Publications

Automatic mixed precision and distributed data-parallel training for satellite image classification using CNN

Published in Fifteenth International Conference on Machine Vision (ICMV 2022), 2023

This work proposed the implementation of distributed data parallelism (DDP) and automatic mixed precision (AMP) to minimize the memory usage and optimizing usability of GPUs while improving the accuracy of Artificial Neural Network (ANN) model in classifying earth terrains from satellite images

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Synthesizing Missing Travel Time of P-Wave and S-Wave: A Two-stage Evolutionary Modelling Approach

Published in IEEE Sensors Journal Volume 23 Issue 14, 2023

This work proposed a different approach of predicting compressional (P) and shear (S) wave sonic log response for petroleum subsurface characterization using genetic programming approach that produces a set of explainable mathematical equations related to different logs as features

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Modern Computer Vision for Oil Palm Tree Health Surveillance using YOLOv5

Published in Green Energy Computing and Sustainable Technology (GECOST) International Conference, 2023

This work proposed YOLOv5 object detection model to improve the aerial surveillance on palm oil (Elaeis guinensis) health using Unmanned Aerial Vehicles (UAVs)

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Seal Capacity Evaluation of CO2 Storage in Carbonate Reef Reservoirs using Equivalent Grain Size Method

Published in 1st EAGE Workshop on Faults in Groundwater, CO2 and Hydrocarbons in Asia Pacific (Canberra, Australia), 2021

This paper discusses our proposed methodology that we (Dr. Kazuo Nakayama in FGI Tokyo and my colleague Kevyn Augusta) developed to evaluate the capacity of seal rock for CCS using the Equivalent Grain Size (EGS) method. Using relation between seal porosity and pore throat size, the EGS method assumes hydrodynamic equilibrium of CO2-gas mixed fluids to calculate each column height in the carbonate reef structure and maximum pressure allowed for CO2 injection.

Integration of Reservoir, Rock Physics, Seismic, and Geomechanical Modelling for CO2 Injection in Carbonate Reef Reservoir

Published in The 82nd EAGE Annual Conference in Amsterdam, 2020

This paper presents a novel methodology for the integration of multiple geophysical methods (rock physics modeling, time-lapse seismic modeling, and geomechanical analysis) for the purpose of monitoring Carbon Capture and Storage in a carbonate reef reservoir.