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Upload stri.py
Browse files- pages/stri.py +74 -0
pages/stri.py
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import streamlit as st
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import torch
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import numpy as np
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import pandas as pd
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from PIL import Image
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from transformers import AutoTokenizer, AutoModel
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import re
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import pickle
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import requests
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from io import BytesIO
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st.title("Книжные рекомендации")
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# Загрузка модели и токенизатора
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model_name = "cointegrated/rubert-tiny2"
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tokenizer = AutoTokenizer.from_pretrained(model_name)
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model = AutoModel.from_pretrained(model_name, output_hidden_states=True)
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# Загрузка датасета и аннотаций к книгам
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books = pd.read_csv('all+++.csv')
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books['author'].fillna('other', inplace=True)
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annot = books['annotation']
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# Получение эмбеддингов аннотаций каждой книги в датасете
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length = 256
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# Определение запроса пользователя
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query = st.text_input("Введите запрос")
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num_books_per_page = st.selectbox("Количество книг на странице:", [3, 5, 10], index=0)
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col1, col2 = st.columns(2)
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generate_button = col1.button('Сгенерировать')
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if generate_button:
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with open("book_embeddings256xxx.pkl", "rb") as f:
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book_embeddings = pickle.load(f)
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query_tokens = tokenizer.encode_plus(
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query,
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add_special_tokens=True,
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max_length=length, # Ограничение на максимальную длину входной последовательности
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pad_to_max_length=True, # Дополним последовательность нулями до максимальной длины
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return_tensors='pt' # Вернём тензоры PyTorch
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)
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with torch.no_grad():
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query_outputs = model(**query_tokens)
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query_hidden_states = query_outputs.hidden_states[-1][:, 0, :]
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query_hidden_states = torch.nn.functional.normalize(query_hidden_states)
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# Вычисление косинусного расстояния между эмбеддингом запроса и каждой аннотацией
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cosine_similarities = torch.nn.functional.cosine_similarity(
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query_hidden_states.squeeze(0),
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torch.stack(book_embeddings)
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)
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cosine_similarities = cosine_similarities.numpy()
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indices = np.argsort(cosine_similarities)[::-1] # Сортировка по убыванию
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for i in indices[:num_books_per_page]:
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cols = st.columns(2) # Создание двух столбцов для размещения информации и изображения
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cols[1].write("## " + books['title'][i])
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cols[1].markdown("**Автор:** " + books['author'][i])
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cols[1].markdown("**Аннотация:** " + books['annotation'][i])
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image_url = books['image_url'][i]
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response = requests.get(image_url)
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image = Image.open(BytesIO(response.content))
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cols[0].image(image)
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cols[0].write(cosine_similarities[i])
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cols[1].write("---")
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