Title :
Adaptive discrete stochastic optimization algorithm for learning Nernst potential in nerve cell membrane ion channels
Author :
Krishnamurthy, Vikram ; Chung, Shin-Ho
Author_Institution :
Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC, Canada
Abstract :
We present discrete stochastic optimization algorithms that adaptively learn the Nernst potential in membrane ion channels. The proposed algorithms dynamically control both the ion channel experiment and the resulting hidden Markov model (HMM) signal processor and can adapt to the time-varying behaviour of ion channels. One of the most important properties of the proposed algorithms are their self-learning capability - they spends most of the computational effort at the global optimizer (Nernst potential).
Keywords :
bioelectric potentials; biomembrane transport; hidden Markov models; medical signal processing; optimisation; unsupervised learning; HMM signal processing methods; adaptive Nernst potential learning; adaptive discrete stochastic optimization algorithm; global optimizer; hidden Markov model; ion channel experiment dynamic control; ion channel time-varying behaviour; nerve cell membrane ion channels; self-learning algorithms; Biomembranes; Biophysics; Cells (biology); Clamps; Current measurement; Hidden Markov models; Physics computing; Signal processing algorithms; Stochastic processes; Voltage control;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on
Print_ISBN :
0-7803-8484-9
DOI :
10.1109/ICASSP.2004.1327180