709 search results - page 20 / 142 » Efficient Evaluation of All-Nearest-Neighbor Queries |
EDBT
2009
ACM
13 years 11 months ago
2009
ACM
In a database system, disclosure of confidential private data may occur if users can put together the answers of past queries. Traditional access control mechanisms cannot guard a...
EDBT
2010
ACM
13 years 10 months ago
2010
ACM
A key advantage of scientific workflow systems over traditional scripting approaches is their ability to automatically record data and process dependencies introduced during workf...
SIGMOD
2008
ACM
13 years 7 months ago
2008
ACM
We consider the problem of evaluating multiple overlapping queries defined on data streams, where each query is a conjunction of multiple filters and each filter may be shared acr...
SAC
2009
ACM
14 years 2 months ago
2009
ACM
Today user-centered information acquisition over collections of complex XML documents is increasingly in demand. To this end, preferences have become an important paradigm enablin...
BTW
2007
Springer
13 years 11 months ago
2007
Springer
: The availability of versioned text collections such as the Internet Archive opens up opportunities for time-aware exploration of their contents. In this paper, we propose time-tr...