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SIGMOD
1997
ACM
180views Database» more  SIGMOD 1997»
15 years 11 months ago
Online Aggregation
Aggregation in traditional database systems is performed in batch mode: a query is submitted, the system processes a large volume of data over a long period of time, and, eventual...
Joseph M. Hellerstein, Peter J. Haas, Helen J. Wan...
CAIP
1997
Springer
168views Image Analysis» more  CAIP 1997»
15 years 11 months ago
Terrain Reconstruction from Multiple Views
A two-stage approach is discussed for reconstructing a dense digital elevation model DEM of the terrain from multiple pre-calibrated images taken by distinct cameras at di erent ...
Georgy L. Gimel'farb, Robert M. Haralick
CP
1997
Springer
15 years 11 months ago
Ordering Constraints over Feature Trees
Feature trees have been used to accommodate records in constraint programming and record like structures in computational linguistics. Feature trees model records, and feature cons...
Martin Müller, Joachim Niehren, Andreas Podel...
IPPS
1996
IEEE
15 years 11 months ago
The Chessboard Distance Transform and the Medial Axis Transform are Interchangeable
The distance transform (DT) and the medial axis transform (MAT) are two image computation tools used to extract the information about the shape and the position of the foreground ...
Yu-Hua Lee, Shi-Jinn Horng
ICDT
1997
ACM
138views Database» more  ICDT 1997»
15 years 11 months ago
Tractable Iteration Mechanisms for Bag Languages
Abstract. The goal of this paper is to study tractable iteration mechanisms for bags. The presence of duplicates in bags prevents iteration mechanisms developed in the context of s...
Latha S. Colby, Leonid Libkin