JRM Vol.3 No.2 pp. 124-127
doi: 10.20965/jrm.1991.p0124

Development Report:

Symbol Encoding Method of Time Series Data and Markov Model

Takafumi Katayama*, Eiji Suzuki* and Masao Saito**

* Dept. of Electronic Engineering, Kogakuin Univ.

** Institute of Medical Electronics, Univ. of Tokyo

April 20, 1991
A symbol encoding method is proposed for the purpose of data classification. The parameters of a sample are obtained by linear prediction analysis. Log likelihood ratios are computed between the parameters of a sample and several templates. A sample is classified to the template distance, and then the parameters of the template is modified. A symbol (e.g. an alphabetic character) is assigned to each template. The whole time series data are encoded into the stream of symbols. A Markov model which produced the same symbol series is constructed. A model parameter is represented as a structure of the time series data.
Cite this article as:
T. Katayama, E. Suzuki, and M. Saito, “Symbol Encoding Method of Time Series Data and Markov Model,” J. Robot. Mechatron., Vol.3 No.2, pp. 124-127, 1991.
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Last updated on Jun. 03, 2024