XML Querying Techniques

Sherif Sakr (NICTA)

CSIRO ICT

DATE: 2008-06-10
TIME: 16:00:00 - 17:00:00
LOCATION: CSIT Seminar Room, N101
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ABSTRACT:
With the rapid growth in the use of XML documents as a universal format for storage and interchange of the data on the Web, several efforts have been made in order to develop efficient techniques for storing and querying XML data. Since XQuery is becoming the standard XML query language, significant effort has been made in developing efficient implementation of XQuery query processor. The talk will present the idea of relational XQuery evaluation techniques which are embodied in the research prototype MonetDB/XQuery. The presented techniques make the scalability advantages of existing relational database kernels immediately accessible to the processing of XQuery and resulting in unprecedented scalability with XML document sizes. In addition, the talk will give an overview of the development of ComQU project which presents another approach of implementing XML querying engines. ComQu project aims of developing a parsimonious XML memory representations which can be efficiently queried. The plan of this project includes building a programming library that implements these representations and provides a standard interface (W3C DOM). In contrast to existing DOM libraries, the new library is planned to be tuned to particular space/speed requirements.

BIO:
Sherif Sakr received the B.Sc. degree in Computer Science from Information Systems Department, the Faculty of Computers and Information, Cairo University, Egypt, in 2000 and he was ranked as the first of his department. He received the Preparatory Master degree in Information Systems from the same department in 2001 and he also was ranked as the first of his department. He received his Master degree from the same department in March 2003. In 2007 he received his PhD in the computer science from the department of Database and Information Systems , Konstanz University. Currently, he is a Postdoctoral fellow at NICTA and UNSW and an adjunct lecturer of computer science on Macquarie University.