Questions tagged [hinge-loss]

For questions about the hinge loss, which is typically used for "maximum-margin" classification, most notably for support vector machines (SVMs).

4 questions
7
votes
2 answers

How should we interpret this figure that relates the perceptron criterion and the hinge loss?

I am currently studying the textbook Neural Networks and Deep Learning by Charu C. Aggarwal. Chapter 1.2.1.2 Relationship with Support Vector Machines says the following: The perceptron criterion is a shifted version of the hinge-loss used in…
2
votes
1 answer

What is the definition of the hinge loss function?

I came across the hinge loss function for training a neural network model, but I did not know the analytical form for the same. I can write the mean squared error loss function (which is more often used for regression) as $$\sum\limits_{i=1}^{N}(y_i…
1
vote
1 answer

What is the definition of the "cost" function in the SVM's objective function?

In a course that I am attending, the cost function of a support vector machine is given by $$J(\theta)=\sum_{i=1}^{m} y^{(i)} \operatorname{cost}_{1}\left(\theta^{T} x^{(i)}\right)+\left(1-y^{(i)}\right) \operatorname{cost}_{0}\left(\theta^{T}…
0
votes
0 answers

Choosing an appropriate loss function for sparse label proportion estimation

I'm working over a task of estimating sparse label proportions, where the target is probability distribution $\textbf{q} \in \Delta^{K-1}$ and $\Delta^{K-1} := \{\textbf{p} \in \mathbb{R}^K \, | \, p_1 + \dots + p_K = 1 \}$ and the support is…