Metadata-Version: 2.4
Name: ConMedRL
Version: 1.0.1
Summary: An Offline Constrained Reinforcement Learning Toolkit for Medical Decision Making
Home-page: https://github.com/smt970913/ConMED-RL
Author: Maotong Sun, Jingui Xie
Author-email: Maotong Sun <maotong.sun@tum.de>, Jingui Xie <jingui.xie@tum.de>
Maintainer-email: Maotong Sun <maotong.sun@tum.de>, Jingui Xie <jingui.xie@tum.de>
License: MIT License
        
        Copyright (c) 2025 Maotong Sun, Jingui Xie
        
        Permission is hereby granted, free of charge, to any person obtaining a copy
        of this software and associated documentation files (the "Software"), to deal
        in the Software without restriction, including without limitation the rights
        to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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Project-URL: Homepage, https://github.com/smt970913/ConMED-RL
Project-URL: Documentation, https://github.com/smt970913/ConMED-RL#readme
Project-URL: Repository, https://github.com/smt970913/ConMED-RL
Project-URL: Bug Tracker, https://github.com/smt970913/ConMED-RL/issues
Keywords: reinforcement learning,constrained reinforcement learning,offline reinforcement learning,clinical decision support,healthcare,ICU,critical care,machine learning,artificial intelligence
Classifier: Development Status :: 4 - Beta
Classifier: Intended Audience :: Healthcare Industry
Classifier: Intended Audience :: Science/Research
Classifier: Topic :: Scientific/Engineering :: Artificial Intelligence
Classifier: Topic :: Scientific/Engineering :: Medical Science Apps.
Classifier: License :: OSI Approved :: MIT License
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: 3.10
Classifier: Operating System :: OS Independent
Requires-Python: >=3.8
Description-Content-Type: text/markdown
License-File: LICENSE
Requires-Dist: flask==2.2.2
Requires-Dist: scikit-learn==1.2.1
Requires-Dist: torch
Requires-Dist: numpy==1.23.5
Requires-Dist: tqdm==4.64.1
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Requires-Dist: pillow==9.4.0
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# ConMED-RL: An OCRL-Based Toolkit for Medical Decision Support

<div style="text-align: center;">
    <img src="image/ConMED-RL Logo.png" width="400">
</div>

This repository provides the implementation of an **Offline Constrained Reinforcement Learning (OCRL)** - based decision support toolkit for medical decision-making. The toolkit is developed based on our research on **ICU extubation** and **discharge** decision-making. It builds on our studies in modeling and optimizing clinical decisions under uncertainty in the ICU setting.
In addition to the codebase, we provide two curated datasets designed to facilitate further research on extubation and discharge decision-making tasks.
This repository is created by **Maotong Sun** (maotong.sun@tum.de) and **Jingui Xie** (jingui.xie@tum.de).

**This toolkit is based on our accepted paper on ICU discharge decision-making published in *IISE Transactions on Healthcare Systems Engineering* (available in the `Previous_Research/` folder). The research on ICU extubation decision-making is currently under review.**

