Keyword search is a friendly mechanism for the end user to identify interesting nodes in XML databases, and the SLCA (smallest lowest common ancestor)-based keyword search is a popular concept for locating the desirable subtrees corresponding to the given query keywords. However, it does not evaluate the importance of each node under those subtrees. Liu and Chen proposed a new concept contribut...

Evaluating the efficiency of decision making units has been frequently elaborated on in numerous publications. In this paper, the theoretical framework for a novel method of Distance Based Analysis (DBA) is presented. In addition, the method is performed on a sample of the ARWU’s top 54 Universities of the United States; the findings of which clearly demonstrate that the best ranked Universitie...