285 search results - page 51 / 57 » Optimization of Real Conjunctive Queries |
ICDCS
2009
IEEE
14 years 4 months ago
2009
IEEE
Content sharing through vehicle-to-vehicle communication can help people find their interested content on the road. In VANETs, due to limited contact duration and unreliable wire...
ICDE
2000
IEEE
14 years 8 months ago
2000
IEEE
Nearest neighbor queries are important in many settings, including spatial databases (Find the k closest cities) and multimedia databases (Find the k most similar images). Previou...
WWW
2008
ACM
14 years 8 months ago
2008
ACM
Current search mechanisms of DHT-based P2P systems can well handle a single keyword search problem. Other than single keyword search, multi-keyword search is quite popular and use...
ICDE
2008
IEEE
14 years 8 months ago
2008
IEEE
Aggregation is among the core functionalities of OLAP systems. Frequently, such queries are issued in decision support systems to identify interesting groups of data. When more tha...
SIGMOD
2002
ACM
14 years 7 months ago
2002
ACM
Dwarf is a highly compressed structure for computing, storing, and querying data cubes. Dwarf identifies prefix and suffix structural redundancies and factors them out by coalesci...