Title of article :
Predicting 2014 Asian Games records in swimming events by the Gray model
Author/Authors :
Hemmatinezhad، Mehr Ali نويسنده Associate professor of University of Guilan , , Khodayari، Abbas نويسنده Karaj Branch, Islamic Azad University, Karaj, Iran , , Roshanzamir، P نويسنده Karaj Branch, Islamic Azad University, Karaj, Iran , , hemmatinezhad، Mohammad نويسنده Guilan University, Rasht, Iran hemmatinezhad, Mohammad
Issue Information :
روزنامه با شماره پیاپی 0 سال 2011
Abstract :
ABSTRACT: The aim of this study is predicting 2014 Asian Games records in swimming events by the gray model. This is research was descriptive study. The statistical research was the results of in 16 Asian Games swimming competitions from 1951 to 2010 and according to research aim the number of data has been at least recent 4 Asian Games records in swimming. In this study, events other than the 50m backstroke, 50m breast stroke and 50 m butterfly, swimming at the rest 17 events Asian Games in 2014 were among the study sample, and for them the record has been predicting. Research tools has been reading, viewing documents and databases using the site FINA, articles, magazines, newspapers and books .To report the research findings, first have used descriptive statistics in tables and graphs. Grey model was used to predicting the records, in this respect, the predictions for each of the men and women to swim through the model parameters are calculated. To test the model and the Predicting accuracy of the index theorem Chebishev with the tracking signal (TS) represents predicting errors in the prediction model is used to being under control. Research findings show that among 20 events of the 2014 Asian Games in swimming for 17 events gray model predicted there is expected to record and all these records have been predicted by the first scale, they all were manageable and predictable errors. Having regard to the provision of records and records is accurately predicted and controlled in this study and similar research confirms the reliability of predictive models is gray.
Journal title :
International Journal of Sport Studies
Journal title :
International Journal of Sport Studies