Gradient boosting trees method in the task of software identification

Salakhutdinova, Kseniya I.; Lebedev, Ilya; Krivtsova, Irina

doi:10.17586/2226-1494-2018-18-6-1016-1022

Cited by 8 publications

(1 citation statement)

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“…Boosting improves the performance of machine learning algorithms. Its essence lies in training each subsequent model using data from errors of previous models and further reducing errors [43]. This method can theoretically be used for any weak algorithm in order to reduce the learning error [44].…”

Section: Boosted Trees (Bt)mentioning

confidence: 99%

Hydraulic Flow Unit Classification and Prediction Using Machine Learning Techniques: A Case Study from the Nam Con Son Basin, Offshore Vietnam

Man¹,

Hien²,

Thong

et al. 2021

Energies

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The test study area is the Miocene reservoir of Nam Con Son Basin, offshore Vietnam. In the study we used unsupervised learning to automatically cluster hydraulic flow units (HU) based on flow zone indicators (FZI) in a core plug dataset. Then we applied supervised learning to predict HU by combining core and well log data. We tested several machine learning algorithms. In the first phase, we derived hydraulic flow unit clustering of porosity and permeability of core data using unsupervised machine learning methods such as Ward’s, K mean, Self-Organize Map (SOM) and Fuzzy C mean (FCM). Then we applied supervised machine learning methods including Artificial Neural Networks (ANN), Support Vector Machines (SVM), Boosted Tree (BT) and Random Forest (RF). We combined both core and log data to predict HU logs for the full well section of the wells without core data. We used four wells with six logs (GR, DT, NPHI, LLD, LSS and RHOB) and 578 cores from the Miocene reservoir to train, validate and test the data. Our goal was to show that the correct combination of cores and well logs data would provide reservoir engineers with a tool for HU classification and estimation of permeability in a continuous geological profile. Our research showed that machine learning effectively boosts the prediction of permeability, reduces uncertainty in reservoir modeling, and improves project economics.

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Section: Boosted Trees (Bt)mentioning

confidence: 99%