## Repository Structure

```
ICU-Decision Making-OCRL/
│
├── CDM-Software/                            # Clinical Decision Making Software
│   ├── web_application_demo.py              # Main web application (Flask)
│   ├── web_application_test.py              # Web application testing
│   ├── interactive_support.py               # Interactive decision support system
│   ├── test_environment.py                  # Environment testing utilities
│   ├── run_app.bat                          # Application runner (Windows)
│   ├── run_app.sh                           # Application runner (Linux/Mac)
│   └── DEPLOYMENT_GUIDE.md                  # Deployment documentation
│
├── ConMedRL/                                # Core OCRL framework
│   ├── __init__.py                          # Package initialization
│   ├── conmedrl.py                          # Main OCRL implementation - discrete action space
│   ├── conmedrl_continuous.py               # Main OCRL implementation - continuous action space
│   ├── data_loader.py                       # DataLoader for sampling transitions
│
├── Data/                                    # Datasets
│   ├── mimic_iv_icu_extubation/
│   │   └── data_preprocess.py               # MIMIC-IV extubation data preprocessing
│   ├── mimic_iv_icu_discharge/         
│   │   └── data_preprocess.py               # MIMIC-IV discharge data preprocessing
│   ├── SICdb_extubation/                    # Salzburg extubation dataset
│   └── SICdb_discharge/                     # Salzburg discharge dataset
│
├── Experiment Notebook/                     # Jupyter notebooks for experiments
│   ├── Example_MIMIC-IV_Extubation_Decision_Making.ipynb
│   ├── Example_MIMIC-IV_Discharge_Decision_Making.ipynb
│   ├── MIMIC_IV_dataset_prepare.ipynb
│   └── Salzburg_dataset_prepare.ipynb
│
├── Software_FQE_models/                     # Pre-trained models and software tools
│   ├── discharge_decision_making/           # Discharge decision models  
│   └── extubation_decision_making/          # Extubation decision models
│
├── Previous_Research/                       # Published research papers
│   └── IISE-Transactions-on-HSE_2025_Discharge_with_Multiple_Readmissions_and_Constraints.pdf
│
├── image/                                   # Documentation images
│
├── README.md                                # Project documentation
├── LIBRARY_USAGE.md                         # Python library usage guide
├── requirements.txt                         # Python dependencies
├── setup.py                                 # Package setup file (setuptools)
├── pyproject.toml                           # Modern Python package configuration
├── build_package.py                         # Package build and publish script
├── MANIFEST.in                              # Package file inclusion rules
├── runtime.txt                              # Python runtime specification
└── Procfile                                 # Process file for deployment
```

## Installation Guideline

ConMED-RL supports multiple installation methods to accommodate different use cases and environments. Choose the method that best fits your needs:

### Prerequisites

- **Python 3.10.14** (recommended, as specified in `runtime.txt`)
- **Git** for cloning the repository

### Method 1: PyPI Installation (Recommended)

For the core ConMED-RL framework:

```bash
# Install from PyPI
pip install ConMedRL

# Or install directly from GitHub
pip install git+https://github.com/smt970913/ConMED-RL.git

# Install with optional dependencies
pip install ConMedRL[models,viz]  # For visualization and model utilities
pip install ConMedRL[dev]         # For development tools
```

**Verify installation:**
```bash
python -c "import ConMedRL; print('ConMED-RL version:', ConMedRL.__version__)"
```

### Method 2: Local Installation (Recommended for Development and Web Application)

For full repository access including web application and experiment notebooks:

1. **Clone the repository:**
   ```bash
   git clone https://github.com/your-username/ICU-Decision-Making-OCRL.git
   cd ICU-Decision-Making-OCRL
   ```

2. **Create a virtual environment:**
   ```bash
   # Using conda (recommended)
   conda create -n ConMedRL python=3.10.14
   conda activate ConMedRL
   
   # OR using venv
   python -m venv ConMedRL_env
   # On Windows:
   ConMedRL_env\Scripts\activate
   # On Linux/Mac:
   source ConMedRL_env/bin/activate
   ```

3. **Install dependencies:**
   ```bash
   pip install -r requirements.txt
   ```

4. **Set up the environment:**
   ```bash
   export PYTHONPATH="${PYTHONPATH}:$(pwd)"
   ```

5. **Verify installation:**
   ```bash
   python -c "import ConMedRL; print('ConMED-RL version:', ConMedRL.__version__)"
   ```

### Quick Start for Different Use Cases

#### For Research and Experimentation:
1. Follow **Method 2** (Local Installation)
2. Launch Jupyter notebooks:
   ```bash
   jupyter notebook "Experiment Notebook/"
   ```
3. Start with example notebooks for MIMIC-IV datasets

