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SIGMOD
2001
ACM
104views Database» more  SIGMOD 2001»
16 years 15 hour ago
Querying Multi-dimensional Data Indexed Using the Hilbert Space-filling Curve
Mapping to one-dimensional values and then using a onedimensional indexing method has been proposed as a way of indexing multi-dimensional data. Most previous related work uses th...
Jonathan K. Lawder, Peter J. H. King
ICRA
2008
IEEE
95views Robotics» more  ICRA 2008»
15 years 6 months ago
Observability index selection for robot calibration
— This paper relates 5 observability indexes for robot calibration to the “alphabet optimalities” from the experimental design literature. These 5 observability indexes are s...
Yu Sun, John M. Hollerbach
MSS
2010
IEEE
110views Hardware» more  MSS 2010»
14 years 6 months ago
A stability index for local effectivity functions
Abstract We study the structure of unstable local effectivity functions defined for n players and p alternatives. A stability index based on the notion of cycle is introduced. In t...
Joseph Abdou
COMAD
2009
15 years 29 days ago
Querying for relations from the semi-structured Web
We present a class of web queries whose result is a multi-column relation instead of a collection of unstructured documents as in standard web search. The user specifies the query...
Sunita Sarawagi
VLDB
2011
ACM
251views Database» more  VLDB 2011»
14 years 6 months ago
Harvesting relational tables from lists on the web
A large number of web pages contain data structured in the form of “lists”. Many such lists can be further split into multi-column tables, which can then be used in more seman...
Hazem Elmeleegy, Jayant Madhavan, Alon Y. Halevy