JOURNAL BROWSE
Search
Advanced SearchSearch Tips
The estimation of winning rate in Korean professional baseball league
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
The estimation of winning rate in Korean professional baseball league
Kim, Soon-Kwi; Lee, Young-Hoon;
  PDF(new window)
 Abstract
In this paper, we provide a suitable optimal exponent in the generalized Pythagorean theorem and propose to use the logistic model & the probit model to estimate the winning rate in Korean professional baseball league. Under a criterion of root-mean-square-error (RMSE), the efficiencies of the proposed models have been compared with those of the Pythagorean theorem. We use the team historic win-loss records of Korean professional baseball league from 1982 to the first half of 2015, and the proposed methods show slight outperformances over the generalized Pythagorean method under the criterion of RMSE.
 Keywords
Cluster analysis;generalized Pythagorean theorem;logistic model;probit model;
 Language
Korean
 Cited by
 References
1.
Cho, Y. S. and Cho, Y. J. (2005). A study on winning percentage using batter's runs and pitcher's runs in Korean professional baseball league. Journal of the Korean Data Analysis Society, 7, 2303-2312.

2.
Hosmer, D. W. and Lemeshow, S. (2000). Applied logistic regression, 2nd ed., Wiley, New York.

3.
Huh, M. H. (2000). Multivariate data analysis, Freedom Academy, Seoul.

4.
James, B. (1982). The Bill James baseball abstract, Ballantine Books, New York.

5.
Kim, K. Y. and Jhun, M. S. (1994). SAS cluster analysis, Freedom Academy, Seoul.

6.
Kim, S. K. (2014). Understanding of logistic regression model, Kyowoosa, Seoul.

7.
Lee, J. T. (2014). Estimation of exponent value for Pythagorean method in Korean pro-baseball. Journal of the Korean Data & Information Science Society, 25, 493-499. crossref(new window)

8.
Lee, J. T. (2015). Measuring the accuracy of the Pythagorean theorem in Korean pro-baseball. Journal of the Korean Data & Information Science Society, 26, 653-659. crossref(new window)

9.
Lee, J. T. and Kim, Y. T. (2006). A study on the estimation of winning percentage in Korean pro-baseball. Journal of the Korean Data Analysis Society, 8, 857-869.