论文标题
使用全历史等级估算攀岩路线难度
Estimation of Climbing Route Difficulty using Whole-History Rating
论文作者
论文摘要
现有的攀岩路线分级系统根据几个人的意见为一条路线分配了困难等级。通过将整个历史评级（WHR）系统调整为攀岩，可以在间隔尺度上估算路线难度的客观方法。 WHR的模型已安装在用户在既定的攀岩网站上记录的236,095个上升的数据库中。数据集中使用的上升幅度中有73％被归类为成功。预测平均准确85％，交叉验证10倍。结果表明，经验评级系统在评估路线难度方面是准确的，并且可用于修改常规路线等级。
Existing grading systems for rock climbing routes assign a difficulty grade to a route based on the opinions of a few people. An objective approach to estimating route difficulty on an interval scale was obtained by adapting the Whole-History Rating (WHR) system to rock climbing. WHR's model was fitted to a database of 236,095 ascents recorded by users on an established climbing website. 73% of the ascents used in the dataset were classified as successful. Predictions were on average 85% accurate with 10-fold cross-validation. The results suggest that an empirical rating system is accurate at assessing route difficulty and is viable for revising conventional route grades.
