Step 10

Reranking / Fusion

Reranking and fusion techniques improve retrieval quality by reordering or combining results from different retrieval methods.

What It Does

Reranking takes initial search results and reorders them using more sophisticated (and often more computationally expensive) models to improve relevance. Fusion combines results from multiple retrieval methods (like keyword search and semantic search) to leverage the strengths of each approach.

Why It Matters

These techniques significantly improve retrieval quality by addressing the limitations of individual retrieval methods. They help balance precision and recall, combining the strengths of different approaches to deliver more relevant results to the LLM.

Common Challenges

  • Balancing the computational cost of reranking with retrieval speed
  • Determining optimal weights when combining different retrieval signals
  • Avoiding over-optimization for specific query types
  • Handling cases where different retrieval methods produce contradictory rankings
  • Measuring and optimizing the impact of reranking on end-to-end performance
  • Managing the increased complexity of multiple ranking stages

Interactive Demo

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Introduction to Machine Learning

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Machine learning is a subset of artificial intelligence...

rerankingFusion.rrfScore: 0.033

Natural Language Processing

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NLP is a field of AI that gives computers the ability to understand text...

rerankingFusion.rrfScore: 0.032

Deep Learning Fundamentals

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Deep learning is a subset of machine learning that uses neural networks...

rerankingFusion.rrfScore: 0.032

Reinforcement Learning

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Reinforcement learning is training algorithms to make sequences of decisions...

rerankingFusion.rrfScore: 0.031

Computer Vision Applications

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Computer vision enables machines to interpret and make decisions based on visual data...

rerankingFusion.rrfScore: 0.031

Skip the Complexity

Building a robust Reranking / Fusion solution is challenging. Respeak's Enterprise RAG Platform handles this complexity for you.