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DAWAK
1999
Springer
14 years 28 days ago
Mining Interval Time Series
Data mining can be used to extensively automate the data analysis process. Techniques for mining interval time series, however, have not been considered. Such time series are commo...
Roy Villafane, Kien A. Hua, Duc A. Tran, Basab Mau...
SIGMOD
2008
ACM
65views Database» more  SIGMOD 2008»
14 years 8 months ago
Generating targeted queries for database testing
Tools for generating test queries for databases do not explicitly take into account the actual data in the database. As a consequence, such tools cannot guarantee suitable coverag...
Chaitanya Mishra, Nick Koudas, Calisto Zuzarte
CIKM
2011
Springer
12 years 8 months ago
Tractable XML data exchange via relations
We consider data exchange for XML documents: given source and target schemas, a mapping between them, and a document conforming to the source schema, construct a target document a...
Rada Chirkova, Leonid Libkin, Juan L. Reutter
IDEAS
2005
IEEE
80views Database» more  IDEAS 2005»
14 years 2 months ago
Dynamic Histograms for Non-Stationary Updates
In this paper, we address the problem of incrementally maintaining a histogram in response to a non-stationary update process. In relational database systems, this problem can occ...
Elizabeth Lam, Kenneth Salem
MOBIHOC
2006
ACM
14 years 8 months ago
Analysis of random mobility models with PDE's
In this paper we revisit two classes of mobility models which are widely used to represent users' mobility in wireless networks: Random Waypoint (RWP) and Random Direction (R...
Michele Garetto, Emilio Leonardi