#### For Clinical Decision Support:
1. Follow **Method 2** (Local Installation)  
2. Run the web application:
   ```bash
   cd CDM-Software
   python web_application_demo.py
   ```
3. Access the application at `http://localhost:5000`
4. Refer to `CDM-Software/DEPLOYMENT_GUIDE.md` for detailed deployment instructions

#### For Custom Development:
1. Follow **Method 1** (PyPI Installation) for quick setup
2. Import ConMED-RL components:
   ```python
   from ConMedRL import FQE, FQI, TrainDataLoader, ValTestDataLoader
   from Data import mimic_iv_icu_discharge, mimic_iv_icu_extubation
   ```
3. For accessing source code and examples, use **Method 2** (Local Installation)

### Dependencies Overview

The toolkit requires the following main dependencies:
- **PyTorch**: Building framework for OCRL algorithms
- **Flask**: Web framework for the clinical decision support interface
- **scikit-learn**: Dataset split
- **pandas/numpy**: Data manipulation and numerical computing
- **Dask**: Large data manipulation

### Troubleshooting

**Common Installation Issues:**

1. **PyTorch installation issues:**
   ```bash
   # For CPU-only installation:
   pip install torch --index-url https://download.pytorch.org/whl/cpu
   
   # For GPU support (CUDA):
   pip install torch --index-url https://download.pytorch.org/whl/cu118
   ```

2. **Memory issues with large datasets:**
   - Ensure sufficient RAM (minimum 8GB recommended)
   - Use data batching for large datasets

**Getting Help:**
- Check the `CDM-Software/DEPLOYMENT_GUIDE.md` for detailed deployment instructions
- Review example notebooks in `Experiment Notebook/` directory
- Contact the maintainers: maotong.sun@tum.de

## Implementation Guideline
<div style="text-align: center;">
    <img src="image/ConMED-RL_pipeline.svg" width = 1400> 
</div>

### Dataset Module
The datasets are organized in the `Data/` folder with separate subdirectories for different clinical scenarios (discharge decision-making and extubation decision-making) and data sources (MIMIC-IV and SICdb).

#### Data Preprocessing Scripts
The toolkit includes specialized data preprocessing scripts located in `Data/*/data_preprocess.py` that transform diverse clinical datasets into standardized formats compatible with sequential decision-making frameworks. Our unified preprocessing architecture employs consistent Python classes and functions across all four `data_preprocess.py` implementations, with dataset-specific variations limited to the data selection phase. This design choice ensures reproducible data transformations while maintaining the flexibility needed to accommodate the unique characteristics of different medical datasets and research objectives.

**Key Feature**: Our preprocessing pipeline is implemented entirely in `Python` using `Dask` for efficient processing of large-scale clinical datasets (e.g., chartevents tables), **eliminating the need for SQL databases or complex data infrastructure**. This approach significantly simplifies the setup process and enhances reproducibility for researchers.

The preprocessing pipeline transforms raw clinical data into two structured pandas DataFrames that contain all necessary components for Markov Decision Process (MDP) formulation:
- **State Table**: Contains all physiological variables and clinical measurements that constitute the state space
- **Outcome Table**: Contains action decisions, terminal indicators (`done`), and reward information

These two tables provide the essential MDP components required for model-free offline reinforcement learning training.

#### Multi-language Support
For datasets that contain medical terminology in different languages (e.g., German in the SICdb), we provide an interface for calling large language model tools to perform translation and terminology lookup. **The large language model tools are used exclusively for translation purposes and are designed to maintain strict data privacy and confidentiality.**

#### Data Availability
The original medical research datasets (MIMIC-IV and SICdb) are not included in this repository due to privacy and licensing requirements. However, they can be obtained from authorized sources:

- **MIMIC-IV**: Available through [PhysioNet](https://physionet.org/content/mimiciv/3.1/) following proper data use agreements.
- **SICdb**: Available through [PhysioNet](https://physionet.org/content/sicdb/1.0.8/) following proper data use agreements.

Please ensure you have the appropriate permissions and follow all data use agreements when accessing these datasets.


