2228 search results - page 33 / 446 » A System for Semantic Query Optimization |
AP2PC
2004
Springer
14 years 2 months ago
2004
Springer
In a peer-to-peer (P2P) system, nodes typically connect to a small set of random nodes (their neighbors), and queries are propagated along these connections. Such query flooding t...
VLDB
1987
ACM
14 years 18 days ago
1987
ACM
is at least ae powerful as SQL. Two well known relational query languages that have a sound theoretical foundation are relational algebra and relational calculus. As SQL is more cl...
EDBT
2008
ACM
14 years 9 months ago
2008
ACM
Scientific data are available through an increasing number of heterogeneous, independently evolving, sources. Although the sources themselves are independently evolving, the data ...
TREC
2007
13 years 10 months ago
2007
A Question Answering (QA) system aims to return exact answers to natural language questions. While today information retrieval techniques are quite successful at locating within l...
ICITA
2005
IEEE
14 years 2 months ago
2005
IEEE
Within the emergent Semantic Web framework, the use of traditional web search engines based on keywords provided by the users is not adequate anymore. Instead, new methods based o...