Search Results for author: Hyeongji Kim

Found 5 papers, 3 papers with code

Inspecting class hierarchies in classification-based metric learning models

1 code implementation26 Jan 2023 Hyeongji Kim, Pekka Parviainen, Terje Berge, Ketil Malde

In addition to the standard classification accuracy, we evaluate the hierarchical inference performance by inspecting learned class representatives and the hierarchy-informed performance, i. e., the classification performance, and the metric learning performance by considering predefined hierarchical structures.

Classification Metric Learning

Distance-Ratio-Based Formulation for Metric Learning

1 code implementation21 Jan 2022 Hyeongji Kim, Pekka Parviainen, Ketil Malde

We propose a distance-ratio-based (DR) formulation for metric learning.

Metric Learning

Proper Measure for Adversarial Robustness

no code implementations28 Sep 2020 Hyeongji Kim, Ketil Malde

In order to handle the problems of the standard adversarial accuracy, we introduce a new measure for the robustness of classifiers called genuine adversarial accuracy.

Adversarial Robustness

Measuring Adversarial Robustness using a Voronoi-Epsilon Adversary

1 code implementation6 May 2020 Hyeongji Kim, Pekka Parviainen, Ketil Malde

As a result, adversarial accuracy based on this adversary avoids a tradeoff between accuracy and adversarial accuracy on training data even when $\epsilon$ is large.

Adversarial Robustness

Beyond image classification: zooplankton identification with deep vector space embeddings

no code implementations25 Sep 2019 Ketil Malde, Hyeongji Kim

For practical cases in ecology as well as in many other fields this is not the case, and we argue that the vector embedding method presented here is a more appropriate approach.

General Classification Image Classification

Cannot find the paper you are looking for? You can Submit a new open access paper.