Hybrid PCA-ILGC clustering approach for high dimensional data

The availability of high dimensional dataset that incredible growth, imposes insufficient conventional approaches to extract hidden useful information. As a result, today researchers are challenged to develop new techniques to deal with massive high dimensional data that has not only in term of numb...

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Vydáno v:2012 IEEE International Conference on Systems, Man, and Cybernetics (SMC) s. 420 - 424
Hlavní autoři: Musdholifah, A., Hashim, S. Z. M., Ngah, R.
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 01.10.2012
Témata:
Accuracy
Algorithm design and analysis
Clustering
Clustering algorithms
Data mining
Data visualization
dimensionality reduction
Heart
iterative local Gaussian clustering algorithm
Principal component analysis
ISBN:9781467317139, 1467317136
ISSN:1062-922X
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Abstract The availability of high dimensional dataset that incredible growth, imposes insufficient conventional approaches to extract hidden useful information. As a result, today researchers are challenged to develop new techniques to deal with massive high dimensional data that has not only in term of number of data but also in the number of attributes. In order to improve effectiveness and accuracy of mining task on high dimensional data, an efficient dimensionality reduction method should be executed in data preprocessing stage before clustering technique is applied. Many clustering algorithms has been proposed and used to discover useful information from a dataset. Iterative Local Gaussian Clustering (ILGC) is a simple density based clustering technique that has successfully discovered number of clusters represented in the dataset. In this paper we proposed to use the Principal Component Analysis (PCA) method to preprocess the data prior to ILGC clustering in order to simplify the analysis and visualization of multi dimensional data set. The proposed approach is validated with benchmark classification datasets. In addition, the performance of proposed hybrid PCA-ILGC clustering approach is compared to original ILGC, basic k-means and hybridized k-means. The experimental results indicate that the proposed approach is capable to obtain clusters with higher accuracy, and time taken to process the data was decreased.
AbstractList The availability of high dimensional dataset that incredible growth, imposes insufficient conventional approaches to extract hidden useful information. As a result, today researchers are challenged to develop new techniques to deal with massive high dimensional data that has not only in term of number of data but also in the number of attributes. In order to improve effectiveness and accuracy of mining task on high dimensional data, an efficient dimensionality reduction method should be executed in data preprocessing stage before clustering technique is applied. Many clustering algorithms has been proposed and used to discover useful information from a dataset. Iterative Local Gaussian Clustering (ILGC) is a simple density based clustering technique that has successfully discovered number of clusters represented in the dataset. In this paper we proposed to use the Principal Component Analysis (PCA) method to preprocess the data prior to ILGC clustering in order to simplify the analysis and visualization of multi dimensional data set. The proposed approach is validated with benchmark classification datasets. In addition, the performance of proposed hybrid PCA-ILGC clustering approach is compared to original ILGC, basic k-means and hybridized k-means. The experimental results indicate that the proposed approach is capable to obtain clusters with higher accuracy, and time taken to process the data was decreased.
Author Ngah, R.
Musdholifah, A.
Hashim, S. Z. M.
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  givenname: R.
  surname: Ngah
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  email: razalin@fke.utm.my
  organization: Wireless Commun. Centre, Univ. Teknol. Malaysia (UTM), Skudai, Malaysia
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SubjectTerms Accuracy
Algorithm design and analysis
Clustering
Clustering algorithms
Data mining
Data visualization
dimensionality reduction
Heart
iterative local Gaussian clustering algorithm
Principal component analysis
Title Hybrid PCA-ILGC clustering approach for high dimensional data
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