46 citations · 46 across the 5 of their papers we have counts for
5 papers
US Presidential Election 2012 Prediction using Census Corrected Twitter Model
Murphy Choy, Michelle Cheong, Ma Nang Laik +1
US Presidential Election 2012 has been a very tight race between the two key candidates. There were intense battle between the two key candidates. The election reflects the sentime…
A Flexible Mixed Integer Programming framework for Nurse Scheduling
Murphy Choy, Michelle Cheong
In this paper, a nurse-scheduling model is developed using mixed integer programming model. It is deployed to a general care ward to replace and automate the current manual approac…
Intelligent Search Heuristics for Cost Based Scheduling
Murphy Choy, Michelle Cheong
Nurse scheduling is a difficult optimization problem with multiple constraints. There is extensive research in the literature solving the problem using meta-heuristics approaches.…
Modified Entropy Measure for Detection of Association Rules Under Simpson's Paradox Context
Murphy Choy, Cally Claire Ong, Michelle Cheong
The rapid explosion in retail data calls for more effective and efficient discovery of association rules to develop relevant business strategies and rules.Unlike online shopping si…
Interest Rate Manipulation Detection using Time Series Clustering Approach
Murphy Choy, Enoch Chng, Koo Ping Shung
The Interbank Offered Rate is a vital benchmark interest rate in the financial markets of every country to which financial contracts are tied. In the light of the recent LIBOR mani…