50、机器学习教育中的多维度探索:从注视数据分析到游戏化应用

机器学习教育中的多维度探索:从注视数据分析到游戏化应用

1. 注视数据分析在VIMS评估中的应用

1.1 休息时注视数据结果

在休息状态下,通过机器学习获得的学习模型评估结果显示出一定的规律。使用非接触式注视测量设备,对DS驾驶前后的休息注视进行测量。在DS运行前,使用注视数据验证学习模型的评估指标中,平均准确率为54.43%,平均精度为41.80%。而DS运行后的评估指标显示,平均准确率、精度、召回率和F分数均超过70%。在有VIMS的组中,仅使用该组的注视数据验证学习模型时,平均准确率、精度、召回率和F分数也超过70%。具体数据如下表所示:

状态 无VIMS 有VIMS
准确率 精度 召回率 F分数 准确率 精度 召回率 F分数
运行前 54.43% 41.80% 61.25% 64.62%

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nn.output = 'softmax'; % use softmax outputopts.numepochs = 5; % Number of full sweeps through dataopts.batchsize = 1000; % Take a mean gradient step over this many samplesopts.plot = 1; % enable plottingnn = nntrain(nn, tx, ty, opts, vx, vy); % nntrain takes validation set as last two arguments (optionally)[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.1, 'Too big error');```[![Bitdeli Badge](https://d2weczhvl823v0.cloudfront.net/rasmusbergpalm/deeplearntoolbox/trend.png)](https://bitdeli.com/free "Bitdeli Badge")

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