Yury Soldak, Maxim Lukichev. Enabling XPath Optional Axes Cardinality Estimation Using Path Synopses. In Paolo Atzeni, Albertas Caplinskas, Hannu Jaakkola, editors, Advances in Databases and Information Systems, 12th East European Conference, ADBIS 2008, Pori, Finland, September 5-9, 2008. Proceedings. Volume 5207 of Lecture Notes in Computer Science, pages 279-294, Springer, 2008. [doi]
Abstract is missing.