Efficiency considerations - PowerPoint PPT Presentation

Data Warehousing and OLAP

Data Warehousing and OLAP. ENGI3675 Database Systems. Introduction. Cow book chapter 25 Data mining book chapter 4 Useful to analyze historical data Discover trends Make more informed decisions Decision support Requires comprehensive databases Data from several separate sources

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Compact Query Term Selection Using Topically Related Text

Compact Query Term Selection Using Topically Related Text. Date : 2013/10/09 Source : SIGIR’13 Authors : K. Tamsin Maxwell, W. Bruce Croft Advisor : Dr.Jia -ling, Koh Speaker : Shun-Chen, Cheng. Outline. Introduction The PhRank Algorithm Graph Construction Edge Weight Random Walk

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316 views • 22 slides

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