In this directory you find all the scripts to process the data generated on Colosseum/SCOPE and produce the results (intermediate and final).

.
├── README.md
├── action-steering-plotting.py
├── action-steering-processing.py
├── analysis-explora.py
├── dt_train.py
├── extract_shap_values.py
├── motivation_computing_times_gpus.py
├── motivation_process-shap-computing-times.py
├── requirements.txt
├── shap_vs_dt.py
├── utils_attr_graphs.py
├── utils_db_process.py
├── utils_experiment_list.py
├── utils_experiment_list_action_steering.py
├── utils_generic_functions.py
├── utils_shap.py
└── utils_shap_plotting.py

The scripts are divided into two main groups:

1. Libraries with utility functions (their name start with utils).
2. Libraries to process the data and generate the results (run with python3 <script.py> - the scripts are internally automated to process the data and generate the results).

Specifically:

1. Libraries with functions:

   • utils_shap_plotting.py: functions to visualize SHAP explanations on the DRL inputs of the experiments
   • utils_shap.py: functions to extract SHAP values from the DRL agents applied in the experiments
   • utils_db_process.py: functions to process the pkl/log files that are the generated with SCOPE
   • utils_generic_functions.py: generic functions
   • utils_attr_graphs.py: functions for the attributed graphs
   • utils_experiment_list.py: configuration of experiments useful for the motivation (extract_shap_values.py, shap_vs_dt.py) and the core EXPLORA analysis (analysis-explora.py)
   • utils_experiment_list_action_steering.py: configuration of experiments useful for action steering analysis (action-steering-processing.py, action-steering-plotting.py)

2. Code for analysis:

   • Motivation, i.e., why SHAP or Decision Trees (DTs) do not work properly for the purpose (execute in the exact same order):
     • dt_train.py: trains XGBoost DTs on the offline dataset for the two agents; saves the model for later use in shap_vs_dt.py - Run as: python3 dt_train.py.
     • extract_shap_values.py: computes the SHAP values from the DRL agent directly and stores all the results in shap_explanations/drl_agent - Run as: python3 extract_shap_values.py after having selected in the main start_exp and tot_num_exp from utils_experiment_list.py. - Careful with this script: several experiments take hours to complete; make sure you set export TF_ENABLE_ONEDNN_OPTS=0 and have GPU enabled
     • shap_vs_dt.py: script to generate and export the results included in the motivation Section 3.2 of the paper: SHAP results and DT accuracy - Run as: python3 shap_vs_dt.py after selecting in the main the technique ("SHAP" or "DT") and the list of experiments per agent.
     • motivation_process-shap-computing-times.py: computes computing times for configurations of the embb-tfr2 (HT) and urllc-tfr2 (LL) agents - Run as: python3 motivation_process-shap-computing-times.py.
     • motivation_computing_times_gpus.py: computes computing times on the two GPUs for all configurations of the urllc-tfr2 - Run as: python3 motivation_computing_times_gpus.py.
   • EXPLORA core part:
     • analysis-explora.py: performs the major operations: creates attributed graphs, process them, synthesizes explanations from the attributed graphs, and build DTs on top of the generated explanations. The script generates the results in Section 6.2 and Appendix C of the paper. - Run as: python3 analysis-explora.py after selecting in the main the agent-traffic combination (agent variable), i.e., embb-tfr1, embb-tfr2, urllc-tfr1, or urllc-tfr2.
   • Action steering with intents:
     • action-steering-processing.py: processes the experiments performed on Colosseum/SCOPE with the EXPLORA xApp that builds at runtime the attributed graphs and implements the 3 strategies for action replacement (Section 5.2 of the paper); the script produces .npy files as output of the process that are the KPIs observed upon implementing the replacement strategies - Run as: python3 action-steering-processing.py; by default, the script will run over all the strategies: decomment the for loop to run one strategy at the time by setting the variable exp_strategy
     • action-steering-plotting.py: plots the intermediate results generated by the above script and generates the results of Section 6.3 and Appendix D of the paper - Run as: python3 action-steering-plotting.py by selecting the baseline_strategy and ar_strategy

The script extract_shap_values.py has been tested on a Platinum Intel Core i9 11900K/32GB/2TB/ with a RTX 3090 GPU, and a Dell PowerEdge XE8545 with 4x Nvidia A100 40 GB/400 W. All the other scripts have been tested on a Intel(R) Core(TM) i7-6600U CPU @ 2.60 GHz, with 8 GB of RAM, with Linux 5.11.0-22-generic #23~20.04.1-Ubuntu. All the results are reproducibile with such hardware/software configuration.