4
边缘情况下精度和召回率的正确值是多少?
精度定义为: p = true positives / (true positives + false positives) 对不对,作为true positives和false positives做法0,精度接近1? 召回相同的问题: r = true positives / (true positives + false negatives) 我目前正在实施统计测试,需要计算这些值,有时分母为0,我想知道在这种情况下应返回哪个值。 PS:请原谅,不恰当的标签,我想用recall,precision和limit,但我不能创造新的标签呢。
20
precision-recall
data-visualization
logarithm
references
r
networks
data-visualization
standard-deviation
probability
binomial
negative-binomial
r
categorical-data
aggregation
plyr
survival
python
regression
r
t-test
bayesian
logistic
data-transformation
confidence-interval
t-test
interpretation
distributions
data-visualization
pca
genetics
r
finance
maximum
probability
standard-deviation
probability
r
information-theory
references
computational-statistics
computing
references
engineering-statistics
t-test
hypothesis-testing
independence
definition
r
censoring
negative-binomial
poisson-distribution
variance
mixed-model
correlation
intraclass-correlation
aggregation
interpretation
effect-size
hypothesis-testing
goodness-of-fit
normality-assumption
small-sample
distributions
regression
normality-assumption
t-test
anova
confidence-interval
z-statistic
finance
hypothesis-testing
mean
model-selection
information-geometry
bayesian
frequentist
terminology
type-i-and-ii-errors
cross-validation
smoothing
splines
data-transformation
normality-assumption
variance-stabilizing
r
spss
stata
python
correlation
logistic
logit
link-function
regression
predictor
pca
factor-analysis
r
bayesian
maximum-likelihood
mcmc
conditional-probability
statistical-significance
chi-squared
proportion
estimation
error
shrinkage
application
steins-phenomenon