organizers created the international ai city challenge to spur the development of artificial intelligence for real-world scenarios. in the first years, teams representing american companies or universities took top spots in the competition. last week, chinese tech giants alibaba and baidu swept the ai city challenge, beating competitors from nearly 40 nations. （a global smart-city competition highlights china's rise in ai，by wired）
comment:
in china, cutting-edge technologies such as ai have been booming. chinese companies and research institutes should build up the patent portfolio planning while putting emphasis on technological innovation, so as to promote sound development of ai industry.
（editor li xingyi）
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