added app

app.py

@@ -0,0 +1,94 @@
+import streamlit as st
+import transformers
+import torch
+from typing import List, Dict
+
+
+model_name = st.selectbox(
+    'Выберите модель',
+    ('tinkoff-ai/crossencoder-tiny', 'tinkoff-ai/crossencoder-medium', 'tinkoff-ai/crossencoder-large')
+)
+
+tokenizer = transformers.AutoTokenizer.from_pretrained(model_name)
+model = transformers.AutoModelForSequenceClassification.from_pretrained(model_name)
+if torch.cuda.is_available():
+    model = model.cuda()
+
+context_3 = st.text_input('Пользователь 1', 'Привет')
+context_2 = st.text_input('Пользователь 1', 'Здарова')
+context_1 = st.text_input('Пользователь 1', 'Как жизнь?')
+response = st.text_input('Пользователь 1', 'Норм')
+sample = {
+    'context_3': context_3,
+    'context_2': context_2,
+    'context_1': context_1,
+    'response': response
+}
+
+
+SEP_TOKEN = '[SEP]'
+CLS_TOKEN = '[CLS]'
+RESPONSE_TOKEN = '[RESPONSE_TOKEN]'
+MAX_SEQ_LENGTH = 128
+sorted_dialog_columns = ['context_3', 'context_2', 'context_1', 'response']
+
+
+def tokenize_dialog_data(
+    tokenizer: transformers.PreTrainedTokenizer,
+    sample: Dict,
+    max_seq_length: int,
+    sorted_dialog_columns: List,
+):
+    """
+    Tokenize both contexts and response of dialog data separately
+    """
+    len_message_history = len(sorted_dialog_columns)
+    max_seq_length = min(max_seq_length, tokenizer.model_max_length)
+    max_each_message_length = max_seq_length // len_message_history - 1
+    messages = [sample[k] for k in sorted_dialog_columns]
+    result = {model_input_name: [] for model_input_name in tokenizer.model_input_names}
+    messages = [str(message) if message is not None else '' for message in messages]
+    tokens = tokenizer(
+        messages, padding=False, max_length=max_each_message_length, truncation=True, add_special_tokens=False
+    )
+    for model_input_name in tokens.keys():
+        result[model_input_name].extend(tokens[model_input_name])
+    return result
+
+
+def merge_dialog_data(
+    tokenizer: transformers.PreTrainedTokenizer, 
+    sample: Dict
+):
+    cls_token = tokenizer(CLS_TOKEN, add_special_tokens=False)
+    sep_token = tokenizer(SEP_TOKEN, add_special_tokens=False)
+    response_token = tokenizer(RESPONSE_TOKEN, add_special_tokens=False)
+    model_input_names = tokenizer.model_input_names
+    result = {}
+    for model_input_name in model_input_names:
+        tokens = []
+        tokens.extend(cls_token[model_input_name])
+        for i, message in enumerate(sample[model_input_name]):
+            tokens.extend(message)
+            if i < len(sample[model_input_name]) - 2:
+                tokens.extend(sep_token[model_input_name])
+            elif i == len(sample[model_input_name]) - 2:
+                tokens.extend(response_token[model_input_name])
+        result[model_input_name] = torch.tensor([tokens])
+        if torch.cuda.is_available():
+           result[model_input_name] = result[model_input_name].cuda() 
+    return result
+
+tokenized_dialog = tokenize_dialog_data(tokenizer, sample, MAX_SEQ_LENGTH, sorted_dialog_columns)
+tokens = merge_dialog_data(tokenizer, tokenized_dialog)
+logits = model(**tokens).logits
+probas = torch.sigmoid(logits)[0].cpu().detach().numpy()
+
+st.metric(
+    label='Вероятность того, что последний ответ релевантный',
+    value=probas[0]
+)
+st.metric(
+    label='Вероятность того, что последний ответ специфичный',
+    value=probas[0]
+)

requirements.txt

@@ -0,0 +1,3 @@
+streamlit
+transformers
+torch