641 search results - page 74 / 129 » Studying Query Expansion Effectiveness |
ICDE
2006
IEEE
14 years 10 months ago
2006
IEEE
The detection of duplicate tuples, corresponding to the same real-world entity, is an important task in data integration and cleaning. While many techniques exist to identify such...
ICDE
2004
IEEE
14 years 10 months ago
2004
IEEE
The effectiveness of many existing high-dimensional indexing structures is limited to specific types of queries and workloads. For example, while the Pyramid technique and the iMi...
SIGMOD
2003
ACM
14 years 9 months ago
2003
ACM
Many applications employ sensors for monitoring entities such as temperature and wind speed. A centralized database tracks these entities to enable query processing. Due to contin...
VLDB
2005
ACM
14 years 2 months ago
2005
ACM
The Web has been rapidly “deepened” by myriad searchable databases online, where data are hidden behind query forms. Helping users query alternative “deep Web” sources in ...
DASFAA
2010
IEEE
14 years 29 days ago
2010
IEEE
This paper studies a new query on uncertain data, called k-selection query. Given an uncertain dataset of N objects, where each object is associated with a preference score and a p...