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» Querying Multidimensional Databases

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SDM
2009
SIAM

235views Data Mining» more SDM 2009»

Topic Cube: Topic Modeling for OLAP on Multidimensional Text Databases.

14 years 7 months ago

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As the amount of textual information grows explosively in various kinds of business systems, it becomes more and more desirable to analyze both structured data records and unstruc...

ChengXiang Zhai, Duo Zhang, Jiawei Han

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DMDW
2001

194views Management» more DMDW 2001»

Logical Multidimensional Database Design for Ragged and Unbalanced Aggregation

13 years 11 months ago

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Research on logical design of OLAP cubes has tended to assume that the rollup hierarchy in a cube dimension takes the form of a balanced tree. However, experience from industry in...

Tapio Niemi, Jyrki Nummenmaa, Peter Thanisch

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CIKM
2001
Springer

94views Information Technology» more CIKM 2001»

Irregularity in Multi-Dimensional Space-Filling Curves with Applications in Multimedia Databases

14 years 2 months ago