Agapi Davradou

Ms. Agapi Davradou

National Technical University of Athens, Athens, Attikí, Greece
orcid

Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

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

Representative Publications

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23 September 2022
Verified
Book Chapter
Closed access
PDF file
IKIason Katsamenis
Iason Katsamenis
EKEleni Eirini Karolou
Eleni Eirini Karolou
ADAgapi Davradou
Agapi Davradou
Eftychios ProtopapadakisEftychios Protopapadakis
Eftychios Protopapadakis
Anastasios DoulamisAnastasios Doulamis
Anastasios Doulamis
Dimitris K KalogerasDimitris K Kalogeras
Dimitris K Kalogeras

1 October 2022 in Diagnostics
Verified
Journal Article
Open access
PDF file
ITIoannis N. Tzortzis
Ioannis N. Tzortzis
ADAgapi Davradou
Agapi Davradou
IRIoannis Rallis
Ioannis Rallis
Maria KaselimiMaria Kaselimi
Maria Kaselimi
Konstantinos MakantasisKonstantinos Makantasis
Konstantinos Makantasis
NDNikolaos Doulamis
Nikolaos Doulamis
In this study, we propose a tensor-based learning model to efficiently detect abnormalities on digital mammograms. Due to the fact that the availability of medical data is limited and often restricted by GDPR (general data protection regulation) compliance, the need for more sophisticated and less data-hungry approaches is urgent. Accordingly, our proposed artificial intelligence framework utilizes the canonical polyadic decomposition to decrease the trainable parameters of the wrapped Rank-R FNN model, leading to efficient learning using small amounts of data. Our model was evaluated on the open source digital mammographic database INBreast and compared with state-of-the-art models in this domain. The experimental results show that the proposed solution performs well in comparison with the other deep learning models, such as AlexNet and SqueezeNet, achieving 90% ± 4% accuracy and an F1 score of 84% ± 5%. Additionally, our framework tends to attain more robust performance with small numbers of data and is computationally lighter for inference purposes, due to the small number of trainable parameters.

17 May 2022 in Technologies
Verified
Journal Article
Open access
PDF file
NBNikolaos Bakalos
Nikolaos Bakalos
Maria KaselimiMaria Kaselimi
Maria Kaselimi
NDNikolaos Doulamis
Nikolaos Doulamis
Anastasios DoulamisAnastasios Doulamis
Anastasios Doulamis
Dimitris K KalogerasDimitris K Kalogeras
Dimitris K Kalogeras
LRLuca Rossi
Luca Rossi
This paper presents the components and integrated outcome of a system that aims to achieve early detection, monitoring and mitigation of pandemic outbreaks. The architecture of the platform aims at providing a number of pandemic-response-related services, on a modular basis, that allows for the easy customization of the platform to address user’s needs per case. This customization is achieved through its ability to deploy only the necessary, loosely coupled services and tools for each case, and by providing a common authentication, data storage and data exchange infrastructure. This way, the platform can provide the necessary services without the burden of additional services that are not of use in the current deployment (e.g., predictive models for pathogens that are not endemic to the deployment area). All the decisions taken for the communication and integration of the tools that compose the platform adhere to this basic principle. The tools presented here as well as their integration is part of the project STAMINA.

23 September 2022
Verified
Book Chapter
Closed access
PDF file
IKIason Katsamenis
Iason Katsamenis
ADAgapi Davradou
Agapi Davradou
EKEleni Eirini Karolou
Eleni Eirini Karolou
Eftychios ProtopapadakisEftychios Protopapadakis
Eftychios Protopapadakis
Anastasios DoulamisAnastasios Doulamis
Anastasios Doulamis
Dimitris K KalogerasDimitris K Kalogeras
Dimitris K Kalogeras

24 May 2022 in arXiv
Verified
Preprint
Open access
PDF file
IKIason Katsamenis
Iason Katsamenis
EKEleni Eirini Karolou
Eleni Eirini Karolou
ADAgapi Davradou
Agapi Davradou
Eftychios ProtopapadakisEftychios Protopapadakis
Eftychios Protopapadakis
ADAnastasios Doulamis
Anastasios Doulamis
Dimitris K KalogerasDimitris K Kalogeras
Dimitris K Kalogeras
Substantial progress has been made in the field of object detection in road scenes. However, it is mainly focused on vehicles and pedestrians. To this end, we investigate traffic cone detection, an object category crucial for road effects and maintenance. In this work, the YOLOv5 algorithm is employed, in order to find a solution for the efficient and fast detection of traffic cones. The YOLOv5 can achieve a high detection accuracy with the score of IoU up to 91.31%. The proposed method is been applied to an RGB roadwork image dataset, collected from various sources.

20 September 2022 in arXiv
Verified
Preprint
Open access
PDF file
ADAgapi Davradou
Agapi Davradou
Eftychios ProtopapadakisEftychios Protopapadakis
Eftychios Protopapadakis
Maria KaselimiMaria Kaselimi
Maria Kaselimi
ADAnastasios Doulamis
Anastasios Doulamis
NDNikolaos Doulamis
Nikolaos Doulamis
Diabetic foot ulcers (DFUs) constitute a serious complication for people with diabetes. The care of DFU patients can be substantially improved through self-management, in order to achieve early-diagnosis, ulcer prevention, and complications management in existing ulcers. In this paper, we investigate two categories of image-to-image translation techniques (ItITT), which will support decision making and monitoring of diabetic foot ulcers: noise reduction and super-resolution. In the former case, we investigated the capabilities on noise removal, for convolutional neural network stacked-autoencoders (CNN-SAE). CNN-SAE was tested on RGB images, induced with Gaussian noise. The latter scenario involves the deployment of four deep learning super-resolution models. The performance of all models, for both scenarios, was evaluated in terms of execution time and perceived quality. Results indicate that applied techniques consist a viable and easy to implement alternative that should be used by any system designed for DFU monitoring.