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XML has become a widely used and well structured data format for digital document handling and message transmission. To find useful knowledge in XML data, data warehouse and OLAP applications aimed at providing supports for decision making should be developed. Apache Hadoop is an open source cloud computing framework that provides a distributed file system(More)
During the last decade, we have witnessed the prosperity of the Internet-based social platforms and mobile social applications such as Facebook, Twitter, etc. Meanwhile, due to the popularity of mobile terminals such as smart phones and variety of PADs, it is feasible to obtain relatively accurate tempo-spatial data from mobile terminal holders when they(More)
In web environments, data might be integrated form remote, distributed, autonomous and heterogeneous data sources into a central data collection. The heterogeneity of data sources has two aspects, model heterogeneity and schema heterogeneity. This paper investigates an architecture of data integration, presents data integration processes, and discusses data(More)
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