J. Christopher Westland

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Current software cost estimation models, such as the 1981 Constructive Cost Model (COCOMO) for software cost estimation and its 1987 Ada COCOMO update, have been experiencing increasing difficulties in estimating the costs of software developed to new life cycle processes and capabilities. These include non-sequential and rapid-development process models;(More)
Credit card fraud is a serious and growing problem. While predictive models for credit card fraud detection are in active use in practice, reported studies on the use of data mining approaches for credit card fraud detection are relatively few, possibly due to the lack of available data for research. This paper evaluates two advanced data mining approaches,(More)
The search for and correction of errors in software are often time consuming and expensive components of the total cost of software development. The current research investigates to what extent these costs of software error detection and correction contribute to the total cost of software. We initiated the research reported here with the collection of a(More)