To SMOTE, or not to SMOTE?

Overview

To SMOTE, or not to SMOTE?

This package includes the code required to repeat the experiments in the paper and to analyze the results.

To SMOTE, or not to SMOTE?

Yotam Elor and Hadar Averbuch-Elor

Installation

# Create a new conda environment and activate it
conda create --name to-SMOTE-or-not -y python=3.7
conda activate to-SMOTE-or-not
# Install dependencies
pip install -r requirements.txt

Running experiments

The data is not included with this package. See an example of running a single experiment with a dataset from imblanaced-learn

# Load the data
import pandas as pd
import numpy as np
from imblearn.datasets import fetch_datasets
data = fetch_datasets()["mammography"]
x = pd.DataFrame(data["data"])
y = np.array(data["target"]).reshape((-1, 1))

# Run the experiment
from experiment import experiment
from classifiers import CLASSIFIER_HPS
from oversamplers import OVERSAMPLER_HPS
results = experiment(
    x=x,
    y=y,
    oversampler={
        "type": "smote",
        "ratio": 0.4,
        "params": OVERSAMPLER_HPS["smote"][0],
    },
    classifier={
        "type": "cat",  # Catboost
        "params": CLASSIFIER_HPS["cat"][0]
    },
    seed=0,
    normalize=False,
    clean_early_stopping=False,
    consistent=True,
    repeats=1
)

# Print the results nicely
import json
print(json.dumps(results, indent=4))

To run all the experiments in our study, wrap the above in loops, for example

for dataset in datasets:
    x, y = load_dataset(dataset)  # this functionality is not provided
    for seed in range(7):
        for classifier, classifier_hp_configs in CLASSIFIER_HPS.items():
            for classifier_hp in classifier_hp_configs:
                for oversampler, oversampler_hp_configs in OVERSAMPLER_HPS.items():
                    for oversampler_hp in oversampler_hp_configs:
                        for ratio in [0.1, 0.2, 0.3, 0.4, 0.5]:
                            results = experiment(
                                x=x,
                                y=y,
                                oversampler={
                                    "type": oversampler,
                                    "ratio": ratio,
                                    "params": oversampler_hp,
                                },
                                classifier={
                                    "type": classifier,
                                    "params": classifier_hp
                                },
                                seed=seed,
                                normalize=...,
                                clean_early_stopping=...,
                                consistent=...,
                                repeats=...
                            )

Analyze

Read the results from the compressed csv file. As the results file is large, it is tracked using git-lfs. You might need to download it manually or install git-lfs.

import os
import pandas as pd
data_path = os.path.join(os.path.dirname(__file__), "../data/results.gz")
df = pd.read_csv(data_path)

Drop nans and filter experiments with consistent classifiers, no normalization and a single validation fold

df = df.dropna()
df = df[
    (df["consistent"] == True)
    & (df["normalize"] == False)
    & (df["clean_early_stopping"] == False)
    & (df["repeats"] == 1)
]

Select the best HP configurations according to AUC validation scores. opt_metric is the key used to select the best configuration. For example, for a-priori HPs use opt_metric="test.roc_auc" and for validation-HPs use opt_metric="validation.roc_auc". Additionaly calculate average score and rank

from analyze import filter_optimal_hps
df = filter_optimal_hps(
    df, opt_metric="validation.roc_auc", output_metrics=["test.roc_auc"]
)
print(df)

Plot the results

from analyze import avg_plots
avg_plots(df, "test.roc_auc")

Citation

@misc{elor2022smote,
    title={To SMOTE, or not to SMOTE?}, 
    author={Yotam Elor and Hadar Averbuch-Elor},
    year={2022},
    eprint={2201.08528},
    archivePrefix={arXiv},
    primaryClass={cs.LG}
}

Security

See CONTRIBUTING for more information.

License

This library is licensed under the MIT-0 License. See the LICENSE file.

Owner
Amazon Web Services
Amazon Web Services
StyleGAN2-ADA - Official PyTorch implementation

Abstract: Training generative adversarial networks (GAN) using too little data typically leads to discriminator overfitting, causing training to diverge. We propose an adaptive discriminator augmenta

NVIDIA Research Projects 3.2k Dec 30, 2022
PyTorch source code for Distilling Knowledge by Mimicking Features

LSHFM.detection This is the PyTorch source code for Distilling Knowledge by Mimicking Features. And this project contains code for object detection wi

Guo-Hua Wang 4 Dec 17, 2022
A curated list of awesome deep long-tailed learning resources.

