Vector Symbol Method for Time Series Data
Mingquan Chen · Journal of Chinese Computer Systems · 2008
A new method named as VSB(Vector Symbol) based on SAX[8] has been put forwarded in order to overcome some bug of SAX.It transforms original symbol into a symbol vector with three components by means of importing two extremum such as maximum and minimum.The symbol value could be finally confirmed by summation of weighting components.Since VSB can provide more information about Time series data than SAX, it could get more exact result in Time series analysis than SAX do, which has been attested from A lot of experiments.