This problem is challengin...
165
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SIGMOD
2002
ACM
16 years 7 months ago
2002
ACM
In this paper, we ask if the traditional relational query acceleration techniques of summary tables and covering indexes have analogs for branching path expression queries over tr...
259
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SIGMOD
2008
ACM
16 years 7 months ago
2008
ACM
Structured peer-to-peer (P2P) overlays have been successfully employed in many applications to locate content. However, they have been less effective in handling massive amounts o...
281
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SIGMOD
2009
ACM
16 years 7 months ago
2009
ACM
Schema evolution poses serious challenges in historical data management. Traditionally historical data have been archived either by (i) migrating them into the current schema vers...
274
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SIGMOD
2008
ACM
16 years 7 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...