JODS
2006
13 years 5 months ago
2006
Abstract. Many problems in Information and Data Management require a semantic account of a database schema. At its best, such an account consists of formulas expressing the relatio...
SWAP
2007
13 years 6 months ago
2007
We address the problem of reasoning with instances of heterogeneously formalized ontologies. Given a set of semantic mappings, reconciling conceptual and instance level heterogenei...
SAC
2004
ACM
13 years 10 months ago
2004
ACM
Electronic marketplaces are virtual communities where buyers may meet proposals of several suppliers and make the best choice. The exponential increment of the e-commerce amplifie...
SEMWEB
2005
Springer
13 years 10 months ago
2005
Springer
Abstract. Much data is published on the Web in XML format satisfying schemas, and to make the Semantic Web a reality, such data needs to be interpreted with respect to ontologies. ...
ESWS
2005
Springer
13 years 10 months ago
2005
Springer
The paper addresses the problem of reasoning with multiple ontologies interrelated with semantic mappings. This problem is becoming more and more relevant due to the necessity of b...
VLDB
2007
ACM
13 years 11 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...
ICDE
2007
IEEE
13 years 11 months ago
2007
IEEE
Querying semantically related data sources depends on the ability to map between their schemas. Unfortunately, in most cases matching between schema is still largely performed man...
EDBT
2008
ACM
14 years 5 months ago
2008
ACM
Peer Data Management Systems (PDMSs) have been introduced as a solution to the problem of large-scale sharing of semantically rich data. A PDMS consists of semantic peers connecte...
SIGMOD
2004
ACM
14 years 5 months ago
2004
ACM
In Toronto's Kanata project, we are investigating the integration and exchange of data and metadata in dynamic, autonomous environments. Our focus is on the development and m...
WWW
2005
ACM
14 years 5 months ago
2005
ACM
Constructing and maintaining semantic mappings are necessary but troublesome in data sharing systems. While most current work focuses on seeking automated techniques to solve this...