The gap between data and information requires the systematic development for data mining tools which transform data tomb to knowledge bullion.
数据和信息之间的鸿沟要求系统地开发数据挖掘工具，将数据坟墓转换成知识“金块”。
This paper explains the relationship between the narrowing and filling of information gap and the extending and altering of schema knowledge.
本文主要阐释了信息差缩小和填补与图式知识扩展、延伸和改变的相互关联。
But there are knowledge gap between the images and information, thus the main question of information extraction of remote sensing is built corresponding relationship of images and ground objects.
但是由于遥感影像与遥感信息之间存在明显的知识间隙，因而建立遥感影像与地物的综合对应关系是填补遥感信息提取的主要研究内容。
Vulnerable group; Information supporting; Information guarantee mechanism; Knowledge Gap Theory.
弱势群体；信息援助； 信息保障机制；知识沟理论。
Vulnerable group; Information supporting; Information guarantee mechanism; Knowledge Gap Theory.
弱势群体；信息援助； 信息保障机制；知识沟理论。
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