It is of great significance to predict the results accurately based on the statistics of sports competition for participants research, commercial cooperation, advertising, and gambling profit. Aiming at the phenomenon that the PageRank page sorting algorithm is prone to subject deviation, the category similarity between pages is introduced into the PageRank algorithm. In the PR value calculation formula of the PageRank algorithm, the factor W(u, v) between pages is added to replace the original Nu (the number of links to page u). In this way, the content category between pages is considered, and the shortcoming of theme deviation will be improved. The time feedback factor in the PageRank-time algorithm is used for reference, and the time feedback factor is added to the first improved PR value calculation formula. Based on statistics from 1230 games during the NBA 2018-2019 regular season, this paper ranks the team strength with improved PageRank algorithm and compares the results with the ranking of regular-season points and the result of playoffs. The results show that it is consistent with the regular-season points ranking in the eastern division by the use of improved PageRank algorithm, but there is a difference in the second ranking in the western division. In the prediction of top four in playoffs, it predicts three of the four teams.

中文翻译：

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基于改进的PageRank算法的NBA季后赛排名预测

根据体育比赛的统计数据准确预测结果对参与者研究，商业合作，广告和赌博利润具有重要意义。针对PageRank页面排序算法容易出现主题偏差的现象，将页面之间的类别相似度引入PageRank算法中。在PageRank算法的PR值计算公式中，添加了页面之间的因子W（u，v）来替换原始Nu（指向页面u的链接数）。这样，可以考虑页面之间的内容类别，并且可以改善主题偏差的缺点。将PageRank-time算法中的时间反馈因子用作参考，并将时间反馈因子添加到第一个改进的PR值计算公式中。根据NBA 2018-2019常规赛期间1230场比赛的统计数据，本文使用改进的PageRank算法对球队实力进行排名，并将结果与​​常规赛得分排名和季后赛结果进行比较。结果表明，采用改进的PageRank算法与东部分区常规赛得分排名相吻合，但西部分区第二排名却有所不同。在预测季后赛前四名时，它会预测四支球队中的三支。结果表明，采用改进的PageRank算法与东部分区常规赛得分排名相吻合，但西部分区第二排名却有所不同。在预测季后赛前四名时，它会预测四支球队中的三支。结果表明，采用改进的PageRank算法与东部分区常规赛得分排名相吻合，但西部分区第二排名却有所不同。在预测季后赛前四名时，它会预测四支球队中的三支。