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VLDB
2005
ACM
15 years 3 months ago
2005
ACM
Developing cost models for query optimization is significantly harder for XML queries than for traditional relational queries. The reason is that XML query operators are much mor...
ASPDAC
2004
ACM
15 years 3 months ago
2004
ACM
— We have developed the first real-time 3-D image sensor with VGA pixel resolution using mixed-signal techniques to achieve high-speed and high-accuracy range calculation based ...
SENSYS
2004
ACM
15 years 3 months ago
2004
ACM
Wireless sensor networks offer the potential to span and monitor large geographical areas inexpensively. Sensors, however, have significant power constraint (battery life), makin...
SP
2000
IEEE
15 years 2 months ago
2000
IEEE
It is desirable to store data on data storage servers such as mail servers and file servers in encrypted form to reduce security and privacy risks. But this usually implies that ...
SIGMOD
1996
ACM
15 years 2 months ago
1996
ACM
While much recent research has focussed on extending databases beyond the traditional relational model, relatively little has been done to develop database tools for querying data...