The weather on my mobile phone, when you type in London, has eight suffixes, namely, Ky, TX, CA, OH, WV, AR, OR and MI?

Reference answer: Collective Intelligence: Collective intelligence, that is, through the information provided by users or the information created by users when using services, find the internal laws or structures of information and apply them to optimize services. The general method is to cluster people or resources according to the individual characteristics or dynamic usage statistics of information resources. Or use the relevant feedback information of users to obtain the corresponding parameters. Library 2.0 imitates Amazon and other Web2.0 applications to recommend books and information resources, or helps readers form reading/interest groups.