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VLDB
2004
ACM
111views Database» more  VLDB 2004»
14 years 4 months ago
Technology Challenges in a Data Warehouse
This presentation will discuss several database technology challenges that are faced when building a data warehouse. It will touch on the challenges posed by high capacity drives ...
Ramesh Bhashyam
SIGMOD
2006
ACM
219views Database» more  SIGMOD 2006»
14 years 11 months ago
Modeling skew in data streams
Data stream applications have made use of statistical summaries to reason about the data using nonparametric tools such as histograms, heavy hitters, and join sizes. However, rela...
Flip Korn, S. Muthukrishnan, Yihua Wu
JUCS
2006
225views more  JUCS 2006»
13 years 11 months ago
Restricting the View and Connecting the Dots - Dangers of a Web Search Engine Monopoly
: Everyone realizes how powerful the few big Web search engine companies have become, both in terms of financial resources due to soaring stock quotes and in terms of the still hid...
Narayanan Kulathuramaiyer, Wolf-Tilo Balke
DAGSTUHL
2004
14 years 9 days ago
Knowledge-Based Sampling for Subgroup Discovery
Subgroup discovery aims at finding interesting subsets of a classified example set that deviates from the overall distribution. The search is guided by a so-called utility function...
Martin Scholz
KDD
2009
ACM
142views Data Mining» more  KDD 2009»
14 years 11 months ago
Quantification and semi-supervised classification methods for handling changes in class distribution
In realistic settings the prevalence of a class may change after a classifier is induced and this will degrade the performance of the classifier. Further complicating this scenari...
Jack Chongjie Xue, Gary M. Weiss