Working with Professor Raghu Ramakrishnan, I investigated the tradeoff between data utility and privacy preservation in data publishing. Specifically, I defined and studied the problem of learning classification models from (privacy-preserved) SQL aggregate views [8], and proposed a novel framework that allows publishing organizations to investigate privacy threats and enforce privacy requirements in the presence of various types and amounts of adversaries' external knowledge [13].

Working with Professor Raghu Ramakrishnan, I defined and investigated several novel data mining problems [6, 10] that combine predictive modeling and OLAP multidimensional exploration, which result in a promising research direction, cube-space data mining [11]. I was also involved in the design of an aggregation workflow framework [9], research on network coordinated attack data analysis [7] and research on atmospheric aerosol monitoring.

I worked with Dr. Surajit Chaudhuri, Dr. Venkatesh Ganti and Dr. Raghav Kaushik on example-driven design of record matching queries for data cleaning [12].

Working with Professor Jieh Hsiang, I developed a novel knowledge retrieval framework and its fuzzy logic inference theory [5].

Working with Professor Jieh Hsiang, I built a content-based image retrieval (CBIR) system for butterflies. Because of the success of my methodology, in the following years, there were five M.S. and one Ph.D. studies based on my CBIR architecture in Professor Hsiang's research group.

During 1998 and 1999, I was involved in the design of this Digital Museum on Taiwanese Butterflies. It was a project supported by National Science Council, Taiwan.