Using semantics for XPath query transformation

Abstract

In this paper, we propose a typology of the semantic transformations for XPath queries. We focus on two main areas. The first is structural transformation for XPath query, which can be semantically contracted, expanded or complemented using structural constraints. The second is semantic qualifier transformation where the predicates, specified by [ ], in an XPath query can be eliminated or transformed. We design a set of algorithms and implement a prototype system for evaluation. We adopt two representative off-the-shelf XML data management systems to validate the effectiveness of the semantic transformations. areas cover a wide range of advanced databases topics including XML databases, spatial and temporal databases and data warehousing, and semantic web and ontology. She is currently the Head of Data Engineering and Knowledge Management Laboratory at La Trobe University.Eric Pardede completed his Doctor of Philosophy in Computer Science and Master of Information Technology from La Trobe University. He has published his research works in various books, international journals and conference proceedings. Currently, he is a Lecturer in Software Engineering and Database

Energy Conservation in Mobile Devices and Applications: A Case for Context Parsing, Processing and Distribution in Clouds

“…XPath based queries that are much complex than these, such as those that consider both ancestor and descendant relationships, can be analysed. XPath query optimisation techniques, such as semantic query transformations [16] can also be explored to optimise the processing of complex queries in our system. Moreover, our analysis has been restricted to fixed sized ContextML documents during the experiments.…”