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» Loops: Relevant or Redundant
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DBKDA
2010
IEEE
169views Database» more  DBKDA 2010»
14 years 3 months ago
XLeaf: Twig Evaluation with Skipping Loop Joins and Virtual Nodes
Abstract—XML indexing and search has become an important topic, and twig joins are key building blocks in XML search systems. This paper describes a novel approach using a nested...
Nils Grimsmo, Truls Amundsen Bjørklund, &Os...
ICML
2004
IEEE
14 years 11 months ago
Text categorization with many redundant features: using aggressive feature selection to make SVMs competitive with C4.5
Text categorization algorithms usually represent documents as bags of words and consequently have to deal with huge numbers of features. Most previous studies found that the major...
Evgeniy Gabrilovich, Shaul Markovitch
CVPR
2010
IEEE
14 years 6 months ago
Disambiguating Visual Relations Using Loop Constraints
Repetitive and ambiguous visual structures in general pose a severe problem in many computer vision applications. Identification of incorrect geometric relations between images s...
Christopher Zach, Manfred Klopschitz, Marc Pollefe...
ICRA
2003
IEEE
112views Robotics» more  ICRA 2003»
14 years 3 months ago
Cartesian impedance control of redundant robots: recent results with the DLR-light-weight-arms
— This paper addresses the problem of impedance control for flexible joint robots based on a singular perturbation approach. Some aspects of the impedance controller, which turn...
Alin Albu-Schäffer, Christian Ott, Udo Frese,...
TWC
2010
13 years 5 months ago
Closed-Loop Transmit Diversity with Imperfect Feedback
The closed-loop transmit diversity technique is used to improve the performance of the downlink channel in MIMO communication systems. In these closed-loop systems, feedback delay...
A. Heidari, Amir K. Khandani