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Journal : Indonesian Journal on Computing (Indo-JC)

Implementation of Evolution Strategies for Classifier Model Optimization Mahmud Dwi Sulistiyo; Rita Rismala
Indonesia Journal on Computing (Indo-JC) Vol. 1 No. 2 (2016): September, 2016
Publisher : School of Computing, Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21108/INDOJC.2016.1.2.43


Classification becomes one of the classic problems that are often encountered in the field of artificial intelligence and data mining. The problem in classification is how to build a classifier model through training or learning process. Process in building the classifier model can be seen as an optimization problem. Therefore, optimization algorithms can be used as an alternative way to generate the classifier models. In this study, the process of learning is done by utilizing one of Evolutionary Algorithms (EAs), namely Evolution Strategies (ES). Observation and analysis conducted on several parameters that influence the ES, as well as how far the general classifier model used in this study solve the problem. The experiments and analyze results show that ES is pretty good in optimizing the linear classification model used. For Fisher’s Iris dataset, as the easiest to be classified, the test accuracy is best achieved by 94.4%; KK Selection dataset is 84%; and for SMK Major Election datasets which is the hardest to be classified reach only 49.2%.
Eye State Prediction Based on EEG Signal Data Neural Network and Evolutionary Algorithm Optimization Untari Novia Wisesty; Hifzi Priabdi; Rita Rismala; Mahmud Dwi Sulistiyo
Indonesia Journal on Computing (Indo-JC) Vol. 5 No. 1 (2020): Maret, 2020
Publisher : School of Computing, Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34818/INDOJC.2020.5.1.372


Eye state prediction is one study using EEG signals obtained to predict the state of the human eye several moments before. In its development, many researchers also have built eye states detection schemes, but the system built is only limited to classifying one record of input data obtained from the Emotive EPOC headset channel into the eye state. Therefore, this paper proposed eye state prediction system where the system can predict the state of the human eye some time previously based on the EEG signal series used. The proposed system consists of two parts, namely the prediction of the EEG signal value and eye state detection based on the value of the signal that has been obtained using Differential Evolution and Neural Network optimized by Evolution Strategies, respectively. The highest accuracy obtained from the eye state prediction system that has been built is 73.2%. These results are obtained by the best combination of parameters from the three methods used.