XML Data Warehousing
Modeling, Design and Analysis
(Sprache: Englisch)
Data warehousing is an important application of database technology. Even though XML is ubiquitous and there are many XML databases, there are almost no XML data warehouses today. When the information to be represented naturally has multiple dimensions, as...
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Data warehousing is an important application of database technology. Even though XML is ubiquitous and there are many XML databases, there are almost no XML data warehouses today. When the information to be represented naturally has multiple dimensions, as in data warehouses, fundamental tensions appear in the modeling and schema design. This book propose an evolutionary extension of the XML data model into a multi-dimensional model, called the Multi-Colored Trees (MCT) logical data model. MCT permits trees with multi-colored nodes to signify participation in multiple dimensions. Algorithms are developed to transform design specifications given as ER diagrams into MCT schemas.Bitmap join indices are extended to the XML context. This book demonstrates experimentally the benefit for typical queries, including those with low cardinality or high selectivity. The book also consider the data cube, and show that it cannot readily be expressed or evaluated for XML data. Specifically, XML data is not always summarizable because of missing and repeated sub-elements.
Autoren-Porträt von Nuwee Wiwatwattana
Wiwatwattana, NuweeNuwee Wiwatwattana, Ph.D. in Computer Science and Engineering, graduated from the University of Michigan, Ann Arbor in 2007. She works as an IT specialist at the Pollution Control Department(PCD), Ministry of Natural Resources and Environment in Thailand. She is also a web developer for many organizations.
Bibliographische Angaben
- Autor: Nuwee Wiwatwattana
- 2008, 136 Seiten, Maße: 15 x 22 cm, Kartoniert (TB), Englisch
- Verlag: VDM Verlag Dr. Müller e.K.
- ISBN-10: 3836479117
- ISBN-13: 9783836479110
Sprache:
Englisch
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