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» Computing stable models: worst-case performance estimates
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ICASSP
2008
IEEE
14 years 3 months ago
Stability analysis of complex maximum likelihood ica using Wirtinger calculus
The desirable asymptotic optimality properties of the maximum likelihood (ML) estimator make it an attractive solution for performing independent component analysis (ICA) as well....
Hualiang Li, Tülay Adali
HAPTICS
2007
IEEE
14 years 3 months ago
JND Analysis of Texture Roughness Perception using a Magnetic Levitation Haptic Device
This paper describes the use of a magnetic levitation haptic device (MLHD) to study the psychophysics of texture roughness. Studies of texture roughness perception performed using...
Bertram Unger, Ralph L. Hollis, Roberta L. Klatzky
ICNP
2007
IEEE
14 years 3 months ago
Slotted Scheduled Tag Access in Multi-Reader RFID Systems
Abstract—Radio frequency identification (RFID) is a technology where a reader device can “sense” the presence of a closeby object by reading a tag device attached to the obj...
Zongheng Zhou, Himanshu Gupta, Samir R. Das, Xianj...
ICRA
2007
IEEE
222views Robotics» more  ICRA 2007»
14 years 3 months ago
Autonomous Vision-based Landing and Terrain Mapping Using an MPC-controlled Unmanned Rotorcraft
In this paper, we present a vision-based terrain mapping and analysis system, and a model predictive control (MPC)based flight control system, for autonomous landing of a helicop...
Todd Templeton, David Hyunchul Shim, Christopher G...
BTW
2007
Springer
142views Database» more  BTW 2007»
14 years 3 months ago
Algebraic Query Optimization for Distributed Top-k Queries
: Distributed top-k query processing is increasingly becoming an essential functionality in a large number of emerging application classes. This paper addresses the efficient alge...
Thomas Neumann, Sebastian Michel