AskNews
AskNews 通过单一的自然语言查询，将最新的全球新闻（或历史新闻）注入任何LLM。具体来说，AskNews每天通过翻译、总结、提取实体并将它们索引到热和冷向量数据库中，丰富了超过30万篇文章。AskNews将这些向量数据库放在一个低延迟的端点上供您使用。当您查询AskNews时，您会得到一个包含所有最相关增强（例如实体、分类、翻译、总结）的提示优化字符串。这意味着您不需要管理自己的新闻RAG，也不需要担心如何以简洁的方式正确传达新闻信息给您的LLM。 AskNews还致力于透明度，这就是为什么我们的报道在数百个国家、13种语言和5万个来源中受到监控和多样化。如果您想跟踪我们的来源覆盖情况，可以访问我们的透明度仪表板。
设置
集成位于lang-community包中。我们还需要安装asknews包本身。
pip install -U langchain-community asknews
我们还需要设置我们的AskNews API凭证，这些凭证可以在AskNews控制台获取。
import getpass
import os
os.environ["ASKNEWS_CLIENT_ID"] = getpass.getpass()
os.environ["ASKNEWS_CLIENT_SECRET"] = getpass.getpass()
用法
这里我们展示如何单独使用该工具。
from langchain_community.tools.asknews import AskNewsSearch
tool = AskNewsSearch(max_results=2)
tool.invoke({"query": "Effect of fed policy on tech sector"})
API Reference:AskNewsSearch
"\n<doc>\n[1]:\ntitle: Market Awaits Comments From Key Fed Official\nsummary: The market is awaiting comments from Fed Governor Christopher Waller, but it's not expected to move markets significantly. The recent Consumer Price Index (CPI) report showed slimming inflation figures, leading to a conclusion that inflation is being curbed. This has led to a 'soft landing' narrative, causing bullish sentiment in the stock market, with the Dow, S&P 500, Nasdaq, and Russell 2000 indices near all-time highs. NVIDIA is set to report earnings next week, and despite its 95% year-to-date growth, it remains a Zacks Rank #1 (Strong Buy) stock. The article also mentions upcoming economic data releases, including New and Existing Home Sales, S&P flash PMI Services and Manufacturing, Durable Goods, and Weekly Jobless Claims.\nsource: Yahoo\npublished: May 17 2024 14:53\nOrganization: Nasdaq, Fed, NVIDIA, Zacks\nPerson: Christopher Waller\nEvent: Weekly Jobless Claims\nclassification: Business\nsentiment: 0\n</doc>\n\n<doc>\n[2]:\ntitle: US futures flat as Fed comments cool rate cut optimism\nsummary: US stock index futures remained flat on Thursday evening, following a weak finish on Wall Street, as Federal Reserve officials warned that bets on interest rate cuts were potentially premature. The Fed officials, including Atlanta Fed President Raphael Bostic, New York Fed President John Williams, and Cleveland Fed President Loretta Mester, stated that the central bank still needed more confidence to cut interest rates, and that the timing of the move remained uncertain. As a result, investors slightly trimmed their expectations for a September rate cut, and the S&P 500 and Nasdaq 100 indexes fell 0.2% and 0.3%, respectively. Meanwhile, Reddit surged 11% after announcing a partnership with OpenAI, while Take-Two Interactive and DXC Technology fell after issuing disappointing earnings guidance.\nsource: Yahoo\npublished: May 16 2024 20:08\nLocation: US, Wall Street\nDate: September, Thursday\nOrganization: Atlanta Fed, Cleveland Fed, New York Fed, Fed, Reddit, Take-Two Interactive, DXC Technology, OpenAI, Federal Reserve\nTitle: President\nPerson: Loretta Mester, Raphael Bostic, John Williams\nclassification: Business\nsentiment: 0\n</doc>\n"
链式调用
我们在这里展示如何将其作为代理的一部分使用。我们使用OpenAI Functions Agent，因此我们需要设置并安装所需的依赖项。我们还将使用LangSmith Hub来获取提示，因此我们需要安装它。
pip install -U langchain-openai langchainhub
import getpass
import os
os.environ["OPENAI_API_KEY"] = getpass.getpass()
from langchain import hub
from langchain.agents import AgentExecutor, create_openai_functions_agent
from langchain_community.tools.asknews import AskNewsSearch
from langchain_openai import ChatOpenAI
prompt = hub.pull("hwchase17/openai-functions-agent")
llm = ChatOpenAI(temperature=0)
asknews_tool = AskNewsSearch()
tools = [asknews_tool]
agent = create_openai_functions_agent(llm, tools, prompt)
agent_executor = AgentExecutor(agent=agent, tools=tools)
agent_executor.invoke({"input": "How is the tech sector being affected by fed policy?"})
{'input': 'How is the tech sector being affected by fed policy?',
'output': 'The tech sector is being affected by federal policy in various ways, particularly in relation to artificial intelligence (AI) regulation and investment. Here are some recent news articles related to the tech sector and federal policy:\n\n1. The US Senate has released a bipartisan AI policy roadmap, addressing areas of consensus and disagreement on AI use and development. The roadmap includes recommendations for intellectual property reforms, funding for AI research, sector-specific rules, and transparency requirements. It also emphasizes the need for increased funding for AI innovation and investments in national defense. [Source: The National Law Review]\n\n2. A bipartisan group of US senators, led by Senate Majority Leader Chuck Schumer, has proposed allocating at least $32 billion over the next three years to develop AI and establish safeguards around it. The proposal aims to regulate and promote AI development to maintain US competitiveness and improve quality of life. [Source: Cointelegraph]\n\n3. The US administration is planning to restrict the export of advanced AI models to prevent China and Russia from accessing the technology. This move is part of efforts to protect national security and prevent the misuse of AI by foreign powers. [Source: O Cafezinho]\n\n4. The US and China have discussed the risks of AI technologies, with the US taking the lead in the AI arms race. The US has proposed a $32 billion increase in federal spending on AI to maintain its lead, despite concerns about stifling innovation. [Source: AOL]\n\nThese articles highlight the ongoing discussions and actions related to AI regulation, investment, and export restrictions that are impacting the tech sector in response to federal policy decisions.'}