Dynamic grid self-organizing map for clustering of visual evoked potential single trials

Maria Stavrinou, Stergios Papadimitriou, Anastasios Bezerianos, P. Papathanasopottlos

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The paper develops a novel learning model of clustering for Evoked Potential Single Trials, called Dynamic Grid Self- Organized Map (DG-SOM) designed according to the peculiarities of evoked potential data. The DG-SOM determines adaptively the number of clusters with a dynamic extension process which is able to exploit class information whenever exists. Specifically, it accepts available class information to control a dynamical extension process with an entropy criterion. In the case that there is no classification available, a similar dynamical extension is controlled with criteria based on the computation of local variances or resource counts. The results indicate that dynamic expansion can reveal (to a large extent) The many possible routes each of which leads from the input to the final "compulation". We employ these techniques in order to discriminate patterns from evoked potentials single trial data between alcoholic and non-alcoholic patients. From the classes provided, characteristic patterns for each class are extracted which can be valuable in studying the underlying brain dynamics.

Original languageEnglish (US)
Title of host publication2002 14th International Conference on Digital Signal Processing Proceedings, DSP 2002
EditorsA.N. Skodras, A.G. Constantinides
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1125-1128
Number of pages4
ISBN (Electronic)0780375033
DOIs
StatePublished - Jan 1 2002
Event14th International Conference on Digital Signal Processing, DSP 2002 - Santorini, Hellas, Greece
Duration: Jul 1 2002Jul 3 2002

Publication series

NameInternational Conference on Digital Signal Processing, DSP
Volume2

Other

Other14th International Conference on Digital Signal Processing, DSP 2002
CountryGreece
CitySantorini, Hellas
Period7/1/027/3/02

ASJC Scopus subject areas

  • Signal Processing

Fingerprint Dive into the research topics of 'Dynamic grid self-organizing map for clustering of visual evoked potential single trials'. Together they form a unique fingerprint.

  • Cite this

    Stavrinou, M., Papadimitriou, S., Bezerianos, A., & Papathanasopottlos, P. (2002). Dynamic grid self-organizing map for clustering of visual evoked potential single trials. In A. N. Skodras, & A. G. Constantinides (Eds.), 2002 14th International Conference on Digital Signal Processing Proceedings, DSP 2002 (pp. 1125-1128). [1028290] (International Conference on Digital Signal Processing, DSP; Vol. 2). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICDSP.2002.1028290