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import pandas as pd
import torch
from transformers import AutoTokenizer, AutoModel, set_seed
from tqdm import tqdm
from utils import clean_text
from model import MimicTransformer
set_seed(42)
def read_model(model, path):
model.load_state_dict(torch.load(path, map_location=torch.device('cuda')), strict=False)
return model
model_path = 'checkpoint_0_9113.bin'
mimic = MimicTransformer(cutoff=512)
mimic = read_model(model=mimic, path=model_path)
mimic.eval()
mimic.cuda()
tokenizer = mimic.tokenizer
summaries = pd.read_csv('all_summaries_backup.csv')['SUMMARIES']
def mean_pooling(model_output, attention_mask):
token_embeddings = model_output[0] #First element of model_output contains all token embeddings
input_mask_expanded = attention_mask.unsqueeze(-1).expand(token_embeddings.size()).float()
return torch.sum(token_embeddings * input_mask_expanded, 1) / torch.clamp(input_mask_expanded.sum(1), min=1e-9)
def get_model_outputs(text):
inputs = tokenizer(text, return_tensors='pt', padding='max_length', max_length=512, truncation=True).to('cuda')
outputs = mimic(input_ids=inputs.input_ids, attention_mask=inputs.attention_mask, drg_labels=None)
# pooled = mean_pooling(outputs[0][0], inputs['attention_mask'])
pooled = outputs[0][0]
normalized = pooled/pooled.norm(dim=1)[:,None]
return normalized
return_tensors = torch.zeros(size=(10000, 738))
non_defunct_summaries = []
for i, summary in tqdm(enumerate(summaries[:50000])):
cleaned = clean_text(summary)
if len(non_defunct_summaries) == 10000:
break
if len(cleaned) > 100:
non_defunct_summaries.append(cleaned)
for i, summary in tqdm(enumerate(non_defunct_summaries)):
res = get_model_outputs(text=summary)
return_tensors[i, :] = res.detach().cpu()
# sentence_embeddings = mean_pooling(model_output, encoded_input['attention_mask'])
# sentence_embeddings = sentence_embeddings/sentence_embeddings.norm(dim=1)[:,None]
pd.DataFrame(data={'SUMMARIES':non_defunct_summaries}).to_csv('all_summaries.csv', index=False)
torch.save(return_tensors, f='discharge_embeddings.pt')
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