Preface to the special issue on spatial database systems Ralf Hartmut Güting EditorialNotes Pages: vii - ix
A semantic modeling approach for image retrieval by content Wesley W. ChuIon T. leongRicky K. Taira OriginalPaper Pages: 445 - 477
Qualitative representation of spatial knowledge in two-dimensional space Dimitris PapadiasTimos Sellis OriginalPaper Pages: 479 - 516
The TV-tree: An index structure for high-dimensional data King-Ip LinH. V. JagadishChristos Faloutsos OriginalPaper Pages: 517 - 542