Scenarios where composition techniques might not be directly applicable:
There are scenarios where composition techniques might not be directly suitable:
1. Non-Additive Noise: If differential privacy mechanisms introduce non-additive noise (e.g., multiplicative noise), traditional composition techniques designed for additive noise may not apply directly.
2. Complex Correlations: When correlations between queries are intricate, it might be challenging to determine how their combined effects impact privacy. Traditional composition methods might not capture such complexities.
3. Advanced Mechanisms: For advanced mechanisms like secure multi-party computation or homomorphic encryption, composition techniques might require specialized adaptations to account for unique privacy and computational aspects.