Semantics in XML Data Processing

Using Semantics in Xml Data Management

XML is emerging as a de facto standard for information exchange over the Web, while businesses and enterprises generate and exchange large amounts of XML data daily. One of the major challenges is how to query this data efficiently. Queries typically can be represented as twig patterns. Some researchers have developed algorithms that reduce the intermediate results that are generated during que...

XML Schema Directory: A Data Structure for XML Data Processing

The problem addressed in this paper is the execution of XML queries over a large collection of XML documents. This paper concentrates on how to develop the necessary infrastructure to effectively manipulate XML data and it proposes a data structure, named XML Schema Directory (XSD), as an access means to XML repositories. The aim of XSD is to accelerate query processing by quickly finding the r...

Discovering Semantics from Data-Centric XML

In database applications, the availability of a conceptual schema and semantics constitute invaluable leverage for improving the effectiveness, and sometimes the efficiency, of many tasks including query processing, keyword search and schema/data integration. The ObjectRelationship-Attribute model for Semi-Structured data (ORA-SS) model is a conceptual model intended to capture the semantics of...

TwigTable: Using Semantics in XML Twig Pattern Query Processing

In this paper, we demonstrate how the semantic information, such as value, property, object class and relationship between object classes in XML data impacts XML query processing. We show that the lack of using semantics causes different problems in value management and content search in existing approaches. Motivated on solving these problems, we propose a semantic approach for XML twig patter...

Advanced Applications and Structures in XML Processing : Label Streams , Semantics Utilization and Data