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» On Coalgebras over Algebras
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VLDB
2008
ACM
196views Database» more  VLDB 2008»
14 years 8 months ago
Modelling retrieval models in a probabilistic relational algebra with a new operator: the relational Bayes
This paper presents a probabilistic relational modelling (implementation) of the major probabilistic retrieval models. Such a high-level implementation is useful since it supports ...
Thomas Rölleke, Hengzhi Wu, Jun Wang, Hany Azzam
POLICY
2007
Springer
14 years 1 months ago
Data-Purpose Algebra: Modeling Data Usage Policies
Data is often encumbered by restrictions on the ways in which it may be used. These restrictions on usage may be determined by statute, by contract, by custom, or by common decenc...
Chris Hanson, Tim Berners-Lee, Lalana Kagal, Geral...
CONCUR
1994
Springer
13 years 11 months ago
Weak Sequential Composition in Process Algebras
Abstract. In this paper we study a special operator for sequential composition, which is de ned relative to a dependency relation over the actions of a given system. The idea is th...
Arend Rensink, Heike Wehrheim
TSP
2008
112views more  TSP 2008»
13 years 7 months ago
An Algebraic Coding Scheme for Wireless Relay Networks With Multiple-Antenna Nodes
Abstract--We consider the problem of coding over a half-duplex wireless relay network where both the transmitter and the receiver have respectively several transmit and receive ant...
Frédérique E. Oggier, Babak Hassibi
AIED
2007
Springer
14 years 1 months ago
Benefits of Handwritten Input for Students Learning Algebra Equation Solving
Building on past results establishing a benefit for using handwriting when entering mathematics on the computer, we hypothesize that handwriting as an input modality may be able to...
Lisa Anthony, Jie Yang, Kenneth R. Koedinger