173 search results - page 20 / 35 » Consistent Query Answering in Data Warehouses |
ICDT
2009
ACM
14 years 10 months ago
2009
ACM
Graph-theoretic aggregation problems have been considered both in OLAP (grid graph) and XML (tree). This paper gives new results for MIN aggregation in a tree, where we want the M...
WISE
2002
Springer
14 years 2 months ago
2002
Springer
The common paradigm of searching and retrieving information on the Web is based on keyword-based search using one or more search engines, and then browsing through the large numbe...
EDBT
2008
ACM
14 years 9 months ago
2008
ACM
Data exchange is the problem of transforming data structured under a schema (called source) into data structured under a different schema (called target). The emphasis of data exc...
DEBU
2010
13 years 9 months ago
2010
Consider a universe of tokens, each of which is associated with a weight, and a database consisting of strings that can be represented as subsets of these tokens. Given a query st...
SIGMOD
1997
ACM
14 years 1 months ago
1997
ACM
Infomaster is an information integration system that provides integrated access tomultiple distributed heterogeneous information sources on the Internet, thus giving the illusion ...