Data in the world, and more specifically on the Internet is growing to massive sizes. In order to make this information more useful, it must first be more accessible. The INEX Initiative competition is aimed with the goal of identifying and comparing methodologies for categorizing information into clusters. The competition will be run on 60 gigabytes of data from Wikipedia, with the ultimate go...

Analysing customers in groups is one of the most fundamental issues in Marketing. It helps companies sufficiently learn from their customers, and rationally design their marketing strategies. Given a customer database with n records (customers) and m attributes (one’s characteristics) stored, different approaches can be applied to automatically segment (cluster) records in divisions. In this pa...

This study aimed to assess banking service quality in Vietnam and to make a comparison of customers' and bank staff's perceptions of this based on six dimensions of the BSQ (bank service quality) model suggested by Bahia & Nantel (2000). All the data were collected through questionnaires which were delivered to two groups: customers and bank staff in some large banks in Vietnam. Descriptive sta...

Because of a speedy pace of technology innovation, the competition of the information and communication industries in Taiwan has grown vigorously. At the same time, the demand of consumers has become more sophisticated than ever. In order to outperform competitors and fulfill consumers’ sophisticated requests, retailers of 3C (Computer, Communication, and Consumer Electronics) products, on one ...

When some customers are more profitable to serve than others, one might expect sellers to compete more vigorously for the more profitable customers. One way sellers might do this is to sell goods that are purchased primarily by the most profitable customers using a lower mark-up than on other goods. This allows the firms to give discounts to more profitable customers without offering them to le...

In a recent paper van Houwelingen and le Cessie (1990) consider the shrinkage eeect as well as a shrinkage method. We investigate the shrinkage eeect in more detail and show that the proposed shrinkage method is tailored to remove the shrinkage eeect. This appears to be not a good advice to improve predictors. However, it can be useful in predicting the future behaviour of risk groups deened by...

The following article deals with customer personality in the CRM systems. Its innovatory approach consists in the method of segmentation performed according to one of psychological factors personality. The analysis is based on the assumption that the class of customers can be divided into separate types. This is possible due to the preservation of a large internal homogeneity within every type ...