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Application of the C4.5 classifier to building an expert system for ion chromatography


Mulholland, M and Hibbert, DB and Haddad, PR and Sammut, C, Application of the C4.5 classifier to building an expert system for ion chromatography, Chemometrics and Intelligent Laboratory Systems, 27, (1) pp. 95-104. ISSN 0003-2700 (1995) [Refereed Article]

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DOI: doi:10.1016/0169-7439(94)00063-O


A classifier based on the philosophy of induction is used to create rules for the choice of a detector for ion chromatography (IC). A data base of over 4000 instances was used to obtain suitable classifications, that were initially compiled for use in Haddad and Jackson's recent monograph on IC. The properties of an ion chromatography method that were used for rule building were solute name, separation mechanism, application, number of solutes, ion class, halide type, sulphate presence, nitrate presence, and whether a suppressor or post column detection was used. The classifier, C4.5, chooses the property that maximises the amount of information gained. By examining properties that relate to a given class, C4.5 operates a topódown induction process. A tree with 62 rules was derived from this data base. The evaluation of these rules against two test sets showed that 70% of the proposed methods were an exact match with the published methods and a further 22% gave practical methods as assessed by our expert.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Analytical chemistry
Research Field:Analytical chemistry not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the chemical sciences
UTAS Author:Haddad, PR (Professor Paul Haddad)
ID Code:5425
Year Published:1995
Web of Science® Times Cited:11
Deposited By:Chemistry
Deposited On:1995-08-01
Last Modified:2010-02-08

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