Xyleme, a dynamic warehouse for XML data of the Web
Serge Abiteboul, Vincent Aguiléra, S. Ailleret, Bernd Amann, Federico Arambarri, Sophie Cluet, Grégory Cobéna, Grégory Corona, Guy Ferran, Alban Galland, Mountaz Hascoët, Carl-Christian Kanne, B. Koechlin, D. Le Niniven, Amélie Marian, Laurent Mignet, Guido Moerkotte, Benjamin Nguyen, Mihai Alexandru Preda, Marie-Christine Rousset · 2002
The current development of the Web and the generalization of XML technology provide a major opportunity which can radically change the face of the Web. Xyleme intends to be a leader of this revolution by providing database services over the XML data of the Web. Originally, Xyleme was a research project functioning as an open, loosely coupled network of researchers. At the end of 2000, a prototype had been implemented. A start-up company, also called Xyleme, is now turning into a product. The authors summarize the main research efforts of the Xyleme team. They concern: a scalable architecture; the efficient storage of huge quantities of XML data (hundreds of millions of pages); XML query processing with full-text and structural indexing; data acquisition strategies to build the repository and keep it up-to-date; change control with services such as query subscription; and semantic data integration to free users from having to deal with many specific DTDs when expressing queries.