491 search results - page 4 / 99 » Optimizing complex queries with multiple relation instances |
ICTAI
2008
IEEE
14 years 1 months ago
2008
IEEE
Unlike simple questions, complex questions cannot be answered by simply extracting named entities. These questions require inferencing and synthesizing information from multiple d...
ECML
2006
Springer
13 years 11 months ago
2006
Springer
Multiple-instance learning (MIL) is a popular concept among the AI community to support supervised learning applications in situations where only incomplete knowledge is available....
PODS
2008
ACM
14 years 7 months ago
2008
ACM
We introduce a theoretical framework for discovering relationships between two database instances over distinct and unknown schemata. This framework is grounded in the context of ...
GIS
2005
ACM
14 years 8 months ago
2005
ACM
Group nearest neighbor (GNN) queries are a relatively new type of operations in spatial database applications. Different from a traditional kNN query which specifies a single quer...
VLDB
2006
ACM
14 years 7 months ago
2006
ACM
In this paper we study the following problem. Given a database and a set of queries, we want to find a set of views that can compute the answers to the queries, such that the amoun...