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DASFAA
2010
IEEE
166views Database» more  DASFAA 2010»
14 years 5 months ago
The Objects Interaction Matrix for Modeling Cardinal Directions in Spatial Databases
Abstract. Besides topological relations and approximate relations, cardinal directions have turned out to be an important class of qualitative spatial relations. In spatial databas...
Tao Chen, Markus Schneider, Ganesh Viswanathan, We...
FOSSACS
2010
Springer
14 years 5 months ago
Completeness for Algebraic Theories of Local State
Every algebraic theory gives rise to a monad, and monads allow a meta-language which is a basic programming language with sideeffects. Equations in the algebraic theory give rise ...
Sam Staton
MUM
2009
ACM
251views Multimedia» more  MUM 2009»
14 years 5 months ago
WiMo: location-based emotion tagging
In this paper we introduce WiMo, a location-based social networking tool that enables users to share and store their emotional feelings about places. WiMo creates a mobile social ...
Ruturaj N. Mody, Katharine S. Willis, Roland Kerst...
EDBT
2009
ACM
127views Database» more  EDBT 2009»
14 years 5 months ago
Approximate substring selectivity estimation
We study the problem of estimating selectivity of approximate substring queries. Its importance in databases is ever increasing as more and more data are input by users and are in...
Hongrae Lee, Raymond T. Ng, Kyuseok Shim
IAT
2009
IEEE
14 years 5 months ago
Social Trust-Aware Recommendation System: A T-Index Approach
Collaborative Filtering based on similarity suffers from a variety of problems such as sparsity and scalability. In this paper, we propose an ontological model of trust between us...
Alireza Zarghami, Soude Fazeli, Nima Dokoohaki, Mi...