### OCRL Algorithm Module
<div style="text-align: center;">
    <img src="image/dataset_usage.svg" width = 500> 
</div>

The OCRL Algorithm Module is the core component of ConMED-RL, implementing state-of-the-art offline constrained reinforcement learning algorithms specifically designed for critical care decision-making problems. This module bridges the gap between preprocessed clinical data and actionable decision support models.

#### Data Loading and Management

The `ConMEDRL/data_loader.py` module transforms preprocessed pandas DataFrames into training-ready formats for offline reinforcement learning algorithms. This lightweight framework handles numerical data loading and batch preparation for model training. Alternatively, researchers can use the generated **Outcome Table** and **State Table** directly to construct MDP environments with established Python RL libraries such as `d3rlpy`.

**Core Components** - `data_loader.py`:

1. **`TrainDataLoader` Class**:
   - **Purpose**: Handles training data preparation and batch generation.
   - **Key Methods**:
     - `data_buffer_train()`: Loads training data into PyTorch sampling buffer.
     - `data_torch_loader_train()`: Returns PyTorch tensors for training.
   - **Features**:
     - Custom done condition function support.
     - Configurable constraint cost extraction.
     - Terminal state handling.
     - Memory buffer integration with `ReplayBuffer`.

2. **`ValTestDataLoader` Class**:
   - **Purpose**: Manages validation and testing data processing.
   - **Key Methods**:
     - `data_buffer()`: Loads validation/test data into buffer.
     - `data_torch_loader()`: Returns tensors for validation or testing.
   - **Features**:
     - Separate validation and test data handling.
     - Flexible data extraction modes.

**Terminal Condition Functions** - `done_condition_function_examples.py`:
- **`discharge_done_condition()`**: Example function for discharge decision-making scenarios.
- **Custom Logic**: Users can define domain-specific terminal conditions based on clinical outcomes.
- **Integration**: These functions are passed to data loader methods to determine episode termination.

**Data Flow Process**:
```
Preprocessed DataFrames → DataLoader → ReplayBuffer → PyTorch Tensors → RL Training
     ↓                        ↓              ↓               ↓               ↓
State/Outcome Tables → Buffer Loading → Memory Sampling → Batched Tensors → Model Updates
```

#### Core OCRL Framework

The `ConMEDRL/ConMEDrl.py` module implements the complete offline constrained reinforcement learning (OCRL) framework, featuring advanced algorithms specifically adapted for constrained medical decision-making.

**Approximation Model Architectures:**

1. **`FCN_fqe`**:
   - **Architecture**: Linear approximation/Fully connected neural network for Q-value estimation in policy evaluation.
   - **Features**: Configurable hidden layers, multiple activation functions, flexible architecture.

2. **`FCN_fqi`**:
   - **Architecture**: Linear approximation/Fully connected neural network for Q-value estimation in policy optimization.
   - **Features**: Similar architecture to FCN_fqe, optimized for constrained policy learning.

**Data Management:**

3. **`ReplayBuffer` Class**:
   - **Purpose**: Storage and sampling of offline clinical transitions.
   - **Key Methods**:
     - `push()`: Stores transitions (state, action, obj_cost, con_cost, next_state, done).
     - `sample()`: Random sampling for training batches.
     - `extract()`: Extract all stored data for validation/testing.

**Core Algorithms:**

4. **`FQE` (Fitted Q Evaluation) Class**:
   - **Purpose**: Evaluates the performance of existing clinical policies or policies derived by RL algorithm.
   - **Key Methods**:
     - `update()`: Updates Q-function using Bellman equation.
     - `avg_Q_value_est()`: Estimates average Q-values with confidence intervals.
     - `save()`: Saves trained model.
   - **Applications**: Policy evaluation and benchmarking.

