
Synthetic Data Generation
Project Title: Synthetic Data Generation
Objective:
To create artificial data that mimics real-world data distributions while preserving privacy, enabling data augmentation, or enhancing model training when real data is limited or sensitive.
Key Components:
Understanding the Use Case:
Determine the purpose of synthetic data: privacy protection, data augmentation, imbalanced class handling, or simulation of rare events.
Identify the type of data to generate: tabular, image, text, or time series.
Data Analysis:
Analyze the real dataset to understand feature distributions, correlations, and class imbalances.
Perform preprocessing like encoding, scaling, and missing value treatment.
Generation Techniques:
Statistical Methods: Sampling from estimated distributions (e.g., Gaussian, multinomial).
Machine Learning Models:
SMOTE for oversampling minority classes.
GANs (Generative Adversarial Networks) for realistic image or text generation.
VAEs (Variational Autoencoders) for continuous data generation.
CTGAN / TVAE for tabular data (via SDV or other libraries).
Evaluation of Synthetic Data:
Statistical Similarity: Compare distribution of real vs. synthetic data.
Model Utility: Train models on synthetic data and evaluate on real data.
Privacy Checks: Ensure synthetic data does not leak sensitive information.
Packaging & Reuse:
Create reusable scripts or modules for generating and evaluating synthetic data.
Use Docker or virtual environments for reproducibility.
Outcome:
A synthetic dataset that maintains utility and realism without compromising privacy, often accompanied by a tool or API for automated generation.