Abstract: The paper briefly introduced the concept of privacy preserving data mining technology and studied the application of decision tree classifier in this particular field. A decision tree classifier was applied and a scalar product protocol was added, so that the need of privacy preserving is satisfied as well as the advantage of decision tree is retained.

Key words: data mining, privacy, protocol, decision tree

摘要： 介绍了保持隐私的数据挖掘技术,研究了决策树分类器在保持隐私的数据挖掘中的应用。在传统的决策树算法中引入标量积协议,既保持决策树算法本身的优点,又满足了保持隐私的需求。

关键词: 数据挖掘, 隐私, 协议, 决策树