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PST
2008
13 years 11 months ago
Utility of Knowledge Extracted from Unsanitized Data when Applied to Sanitized Data
Knowledge discovery systems extract knowledge from data that can be used for making prediction about incomplete data items. Utility is a measure of the usefulness of the discovere...
Michal Sramka, Reihaneh Safavi-Naini, Jörg De...
ICC
2007
IEEE
106views Communications» more  ICC 2007»
14 years 4 months ago
Hybrid-ARQ Code Combining for MIMO Using Multidimensional Space-Time Trellis Codes
— A hybrid automatic repeat-request (ARQ) code combining scheme employing different multidimensional spacetime trellis codes (MSTTCs) over a multiple-input, multipleoutput (MIMO)...
Zhihong Ding, Michael Rice
MANSCI
2008
89views more  MANSCI 2008»
13 years 9 months ago
Research Note - When Is Versioning Optimal for Information Goods?
This paper provides insights about when versioning is an optimal strategy for information goods. Our characterization of this class of goods is that variable costs are invariant w...
Hemant K. Bhargava, Vidyanand Choudhary
ITS
2000
Springer
110views Multimedia» more  ITS 2000»
14 years 1 months ago
Limitations of Student Control: Do Students Know When They Need Help?
Intelligent tutoring systems often emphasize learner control: They let the students decide when and how to use the system's intelligent and unintelligent help facilities. This...
Vincent Aleven, Kenneth R. Koedinger
ESA
2000
Springer
73views Algorithms» more  ESA 2000»
14 years 1 months ago
K-D Trees Are Better when Cut on the Longest Side
We show that a popular variant of the well known k-d tree data structure satisfies an important packing lemma. This variant is a binary spatial partitioning tree T defined on a set...
Matthew Dickerson, Christian A. Duncan, Michael T....