PIVEN: A Deep Neural Network for Prediction Intervals with Specific Value Prediction

The official implementation of the paper "PIVEN: A Deep Neural Network for Prediction Intervals with Specific Value Prediction" by Eli Simhayev, Gilad Katz and Lior Rokach.

Update 21.6.22

Our paper has been accepted to Knowledge Based Systems 🙂

https://doi.org/10.1016/j.knosys.2022.108685

 

TL;DR

A neural network with a PIVEN output layer returns a point prediction as well as a lower and upper prediction interval (PI) for each target in a regression problem. The image below shows how the lower and upper PI change as we keep training the model:

<p align="center"> <img src="piven_gif.gif"></img> </p>

We thank Jasper Ginn (@JasperHG90) from GoDataDriven (godatadriven/piven) for the image 🙂

Quickstart in Google Colab

A simple fast colab demo using Keras is included in PIVEN_Demo.ipynb.

Contents

├── age
│   ├── Bone age ground truth.xlsx --- RSNA Bong Age Ground-Truth
│   ├── get_age_data.sh --- Download dataset from kaggle
│   ├── main.py --- Run bone age experiment
├── imdb
│   ├── densenet.py
│   ├── generators.py
│   ├── get_imdb_data.sh --- Download dataset
│   ├── imdb_create_db.py --- Run after downloading the dataset
│   ├── main.py --- Run imdb age estimation experiment
│   ├── model.py
│   ├── subpixel.py
│   ├── tensorflow_backend.py
│   ├── train_callbacks.py
│   └── utils.py
└── uci
    ├── code
    │   ├── DataGen.py
    │   ├── DeepNetPI.py
    │   ├── alpha_experiment.py --- Run alpha experiment on UCI 
    │   ├── main.py --- Run UCI experiments
    │   ├── params_deep_ens.json --- deep ensembles hyperparameters
    │   ├── params.json --- piven and qd hyperparameters
    │   └── utils.py
    ├── get_song_dataset.sh --- Download Year Prediction MSD dataset
    └── UCI_Datasets

Requirements

• pandas==0.25.2
• numpy==1.18.1
• matplotlib==3.0.3
• tensorflow==1.15.0
• keras==2.3.1
• xlrd==1.2.0
• scikit-learn==0.22
• tqdm==4.45.0
• opencv-python==4.2.0.34

To install requirements:

pip install -r requirements.txt

All experiments tested on Ubuntu 18.04 with Python 3.6.

Acknowledgements

Our UCI experiments were inspired by Tim Pearce's implementation of High-Quality Prediction Intervals for Deep Learning: A Distribution-Free, Ensembled Approach. Moreover, in IMDB age estimation experiment we used the preprocessing implemented in SSR-Net: A Compact Soft Stagewise Regression Network for Age Estimation.

Citing PIVEN

If you use PIVEN in your research please use the following BibTeX entry:

@article{simhayev2022integrated,
  title={Integrated prediction intervals and specific value predictions for regression problems using neural networks},
  author={Simhayev, Eli and Katz, Gilad and Rokach, Lior},
  journal={Knowledge-Based Systems},
  volume={247},
  pages={108685},
  year={2022},
  publisher={Elsevier}
}