1091 search results - page 139 / 219 » Approximation in Databases |
127
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WCE
2007
15 years 7 months ago
2007
—Although the current E-Learning systems have many merits, many of them only treat advanced information technology as simple communication tools, and release some learning conten...
147
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DKE
2008
15 years 6 months ago
2008
Space constrained optimization problems arise in a variety of applications, ranging from databases to ubiquitous computing. Typically, these problems involve selecting a set of it...
153
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NN
2006
Springer
15 years 6 months ago
2006
Springer
We introduce the Hierarchically Growing Hyperbolic Self-Organizing Map (H2 SOM) featuring two extensions of the HSOM (hyperbolic SOM): (i) a hierarchically growing variant that al...
156
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TCS
2008
15 years 6 months ago
2008
Computing frequent itemsets is one of the most prominent problems in data mining. We study the following related problem, called FREQSAT, in depth: given some itemset-interval pai...
134
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GIS
2010
ACM
15 years 4 months ago
2010
ACM
The growing popularity of online Earth visualization tools and geo-realistic games and the availability of high resolution terrain data have motivated a new class of queries to th...