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COMPUTING
2007
101views more  COMPUTING 2007»
13 years 8 months ago
Reverse engineering with subdivision surfaces
Reverse engineering is concerned with the reconstruction of surfaces from three-dimensional point clouds originating from laser-scanned objects. We present an adaptive surface rec...
P. Keller, Martin Bertram, Hans Hagen
EDBT
2002
ACM
139views Database» more  EDBT 2002»
14 years 9 months ago
Aggregate Processing of Planar Points
Abstract. Aggregate window queries return summarized information about objects that fall inside a query rectangle (e.g., the number of objects instead of their concrete ids). Tradi...
Yufei Tao, Dimitris Papadias, Jun Zhang
MKTSCI
2010
92views more  MKTSCI 2010»
13 years 3 months ago
Optimal Reverse-Pricing Mechanisms
Reverse pricing is a market mechanism under which a consumer's bid for a product leads to a sale if the bid exceeds a hidden acceptance threshold the seller has set in advanc...
Martin Spann, Robert Zeithammer, Gerald Häubl
SIGMOD
2006
ACM
162views Database» more  SIGMOD 2006»
14 years 9 months ago
Adaptive query processing: why, how, when, what next
Adaptive query processing has been the subject of a great deal of recent work, particularly in emerging data management environments such as data integration and data streams. We ...
Amol Deshpande, Joseph M. Hellerstein, Vijayshanka...
VLDB
2002
ACM
106views Database» more  VLDB 2002»
13 years 8 months ago
Efficient Algorithms for Processing XPath Queries
Our experimental analysis of several popular XPath processors reveals a striking fact: Query evaluation in each of the systems requires time exponential in the size of queries in ...
Georg Gottlob, Christoph Koch, Reinhard Pichler