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» Web data modeling for integration in data warehouses
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TVCG
2008
112views more  TVCG 2008»
15 years 6 months ago
Vispedia: Interactive Visual Exploration of Wikipedia Data via Search-Based Integration
Abstract-Wikipedia is an example of the collaborative, semi-structured data sets emerging on the Web. These data sets have large, nonuniform schema that require costly data integra...
Bryan Chan, Leslie Wu, Justin Talbot, Mike Cammara...
IDEAS
2002
IEEE
125views Database» more  IDEAS 2002»
15 years 11 months ago
Integrating HTML Tables Using Semantic Hierarchies And Meta-Data Sets
As the Internet is a global network, there is a demand on accessing closely related data without browsing through di erent Web documents. A signi cant amount of these data are pre...
Seung Jin Lim, Yiu-Kai Ng, Xiaochun Yang
POLICY
2007
Springer
16 years 10 days ago
Adaptive Web Data Extraction Policies
Web data extraction is concerned, among other things, with routine data accessing and downloading from continuously-updated dynamic Web pages. There is a relevant trade-off between...
Giacomo Fiumara, Massimo Marchi, Alessandro Provet...
MTSR
2007
Springer
16 years 10 days ago
Creating and Querying an Integrated Ontology for Molecular and Phenotypic Cereals Data
In this paper we describe the development of an ontology of molecular and phenotypic cereals data, realized by integrating existing public web databases with the database developed...
Sonia Bergamaschi, Antonio Sala 0002
KDD
2007
ACM
165views Data Mining» more  KDD 2007»
16 years 6 months ago
Efficient and effective explanation of change in hierarchical summaries
Dimension attributes in data warehouses are typically hierarchical (e.g., geographic locations in sales data, URLs in Web traffic logs). OLAP tools are used to summarize the measu...
Deepak Agarwal, Dhiman Barman, Dimitrios Gunopulos...