Intelligent Information Processing Based On XML

XML has recently emerged as a standard for data representation and interchange of Web contents. But XML is solely a description language and not capable of allowing intelligent as well as automatic Web services. The dissertation goes into several key problems on the intelligent information processing based on XML. The main works and results are listed as follows.1. By deriving Document Type Definition from a frame, the frame is mapped to XML document to integrate conceptual modeling, inheritance and inference mechanism with the popularity, simplicity and flexibility of XML. A means of representing frame based on XDD(XML declarative description) is proposed. The frame's components are contents, constraints, and relationships, all of them can be represented by XDD. Its semantic is a set of XML elements, which are explicitly described by the frame instances or implicitly derived from the relationships and satisfy all the constraints. A method of mapping E-R representations onto corresponding XDD representation is proposed, which naturally combines together the conceptual model and the structural model of XML document.2. An approach to formalize and evaluate relational algebra operations by means of XDD is presented. A query is formalized as one or more XML clauses and evaluated by employment of equivalent transformation of XDD. An approach to formalize XML clauses by means of relational algebra is presented. A clause is formalized as a relational algebra expression and evaluated by employment of relational algebra operations.3. The proof theory based on XML is presented. The subsumption and request of problem is formalized by XDD and the problem is evaluated by means of proof theory.4. An approach to XML problem solving by means of resolution principle is presented. The subsumption and request of problem is formalized by XDD and the problem is evaluated by employment of resolution principle. An intelligent decision support system based on XML is presented. The problem which should be settled and the knowledge is represented in XDD, and the problem is solved by resolution principle. Thus, the information on the Web can be used in the decision process and it becomes easy to share and exchange data in or among the system.