请在网上搜索最近的五篇有关人工智能的文章，并为每篇文章撰写一句话的简介。
进行一次网上搜索，找到最近的五篇有关人工智能的文章，为每篇文章撰写一句话的简介。
1. "AI model detects asymptomatic Covid-19 infections through cellphone-recorded coughs" - Researchers have developed an AI model that can detect asymptomatic COVID-19 infections with high accuracy through cough recordings made on a smartphone.
2. "AI algorithm can now mimic handwriting with just a few strokes" - A team of computer scientists has developed an AI algorithm that can learn to imitate a person's handwriting style with just a few pen strokes.
3. "DeepMind achieves protein-folding breakthrough that could accelerate drug discovery" - Researchers at DeepMind have developed an AI program capable of accurately predicting the 3D structure of proteins, potentially accelerating drug discovery and other scientific research.
4. "IBM Unveils an AI That ‘Can Debate Humans’" - IBM has unveiled an AI model that can engage in debates with humans, using a range of real-world subjects and relevant arguments to create convincing responses.
5. "AI is learning when to step in—and when to step back—at work" - Companies are using AI to assist in decision-making and workflow, while also balancing the need for human intuition and judgement in complex situations.