A curated list of awesome deep long-tailed learning resources.

vanint 210 Dec 25, 2022
Official repository for "Orthogonal Projection Loss" (ICCV'21)

Orthogonal Projection Loss (ICCV'21) Kanchana Ranasinghe, Muzammal Naseer, Munawar Hayat, Salman Khan, & Fahad Shahbaz Khan Paper Link | Project Page

Kanchana Ranasinghe 83 Dec 26, 2022
Parameterising Simulated Annealing for the Travelling Salesman Problem

Parameterising Simulated Annealing for the Travelling Salesman Problem

Gary Sun 55 Jun 15, 2022
Real-time Object Detection for Streaming Perception, CVPR 2022

StreamYOLO Real-time Object Detection for Streaming Perception Jinrong Yang, Songtao Liu, Zeming Li, Xiaoping Li, Sun Jian Real-time Object Detection

Jinrong Yang 237 Dec 27, 2022
Sharpened cosine similarity torch - A Sharpened Cosine Similarity layer for PyTorch

Sharpened Cosine Similarity A layer implementation for PyTorch Install At your c

Brandon Rohrer 203 Nov 30, 2022
Physics-Aware Training (PAT) is a method to train real physical systems with backpropagation.

Physics-Aware Training (PAT) is a method to train real physical systems with backpropagation. It was introduced in Wright, Logan G. & Onodera, Tatsuhiro et al. (2021)1 to train Physical Neural Networ

McMahon Lab 230 Jan 05, 2023
The Python code for the paper A Hybrid Quantum-Classical Algorithm for Robust Fitting

About The Python code for the paper A Hybrid Quantum-Classical Algorithm for Robust Fitting The demo program was only tested under Conda in a standard

Anh-Dzung Doan 5 Nov 28, 2022
MOOSE (Multi-organ objective segmentation) a data-centric AI solution that generates multilabel organ segmentations to facilitate systemic TB whole-person research

MOOSE (Multi-organ objective segmentation) a data-centric AI solution that generates multilabel organ segmentations to facilitate systemic TB whole-person research.The pipeline is based on nn-UNet an

QIMP team 30 Jan 01, 2023
tf2-keras implement yolov5

YOLOv5 in tesnorflow2.x-keras yolov5数据增强jupyter示例 Bilibili视频讲解地址: 《yolov5 解读,训练,复现》 Bilibili视频讲解PPT文件: yolov5_bilibili_talk_ppt.pdf Bilibili视频讲解PPT文件:

yangcheng 254 Jan 08, 2023
*ObjDetApp* deploys a pytorch model for object detection

*ObjDetApp* deploys a pytorch model for object detection

Will Chao 1 Dec 26, 2021
This script runs neural style transfer against the provided content image.

Neural Style Transfer Content Style Output Description: This script runs neural style transfer against the provided content image. The content image m

Martynas Subonis 0 Nov 25, 2021
A Text Attention Network for Spatial Deformation Robust Scene Text Image Super-resolution (CVPR2022)

A Text Attention Network for Spatial Deformation Robust Scene Text Image Super-resolution (CVPR2022) https://arxiv.org/abs/2203.09388 Jianqi Ma, Zheto

MA Jianqi, shiki 104 Jan 05, 2023
A novel pipeline framework for multi-hop complex KGQA task. About the paper title: Improving Multi-hop Embedded Knowledge Graph Question Answering by Introducing Relational Chain Reasoning

Rce-KGQA A novel pipeline framework for multi-hop complex KGQA task. This framework mainly contains two modules, answering_filtering_module and relati

金伟强 -上海大学人工智能小渣渣~ 16 Nov 18, 2022
Pytorch implementation of AREL

Status: Archive (code is provided as-is, no updates expected) Agent-Temporal Attention for Reward Redistribution in Episodic Multi-Agent Reinforcement

8 Nov 25, 2022
Code for "NeuralRecon: Real-Time Coherent 3D Reconstruction from Monocular Video", CVPR 2021 oral

NeuralRecon: Real-Time Coherent 3D Reconstruction from Monocular Video Project Page | Paper NeuralRecon: Real-Time Coherent 3D Reconstruction from Mon

ZJU3DV 1.4k Dec 30, 2022
Implementation of the SUMO (Slim U-Net trained on MODA) model

SUMO - Slim U-Net trained on MODA Implementation of the SUMO (Slim U-Net trained on MODA) model as described in: TODO: add reference to paper once ava

6 Nov 19, 2022
The Empirical Investigation of Representation Learning for Imitation (EIRLI)

The Empirical Investigation of Representation Learning for Imitation (EIRLI)

Center for Human-Compatible AI 31 Nov 06, 2022
Algorithm to texture 3D reconstructions from multi-view stereo images

MVS-Texturing Welcome to our project that textures 3D reconstructions from images. This project focuses on 3D reconstructions generated using structur

Nils Moehrle 766 Jan 04, 2023