: The traditional transportation information inquiry mainly uses key words based on the text, and the service the inquiry system provided is onefold and only aims at one transporti...
Verification Condition Generator (VCG) tools have been effective in simplifying the task of proving programs correct. However, in the past these VCG tools have in general not thems...
Usage control is concerned with how data is used after access to it has been granted. As such, it is particularly relevant to end users who own the data. System implementations of...
We study from an implementation viewpoint what constitutes a reasonable and effective notion of structural equivalence of terms in a calculus of concurrent processes and propose op...
The rapid development of the Internet and of distributed computing has led to a proliferation of online service providers such as digital libraries, web information sources, electr...