# Questions tagged [roc-auc]

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### How to calculate sensitivity and specificity given AUC score?

I couldn't find any relevant information on how to calculate sensitivity and specificity with AUC score. There is one picture that presents what I want, however I wasn't able to interpret it for my ...
21 views

### How can I calculate and draw an average AUC?

I am working on a face verification problem, for 100 persons. I need to calculate the verification performance. The input to the Matlab function is the similarity scores and true labels, and the ...
11 views

### How to compute an AUROC score using the Mahalanobis distance?

I was reading this paper: A Simple Unified Framework for Detecting Out-of-Distribution Samples and Adversarial Attacks. The core idea is, given a test sample $x$, and a set of classes $C$, to compute ...
27 views

### Is it normal that we get different AUC results after running with various seeds?

We are working on optimizing a CNN made for binary image classification (by that I mean to classify each image to group A or group B). It is based on InceptionV3, using PyTorch. We saw that choosing ...
5 views

### Evaluating a CNN -multi class model with two separate thresholds

I have a model that outputs three classes. But here instead of one threshold, it depends on a combination of two (user input threshold). One threshold varies from 0.1 to 1.0 and the other varies from ...
12 views

### Evaluation metric for time-series anomaly detection

My dataset is time-series sensor data and anomaly ratio is between 5% and 6% 1. For time-series anomaly detection evaluation, which one is better, precision/recall/F1 or ROC-AUC ? When empirically ...
My attempt to solve the problem below: \text{cost function} = C = (TP \cdot CTP) + (FN \cdot CFN) + (FP \cdot CFP) + (TN \cdot CTN) = ((1 - (1 - FP)^2) \cdot 1000) + (FN \cdot CFN) + (FP \cdot ...