关键词: 数据挖掘, 隐私, 协议, 决策树

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