KOV

The entry file is KOV.py

Kov Algorithm: Summary and Implementation

Objective

The NGCG algorithm optimizes adversarial suffixes by balancing two objectives:

• Negative log-likelihood (NLL) to induce harmful behavior.
• Log-perplexity to maintain natural language coherence.

Loss Function

The loss function is defined as:

$$L(x_{1:n}) = - \log p(x^*_{n+1:H} \mid x_{1:n}) + \lambda \left( -\frac{1}{n-1} \sum_{i=2}^{n} \log p(x_i \mid x_{1:i-1}) \right)$$