数据挖掘和知识发现（Data Mining and Knowledge Discovery，DMKD）技术就是在这样的背景下产生的，是在数据库技术、机器学习、人工智能、统计分析、模型逻辑、人工神经网络和专家系统等基础上发展起来的新兴交叉科学，是继网络之后的又一个技术热点。如果将数据库中的大量数据比喻为矿床，则DMKD技术就是从这矿床中挖掘知识的“金块”的工具。由于其诱人的前景和巨大的难道，使得DMKD成为计算机信息处理领域的研究热点和前沿技术。-Data Mining and Knowledge Discovery (Data Mining and Knowledge Discovery, DMKD) technology is produced in this background is in database technology, machine learning, artificial intelligence, statistical analysis, model logic, artificial neural network and expert system based on developed new interdisciplinary science, is the second network technology hot spot after another. If the database of a large number of data compared to deposits, the DMKD technology is the knowledge of mining this deposit, the "gold" tool. Because of its attractive prospects and huge Could make DMKD a computer information processing in the field of research focus and cutting-edge technology