617 search results - page 51 / 124 » Semantic queries in databases: problems and challenges |
ICDE
2006
IEEE
14 years 10 months ago
2006
IEEE
Data integration from multiple autonomous data sources has emerged as an important practical problem. The key requirement for such data integration is that owners of such data nee...
ICDE
2012
IEEE
11 years 11 months ago
2012
IEEE
— In this paper, we focus on efficient keyword query processing for XML data based on SLCA and ELCA semantics. We propose for each keyword a novel form of inverted list, which i...
SIGMOD
2010
ACM
14 years 1 months ago
2010
ACM
We propose a novel privacy-preserving distributed infrastructure in which data resides only with the publishers owning it. The infrastructure disseminates user queries to publishe...
ICDE
2011
IEEE
13 years 19 days ago
2011
IEEE
— Array database systems are architected for scientific and engineering applications. In these applications, the value of a cell is often imprecise and uncertain. There are at le...
VLDB
1987
ACM
14 years 12 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...