all MiniLM L6 v2
简介
核心亮点
- 极小模型体积,支持端侧高效部署
- 语义检索速度快,推理延迟极低
- 核心用于 RAG 架构的向量化预处理
- Apache-2.0 协议,商业使用无压力
使用方法
# 安装 Hugging Face transformers
pip install transformers torch
# 使用 transformers 加载模型
from transformers import AutoModel, AutoTokenizer
model = AutoModel.from_pretrained("Xenova/all-MiniLM-L6-v2")
tokenizer = AutoTokenizer.from_pretrained("Xenova/all-MiniLM-L6-v2")
Hugging Face 下载
我们推荐使用命令行或者 Hugging Face Hub SDK 来进行模型的下载。
操作指引:在下载前,请先通过如下命令安装 huggingface_hub:
pip install -U huggingface_hub
命令行下载
下载完整模型库
huggingface-cli download Xenova/all-MiniLM-L6-v2
下载单个文件到指定本地文件夹(以下载 config.json 到当前路径下 ./dir 目录为例)
huggingface-cli download Xenova/all-MiniLM-L6-v2 config.json --local-dir ./dir
SDK 下载
# 模型下载
from huggingface_hub import snapshot_download
model_dir = snapshot_download('Xenova/all-MiniLM-L6-v2')
Git 下载
请确保 lfs 已经被正确安装
git lfs install
git clone https://huggingface.co/Xenova/all-MiniLM-L6-v2
如果您希望跳过 lfs 大文件下载,可以使用如下命令
GIT_LFS_SKIP_SMUDGE=1 git clone https://huggingface.co/Xenova/all-MiniLM-L6-v2
模型文件托管在 Hugging Face Hub,使用 HF CLI / SDK / Git 直接下载,不经过本站。
PyTorch / Transformers 使用
安装 Transformers
pip install -U transformers torch
模型加载和推理
from transformers import AutoModelForCausalLM, AutoTokenizer
model = AutoModelForCausalLM.from_pretrained('Xenova/all-MiniLM-L6-v2')
tokenizer = AutoTokenizer.from_pretrained('Xenova/all-MiniLM-L6-v2')
模型下载
我们推荐使用命令行或者 ModelScope SDK 来进行模型的下载。
操作指引:在下载前,请先通过如下命令安装 ModelScope:
pip install modelscope
命令行下载
下载完整模型库
modelscope download --model Xenova/all-MiniLM-L6-v2
下载单个文件到指定本地文件夹(以下载 README.md 到当前路径下 dir 目录为例)
modelscope download --model Xenova/all-MiniLM-L6-v2 README.md --local_dir ./dir
SDK 下载
# 模型下载
from modelscope import snapshot_download
model_dir = snapshot_download('Xenova/all-MiniLM-L6-v2')
Git 下载
请确保 lfs 已经被正确安装
git lfs install
git clone https://www.modelscope.cn/Xenova/all-MiniLM-L6-v2.git
如果您希望跳过 lfs 大文件下载,可以使用如下命令
GIT_LFS_SKIP_SMUDGE=1 git clone https://www.modelscope.cn/Xenova/all-MiniLM-L6-v2.git
ModelScope 模型页直接下载模型文件;无需将模型文件放在本站服务器。
Notebook 快速开发
下载并安装 ModelScope library
pip install "modelscope[audio,cv,nlp,multi-modal,science]" -f https://modelscope.oss-cn-beijing.aliyuncs.com/releases/repo.html
模型加载和推理
from modelscope.pipelines import pipeline
from modelscope.utils.constant import Tasks
p = pipeline('text-generation', 'Xenova/all-MiniLM-L6-v2')
完整文档
---
base_model: sentence-transformers/all-MiniLM-L6-v2
library_name: transformers.js
license: apache-2.0
---
https://huggingface.co/sentence-transformers/all-MiniLM-L6-v2 with ONNX weights to be compatible with Transformers.js.
Usage (Transformers.js)
If you haven't already, you can install the Transformers.js JavaScript library from NPM using:
npm i @huggingface/transformersYou can then use the model to compute embeddings like this:
import { pipeline } from '@huggingface/transformers';
// Create a feature-extraction pipeline
const extractor = await pipeline('feature-extraction', 'Xenova/all-MiniLM-L6-v2');
// Compute sentence embeddings
const sentences = ['This is an example sentence', 'Each sentence is converted'];
const output = await extractor(sentences, { pooling: 'mean', normalize: true });
console.log(output);
// Tensor {
// dims: [ 2, 384 ],
// type: 'float32',
// data: Float32Array(768) [ 0.04592696577310562, 0.07328180968761444, ... ],
// size: 768
// }
You can convert this Tensor to a nested JavaScript array using .tolist():
console.log(output.tolist());
// [
// [ 0.04592696577310562, 0.07328180968761444, 0.05400655046105385, ... ],
// [ 0.08188057690858841, 0.10760223120450974, -0.013241755776107311, ... ]
// ]Note: Having a separate repo for ONNX weights is intended to be a temporary solution until WebML gains more traction. If you would like to make your models web-ready, we recommend converting to ONNX using 🤗 Optimum and structuring your repo like this one (with ONNX weights located in a subfolder named onnx).