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ICALP
2009
Springer
14 years 10 months ago
Towards Optimal Range Medians
We consider the following problem: given an unsorted array of n elements, and a sequence of intervals in the array, compute the median in each of the subarrays defined by the inter...
Beat Gfeller, Peter Sanders
IC
2001
13 years 11 months ago
Adaptive Web Sites by Web Usage Mining
An approach for reorganizing a Web site based on user access patterns is proposed. The Web server's log les and the Web pages on the site are rst preprocessed to obtain the ac...
Yongjian Fu, Mario Creado, Ming-Yi Shih
DAWAK
2006
Springer
14 years 1 months ago
A Greedy Approach to Concurrent Processing of Frequent Itemset Queries
We consider the problem of concurrent execution of multiple frequent itemset queries. If such data mining queries operate on overlapping parts of the database, then their overall I...
Pawel Boinski, Marek Wojciechowski, Maciej Zakrzew...
BPM
2004
Springer
148views Business» more  BPM 2004»
14 years 1 months ago
Interactive Workflow Mining
Many information systems log event data about executed tasks. Workflow mining is concerned with the derivation of a graphical workflow model out of this data. Experience from appl...
Markus Hammori, Joachim Herbst, Niko Kleiner
FOCS
2009
IEEE
14 years 4 months ago
Regularity Lemmas and Combinatorial Algorithms
— We present new combinatorial algorithms for Boolean matrix multiplication (BMM) and preprocessing a graph to answer independent set queries. We give the first asymptotic impro...
Nikhil Bansal, Ryan Williams