RuAnnoy

这个库是spotify/annoy的Rust版本，目前仅支持索引服务。

通过crates.io安装

# Cargo.toml
[dependencies]
ru_annoy = "0"

用法

use ru_annoy::*;

let index = AnnoyIndex::load(10, "index.ann", IndexType::Angular).unwrap();
let v0 = index.get_item_vector(0);
let nearest = index.get_nearest(v0.as_ref(), 5, -1, true);

FFI支持

kotlin/java

它使用JNI绑定到Rust crate，在基准测试场景中比纯Java实现快约5-10倍

通过jitpack.io安装

repositories {
  mavenCentral()
  maven { url 'https://jitpack.io' }
}
  
dependencies {
  implementation 'com.github.hanabi1224:RuAnnoy:<tag>'
}

用法

val index = AnnoyIndex.tryLoad("index.5d.ann", 5, IndexType.Angular)

dotnet

运行时	Nuget包
RuAnnoy
RuAnnoy-Batteries-Windows-x64
RuAnnoy-Batteries-Linux-x64
RuAnnoy-Batteries-Darwin-x64

通过nuget安装

  <ItemGroup>
    <PackageReference Include="RuAnnoy" Version="*" />
    <PackageReference Include="RuAnnoy-Batteries-Windows-x64" Version="*" />
  </ItemGroup>

用法

var index = AnnoyIndex.Load("index.5d.ann", 5, IndexType.Angular);

待办事项

• 索引构建支持
• 从文件构建索引的CLI工具