267 search results - page 10 / 54 » Schema Mapping as Query Discovery |
ICDCIT
2004
Springer
14 years 3 months ago
2004
Springer
Abstract. Many researchers have investigated the problem of storing and querying XML documents using an RDBMS. Two situations are considered in this approach based on whether or no...
ICDT
2010
ACM
14 years 2 months ago
2010
ACM
We examine schema mappings from a type-theoretic perspective and aim to facilitate and formalize the reuse of mappings. Starting with the mapping language of Clio, we present a ty...
VLDB
2007
ACM
14 years 3 months ago
2007
ACM
This paper reports our first set of results on managing uncertainty in data integration. We posit that data-integration systems need to handle uncertainty at three levels, and do...
VLDB
2004
ACM
14 years 10 months ago
2004
ACM
Abstract. In dynamic environments like the Web, data sources may change not only their data but also their schemas, their semantics, and their query capabilities.When a mapping is ...
PODS
2008
ACM
14 years 10 months ago
2008
ACM
In the study of data exchange one usually assumes an openworld semantics, making it possible to extend instances of target schemas. An alternative closed-world semantics only move...