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pip install -U sentence-transformers1from sentence_transformers import SentenceTransformer
2sentences = ["This is an example sentence", "Each sentence is converted"]
3
4model = SentenceTransformer('{MODEL_NAME}')
5embeddings = model.encode(sentences)
6print(embeddings)1from transformers import AutoTokenizer, AutoModel
2import torch
3
4
5def cls_pooling(model_output, attention_mask):
6 return model_output[0][:,0]
7
8
9# Sentences we want sentence embeddings for
10sentences = ['This is an example sentence', 'Each sentence is converted']
11
12# Load model from HuggingFace Hub
13tokenizer = AutoTokenizer.from_pretrained('{MODEL_NAME}')
14model = AutoModel.from_pretrained('{MODEL_NAME}')
15
16# Tokenize sentences
17encoded_input = tokenizer(sentences, padding=True, truncation=True, return_tensors='pt')
18
19# Compute token embeddings
20with torch.no_grad():
21 model_output = model(**encoded_input)
22
23# Perform pooling. In this case, cls pooling.
24sentence_embeddings = cls_pooling(model_output, encoded_input['attention_mask'])
25
26print("Sentence embeddings:")
27print(sentence_embeddings)sentence_transformers.datasets.NoDuplicatesDataLoader.NoDuplicatesDataLoader of length 112 with parameters:{'batch_size': 8}sentence_transformers.losses.MultipleNegativesRankingLoss.MultipleNegativesRankingLoss with parameters:{'scale': 20.0, 'similarity_fct': 'cos_sim'}{
"epochs": 4,
"evaluation_steps": 56,
"evaluator": "sentence_transformers.evaluation.TripletEvaluator.TripletEvaluator",
"max_grad_norm": 1,
"optimizer_class": "<class 'torch.optim.adamw.AdamW'>",
"optimizer_params": {
"lr": 2e-05
},
"scheduler": "WarmupLinear",
"steps_per_epoch": null,
"warmup_steps": 360,
"weight_decay": 0.01
}SentenceTransformer(
(0): Transformer({'max_seq_length': 256, 'do_lower_case': False}) with Transformer model: MPNetModel
(1): Pooling({'word_embedding_dimension': 768, 'pooling_mode_cls_token': True, 'pooling_mode_mean_tokens': False, 'pooling_mode_max_tokens': False, 'pooling_mode_mean_sqrt_len_tokens': False})
)