Get Diverse Results and Comprehensive Summaries with Vectara’s MMR Reranker

Vectara has released a new "reranking" capability that aims to increase the diversity of search results near the top of the result list. This is achieved through the use of "Maximum Marginal Relevance" (MMR), which seeks to provide more diverse results when they are still relevant, helping with ambiguous queries and exploring new ideas. By using MMR in Vectara, users can get a broader picture of information, leading to higher user satisfaction as they can go as wide or deep as they like. The feature is available via the API or UI, allowing users to set a reranker ID and diversity factor, and values around 0.5 tend to be a good starting point.

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