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» A Theory of Spatio-Temporal Database Queries
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MM
2009
ACM
199views Multimedia» more  MM 2009»
14 years 2 months ago
Signature quadratic form distances for content-based similarity
Determining similarity is a fundamental task in querying multimedia databases in a content-based way. For this challenging task, there exist numerous similarity models which measu...
Christian Beecks, Merih Seran Uysal, Thomas Seidl
MIR
2004
ACM
153views Multimedia» more  MIR 2004»
14 years 28 days ago
Clip-based similarity measure for hierarchical video retrieval
This paper proposes a new approach and algorithm for the similarity measure of video clips. The similarity is mainly based on two bipartite graph matching algorithms: maximum matc...
Yuxin Peng, Chong-Wah Ngo
SIGECOM
2004
ACM
93views ECommerce» more  SIGECOM 2004»
14 years 28 days ago
Strategic deliberation and truthful revelation: an impossibility result
In many market settings, agents do not know their preferences a priori. Instead, they may have to solve computationally complex optimization problems, query databases, or perform ...
Kate Larson, Tuomas Sandholm
CIKM
2003
Springer
14 years 22 days ago
Dimensionality reduction using magnitude and shape approximations
High dimensional data sets are encountered in many modern database applications. The usual approach is to construct a summary of the data set through a lossy compression technique...
Ümit Y. Ogras, Hakan Ferhatosmanoglu
JCSS
2007
107views more  JCSS 2007»
13 years 7 months ago
On the minimization of XML Schemas and tree automata for unranked trees
Automata for unranked trees form a foundation for XML schemas, querying and pattern languages. We study the problem of efficiently minimizing such automata. First, we study unrank...
Wim Martens, Joachim Niehren