Title :
Spike sorting with support vector machines
Author :
Vogelstein, R. Jacob ; Murari, Kartikeya ; Thakur, Pramodsingh H. ; Diehl, Chris ; Chakrabartty, Shantanu ; Cauwenberghs, Gert
Author_Institution :
Dept. of Biomedical Eng., Johns Hopkins Univ., Baltimore, MD, USA
Abstract :
Spike sorting of neural data from single electrode recordings is a hard problem in machine learning that relies on significant input by human experts. We approach the task of learning to detect and classify spike waveforms in additive noise using two stages of large margin kernel classification and probability regression. Controlled numerical experiments using spike and noise data extracted from neural recordings indicate significant improvements in detection and classification accuracy over linear amplitude- and template-based spike sorting techniques.
Keywords :
bioelectric phenomena; electrodes; learning (artificial intelligence); medical signal detection; medical signal processing; neurophysiology; signal classification; support vector machines; additive noise; linear amplitude-based spike sorting; machine learning; neural recordings; single electrode recordings; spike sorting; spike waveform classification; spike waveform detection; support vector machines; template-based spike sorting; Additive noise; Data mining; Electrodes; Humans; Kernel; Machine learning; Noise level; Sorting; Support vector machine classification; Support vector machines;
Conference_Titel :
Engineering in Medicine and Biology Society, 2004. IEMBS '04. 26th Annual International Conference of the IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-8439-3
DOI :
10.1109/IEMBS.2004.1403215