We propose a class of generalised percentile ratios as an alternative to the P<SUB align="right">90</SUB> / P<SUB align="right">10</SUB> ratio for measuring labour earnings inequality. We show that they are more robust to sampling the variation and rounding error prevalent in interview-based surveys, as demonstrated through a Monte Carlo...</sub></sub>

For effective Customer Relationship Management (CRM), it is important to gather information on customer value. Segmentation is the method of knowing the customers and partitioning a population of customers into smaller groups. This paper develops a novel country segmentation methodology based on...

In this paper, we solve the customer credit card churn prediction via data mining. We developed an ensemble system incorporating majority voting and involving Multilayer Perceptron (MLP), Logistic Regression (LR), decision trees (J48), Random Forest (RF), Radial Basis Function (RBF) network and...

Cross-border shopping has been of interest in the past decade. Given the close proximity of Singapore and Johor Bahru (JB) (located at the southern tip of Malaysia), outshopping has become a notable feature of cross-border visits. We compared the travel frequencies of 203 Singapore residents who...

Inventory control is one way to increase profit margins without altering resources. A spreadsheet model was developed for the inventory control of packaging material in a real case study from a fruit juice manufacturing firm. The contribution of this paper is the construction of a spreadsheet...

Recently, it has been proposed that team-based performance appraisal may promote knowledge sharing in the field of knowledge management. The proposal, however, is theoretically and practically doubtful. As a response, this paper explores how team-based performance appraisal impacts knowledge...

Rapid urbanisation results in the emergence of in-city villages in many developing countries. The lack of public transit access has been a long-standing problem for the residents in such villages. Here we develop a new mathematical model for adding stops onto the existing transit routes passing...

Over the years, many researchers have proposed theoretical models of problem-solving. These models work a problem in a sequential and rational manner. Through our professional experience and an action research study, we discovered fundamental differences between what these models describe and...

This paper presents an algorithm for mining fuzzy temporal patterns from a given process instance. The fuzzy representation of time intervals embedded between the activities is used for this purpose. Initially, the activities are portrayed with their temporal relationships through temporal...

In the past few years, various quality standards and quality systems have been attempted for the improvement of the products and services in our lives. One such quality tool which has the ability to generate creative and novel solutions is Quality Function Deployment (QFD). This paper presents a...