621 search results - page 35 / 125 » Efficient algorithms for minimizing tree pattern queries |
SIGMOD
2004
ACM
14 years 8 months ago
2004
ACM
Peer data management systems (PDMS) offer a flexible architecture for decentralized data sharing. In a PDMS, every peer is associated with a schema that represents the peer's...
KDD
2004
ACM
14 years 8 months ago
2004
ACM
In many applications that track and analyze spatiotemporal data, movements obey periodic patterns; the objects follow the same routes (approximately) over regular time intervals. ...
KDD
1999
ACM
14 years 9 days ago
1999
ACM
We introduce a new kind of patterns, called emerging patterns (EPs), for knowledge discovery from databases. EPs are defined as itemsets whose supports increase significantly from...
29
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LWA
2004
13 years 9 months ago
2004
Data mining on large relational databases has gained popularity and its significance is well recognized. However, the performance of SQL based data mining is known to fall behind ...
SIGMOD
2007
ACM
14 years 8 months ago
2007
ACM
This paper investigates a class of transform queries proposed by XQuery Update [6]. A transform query is defined in terms of XML update syntax. When posed on an XML tree T, it ret...