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Yumenohoshi
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Upload app.py
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app.py
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# ウェブUIの起動
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import os
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import itertools
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import torch
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from transformers import AutoTokenizer
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import ctranslate2
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import gradio as gr
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device = "cuda" if torch.cuda.is_available() else "cpu"
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generator = ctranslate2.Generator("./FixedStar-BETA-7b-ct2", device=device)
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tokenizer = AutoTokenizer.from_pretrained(
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"Yumenohoshi/Fixedstar-BETA", use_fast=True)
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def inference_func(prompt, max_length=128, sampling_temperature=0.7):
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tokens = tokenizer.convert_ids_to_tokens(
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tokenizer.encode(prompt, add_special_tokens=False)
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)
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results = generator.generate_batch(
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[tokens],
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max_length=max_length,
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sampling_topk=20,
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sampling_temperature=sampling_temperature,
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include_prompt_in_result=False,
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)
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output = tokenizer.decode(results[0].sequences_ids[0])
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return output
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def make_prompt(message, chat_history, max_context_size: int = 10):
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contexts = chat_history + [[message, ""]]
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contexts = list(itertools.chain.from_iterable(contexts))
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if max_context_size > 0:
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context_size = max_context_size - 1
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else:
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context_size = 100000
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contexts = contexts[-context_size:]
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prompt = []
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for idx, context in enumerate(reversed(contexts)):
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if idx % 2 == 0:
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prompt = [f"ASSISTANT: {context}"] + prompt
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else:
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prompt = [f"USER: {context}"] + prompt
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prompt = "\n".join(prompt)
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return prompt
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def interact_func(message, chat_history, max_context_size, max_length, sampling_temperature):
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prompt = make_prompt(message, chat_history, max_context_size)
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print(f"prompt: {prompt}")
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generated = inference_func(prompt, max_length, sampling_temperature)
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print(f"generated: {generated}")
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chat_history.append((message, generated))
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return "", chat_history
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with gr.Blocks(theme="monochrome") as demo:
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with gr.Accordion("Configs", open=False):
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# max_context_size = the number of turns * 2
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max_context_size = gr.Number(value=20, label="記憶する会話ターン数", precision=0)
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max_length = gr.Number(value=128, label="最大文字数", precision=0)
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sampling_temperature = gr.Slider(0.0, 2.0, value=0.7, step=0.1, label="創造性")
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chatbot = gr.Chatbot()
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msg = gr.Textbox()
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clear = gr.Button("消す")
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msg.submit(
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interact_func,
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[msg, chatbot, max_context_size, max_length, sampling_temperature],
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[msg, chatbot],
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)
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clear.click(lambda: None, None, chatbot, queue=False)
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if __name__ == "__main__":
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demo.launch(debug=True, share=True)
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