RuAnnoy

This library is a rust port of spotify/annoy , currently only index serving is supported.

Install via crates.io

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

Usage

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 support

kotlin/java

It uses JNI bindings to rust crate and is ~5-10x faster than pure java implementation in benchmark scenario

Install via jitpack.io

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

Usage

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

dotnet

Runtimes	Nuget package
RuAnnoy
RuAnnoy-Batteries-Windows-x64
RuAnnoy-Batteries-Linux-x64
RuAnnoy-Batteries-Darwin-x64

Install via nuget

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

Usage

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

TODO

• Index building support
• CLI tool to build index from file