The knowledge based engineering system is the specific concretion of knowledge engineering in many respects. 基于知识的工程系统是知识工程在各个领域的应用。
This article is to provide a perspicuous and direct survey on the data mining techniques from four classifictions based on the kinds of knowledge. 为了对数据采掘有一个比较清楚直观的了解，本文基于知识的种类将数据采掘分成四类，并在每一类中展现了一些有代表性的和比较新的技术。
