metadata
language:
- en
tags:
- feature-extraction
- pubmed
- sentence-similarity
datasets:
- biu-nlp/abstract-sim-pubmed
A model for mapping abstract sentence descriptions to sentences that fit the descriptions. Trained on Pubmed sentences. Use load_finetuned_model to load the query and sentence encoder, and encode_batch() to encode a sentence with the model.
from transformers import AutoTokenizer, AutoModel
import torch
def load_finetuned_model():
sentence_encoder = AutoModel.from_pretrained("biu-nlp/abstract-sim-sentence-pubmed")
query_encoder = AutoModel.from_pretrained("biu-nlp/abstract-sim-query-pubmed")
tokenizer = AutoTokenizer.from_pretrained("biu-nlp/abstract-sim-sentence-pubmed")
return tokenizer, query_encoder, sentence_encoder
def encode_batch(model, tokenizer, sentences, device):
input_ids = tokenizer(sentences, padding=True, max_length=512, truncation=True, return_tensors="pt",
add_special_tokens=True).to(device)
features = model(**input_ids)[0]
features = torch.sum(features[:,1:,:] * input_ids["attention_mask"][:,1:].unsqueeze(-1), dim=1) / torch.clamp(torch.sum(input_ids["attention_mask"][:,1:], dim=1, keepdims=True), min=1e-9)
return features