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Publicações

Publicações por LIAAD

2019

A Data Visualization Approach for Intersection Analysis using AIS Data

Autores
Pereira, R; Abreu, P; Polisciuc, E; Machado, P;

Publicação
PROCEEDINGS OF THE 14TH INTERNATIONAL JOINT CONFERENCE ON COMPUTER VISION, IMAGING AND COMPUTER GRAPHICS THEORY AND APPLICATIONS - VOL 3: IVAPP

Abstract
Automatic Identification System data has been used in several studies with different directions like traffic forecasting, pollution control or anomalous behavior detection in vessels trajectories. Considering this last subject, the intersection between vessels is often related with abnormal behaviors, but this topic has not been exploited yet. In this paper an approach to assist the domain experts in the task of analyzing these intersections is introduced, based on data processing and visualization. The work was experimented with a proprietary dataset that covers the Portuguese maritime zone, containing an average of 6460 intersections by day. The results show that several intersections were only noticeable with the visualization strategies here proposed. Copyright

2019

Autonomous agents and multi-agent systems applied in healthcare

Autores
Montagna, S; Silva, DC; Abreu, PH; Ito, M; Schumacher, MI; Vargiu, E;

Publicação
ARTIFICIAL INTELLIGENCE IN MEDICINE

Abstract

2019

Denial of Service Attacks: Detecting the Frailties of Machine Learning Algorithms in the Classification Process

Autores
Frazao, I; Abreu, PH; Cruz, T; Araújo, H; Simoes, P;

Publicação
CRITICAL INFORMATION INFRASTRUCTURES SECURITY (CRITIS 2018)

Abstract
Denial of Service attacks, which have become commonplace on the Information and Communications Technologies domain, constitute a class of threats whose main objective is to degrade or disable a service or functionality on a target. The increasing reliance of Cyber-Physical Systems upon these technologies, together with their progressive interconnection with other infrastructure and/or organizational domains, has contributed to increase their exposure to these attacks, with potentially catastrophic consequences. Despite the potential impact of such attacks, the lack of generality regarding the related works in the attack prevention and detection fields has prevented its application in real-world scenarios. This paper aims at reducing that effect by analyzing the behavior of classification algorithms with different dataset characteristics. © 2019, Springer Nature Switzerland AG.

2019

Generating Synthetic Missing Data: A Review by Missing Mechanism

Autores
Santos, MS; Pereira, RC; Costa, AF; Soares, JP; Santos, JAM; Abreu, PH;

Publicação
IEEE Access

Abstract

2019

Cyber-security Modbus ICS dataset

Autores
Frazão, I; Abreu, PH; Cruz, T; Araújo, H; Simões, P;

Publicação

Abstract

2019

A Data Visualization Approach for Intersection Analysis using AIS Data

Autores
Pereira, RC; Abreu, PH; Polisciuc, E; Machado, P;

Publicação
Proceedings of the 14th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications, VISIGRAPP 2019, Volume 3: IVAPP, Prague, Czech Republic, February 25-27, 2019.

Abstract

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