444 search results - page 23 / 89 » Instance optimal query processing in spatial networks |
SSD
2005
Springer
14 years 1 months ago
2005
Springer
Abstract. A top-k OLAP query groups measures with respect to some abstraction level of interesting dimensions and selects the k groups with the highest aggregate value. An example ...
SIGMOD
2004
ACM
14 years 8 months ago
2004
ACM
Spatial Database Management Systems (SDBMS), e.g., Geographical Information Systems, that manage spatial objects such as points, lines, and hyper-rectangles, often have very high ...
SSD
2007
Springer
14 years 2 months ago
2007
Springer
Abstract. Mobile devices are increasingly being equipped with wireless peerto-peer (P2P) networking interfaces, rendering the sharing of data among mobile devices feasible and bene...
CCE
2005
13 years 8 months ago
2005
Process network problems can be formulated as Generalized Disjunctive Programs where a logicbased representation is used to deal with the discrete and continuous decisions. A new ...
ICDE
2005
IEEE
14 years 9 months ago
2005
IEEE
Sensor networks and other distributed information systems (such as the Web) must frequently access data that has a high per-attribute acquisition cost, in terms of energy, latency...