<![CDATA[A service provider company often have problem with insolvent customer. As a company that can not verify customer financial, a service provider company is having difficulty on identifying solvent customer. As one of the service provider company in Jakarta which offer internet connectivity and cable TV service, identifying solvent customer is important because, every customer inside coverage area is a potential customer to subscribe their product. In a related research, algorithm C4.5 become one of the favorite algorithm to use in classifying customer insolvency, and was able to produce high accuracy model, and easy to understand. The major problem of algorithm C4.5 is attribute selection. As noted that a service provider company cannot verify customer financial, they have no data about customer financial which is one important attribute in credit scoring. Therefore, customer payment behavior will be extracted as customer potential as one of classification attribute. Feature extraction with k-means was able to improve the accuracy of the algorithm C4.5. As noted by improve on accuracy from 59.02% to 77.31% and AUC from 0.537 to 0.836. The customer potential attribute can also be used as reference in the promotion, retention, and managing insolvent customer.]]>
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