Dynamic Optimization of Subquery Processing in Grid Database. - Naijing Hu; Yingying Wang; Liang Zhao (ICNC (5), 2007)

Privacy-Preserving Query based on Virtual Organization in Grid Database. - Naijing Hu; Huan Zhou; Liang Zhao (ICYCS, 2008)

Adaptive Evolvement of Query Plan Based on Low Cost in Dynamic Grid Database. - Naijing Hu; Yuan Luo; Yingying Wang (SNPD, 2008)

Privacy-Preserving Query Checking in Query Middleware. - Naijing Hu (FSKD (1), 2009)