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What is this README and REPO?

This repository provides python codes to reproduce the plots and tables from the paper Exploratory Analysis of Machine Learning Methods in Geothermal Energy Research. (https://geothermal-energy-journal.springeropen.com/articles/10.1186/s40517-021-00200-4) The file formats are in Jupyter Notebook IDE format (.ipynb). If you wish to obtain a .py version, please email to seho0808@vt.edu.

How to use the repo?

First, there is a video describing how to reproduce the results. Link: https://www.youtube.com/watch?v=lc5TMNuvQ-8&ab_channel=%EC%84%B8%ED%98%B8

To reiterate what the video was talking about,

  1. download the AASG Dataset and clean_new_well_data_fixed.csv and optim_result.out files.
  2. download any of the .ipynb code files from github that you would like to run.
  3. if you want to use the saved model, you should look at the "Load Saved Pickle Models.ipynb" file.

File Description

0305_Compare_New_and_Old_LONG_LAT.ipynb

This file compares the latitude and longitude information of the datasets.

Figure_11_Comparing_Well_Prediction.ipynb

This file has two legacy files in the repository. This one is the most current one. In "0310_HPTuning+ExcelMetric+NewWellMetric.ipynb", we tune the hyperparameters of the machine learning models. In "Final Metrics and Graphs.ipynb", the tuned hyperparameters are actually used to test for the test data(which are the new well data). In "Figure_11_Comparing_well_prediction.ipynb", we had to change the models' training and testing process to K-fold which lead us to regenerate the plots and data. *The metrics and graphs are listed inside the file as well.

Figure_12_Q_map.ipynb

Regenerated Q map with retuned XGBoost from the legacy file "0316_Q_map.ipynb".

Figure_8_depth_maps.ipynb

Regenerated heat maps per depth from the legacy file "0314_depth_maps.ipynb".

HP_Tuning.ipynb

This file has the code that tunes all the models with appropriate hyperparameters. Also contains saving the pickle files as .sav files. The pickle files generated here can be downloaded from here:

finalized_model_RF.sav: https://drive.google.com/file/d/130C3hOhBRKxC-CZ_QTQpTMcQw6RuwCsc/view?usp=sharing

finalized_model_XGB.sav: https://drive.google.com/file/d/1NY8Z-Ukrhz6gS-pkKoW7RuK6Z2_5j2XW/view?usp=sharing

Saving Pickles for Ridge and Keras.ipnyb

This file is saves Ridge and Keras pickle files. Result files are available at:

finalized_model_DNN.zip: https://drive.google.com/file/d/1x5wHJkuPohdscIif7Sk1QI_vSmPWyEX8/view?usp=sharing

finalized_model_ridge.sav: https://drive.google.com/file/d/1ZzKDvbT6I2422Rg886c16ZUDyHAATrYd/view?usp=sharing

fixing_clean_well_data.ipynb

We previously used an incorrect method to correct the new well data. After a major change in paper, we rectify the wrong method with a correct formula. The data engineering part of that process is inside this file.

Table_5_Q_Prediction.ipnyb

Gradient prediction comparison for all models. Used in table 5 of the original paper.

_Organized Tests.ipynb

This is a legacy version of "0310_HPTuning+ExcelMetric+NewWellMetric.ipynb". Only the importance plot matters in this file for use.

Legacy Files

0306_Comparing Well Prediction.ipynb

This file is a legacy file for "Final Metrics and Graphs.ipynb" file. Hence, you can ignore it. It was kept to show the last version before the major change.

0310_HPTuning+ExcelMetric+NewWellMetric.ipynb

Legacy version for "HP_Tuning.ipynb" file. It was kept to show the last version before the major change.

0314_depth_maps.ipynb

Comparing algorithms for the interpolation of the heat map. Legacy file for "Figure_8_depth_maps.ipynb".

0315_map_excel_data.ipynb

Tuning the KNN interpolation method.

0316_Q_map.ipynb

Q map with XGBoost. Legacy file for "Figure_12_Q_map.ipynb".

Final Metrics and Graphs.ipynb

Legacy file for "Figure_11_Comparing_Well_Prediction.ipynb".

Prerequisite Datasets (You have to download these first)

  1. AASG Dataset - This file is used throughout the codes and contains the well data throughout North-Eastern USA. => Go to https://gdr.openei.org/submissions/638 => Click Download next to ThermalQualityAnalysisThermalModelDataFilesStateWellTemperatureDatabases.zip => If you unzip, there should be AASG_Thermed_AllThicksAndConds.xlsx

  2. New Well Dataset - This file is cleaned-up version of new well data (2016~) and used in some of the files. => Go to https://drive.google.com/file/d/1sm0CdmvixpEOpWiGkrh3rTVb7nz0r8pH/view?usp=sharing

Document Figures

Many of the figures and tables are omitted as they are not produced by ourselves, or of less importance in terms of code documentation.

Figure 1 - 0305_Compare_New_and_Old_LONG_LAT.ipynb

Figure 6 - _Organized Tests.ipynb* *This is a legacy version of 0310_HPTuning+ExcelMetric+NewWellMetric.ipynb. Therefore, you should ignore everyting except the importance plot.

Figure 7 - HP_Tuning.ipynb

Figure 8 - Figure_8_depth_maps.ipynb

Figure 11 - Figure_11_Comparing_Well_Prediction.ipynb

Figure 12 - Figure_12_Q_map.ipynb

Video Link

We also provide a video instruction about how to access data and run the models. https://youtu.be/4Gp_sEUGNi8

Tunned Hyper-parameters for all models

Ridge alpha: 10

RF Max_depth: 10 n_estimators: 50

XGB alpha: 1 lambda: 10 Max_depth: 10 n_estimators=100 gamma: 0.1

DNN structure 50-50-1 optimizer ADAM loss Mean squared error