Table of Contents

Introduction.- Semantic Web.- External Sorting and B+-Trees.- Query Processing Overview.- Logical Optimization.- Physical Optimization.- Streams.- Parallel Databases.- Inference.- Visual Query Languages.- Embedded Languages.- Comparson of the XML and Semantic Web Worlds.- Summary, Conclusions and Future Work

About the Author

Sven Groppe is a research assistant in the Institute of Information Systems at the University of Lübeck, Germany. He holds a Ph.D. from the University of Paderborn on query reformulation for the XML standards XPath, XSLT and XQuery. He was a member of the DAWG W3C Working Group that developed the W3C standard query language SPARQL. His research focus is on large-scale Semantic Web data management and its application in e-business scenarios.