云搜索服务_Cloud Search Service_vectordb_css_向量数据库_分析

云搜索服务CSS

售前专业咨询

基于华为云自研的向量搜索引擎，针对大规模的向量检索场景提供了业界性能领先的向量数据库服务。

云原生高可用

全球首款在云上深耕多年、持续打磨的千亿级向量数据库，SLA达99.95%

极致性价比

通过图、索引等多种算法的组合，提供高性能、高精度、低成本全场景解决方案

易用可扩展

兼容开源ES语法与大模型生态、开箱即用、免运维，支持水平扩展、动态扩容

安全合规

打造中立、可信、责任共担、安全的云服务

多种产品规格，满足您对成本、性能及技术创新的诉求

经济集群
性能集群

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为什么选择CSS 向量数据库

华为向量检索性能第一

高性能：ann-benchmarks打榜第一。
云原生：云上深耕超3年
高精度：自研向量引擎、支持Flat、PQ、IVF-PQ、Graph、IVF-Graph等索引类型，并采用创新的裁边、联边构图方式；支持文本向量混合索引查询。
高性价比：支持存算分离，冷数据存储成本下降80% ; 基于PQ量化算法，内存相比ES算法降低70%。

语义检索效果领先

大规模相关性数据构建：高质量相关性标注数据，包含正负例假正例去除，去除相关性不是特别高的数据难负例构建，和query相关，但不是正确答案假负例去除，未在数据集中被标注的，但是与query相关的文档。
引入动态难负例训练：采用动态难负样本优化召回模型，进一步推升模型效果。

应用场景

向量检索

向量检索的应用场景非常广泛，典型如：语义搜索、图像搜索、商品推荐、智能客服、企业知识库搜索等等。

优势

大模型的“黄金搭档”

为盘古大模型提供缓存能力，同时提供开箱即用的多模态Embedding能力。

高效可靠

华为自研向量检索引擎，提供极致的搜索性能以及分布式容灾能力。

索引丰富

支持多种索引算法及相似度度量方式，满足各类应用场景及需求。

0学习成本

完全兼容开源ES语法与生态。

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为什么选择CSS 向量数据库

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