Method of cluster making for a multivariate analysis.
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- MITSUI Toshiyuki
- Aichi Institute of Technology
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- OKUYAMA Syuji
- Criminal Investigation Laboratory Aichi Pref. Police H.Q.
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- HIDA Minemasa
- Criminal Investigation Laboratory Aichi Pref. Police H.Q.
Bibliographic Information
- Other Title
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- 多変量解析法におけるクラスター形成方法の検討
- タヘンリョウ カイセキホウ ニ オケル クラスター ケイセイ ホウホウ ノ ケントウ
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Description
A qualitative analysis involving multivariate analysis does not have a clear standard on which to base the results. Any difference in the qualitative analytical results by individual analysts raises doubt concerning the reliability of the qualitative analysis in which a multivariate analysis is used. The qualitative analysis for identification is evaluated as follows. First, the obtained 5∼15 data from measuring one sample is added to unknown cluster belonging to a sample (unknown sample) to identify the difference, and calculated by a principal component analysis for removing the outlier in unknown samples. Next, the cluster analysis is examined. When the Euclid distance of the unknown sample cluster is smaller than that of the data cluster, the unknown sample cluster is judged as one cluster. Next, the relations between the unknown samples are calculated by soft independent modeling of the class analogies method (SIMCA method) based on the result of the cluster analysis. The unknown samples are calculated by a principal component analysis based on the result of the SIMCA method. Finally, the cluster belonging of the individual unknown sample is specified from the result of the cluster analysis and the principal component analysis. The unknown samples are accurately made into a cluster by such a method.<br>
Journal
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- BUNSEKI KAGAKU
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BUNSEKI KAGAKU 52 (4), 239-244, 2003
The Japan Society for Analytical Chemistry
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Keywords
Details 詳細情報について
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- CRID
- 1390282679028492544
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- NII Article ID
- 110002905210
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- NII Book ID
- AN00222633
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- COI
- 1:CAS:528:DC%2BD3sXjtFKju7g%3D
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- NDL BIB ID
- 6555898
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- ISSN
- 05251931
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- Abstract License Flag
- Disallowed