Jan Vrba

Mr. Jan Vrba

orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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30 August 2021 in Entropy
Verified
Journal Article
Open access
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JVJan Vrba
Jan Vrba
MCMatous Cejnek
Matous Cejnek
JSJakub Steinbach
Jakub Steinbach
ZKZuzana Krbcova
Zuzana Krbcova
This study proposes a fully automated gearbox fault diagnosis approach that does not require knowledge about the specific gearbox construction and its load. The proposed approach is based on evaluating an adaptive filter’s prediction error. The obtained prediction error’s standard deviation is further processed with a support-vector machine to classify the gearbox’s condition. The proposed method was cross-validated on a public dataset, segmented into 1760 test samples, against two other reference methods. The accuracy achieved by the proposed method was better than the accuracies of the reference methods. The accuracy of the proposed method was on average 9% higher compared to both reference methods for different support vector settings.

1 October 2021 in Journal of Computational Science
Verified
Journal Article
Open access
JVJan Vrba
Jan Vrba
CMCharlie Maslen
Charlie Maslen
JMJana Maxova
Jana Maxova
JDJan Duras
Jan Duras
IRIvan Rehor
Ivan Rehor
JMJan Mares
Jan Mares

11 April 2025 in Journal of Voice
Verified
Journal Article
Closed access
JVJan Vrba
Jan Vrba
JSJakub Steinbach
Jakub Steinbach
TJTomáš Jirsa
Tomáš Jirsa
Laura VerdeLaura Verde
Laura Verde
RFRoberta De Fazio
Roberta De Fazio
NHNoriyasu Homma
Noriyasu Homma

12 January 2020 in Entropy
Verified
Journal Article
Open access
PDF file
JVJan Vrba
Jan Vrba
JMJan Mareš
Jan Mareš
Recently, the concept of evaluating an unusually large learning effort of an adaptive system to detect novelties in the observed data was introduced. The present paper introduces a new measure of the learning effort of an adaptive system. The proposed method also uses adaptable parameters. Instead of a multi-scale enhanced approach, the generalized Pareto distribution is employed to estimate the probability of unusual updates, as well as for detecting novelties. This measure was successfully tested in various scenarios with (i) synthetic data, (ii) real time series datasets, and multiple adaptive filters and learning algorithms. The results of these experiments are presented.


31 October 2025 in IEEE Journal of Biomedical and Health Informatics
Verified
Journal Article
Open access
TZTianyu Zeng
Tianyu Zeng
YZYuwen Zeng
Yuwen Zeng
ZZZhang Zhang
Zhang Zhang
XZXiaoyong Zhang
Xiaoyong Zhang
KIKei Ichiji
Kei Ichiji
NHNoriyasu Homma
Noriyasu Homma
Early-stage breast cancer is often asymptomatic, highlighting the critical role of computer-aided diagnostic (CAD) systems in mammography screening. While radiologists often refer to bilateral symmetry to identify abnormalities, most existing CAD methods analyze unilateral views or require image registration, which limits their ability to model structural heterogeneity and often introduces distortion. To address this, we propose a registration-free, structure-aware diagnostic framework that integrates bilateral mammography with soft spatial prompting via Vision Transformers (ViT). By directly concatenating bilateral images and introducing a soft attention mask generated from a lightweight segmentation network, our approach enables end-to-end modeling of cross-breast structural differences without the need for region-of-interest extraction. Extensive evaluations on both public and clinical datasets demonstrate that our method consistently outperforms CNN and lightweight Transformer baselines, achieving up to 0.930 accuracy and 0.972 AUC. To our knowledge, this is the first framework to combine bilateral structural modeling and soft guidance in a unified, interpretable, and scalable ViT-based pipeline for breast cancer diagnosis.