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CIKM
2005
Springer
15 years 11 months ago
Towards estimating the number of distinct value combinations for a set of attributes
Accurately and efficiently estimating the number of distinct values for some attribute(s) or sets of attributes in a data set is of critical importance to many database operation...
Xiaohui Yu, Calisto Zuzarte, Kenneth C. Sevcik
CIKM
2004
Springer
15 years 11 months ago
Hierarchical document categorization with support vector machines
Automatically categorizing documents into pre-defined topic hierarchies or taxonomies is a crucial step in knowledge and content management. Standard machine learning techniques ...
Lijuan Cai, Thomas Hofmann
VLDB
2004
ACM
118views Database» more  VLDB 2004»
15 years 11 months ago
On the performance of bitmap indices for high cardinality attributes
It is well established that bitmap indices are efficient for read-only attributes with low attribute cardinalities. For an attribute with a high cardinality, the size of the bitma...
Kesheng Wu, Ekow J. Otoo, Arie Shoshani
WISEC
2010
ACM
15 years 11 months ago
Privacy-preserving computation of benchmarks on item-level data using RFID
Currently, companies are about to optimize their internal processes by monitoring items they handle with Radio Frequency Identification (RFID). However, there is a risk that sens...
Florian Kerschbaum, Nina Oertel, Leonardo Weiss Fe...
INFOCOM
2003
IEEE
15 years 11 months ago
Sensor-Centric Quality of Routing in Sensor Networks
Abstract— Standard embeded sensor nework models emphasize energy efficiency and distributed decision-making by considering untethered and unattended sensors. To this we add two ...
Rajgopal Kannan, Sudipta Sarangi, S. Sitharama Iye...