Which "mean" to use and when? - Cross Validated
So we have arithmetic mean (AM), geometric mean (GM) and harmonic mean (HM). Their mathematical formulation is also well known along with their associated stereotypical …
均值 (mean)和平均值 (average)的区别？ - 知乎
均值 (mean)是对恒定的真实值进行测量后，把测量偏离于真实值的所有值进行平均所得的结果； 平均值 (average)直接对一系列具有内部差异的数值进行的测量值进行的平均结果。均值是“ 观 …
How do I interpret mean absolute error (MAE) or mean absolute ...
Apr 29, 2020 · For example, I am predicting a score that can have value from 0 to 100. Lets assume MAPE = 10 for one case. In other case MAE = 10. How can I interpret it in layman …
损失函数｜交叉熵损失函数
1.2 Mean Squared Error (均方误差) 均方误差损失也是一种比较常见的损失函数，其定义为： 模型1： 对所有样本的loss求平均： 模型2： 对所有样本的loss求平均： 我们发现，MSE能够判断 …
What is implied by standard deviation being much larger than the …
What does it imply for standard deviation being more than twice the mean? Our data is timing data from event durations and so strictly positive. (Sometimes very small negatives show up …
How to read scientific notation output (numbers that include "e")?
Dec 20, 2017 · What does the notation like 8.6e-28 mean? What is the 'e' for? (2 answers) Closed 7 years ago. After running the lm regression model using R, sometime one is bound to get …
Mean absolute deviation vs. standard deviation - Cross Validated
Jan 13, 2014 · After calculating the "sum of absolute deviations" or the "square root of the sum of squared deviations", you average them to get the "mean deviation" and the "standard …
用imagej 免疫组化及荧光强度的分析？ - 知乎
用Image J定量分析免疫组化图以及荧光强度方法有很多种，分享比较简单的步骤。 Image J软件安装 顶级图像分析工具，ImageJ、Fiji、Image pro plus，一次帮你搞定全部！ 1、用Image J测 …
深度学习的loss一般收敛到多少？ - 知乎
看题主的意思，应该是想问，如果用训练过程当中的loss值作为衡量深度学习模型性能的指标的话，当这个指标下降到多少时才能说明模型达到了一个较好的性能，也就是将loss作为一 …
mean - "Averaging" variances - Cross Validated
May 6, 2017 · I need to obtain some sort of "average" among a list of variances, but have trouble coming up with a reasonable solution. There is an interesting discussion about the differences …
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