168 search results - page 14 / 34 » Efficient Creation of Statistics over Query Expressions |
CNL
2009
13 years 8 months ago
2009
Abstract. As it is well-known, querying and managing structured data in natural language is a challenging task due to its ambiguity (syntactic and semantic) and its expressiveness....
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
Abstract-- We investigate techniques to automatically decompose any XQuery query into subqueries, that can be executed near their data sources; i.e., function-shipping. In this sce...
IR
2000
13 years 7 months ago
2000
Domain-specific internet portals are growing in popularity because they gather content from the Web and organize it for easy access, retrieval and search. For example, www.campsear...
PODS
2006
ACM
14 years 7 months ago
2006
ACM
Finding icebergs ? items whose frequency of occurrence is above a certain threshold ? is an important problem with a wide range of applications. Most of the existing work focuses ...
CIDR
2003
13 years 9 months ago
2003
It has frequently been observed that most of the world’s data lies outside database systems. The reason is that database systems focus on structured data, leaving the unstructur...