223 search results - page 2 / 45 » Expressive and Efficient Peer-to-Peer Queries |
ISMIS
2005
Springer
13 years 11 months ago
2005
Springer
Abstract. One of the virtues of XML is that it allows complex structures to be easily expressed. This allows XML to be used as an intermediate, neutral, and standard form for repre...
ESWS
2009
Springer
13 years 3 months ago
2009
Springer
Many applications operate on time-sensitive data. Some of these data are only valid for certain intervals (e.g., job-assignments, versions of software code), others describe tempor...
BNCOD
2009
13 years 6 months ago
2009
We study the expressiveness of a positive fragment of path queries, denoted Path+ , on node-labeled trees documents. The expressiveness of Path+ is studied from two angles. First, ...
PODS
2006
ACM
14 years 5 months ago
2006
ACM
Privacy-preserving query-answering systems answer queries while provably guaranteeing that sensitive information is kept secret. One very attractive notion of privacy is perfect p...
PODS
2008
ACM
14 years 5 months ago
2008
ACM
We study complexity and approximation of queries in an expressive query language for probabilistic databases. The language studied supports the compositional use of confidence com...