TODS'05 - December 2005, Volume 30, Issue 4 Optimization of query streams using semantic prefetching Ivan T. Bowman Kenneth Salem Foreword Dan Suciu Gerhard Weikum Composing schema mappings: Second-order dependencies to the rescue Ronald Fagin Phokion G. Kolaitis Lucian Popa Wang-Chiew Tan Conditional XPath Maarten Marx Wavelet synopses for general error metrics Minos N. Garofalakis Amit Kumar Graph indexing based on discriminative frequent structure analysis Xifeng Yan Philip S. Yu Jiawei Han Synopses for query optimization: A space-complexity perspective Raghav Kaushik Jeffrey F. Naughton Raghu Ramakrishnan Venkatesan T. Chakravarthy Return to TODS'05 session listing ©2006 Association for Computing Machinery