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MUFAC (Machine Unlearning for Facial Age Classifier)
This repository provides a cleaned and resolution-aligned (128x128) version of the MUFAC benchmark dataset.
π Description
A multi-class age classification dataset featuring over 63,000 Asian facial images with annotations for age groups and personal identities.

- Preprocessed facial images (128Γ128 resolution)
- CSV files (
custom_train_dataset.csv
, etc.) for structured training/evaluation - Separation of identity-forgettable vs. retained images (
forget_images
,retain_images
) - Suitable for benchmarking machine unlearning algorithms, especially in task-agnostic setups
It is specifically intended for experiments where personal identities are selectively unlearned, without degrading model utility on the original task (e.g., age classification).
ποΈ Dataset Structure
MUFAC/
βββ forget_images/ # 1,431 images to be unlearned
βββ retain_images/ # 7,680 images to retain
βββ train_images_part1/ # 9,093 training images (part 1)
βββ train_images_part2/ # 18 training images (part 2)
βββ val_images/ # 1,464 validation images
βββ test_images/ # 1,408 test images
βββ fixed_test_dataset_negative/ # 9,319 identity-balanced test data (negative)
βββ fixed_test_dataset_positive/ # 9,319 identity-balanced test data (positive)
βββ fixed_val_dataset_negative/ # 9,462 identity-balanced val data (negative)
βββ fixed_val_dataset_positive/ # 9,424 identity-balanced val data (positive)
βββ custom_train_dataset.csv # CSV with image paths and labels
βββ custom_val_dataset.csv # Validation CSV
βββ custom_test_dataset.csv # Test CSV
- CSV files follow the format:
image_path
,age_group
,identity
,forget_flag
, etc. - All image paths are relative and usable with
datasets.Image()
orPIL
.
πΉ How to Use
Method 1: Git Clone (Recommended)
git lfs install
git clone https://huggingface.co/datasets/Dasool/MUFAC
cd MUFAC
Method 2: Using Hugging Face Hub API
from huggingface_hub import snapshot_download
# Download entire dataset
local_dir = snapshot_download("Dasool/MUFAC", repo_type="dataset")
print(f"Dataset downloaded to: {local_dir}")
Method 3: Load CSV and Images
import pandas as pd
import os
from PIL import Image
# Load CSV
df = pd.read_csv("MUFAC/custom_train_dataset.csv")
print(f"Dataset size: {len(df)} samples")
print(df.head())
# Load sample image
sample_row = df.iloc[0]
img_path = os.path.join("MUFAC", sample_row["image_path"])
img = Image.open(img_path)
img.show()
π Citation
This dataset is part of the benchmark suite introduced in the following paper:
@misc{choi2023machine,
title={Towards Machine Unlearning Benchmarks: Forgetting the Personal Identities in Facial Recognition Systems},
author={Dasol Choi and Dongbin Na},
year={2023},
eprint={2311.02240},
archivePrefix={arXiv},
primaryClass={cs.CV}
}
π Code for Experiments:: https://github.com/ndb796/MachineUnlearning
π§ Contact: [email protected]
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