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Nikita Kozodoi

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Posts

AWS Blog2025

Detect Hallucinations for RAG-Based Systems

RAG systems still answer confidently when the retrieved context does not support the answer. We add a detection layer that flags those cases, comparing methods such as LLM-as-judge and semantic similarity on accuracy against cost.

GenAILLMsRAG
Self-published2020

Algorithmic Fairness in R

This post introduces the fairness R package for computing and visualizing algorithmic fairness metrics. We walk through demographic parity, proportional parity, and equalized odds, and show how the three diverge on the very same classifier.

Responsible AIClassical MLEvaluation

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