620 search results - page 34 / 124 » Algorithms for Rewriting Aggregate Queries Using Views |
117
Voted
ESWS
2006
Springer
15 years 7 months ago
2006
Springer
Recently, research projects such as PADLR and SWAP have developed tools like Edutella or Bibster, which are targeted at establishing peer-to-peer knowledge management (P2PKM) syste...
136
Voted
PODS
2008
ACM
16 years 3 months ago
2008
ACM
Data exchange, also known as data translation, has been extensively investigated in recent years. One main direction of research has focused on the semantics and the complexity of...
154
Voted
PODS
2004
ACM
16 years 3 months ago
2004
ACM
Data exchange is the problem of taking data structured under a source schema and creating an instance of a target schema. Given a source instance, there may be many solutions ? ta...
160
Voted
IS
2006
15 years 3 months ago
2006
In-network data aggregation has been recently proposed as an effective means to reduce the number of messages exchanged in wireless sensor networks. Nodes of the network form an a...
208
click to vote
SIGMOD
2009
ACM
16 years 4 months ago
2009
ACM
In this paper, we consider the problem of keyword query cleaning for structured databases from a probabilistic approach. Keyword query cleaning consists of rewriting the user quer...