1238 search results - page 40 / 248 » View-based query containment |
SSDBM
2005
IEEE
15 years 3 months ago
2005
IEEE
Similarity-based querying of time series data can be categorized as pattern existence queries and shape match queries. Pattern existence queries find the time series data with ce...
ADC
2003
Springer
15 years 3 months ago
2003
Springer
Semistructured data, in particular XML, has emerged as one of the primary means for information exchange and content management. The power of XML allows authors to structure a doc...
ICDT
2010
ACM
14 years 11 months ago
2010
ACM
When a query is evaluated under bag semantics, each answer is returned as many times as it has derivations. Bag semantics has long been recognized as important, especially when ag...
109
click to vote
IJCAI
2007
14 years 11 months ago
2007
Conjunctive queries play an important role as an expressive query language for Description Logics (DLs). Although modern DLs usually provide for transitive roles, conjunctive quer...
ADC
2003
Springer
15 years 3 months ago
2003
Springer
Selectivity estimation of queries not only provides useful information to the query processing optimization but also may give users a preview of processing results. In this paper,...