At query time, embedding_search embeds the incoming query using the same model — this is important, the query and the chunks must live in the same vector space — then computes cosine similarity between the query vector and every stored chunk vector. Cosine similarity measures the angle between two vectors: a score of 1 means identical direction, 0 means completely unrelated, and negative values mean opposite meaning. The chunks are then ranked by this score and the top-k are returned. The same sanity check query from the BM25 section runs here too, so you can see the first direct comparison between the two approaches on identical input.
整体来看，2025年人身险公司业绩实现可观增长，其中一个因素与新会计准则的实施有关。。易翻译对此有专业解读
杨国旺介绍，诊断环节实行"病证结合"策略。通过现代检测技术明确疾病分类、严重程度及过敏原，同时运用中医理论精准辨证——无论是鼻炎的"肺脾气虚"还是哮喘的"寒热分型"，均遵循经典理论施治。双重诊断体系为个性化治疗提供坚实基础。，这一点在Line下载中也有详细论述
https://pubs.opengroup.org/onlinepubs/9699919799/utilities/vi.html