Manoj Jayabalan

Dr. Manoj Jayabalan

orcid

Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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7 April 2018 in Complex & Intelligent Systems
Verified
Journal Article
Open access
PDF file
NBNoorhannah Boodhun
Noorhannah Boodhun
Manoj JayabalanManoj Jayabalan
Manoj Jayabalan
Risk assessment is a crucial element in the life insurance business to classify the applicants. Companies perform underwriting process to make decisions on applications and to price policies accordingly. With the increase in the amount of data and advances in data analytics, the underwriting process can be automated for faster processing of applications. This research aims at providing solutions to enhance risk assessment among life insurance firms using predictive analytics. The real world dataset with over hundred attributes (anonymized) has been used to conduct the analysis. The dimensionality reduction has been performed to choose prominent attributes that can improve the prediction power of the models. The data dimension has been reduced by feature selection techniques and feature extraction namely, Correlation-Based Feature Selection (CFS) and Principal Components Analysis (PCA). Machine learning algorithms, namely Multiple Linear Regression, Artificial Neural Network, REPTree and Random Tree classifiers were implemented on the dataset to predict the risk level of applicants. Findings revealed that REPTree algorithm showed the highest performance with the lowest mean absolute error (MAE) value of 1.5285 and lowest root-mean-squared error (RMSE) value of 2.027 for the CFS method, whereas Multiple Linear Regression showed the best performance for the PCA with the lowest MAE and RMSE values of 1.6396 and 2.0659, respectively, as compared to the other models.

1 January 2020 in International Journal of Advanced Computer Science and Applications
Verified
Journal Article
Open access
PDF file
AMAbdulla Muaz
Abdulla Muaz
Manoj JayabalanManoj Jayabalan
Manoj Jayabalan
VTVinesh Thiruchelvam
Vinesh Thiruchelvam
Credit Card fraud is a tough reality that continues to constrain the financial sector and its detrimental effects are felt across the entire financial market. Criminals are continuously on the lookout for ingenious methods for such fraudulent activities and are a real threat to security. Therefore, there is a need for early detection of fraudulent activity to preserve customer trust and safeguard their business. A major challenge faced in designing fraud detection systems is dealing with the class imbalance issue in the data since genuine transactions outnumber the fraudulent transactions typically account less than 1% of the total transactions. This is an important area of study as the positive case (fraudulent case) is hard to distinguish and becomes even harder with the inflow of data where the representation of such cases even decreases further. This study trained four predictive models, Artificial Neural Network (ANN), Gradient Boosting Machine (GBM) and Random Forest (RF) on different sampling methods. Random Under Sampling (RUS), Synthetic Minority Over-sampling Technique (SMOTE), Density-Based Synthetic Minority Over-Sampling Technique (DBSMOTE) and SMOTE combined with Edited Nearest Neighbour (SMOTEENN) was used for all models. The findings of this study indicate promising results with SMOTE based sampling techniques. The best recall score obtained was with SMOTE sampling strategy by DRF classifier at 0.81. The precision score for this classifier was observed to be 0.86. Stacked Ensemble was trained for all the sampled datasets and found to have the best average performance at 0.78. The Stacked Ensemble model has shown promise in the detection of fraudulent transactions across most of the sampling strategies.

8 October 2016 in Journal of Medical Systems
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Journal Article
Closed access
PDF file
Manoj JayabalanManoj Jayabalan
Manoj Jayabalan
TOThomas O’daniel
Thomas O’daniel

1 January 2020 in International Journal of Machine Learning and Computing
Verified
Journal Article
Open access
AAAlvin Andrean
Alvin Andrean
Manoj JayabalanManoj Jayabalan
Manoj Jayabalan
VTVinesh Ts Dr Vinesh Thiruchelvam
Vinesh Ts Dr Vinesh Thiruchelvam

1 September 2017
Verified
Conference Paper
Closed access
JAJustice Asare-Frempong
Justice Asare-Frempong
Manoj JayabalanManoj Jayabalan
Manoj Jayabalan
Direct marketing enables banks and other financial organizations to focus on those customers who present the likelihood of subscribing to their products, offers, and other packages. Most often than not, identifying these group of customers poses a challenge to financial institutions. In line with the aforementioned, this study considered the typical case of bank direct marketing campaign dataset with two main objectives. First, to predict customer response to bank direct marketing by applying four classifiers namely, Multilayer Perceptron Neural Network (MLPNN), Decision Tree (C4.5), Logistic Regression and Random Forest (RF). Results from the study portray that Random Forest Classifier with an accuracy of 87% is the most prolific classifier in terms of predictive ability. Evaluation of the classifiers was performed using classification accuracy and ROC. The RF classifier produced 86.80% as well as 92.7% respectively to place first among the classifiers. The second objective was to identify the key features of customers who subscribed and are most likely to subsequently subscribe to term deposits. A cluster analysis was performed to achieve this goal. Results from the cluster analysis revealed that, customers on whom more call durations are spent on present a higher likelihood of subscribing to the term deposit. What is more, the results indicated further that customers with a minimum of secondary school education are good prospects to be targeted for the bank term deposit subscriptions.

1 December 2015
Verified
Conference Paper
Closed access
SRSathiapriya Ramiah
Sathiapriya Ramiah
TLTan Yu Liong
Tan Yu Liong
Manoj JayabalanManoj Jayabalan
Manoj Jayabalan
Smartphones have been known as most commonly used electronic devices in daily life today. As hardware embedded in smartphones can perform much more task than traditional phones, the smartphones are no longer just a communication device but also considered as a powerful computing device which able to capture images, record videos, surf the internet and etc. With advancement of technology, it is possible to apply some techniques to perform text detection and translation. Therefore, an application that allows smartphones to capture an image and extract the text from it to translate into English and speech it out is no longer a dream. In this study, an Android application is developed by integrating Tesseract OCR engine, Bing translator and phones' built-in speech out technology. Final deliverable is tested by various type of target end user from a different language background and concluded that the application benefits many users. By using this app, travelers who visit a foreign country able to understand messages portrayed in different language. Visually impaired users are also able to access important message from a printed text through speech out feature.