Youzhong Liu

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This paper describes the design and implementation of a replicable, Internet-based negotiation server for conducting bargaining-type negotiations between enterprises involved in e-commerce and e-business. Enterprises can be buyers and sellers of products/services or participants of a complex supply chain engaged in purchasing, planning, and scheduling.(More)
Business organizations are often faced with decision situations in which the costs and benefits of some competing business specifications such as business offers, product specifications, or negotiation proposals need to be evaluated in order to select the best or desirable ones. In e-business, there is a need to automate the cost – benefit evaluation(More)
Bacterial malolactic fermentation (MLF) has a considerable impact on wine quality. The yeast strain used for primary fermentation can systematically stimulate (MLF+ phenotype) or inhibit (MLF−) bacteria and the MLF process as a function of numerous winemaking practices, but the underlying molecular evidence still remains a mystery. The goal of the study was(More)
Interpreting non-targeted metabolomics data remains a challenging task. Signals from non-targeted metabolomics studies stem from a combination of biological causes, complex interactions between them and experimental bias/noise. The resulting data matrix usually contain huge number of variables and only few samples, and classical techniques using nonlinear(More)
Due to the persistence of mainframe applications in most enterprises, modern desktops need to use terminal emulation software to communicate with these applications. With the e-commerce revolution, it has become essential for enterprises to provide web access to these legacy systems to extend their scope to a larger, nomadic population of users. It is(More)
To my parents and wife iv ACKNOWLEDGMENTS This research would not be complete without the contributions of several people. encouragement throughout the entire project. Their guidance and wisdom have allowed me to finish this work in a timely fashion. I would also like to express my thanks to Dr. Steve Thebaut for serving on my committee and for his valuable(More)
To my dear parents and wife iv ACKNOWLEDGMENTS First and foremost, I would like to express my gratitude toward my advisor, Dr. for giving me the opportunity to work with him in the Database Systems Research and Development Center. His excellent advice and great guidance, and fruitful discussions on many aspects of this dissertation are invaluable. My full(More)