Model reference · open weights

KoSimCSE-roberta

Available as managed deployment Embeddings BM-K · community Embeddings 1 variants 7k dl/mo

KoSimCSE-roberta is an open-weight embedding model from BM-K. AxForge deploys and operates it for you on dedicated EU-owned hardware — with the licence handled where one is required.

Available as managed deployment — configured and operated for you on dedicated EU hardware, quoted per deployment.

What it is

MakerBM-K
TypeEmbedding models
TaskEmbeddings
Parameters (lead)111M
Context514 tokens
Runs withtransformers
Released2022-04-05
Popularity7k downloads / month
LicenceUnknown

About

What KoSimCSE-roberta is

https://github.com/BM-K/Sentence-Embedding-is-all-you-need

Korean-Sentence-Embedding

🍭 Korean sentence embedding repository. You can download the pre-trained models and inference right away, also it provides environments where individuals can train models.

Quick tour

import torch
from transformers import AutoModel, AutoTokenizer

def cal_score(a, b):
    if len(a.shape) == 1: a = a.unsqueeze(0)
    if len(b.shape) == 1: b = b.unsqueeze(0)

    a_norm = a / a.norm(dim=1)[:, None]
    b_norm = b / b.norm(dim=1)[:, None]
    return torch.mm(a_norm, b_norm.transpose(0, 1)) * 100

model = AutoModel.from_pretrained('BM-K/KoSimCSE-roberta')
tokenizer = AutoTokenizer.from_pretrained('BM-K/KoSimCSE-roberta')

sentences = ['치타가 들판을 가로 질러 먹이를 쫓는다.',
             '치타 한 마리가 먹이 뒤에서 달리고 있다.',
             '원숭이 한 마리가 드럼을 연주한다.']

inputs = tokenizer(sentences, padding=True, truncation=True, return_tensors="pt")
embeddings, _ = model(**inputs, return_dict=False)

score01 = cal_score(embeddings[0][0], embeddings[1][0])
score02 = cal_score(embeddings[0][0], embeddings[2][0])

Performance

  • Semantic Textual Similarity test set results
ModelAVGCosine PearsonCosine SpearmanEuclidean PearsonEuclidean SpearmanManhattan PearsonManhattan SpearmanDot PearsonDot Spearman
KoSBERT†SKT77.4078.8178.4777.6877.7877.7177.8375.7575.22
KoSBERT80.3982.1382.2580.6780.7580.6980.7877.9677.90
KoSRoBERTa81.6481.2082.2081.7982.3481.5982.2080.6281.25
KoSentenceBART77.1479.7178.7478.4278.0278.4078.0074.2472.15
KoSentenceT577.8380.8779.7480.2479.3680.1979.2772.8170.17
KoSimCSE-BERT†SKT81.3282.1282.5681.8481.6381.9981.7479.5579.19
KoSimCSE-BERT83.3783.2283.5883.2483.6083.1583.5483.1383.49
KoSimCSE-RoBERTa83.6583.6083.7783.5483.7683.5583.7783.5583.64
KoSimCSE-BERT-multitask85.7185.2986.0285.6386.0185.5785.9785.2685.93
KoSimCSE-RoBERTa-multitask85.7785.0886.1285.8486.1285.8386.1285.0385.99

From the published model card. Full card on the HuggingFace links in the sidebar.

Using it via the API

Call it like any OpenAI endpoint

Once AxForge deploys kosimcse-roberta for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (kosimcse-roberta below is illustrative; you get the exact model name on deployment.)

$ curl -sS https://api.axforge.ai/v1/embeddings \
  -H "Authorization: Bearer $AXFORGE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"kosimcse-roberta","input":"text to embed"}'

Create an account — your API key is available in the console. 5M tokens/month currently included with every new account at launch.

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