在本篇文章中,我们将综合前面文章中所有知识,创建一个端到端的客户服务助理示例。我们将经历以下步骤:
首先,我们将通过Moderation API检查输入是否违规。
其次,如果没有,我们将提取产品列表。
第三,如果找到产品信息,我们将尝试查找它们。
第四,我们用模型回答用户的问题。
第五,我们将通过Moderation API对答案进行审核。如果回答没有违规,我们可以把它返回给用户。
第六,对模型的回答进行质量评估
示例代码:
def process_user_message(user_input, all_messages, debug=True): delimiter = "```" # Step 1: Check input to see if it flags the Moderation API or is a prompt injection response = openai.Moderation.create(input=user_input) moderation_output = response["results"][0] if moderation_output["flagged"]: print("Step 1: Input flagged by Moderation API.") return "Sorry, we cannot process this request." if debug: print("Step 1: Input passed moderation check.") category_and_product_response = utils.find_category_and_product_only(user_input, utils.get_products_and_category()) #print(print(category_and_product_response) # Step 2: Extract the list of products category_and_product_list = utils.read_string_to_list(category_and_product_response) #print(category_and_product_list) if debug: print("Step 2: Extracted list of products.") # Step 3: If products are found, look them up product_information = utils.generate_output_string(category_and_product_list) if debug: print("Step 3: Looked up product information.") # Step 4: Answer the user question system_message = f""" You are a customer service assistant for a large electronic store. \ Respond in a friendly and helpful tone, with concise answers. \ Make sure to ask the user relevant follow-up questions. """ messages = [ {'role': 'system', 'content': system_message}, {'role': 'user', 'content': f"{delimiter}{user_input}{delimiter}"}, {'role': 'assistant', 'content': f"Relevant product information:\n{product_information}"} ] final_response = get_completion_from_messages(all_messages + messages) if debug:print("Step 4: Generated response to user question.") all_messages = all_messages + messages[1:] # Step 5: Put the answer through the Moderation API response = openai.Moderation.create(input=final_response) moderation_output = response["results"][0] if moderation_output["flagged"]: if debug: print("Step 5: Response flagged by Moderation API.") return "Sorry, we cannot provide this information." if debug: print("Step 5: Response passed moderation check.") # Step 6: Ask the model if the response answers the initial user query well user_message = f""" Customer message: {delimiter}{user_input}{delimiter} Agent response: {delimiter}{final_response}{delimiter} Does the response sufficiently answer the question? """ messages = [ {'role': 'system', 'content': system_message}, {'role': 'user', 'content': user_message} ] evaluation_response = get_completion_from_messages(messages) if debug: print("Step 6: Model evaluated the response.") # Step 7: If yes, use this answer; if not, say that you will connect the user to a human if "Y" in evaluation_response: # Using "in" instead of "==" to be safer for model output variation (e.g., "Y." or "Yes") if debug: print("Step 7: Model approved the response.") return final_response, all_messages else: if debug: print("Step 7: Model disapproved the response.") neg_str = "I'm unable to provide the information you're looking for. I'll connect you with a human representative for further assistance." return neg_str, all_messages user_input = "tell me about the smartx pro phone and the fotosnap camera, the dslr one. Also what tell me about your tvs"response,_ = process_user_message(user_input,[])print(response)1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677
上面的示例代码中,我们正在按步骤回答用户问题。第一步是审核输入,第二步是提取产品列表。第三步是查询产品信息。
当有了产品信息,模型则根据产品信息回答用户的问题。最后,它将回答再次给到Moderation API,以确保可以安全地显示给用户。
当然,这里也添加了让模型去评估回答质量的功能。
这些是我们之前文章知识的一个汇总。
提取产品信息的辅助函数utils.find_category_and_product_only
, utils.read_string_to_list
和utils.generate_output_string
这里没有列出来。可以在公众号《首飞》内输入“api”查看到完整的源码。
参考:
https://learn.deeplearning.ai/chatgpt-building-system/lesson/8/evaluation
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