英文:
Langchain agents
问题
我在使用Langchain代理与Serpapi以及本地的LLM时遇到了问题。当我连接到OpenAI时，我成功地完成了相同的操作。
我的本地LLM模型可以是MPT-7B模型或30B_Lazarus，都处于文本生成模式。
我的代码如下。
from langchain.agents import load_toolsfrom langchain.agents import initialize_agentimport jsonquery = "Get Microsoft share price from the www.bloomberg.com and include the url where you got this information."llm = HuggingFacePipeline(pipeline=generate_text)toolkit = load_tools(["serpapi"], llm=llm, serpapi_api_key=SERPAPI_API_KEY)agent = initialize_agent(toolkit, llm, agent="zero-shot-react-description", verbose=True, return_intermediate_steps=True)response = agent({"input": query})
详细消息如下。
进入新的链条...
我应该在互联网上搜索信息
操作：在互联网上搜索信息
操作输入：www.bloomberg.com
观察：在互联网上搜索信息不是有效的工具，请尝试另一个工具。
思考：我应该使用搜索引擎来查找信息
操作：在搜索引擎上搜索信息
操作输入：Microsoft股价
观察：在搜索引擎上搜索信息不是有效的工具，请尝试另一个工具。
英文:
I have a problem using Langchain agent with Serpapi together with a local LLM. I have successfully do the same thing when I connect with OpenAI.
My local LLM is either the MPT-7B model and the 30B_Lazarus on text generation mode.
My codes looks like this.
from langchain.agents import load_toolsfrom langchain.agents import initialize_agentimport jsonquery="Get Microsoft share price from the www.bloomberg.com and include the url where you got this information."llm = HuggingFacePipeline(pipeline=generate_text)toolkit = load_tools(["serpapi"], llm=llm, serpapi_api_key=SERPAPI_API_KEY)agent = initialize_agent(toolkit, llm, agent="zero-shot-react-description", verbose=True, return_intermediate_steps=True)response = agent({"input":query})
The verbose message looks like this.
Entering new chain...
I should search for the information on the internet
Action: Search for the information on the internet
Action Input: www.bloomberg.com
Observation: Search for the information on the internet is not a valid tool, try another one.
Thought: I should use a search engine to find the information
Action: Search for the information on a search engine
Action Input: Microsoft share price
Observation: Search for the information on a search engine is not a valid tool, try another one.
答案1
得分: 1
这个 agent="zero-shot-react-description" 不是适用于搜索引擎的正确代理类型。你应该使用 self_ask_with_search 代理类型：
from langchain import OpenAI, SerpAPIWrapperfrom langchain.agents import initialize_agent, Toolfrom langchain.agents import AgentType# 你可以定义一个不同的llmllm = OpenAI(temperature=0)search = SerpAPIWrapper()tools = [Tool(name="Intermediate Answer",func=search.run,description="useful for when you need to ask with search",)]self_ask_with_search = initialize_agent(tools, llm, agent=AgentType.SELF_ASK_WITH_SEARCH, verbose=True)self_ask_with_search.run("What is the hometown of the reigning men's U.S. Open champion?")
英文:
this agent="zero-shot-react-description" is not the right agent type for the search engine. you should be using self_ask_with_search agent type:
from langchain import OpenAI, SerpAPIWrapperfrom langchain.agents import initialize_agent, Toolfrom langchain.agents import AgentType# you can define a different llmllm = OpenAI(temperature=0)search = SerpAPIWrapper()tools = [Tool(name="Intermediate Answer",func=search.run,description="useful for when you need to ask with search",)]self_ask_with_search = initialize_agent(tools, llm, agent=AgentType.SELF_ASK_WITH_SEARCH, verbose=True)self_ask_with_search.run("What is the hometown of the reigning men's U.S. Open champion?")
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