Research Article

An Improved Prediction Model Combining Inverse Exponential Smoothing and Markov Chain

Table 3

Fitting values of model I and model II.

YearActual valueModel IAbsolute errorRelative error (%)Model IIAbsolute errorRelative error (%)

19901875.57
19911989.421851.00138.426.961444.22545.2027.40
19922130.221958.14172.088.081704.37425.8519.99
19932645.632164.25481.3818.202112.12533.5120.17
19942833.002825.127.880.282774.1958.812.08
19953273.123160.86112.263.433238.3234.801.06
19963588.353668.4680.112.233799.97211.625.90
19974354.924042.42312.507.184115.12239.805.51
19985106.194899.57206.624.054979.33126.862.48
19996274.995825.04449.957.175885.66389.336.20
20006469.727207.07737.3511.407094.16624.449.65
20017029.457458.92429.476.117382.91353.465.03
20027216.667833.70617.048.557724.44507.787.04
20037739.667837.4697.801.267685.5954.070.70
20049648.668200.851447.8115.018307.231341.4313.90
200510350.3010365.2714.970.1410533.85183.551.77
200611019.1011456.27437.173.9711537.29518.194.70
200711904.2012113.08208.881.7512087.04182.841.54
200815175.6012912.672262.9314.9113167.582008.0213.23
200919932.9016628.873304.0316.5816945.342987.5614.99
201021456.0022717.921261.925.8823371.581915.588.93
201123733.8025095.921362.125.7425232.821499.026.32
201225730.6027141.581410.985.4827004.241273.644.95