Package io.milvus.v2.service.vector.request.ranker

Class WeightedRanker

  • public class WeightedRanker
extends CreateCollectionReq.Function
    The Average Weighted Scoring reranking strategy, which prioritizes vectors based on relevance, averaging their significance. Read the doc for more info: https://milvus.io/docs/weighted-ranker.md

    Note: In v2.6, the Function and Rerank have been unified to support more rerank types: decay and model ranker https://milvus.io/docs/decay-ranker-overview.md https://milvus.io/docs/model-ranker-overview.md So we have to inherit the BaseRanker from Function, this change will lead to uncomfortable issues with RRFRanker/WeightedRanker in some users client code. We will mention it in release note. In old client code, to declare a WeightedRanker: WeightedRanker ranker = new WeightedRanker(Arrays.asList(0.2f, 0.5f, 0.6f)) After this change, the client code should be changed accordingly: WeightedRanker ranker = WeightedRanker.builder().weights(Arrays.asList(0.2f, 0.5f, 0.6f)).build()

    You also can declare a weighter ranker by Function CreateCollectionReq.Function rr = CreateCollectionReq.Function.builder() .functionType(FunctionType.RERANK) .param("reranker", "weighted") .param("weights", "[0.4, 0.6]") .build();