2944 search results - page 547 / 589 » On Well Quasi-orders on Languages |
SIGMOD
2007
ACM
14 years 8 months ago
2007
ACM
Declarative data quality has been an active research topic. The fundamental principle behind a declarative approach to data quality is the use of declarative statements to realize...
SIGMOD
2006
ACM
14 years 8 months ago
2006
ACM
We study the problem of finding efficient equivalent viewbased rewritings of relational queries, focusing on query optimization using materialized views under the assumption that ...
PODS
2008
ACM
14 years 8 months ago
2008
ACM
We revisit the classical chase procedure, studying its properties as well as its applicability to standard database problems. We settle (in the negative) the open problem of decid...
ICSE
2005
IEEE-ACM
14 years 8 months ago
2005
IEEE-ACM
Existing spreadsheet systems allow users to change cells arbitrarily, which is a major source of spreadsheet errors. We propose a system that prevents errors in spreadsheets by re...
ICDE
2010
IEEE
14 years 8 months ago
2010
IEEE
Searching and extracting meaningful information out of highly heterogeneous datasets is a hot topic that received a lot of attention. However, the existing solutions are based on e...