Chen Zeng,Jeffrey F Naughton,Jin-Yi Cai
Chen Zeng
We consider differentially private frequent itemset mining. We begin by exploring the theoretical difficulty of simultaneously providing good utility and good privacy in this task. While our analysis proves that in general this is very diff...
Performance analysis of a dual-tree algorithm for computing spatial distance histograms [0.03%]
计算空间距离直方图的双树算法性能分析
Shaoping Chen,Yi-Cheng Tu,Yuni Xia
Shaoping Chen
Many scientific and engineering fields produce large volume of spatiotemporal data. The storage, retrieval, and analysis of such data impose great challenges to database systems design. Analysis of scientific spatiotemporal data often invol...