【AIGC X UML 落地】通过多智能体实现自然语言绘制UML图

import numpy as np
import torch
from torch import nn
from transformers import GPT2Model, GPT2Tokenizer
 
# 定义UML图生成智能体
class UMLGenAgent(nn.Module):
    def __init__(self, model_name):
        super(UMLGenAgent, self�).__init__()
        self.tokenizer = GPT2Tokenizer.from_pretrained(model_name)
        self.model = GPT2Model.from_pretrained(model_name)
 
    def forward(self, input_ids, attention_mask):
        outputs = self.model(input_ids, attention_mask=attention_mask)
        return outputs.last_hidden_state
 
# 定义环境类
class UMLEnvironment:
    def __init__(self, agent_num):
        self.agents = [UMLGenAgent('gpt2') for _ in range(agent_num)]
 
    def step(self, actions):
        # 假设环境有一个全局的GPT-2模型，这里直接调用模型生成UML图
        batch_input_ids = torch.stack([self.tokenizer.encode(act, return_tensors='pt') for act in actions])
        batch_attention_mask = batch_input_ids.ne(0).float()
        last_hidden_states = torch.stack([agent(batch_input_ids, batch_attention_mask) for agent in self.agents])
        return last_hidden_states  # 这里返回的是每个agent的最后隐藏状态
 
# 模拟环境中多智能体并行执行动作
env = UMLEnvironment(agent_num=4)
actions = ['class A:', 'class B:', 'class C:', 'class D:']
last_hidden_states = env.step(actions)
 
# 输出每个智能体的最后隐藏状态
print(last_hidden_states)

这个代码示例展示了如何定义一个环境类和一个UML图生成的智能体类，并在环境类中模拟多个智能体并行执行动作（即输入自然语言指令）并获取其隐藏状态输出。这个过程是AIGC系统中的一个关键步骤，它允许多个智能体协作生成复杂的输出结果。