Rangkuti, A.H., Harjoko, A., and Putra, A.E.
This research evolves feature extraction algorithms in overcoming difficulties in classifying batik images that encounter changes in scale and rotation. the algorithm is multiscale and multilevel extended center symmetric local binary pattern (M2ECS-LBP). In utilizing this algorithm using several types of windows to obtain optimal feature extraction results, ranging [...]

Continue reading about Improvement of accuracy in batik image classification due to scale and rotation changes using M2ECS-LBP algorithm

Random Forest (RF) is known as one of the best classifiers in many fields. They are parallelizable, fast to train and to predict, robust to outlier, handle unbalanced data, have low bias, and moderate variance. Apart from these advantages, there are still opportunities to increase RF efficiency. The absence of recommendations regarding the number of [...]

Continue reading about Depth Limitation and Splitting Criteria Optimization on Random Forest for Efficient Human Activity Classification

Heriyanto, Hartati and Putra, 2018
The recitation of the Qur’an has its own uniqueness, among others having a special rule in reading and pronunciation, which is called tajwid science. At the time of the Qur’an is recited, there are often mistakes due to the limitations of knowledge of Tajwid. Therefore, the availability of tools to facilitate [...]

Continue reading about Evaluation of Suitability of Voice Reading of Al-Qur’an Verses Based on Tajwid Using Mel Frequency Cepstral Coefficients (MFCC) and Normalization of Dominant Weight (NDW)

by Agfianto Eko PUTRA, Wiwit SURYANTO, Agung Nugraha SULISTYANA
Seismic data analysis of the 2006 Merapi volcano eruption has been carried out using the Continuous Wavelet Transform (CWT) and the Wavelet-based Decomposition and Correlation (WAVEDECOR) combined with the Fast Fourier Transform (FFT). The CWT is used to show the frequency pattern of the event while the WAVEDECOR [...]

Continue reading about Analysis of 2006 Merapi Eruption Data Based on Continous Wavelet Transform, Wavelet Decomposition and Correlation

Achmad Solichin, Agus Harjoko, and Agfianto Eko Putra
This study proposed a model for determining the movement direction of the object based on the optical flow features. To increase the speed of computational time, optical flow features derived into a Histograms of Oriented Optical Flow (HOOF). We extracted them locally on the grid with a certain [...]

Continue reading about Movement Direction Estimation on Video using Optical Flow Analysis on Multiple Frames

Agfianto Eko Putra, Catur Atmaji, and Fajrul Ghaleb
In the area of affective computing technology, the classification of emotions can be used for a variety of things such as health, entertainment, education, etc. This study determined the classification of emotions based on EEG (Electroencephalography) signals, which is emotions are classified according to the 2-dimensional graphics modeling [...]

Continue reading about EEG-Based Emotion Classification Using Wavelet Decomposition and K-Nearest Neighbor

Catur Atmaji, Agfianto Eko Putra, and Irvan Albab Tontowi
Many research on how the human brain works have been done in the last century. The use of electroencephalogram signal generated from quantifying the brainwave has been developed in many areas including the development of brain-computer interface (BCI) concept. One type of BCI that interesting for the [...]

Continue reading about Three-Class Classification of EEG Signals Using Support Vector Machine Methods

Suwanto Raharjo, Retantyo Wardoyo, Agfianto Eko Putra
Proper nouns (often abbreviated PN or NNP) are a class of words important in labeling and subsequent text processing, especially in natural language processing (NLP). Name entity recognition (NER) is one study that requires PN. The lack of labeled data for Indonesian text, especially the PN label, may be [...]

Continue reading about Detecting proper nouns in indonesian-language translation of the quran using a guided method

By Catur Atmaji, Agfianto Eko Putra, Hanif Arrijal
Abstract
In the past few decades, biomedical signals have played important roles in assisting diagnosis for medical purposes. After the rose of brain-computer interfaces (BCI) and human-machine interaction (HMI) concept, biomedical signals such as an electroencephalograph (EEG) and electrooculogram (EOG) begun to be implemented in control and communication systems. EOG, [...]

Continue reading about Sliding Window Method for Eye Movement Detection based on Electrooculogram Signal

by Hesti Khuzaimah Nurul Yusufiyah, Ilona Usuman, Agfianto Eko Putra, Triyogatama Wahyu Widodo
This research is motivated by the condition of children with autism who require continuous monitoring without a parent accompany, and certain therapies who is capable to reduce repetitive behaviors and increase the concentration. Music therapy is one of the treatment which able to perform [...]

Continue reading about The Application of Music Therapy For Children with Autism Based On Facial Recognition Using Eigenface Method