7607 search results - page 352 / 1522 » Querying data provenance |
209
click to vote
SUTC
2006
IEEE
16 years 26 days ago
2006
IEEE
Energy management in sensor networks is crucial to prolong the network lifetime. Though existing sleep scheduling algorithms save energy, they lead to a large increase in end-to-e...
180
click to vote
SSD
2005
Springer
16 years 9 days ago
2005
Springer
Spatial data are particularly useful in mobile environments. However, due to the low bandwidth of most wireless networks, developing large spatial database applications becomes a c...
186
click to vote
SIGMOD
2010
ACM
15 years 11 months ago
2010
ACM
We propose a novel privacy-preserving distributed infrastructure in which data resides only with the publishers owning it. The infrastructure disseminates user queries to publishe...
167
click to vote
COMPGEOM
1994
ACM
15 years 11 months ago
1994
ACM
Ray (segment) shooting is the problem of determining the first intersection between a ray (directed line segment) and a collection of polygonal or polyhedral obstacles. In order t...
175
click to vote
AMAI
2005
Springer
15 years 6 months ago
2005
Springer
Mediator systems integrate distributed, heterogeneous and autonomous data sources, but their e ective use requires the solution of hard query optimization problems. This is usuall...