关键词：大数据，模糊数据，城市信息，GIS，遗忘
摘 要：讨论了城市信息的两个问题。第一个话题是大数据。信息量正在增加，迟早有一种更好的处理信息的方法是必要的，那就是明智地忘记。第二个主题是模糊数据。我们经常传递的非正式信息是模糊的。处理模糊数据的明智操作至关重要。两者都是城市信息研究的前沿。
Abstract:Two concerns for city information are discussed. The first topic is the big data. Volume of information is increasing and sooner or later a better way to handle information may become necessary, that is to forget wisely. The second topic is the vague data. Casual information we often transmit is vague. A wiser operation to deal with vague data is essential. Both are the frontiers in studying city information.
Key:Big data, Vague data, City information, GIS, Oblivion
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