5. **`FQI` (Fitted Q Iteration) Class**:
   - **Purpose**: Learns optimal decision policies with/without constraints.
   - **Key Methods**:
     - `update()`: Updates Q-function with constraint incorporation.
     - `avg_Q_value_est()`: Estimates average Q-values.
     - `rl_policy()`: Generates optimal actions given states.
     - `save()`: Saves trained model.
   - **Features**: Handles multiple constraints using Lagrange multipliers.

**Configuration and Training:**

6. **`RLConfig_custom` Class**:
   - **Purpose**: Configuration object containing all hyperparameters.
   - **Parameters**: Learning rates, batch size, network architectures, constraints, optimizers, loss functions.

7. **`RLConfigurator` Class**:
   - **Purpose**: Interactive configuration setup and management.
   - **Key Methods**:
     - `choose_config_method()`: Interactive configuration selection.
     - `load_config_from_json()`: Load configuration from file.
     - `save_config_to_json()`: Save configuration to file.
     - `input_rl_config()`: Manual configuration input.

8. **`RLTraining` Class**:
   - **Purpose**: Orchestrates the complete training pipeline.
   - **Key Methods**:
     - `fqi_agent_config()`: Initialize FQI agent.
     - `fqe_agent_config()`: Initialize FQE agent.
     - `train()`: Main training loop with constraint handling.
   - **Features**: Model saving, progress tracking, constraint satisfaction monitoring.

**Utility Functions:**
- **`save_ocrl_models_and_data()`**: Comprehensive model and data saving functionality.

#### Important Notes on Data Access and Algorithm Validation

**Data Access Requirements:**

Access to clinical datasets (MIMIC-IV, SICdb, etc.) requires users to independently obtain proper ethical approval and data use agreements from the respective data providers. **Users are responsible for:**
- Completing required ethics training and certifications
- Obtaining institutional approval for data access
- Adhering to all data use agreements and privacy regulations
- Following proper data handling and security protocols

Please refer to the **Dataset Module** section above for links to authorized data sources and detailed information on data availability.

**Algorithm Performance and Validation:**

The actual experimental results and comprehensive performance evaluation of our OCRL algorithm module on real clinical datasets are documented in our **accepted paper published in *IISE Transactions on Healthcare Systems Engineering*** (available in the `Previous_Research/` folder). This publication provides:
- Rigorous validation on MIMIC-IV ICU discharge decision-making dataset
- Comprehensive benchmarking against baseline methods
- Statistical analysis of constraint satisfaction and policy performance
- Clinical significance and practical implications

**Demonstration and Usage:**

For detailed usage examples and practical implementations, please refer to the **`Experiment Notebook/`** directory, which contains comprehensive Jupyter notebooks demonstrating:
- Data preprocessing and loading
- Model configuration and training
- Policy evaluation and optimization
- Clinical decision-making applications
   - Case 1: ICU Extubation decision-making
   - Case 2: ICU Discharge decision-making

**Note**: The notebooks use processed demonstration data specifically prepared for illustrating the algorithm workflow and usage. These demonstration datasets are included to help users understand the implementation process without requiring access to the full clinical datasets.

This framework enables researchers and clinicians to develop, validate, and deploy offline constrained reinforcement learning systems for critical care environments.

### Software Module

The `CDM-Software/` directory contains the clinical decision support software implementation, providing an interactive web-based interface for healthcare professionals to utilize the trained OCRL models (the trained FQE models) in real clinical settings.

#### Interactive Decision Support System (`interactive_support.py`)

The core software module that implements the necessary Fitted-Q-Evaluation (FQE) model inside our OCRL framework optimized for real-time clinical decision support.

#### Web Application (`web_application_demo.py`)

A `Flask`-based web application (now only for demonstration) that provides an intuitive interface for clinical decision-making process.

