直接使用的话用sklearn.metrics.cohen_kappa_score即可,如果涉及到不同类比存在程度递进关系的(比如一个疾病的不同等级),可以设置weights参数为“Quadratic”即可。 详细说明版: 简单来说,kappa指标是为了去除机遇因素(随机因素)影响后,判断两个医生、或者两种方法之间真实的一致性程度,也就是可复现的程度。 具体的背...
# 需要導入模塊: from sklearn import metrics [as 別名]# 或者: from sklearn.metrics importcohen_kappa_score[as 別名]deftoy_cohens_kappa():# rater1 = [1, 1, 1, 0]# rater2 = [1, 1, 0, 0]# rater3 = [0, 1, 1]rater1 = ['s','s','s','g','u'] rater2 = ['s','s...
Annotator_b 用标签 b 和 c 标记文档 1。我尝试使用以下方法计算注释者协议:cohen_kappa_score(annotator_a, annotator_b)但这会导致错误:ValueError: You appear to be using a legacy multi-label data representation. Sequence of sequences are no longer supported; use a binary array or sparse matrix i...
The weighted kappa coefficient is 0.57 and the asymptotic 95% confidence interval is (0.44, 0.70). This indicates that the amount of agreement between the two radiologists is modest (and not as strong as the researchers had hoped it would be). 加权kappa系数为0.57,渐近95%置信区间为(0.44,0.70...
cohen_kappa_score assumes that the data is going to have multiple labels, although most time's that is the case for training a classifier that may not always be the case for testing, like for example if you are just evaluating a classifi...
Kappa系数用于一致性检验，也可以用于衡量分类精度，但kappa系数的计算是基于混淆矩阵的. kappa系数是一...
The metabolic pattern, indexed by blood pressure, blood glucose, uric acid, serum triglycerides, HDL- and LDL-cholesterol was summarized in a haemodynamic-metabolic score (HMS). Association of HMS with age, anthropometric variables (skinfold thicknesses, girth lengths) and degree of overweight (...
(classify, y_pred))).reshape(y_true.shape) return 'cappa', cohen_kappa_score...kappa来说,他们都错了,错的程度一样,这显然不符合常识,而加权kappa可以说明A预测的错误更大,这样更符合常识,博客中也说了对于一些有序关系的级别得分,可见加权kappa适用于有序的关系,并不是说加权...kappa和普通kappa就...
Cohen’s kappa(Jacob Cohen 1960,J Cohen (1968))is used to measure the agreement of two raters (i.e., “judges”, “observers”) or methods rating on categorical scales. This process of measuring the extent to which two raters assign the same categories or score to the same subject is ...
Evaluating Cohen’s Kappa The value for kappa can be less than 0 (negative). A score of 0 means that there is random agreement among raters, whereas a score of 1 means that there is a complete agreement between the raters. Therefore, a score that is less than 0 means that there is ...