UTDEventData: An R package to access political event data.HyoungAh Kim,Vito D'Orazio,Patrick T. Brandt, Michael Shoemate,Sayeed Salam,Latifur Khan,Jared LooperJ. Open Source Software(2019)引用 8|浏览49暂无评分AI 理解论文溯源树样例生成溯源树,研究论文发展脉络