**Application Features:**

1. **Model Selection Interface**:
   - **Model 1**: FQE Estimated Objective Cost (primary outcome evaluation)
   - **Model 2**: FQE Estimated Constraint Cost 1 (e.g., readmission risk)
   - **Model 3**: FQE Estimated Constraint Cost 2 (e.g., ICU length-of-stay)

2. **Patient Data Input System**:
   - Interactive form for inputing the values of physiological variables
   - Real-time progress tracking and validation
   - Data Scaling with pre-stored scaler (if necessary)

3. **Clinical Decision Support**:
   - Real-time assessment using the trained FQE models
   - Visual feedback and confidence intervals

4. **Technical Implementation**:
   - `Flask` web framework with Bootstrap UI
   - `PyTorch` model integration
   - `Scikit-learn` preprocessing pipeline
   - Secure model loading and prediction

#### Testing and Validation Tools

**Environment Testing (`test_environment.py`)**:
- **Purpose**: Validates system dependencies and file availability
- **Features**:
  - Package import verification (`Flask`, `PyTorch`, `NumPy`, `Scikit-learn`, `PIL`)
  - Model file existence checking
  - Path validation for deployment
  - Comprehensive system readiness assessment

**Application Launcher (`run_app.bat` / `run_app.sh`)**:
- **Purpose**: Cross-platform application startup scripts
- **Features**:
  - Multiple Python interpreter detection (python, py, python3)
  - Automatic dependency checking and validation
  - Virtual environment activation support
  - Error handling and user guidance
- **Usage**:
  - Windows: `run_app.bat`
  - Linux/Mac: `chmod +x run_app.sh && ./run_app.sh`

#### Deployment and Configuration

**Deployment Guide (`DEPLOYMENT_GUIDE.md`)**:
- **System Requirements**: Memory, storage, and network specifications
- **Deployment Methods**:
  - Cloud server deployment (AWS EC2, Alibaba Cloud ECS)
  - Local server installation
- **Security Configuration**: HTTPS, firewall, environment variables
- **Monitoring and Maintenance**: Logging, health checks, data backup
- **Clinical Usage Workflow**: Step-by-step physician user guide

**Key Deployment Features**:
- Production-ready configuration with Gunicorn
- SSL/HTTPS support for secure clinical data handling
- Comprehensive troubleshooting guide

#### Clinical Integration Workflow

```
Patient Data Input → Data Preprocessing → Model Selection → OCRL Prediction → Clinical Decision Support
       ↓                    ↓                  ↓               ↓                    ↓
Physiological → MinMax Scaling → FQE Model → Risk Assessment → Physician Review
Parameters                                                                      ↓
                                                                          Clinical Decision
```

**Supported Clinical Scenarios**:
- **ICU Discharge Decision Support**: Risk assessment for patient discharge readiness
- **ICU Extubation Decision Support**: Evaluation of mechanical ventilation weaning for patients in ICU

This software module bridges the gap between research-grade OCRL algorithms and practical clinical deployment, providing healthcare professionals with AI-assisted decision support tools that maintain clinical safety standards while leveraging advanced Offline RL techniques.

For detailed deployment instructions and clinical usage guidelines, refer to the `CDM-Software/DEPLOYMENT_GUIDE.md` documentation.

## Docker Deployment Module

**Status: Under Development**

The Docker deployment module (`Docker-Deployment/`) is currently under active development and testing. This module aims to provide containerized deployment solutions for the ConMED-RL toolkit, including:

- **Planned Features**:
  - Dockerized application with optimized image configuration
  - Multi-environment support (development, production, research)
  - Nginx reverse proxy integration
  - Monitoring solutions (Prometheus + Grafana)
  - Automated build and deployment scripts
  - Production-ready configurations with security hardening

- **Current Status**:
  - Docker configurations are available in the repository
  - Comprehensive testing and validation are in progress
  - Documentation is being finalized

**Note**: Until the Docker deployment module is fully tested and validated, we recommend using **Method 2 (Local Installation)** for development and production deployments. For quick setup of the core algorithm module, **Method 1 (PyPI Installation)** is recommended. Please refer to the Installation Guideline section above for detailed instructions.

For updates on the Docker deployment module, please check the repository or contact the maintainers.
