Title :
Unsupervised adaptive optimization of motion-sensitive systems guided by measurement uncertainty
Author :
Jurica, Peter ; Gepshtein, Sergei ; Tyukin, Ivan ; Prokhorov, Danil ; Van Leeuwen, Cees
Author_Institution :
RIKEN Brain Sci. Inst., Saitama
Abstract :
We propose a design for adaptive optimization of sensory systems. We consider a network of sensors that measure stimulus parameters as well as the uncertainties associated with these measurements. No prior assumptions about the stimulation and measurement uncertainties are built into the system, and properties of stimulation are allowed to vary with time. We present two approaches: one is based on estimation of the local gradient of uncertainty, and the other on random adjustment of cell tuning. Either approach steers the network towards its optimal state.
Keywords :
adaptive estimation; measurement uncertainty; optimisation; parameter estimation; sensors; cell tuning; local gradient of uncertainty estimation; measurement uncertainty; motion-sensitive systems; sensor network; sensory systems; unsupervised adaptive optimization; Biomedical optical imaging; Biosensors; Mathematics; Measurement uncertainty; Motion measurement; Optical network units; Optical sensors; Statistics; Time varying systems; Tuning;
Conference_Titel :
Intelligent Sensors, Sensor Networks and Information, 2007. ISSNIP 2007. 3rd International Conference on
Conference_Location :
Melbourne, Qld.
Print_ISBN :
978-1-4244-1501-4
Electronic_ISBN :
978-1-4244-1502-1
DOI :
10.1109/ISSNIP.2007.4496840