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ICDE
2004
IEEE
120views Database» more  ICDE 2004»
16 years 4 months ago
Minimization and Group-By Detection for Nested XQueries
We describe and evaluate a query minimization technique that applies to XQueries, which are nested, perform arbitrary joins, and freely mix bag and set semantics. These features c...
Alin Deutsch, Yannis Papakonstantinou, Yu Xu
ICPR
2004
IEEE
16 years 4 months ago
Fast Object and Pose Recognition Through Minimum Entropy Coding
We present a pattern recognizer to classify a variety of objects and their pose on a table from real world images. Learning of weights in a linear discriminant is based on estimat...
Günter Westphal, Rolf P. Würtz
SIGMOD
2002
ACM
154views Database» more  SIGMOD 2002»
16 years 3 months ago
Clustering Validity Checking Methods: Part II
Clustering results validation is an important topic in the context of pattern recognition. We review approaches and systems in this context. In the first part of this paper we pre...
Maria Halkidi, Yannis Batistakis, Michalis Vazirgi...
ICAPR
2005
Springer
15 years 8 months ago
Symmetric Hash Functions for Fingerprint Minutiae
Abstract. The possibility that a database with biometric data is compromised is one of the main concerns in implementing biometric identification systems. In this paper we present...
Sergey Tulyakov, Faisal Farooq, Venu Govindaraju
CINQ
2004
Springer
138views Database» more  CINQ 2004»
15 years 8 months ago
Relevancy in Constraint-Based Subgroup Discovery
This chapter investigates subgroup discovery as a task of constraint-based mining of local patterns, aimed at describing groups of individuals with unusual distributional character...
Nada Lavrac, Dragan Gamberger