AskNews
AskNews 使用單一自然語言查詢，將任何 LLM 注入最新的全球新聞（或歷史新聞）。具體而言，AskNews 每天豐富超過 30 萬篇文章，方法是翻譯、摘要、提取實體，並將它們索引到熱向量和冷向量資料庫中。AskNews 將這些向量資料庫放在低延遲端點上供您使用。當您查詢 AskNews 時，您會取回一個提示最佳化的字串，其中包含所有最相關的豐富內容（例如實體、分類、翻譯、摘要）。這表示您無需管理自己的新聞 RAG，也無需擔心如何以精簡的方式將新聞資訊傳達給您的 LLM。AskNews 也致力於透明化，這就是為什麼我們的報導範圍受到監控並分散在數百個國家、13 種語言和 5 萬個來源的原因。如果您想追蹤我們的來源涵蓋範圍，您可以造訪我們的透明化儀表板。
設定
此整合存在於 langchain-community 套件中。我們還需要安裝 asknews 套件本身。
pip install -U langchain-community asknews
我們還需要設定我們的 AskNews API 憑證，這可以在 AskNews 控制台取得。
import getpass
import os
os.environ["ASKNEWS_CLIENT_ID"] = getpass.getpass()
os.environ["ASKNEWS_CLIENT_SECRET"] = getpass.getpass()
使用方式
這裡我們展示如何個別使用此工具。
from langchain_community.tools.asknews import AskNewsSearch
tool = AskNewsSearch(max_results=2)
tool.invoke({"query": "Effect of fed policy on tech sector"})
API 參考：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"
鏈接
我們在此展示如何將其用作代理程式的一部分。我們使用 OpenAI Functions Agent，因此我們需要設定並安裝該代理程式所需的依賴項。我們也將使用 LangSmith Hub 從中提取提示，因此我們需要安裝它。
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.'}