Cluster Dinamik pada Basis Data berbasis Obyek

Posted on May 3rd, 2007 by amutiara

Sampai saat secara teoritis telah dikembangkan tiga teknik ‘clustering’ dinamik untuk Basis Data berbasis obyek (Object-Oriented Databases (OODb)), yaitu

Dynamic, Statistical & Tunable Clustering (DSTC)
StatClust,
Detection & Reclustering of Objects (DRO)

Dua yang pertama, mengeskpoitasi i) statistik pengunaan secara komprehensif dan ii) graf referensi antar-obyek. Keduanya tergolong cukup terinci. Namun, keduanya juga rumit (kompleks) [...]

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Filed under: Clustering, Computer Systems and Engineering

Combinatorial Information Theory: I. Philosophical Basis of Cross-Entropy and Entropy

Posted on April 23rd, 2007 by amutiara

Robert K. Niven
Abstract: This study critically analyses the information-theoretic, axiomatic and combinatorial philosophical bases of the entropy and cross-entropy concepts. The combinatorial basis is shown to be the most fundamental (most primitive) of these three bases, since it gives (i) a derivation for the Kullback-Leibler cross-entropy and Shannon entropy functions, as simplified forms [...]

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Filed under: Computer Systems and Engineering

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