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Practical guides to AI, Python, Git, SQL, Web/API, SAP/ERP and mathematical models, with explanations, code examples, sources and limitations.

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Artificial intelligence

AI Precision and Recall Evaluation on Small Datasets

Learn how to effectively evaluate the precision and recall of AI models, especially when working with small question datasets. This guide covers the concepts, calculation methods, and practical considerations using scikit-learn.

ai / precision / recall / evaluation / small dataset / machine learning / scikit-learn / classification

Artificial intelligence

Configuring Hybrid Search with Vector and Text Fields in Azure AI Search

Step-by-step guide to creating an index, generating embeddings, and executing hybrid queries that combine full-text and vector search using Azure AI Search.

azure-ai-search / hybrid-search / vector-search / semantic-reranker / index-schema / embeddings

Artificial intelligence

What RAG changes - and what it does not

How retrieval connects a language model to documents, and why a citation is not a guarantee.

AI / RAG / Retrieval