Download Advances in Knowledge Discovery and Data Mining: 13th by Guang-Zhong Yang (auth.), Thanaruk Theeramunkong, Boonserm PDF

By Guang-Zhong Yang (auth.), Thanaruk Theeramunkong, Boonserm Kijsirikul, Nick Cercone, Tu-Bao Ho (eds.)

This publication constitutes the refereed complaints of the thirteenth Pacific-Asia convention on wisdom Discovery and information Mining, PAKDD 2009, held in Bangkok, Thailand, in April 2009.

The 39 revised complete papers and seventy three revised brief papers offered including three keynote talks have been conscientiously reviewed and chosen from 338 submissions. The papers current new principles, unique examine effects, and sensible improvement studies from all KDD-related components together with facts mining, information warehousing, computing device studying, databases, records, wisdom acquisition, automated medical discovery, facts visualization, causal induction, and knowledge-based systems.

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Extra resources for Advances in Knowledge Discovery and Data Mining: 13th Pacific-Asia Conference, PAKDD 2009 Bangkok, Thailand, April 27-30, 2009 Proceedings

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An encryption algorithm is commutative if the order of encryption does not matter. Thus, for any two encryption keys E1 and E2, and any message m, E1(E2(m)) = E2(E1(m)). The same property applies to decryption as well – thus to decrypt a message encrypted by two keys, it is sufficient to decrypt it one key at a time. The basic idea is for each source to encrypt its data set with its keys and pass the encrypted data set to the next source. This source again encrypts the received data using its encryption keys and passes the encrypted data to the next source until all sources have encrypted the data.

Recent work showed that the simple technique of anonymizing graphs by replacing the identifying information of the nodes with random ids does not guarantee privacy since the identification of the nodes can be seriously jeopardized by applying subgraph queries. In this paper, we investigate how well an edge based graph randomization approach can protect sensitive links. We show via theoretical studies and empirical evaluations that various similarity measures can be exploited by attackers to significantly improve their confidence and accuracy of predicted sensitive links between nodes with high similarity values.

Xia, and F. w ∗ a 2 f (x)dx. 2. A = ai . Then R should be in the ith branch with probability pi . For the leaf node of DTU, each class Ci has a probability P L(Ci ), which is the probability for an instance to be in class Ci if it falls in this leaf node. P L(Ci ) is computed as the fraction of the probabilistic cardinality of instances in class Ci in a leaf node over the total probabilistic cardinality of instances in that node. Assume path L from the root to a leaf node contains t tests, and the data are classified into one class ci in the end, suppose P (Ti ) is the probability that an instance follow the path at the ith test, then the probability for an instance to t be in class ci taking that particular path L is PcLi = P L(ci ) ∗ i=1 P (Ti ).

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