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» Extracting Schema from Semistructured Data
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BNCOD
2007
96views Database» more  BNCOD 2007»
13 years 10 months ago
Extracting Temporal Information from Short Messages
Abstract. Information Extraction, the process of eliciting data from natural language documents, usually relies on the ability to parse the document and then to detect the meaning ...
Richard Cooper, Sinclair Manson
SIGMOD
2011
ACM
169views Database» more  SIGMOD 2011»
12 years 11 months ago
Leveraging query logs for schema mapping generation in U-MAP
In this paper, we introduce U-MAP, a new system for schema mapping generation. U-MAP builds upon and extends existing schema mapping techniques. However, it mitigates some key pro...
Hazem Elmeleegy, Ahmed K. Elmagarmid, Jaewoo Lee
CORR
2007
Springer
134views Education» more  CORR 2007»
13 years 9 months ago
Web data modeling for integration in data warehouses
In a data warehousing process, the data preparation phase is crucial. Mastering this phase allows substantial gains in terms of time and performance when performing a multidimensio...
Sami Miniaoui, Jérôme Darmont, Omar B...
VLDB
2007
ACM
125views Database» more  VLDB 2007»
14 years 3 months ago
Data Integration with Uncertainty
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...
Xin Luna Dong, Alon Y. Halevy, Cong Yu
CSMR
2005
IEEE
14 years 2 months ago
Database Wrappers Development: Towards Automatic Generation
Wrapping databases allows them to be reused in formerly unplanned contexts, such as web-based applications or federated systems. Indeed, a wrapper can provide external clients of ...
Philippe Thiran, Jean-Luc Hainaut, Geert-Jan Hoube...