基于改进KNN算法实现网络媒体信息智能分类 关键词：智能分类；KNN算法；查全率；查准率 [gap=1380]Key words：intelligence classification；KNN algorithm；recall；precision
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The key techniques include,standard of classifying is confirmed,research and implement of intelligent classification technique,metadata is confirmed,text,image,and metadata are distilled,the technique of XML is applied to digital library,the function of storing data to DBs is implemented.
其中关键的技术是：分类标准的确定；智能分类技术的研究和实现；元数据的确定；文本、图像和元数据的提取；XML技术在数字图书馆中的应用；自动入库功能的实现。
参考来源 - 数字图书馆中数据预处理子系统的设计与实现·2,447,543篇论文数据，部分数据来源于NoteExpress
因为这些信息服务涉及对信息智能分类管理。
That's because the services are evolving toward smart sorting.
智能分类器不但可以对未知样本进行分类识别，还具有多专家决策、预分类、学习等功能。
ICF can classify unknown samples as the traditional classifier. It also has some functions such as multi-experts decision, pre-classifying and learning.
研究结果表明训练成功的BP网络可作为智能分类器对斜轴泵的常见故障进行识别和诊断。
According to the fault features extracted from the pump vibration via wavelet transform, the working conditions and the faults of the pump can be classified and identified by the BP neural networks.
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