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The Forecast Of Champions' Achievement In London World Track And Field Championships Under GM (1,1) Model And Analysis Of Recent Developments

Posted on:2017-01-08Degree:MasterType:Thesis
Country:ChinaCandidate:X J WangFull Text:PDF
GTID:2207330488992050Subject:Physical Education and Training
Abstract/Summary:PDF Full Text Request
With the development of the society, the international cultural communication, make the track and field sports is widely spread and development of all over the world. Track and field sports is a comprehensive sports such as running, jumping, cast, especially in a large comprehensive international games, track and field sports accounted for the largest percentage of the total sport, so there is the saying of \"have to track and field is the world\", this shows the importance of track and field in a comprehensive sports meeting. The world athletics championships is a high-level track and field competition in track and field sports meeting, one of the stand or fall of its performance not only reaction to a certain extent the athletics level of a country, but also related to whether one country can get good grades in the world integrated games.In 2015 China successfully hosted the 15th world championships, the Chinese athletes to host role played well in the match, with successive results compared with the great progress. To better understand China’s athletes and prepare for the next world track and field championships, for the next world number one individual achievement is forecasted, development situation of different XiangQun has carried on the preliminary analysis:one is the use of literature, mathematical statistics and logical reasoning and the method of grey prediction, the top three in the 10th to the 15th of the average analysis world championships during this period, the objective development trend, and the development of the first grade coefficient under a value of each individual’s overall development trend. Second is the 10th to the 15th of each single item first performance for the raw data to establish multiple dimensions of gray prediction GM (1,1) model, and forecasting model of multiple dimension inspection, inspection and high precision is chosen as the final prediction model. Mainly to the following conclusion:(1) the world athletics championship in the first place of 16 results predict preliminary results are shown in table 4 to 11, table 4 to 12.(2) the man jump events, his overall performance in a downward trend, man except the discus throwing event, the rest are throwing event improvement, the development trend of women’s throwing project in addition to the shot put project performance decline, the rest of the throwing project performance improved, lead to the improvement of women’s sprint events middle-long-distance project fell.(3) proposed to men’s 20 km race walking, the women as the next shot MEDALS will seize the project, the men’s 4 x 100 m project as a key breakthrough of the development of the project. The men’s 110 m hurdles, the women’s 20 km race walking,10000 m,3000 m, hammer as compete for the medal power projects, the men’s high jump, long jump, the women’s javelin,1500 m, discus, marathon grew into superiority project.
Keywords/Search Tags:Track and field achievements, Grey prediction GM(1,1)model, Development trend
PDF Full Text Request
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