Ovidiu Bica

Dr. Ovidiu Bica


Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

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

Representative Publications

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4 April 2025 in Sensors
Verified
Journal Article
Open access
PDF file
MIMarilena Ianculescu
Marilena Ianculescu
VCVictor Stefan Constantin
Victor Stefan Constantin
AGAndreea Maria Gusatu
Andreea Maria Gusatu
CPCristian Petrache
Cristian Petrache
ABAlina Georgiana Badea
Alina Georgiana Badea
Adriana AlexandruAdriana Alexandru
Adriana Alexandru
The Monit4Healthy system is an IoT-enabled health monitoring solution designed to address critical challenges in real-time biomedical signal processing, energy efficiency, and data transmission. The system’s modular design merges wireless communication components alongside a number of physiological sensors, including galvanic skin response, electromyography, photoplethysmography, and EKG, to allow for the remote gathering and evaluation of health information. In order to decrease network load and enable the quick identification of abnormalities, edge computing is used for real-time signal filtering and feature extraction. Flexible data transmission based on context and available bandwidth is provided through a hybrid communication approach that includes Bluetooth Low Energy and Wi-Fi. Under typical monitoring scenarios, laboratory testing shows reliable wireless connectivity and ongoing battery-powered operation. The Monit4Healthy system is appropriate for scalable deployment in connected health ecosystems and portable health monitoring due to its responsive power management approaches and structured data transmission, which improve the resiliency of the system. The system ensures the reliability of signals whilst lowering latency and data volume in comparison to conventional cloud-only systems. Limitations include the requirement for energy profiling, distinctive hardware miniaturizing, and sustained real-world validation. By integrating context-aware processing, flexible design, and effective communication, the Monit4Healthy system complements existing IoT health solutions and promotes better integration in clinical and smart city healthcare environments.

16 November 2024 in Future Internet
Verified
Journal Article
Open access
PDF file
EPElena Paraschiv
Elena Paraschiv
LBLidia Bajenaru
Lidia Bajenaru
CPCristian Petrache
Cristian Petrache
OBOvidiu Bica
Ovidiu Bica
DNDragoș-Nicolae Nicolau
Dragoș-Nicolae Nicolau
Schizophrenia is a complex neuropsychiatric disorder characterized by disruptions in brain connectivity and cognitive functioning. Continuous monitoring of neural activity is essential, as it allows for the detection of subtle changes in brain connectivity patterns, which could provide early warnings of cognitive decline or symptom exacerbation, ultimately facilitating timely therapeutic interventions. This paper proposes a novel approach for detecting schizophrenia-related abnormalities using deep learning (DL) techniques applied to electroencephalogram (EEG) data. Using an openly available EEG dataset on schizophrenia, the focus is on preprocessed event-related potentials (ERPs) from key electrode sites and applied transfer entropy (TE) analysis to quantify the directional flow of information between brain regions. TE matrices were generated to capture neural connectivity patterns, which were then used as input for a hybrid DL model, combining convolutional neural networks (CNNs) and Bidirectional Long Short-Term Memory (BiLSTM) networks. The model achieved a performant accuracy of 99.94% in classifying schizophrenia-related abnormalities, demonstrating its potential for real-time mental health monitoring. The generated TE matrices revealed significant differences in connectivity between the two groups, particularly in frontal and central brain regions, which are critical for cognitive processing. These findings were further validated by correlating the results with EEG data obtained from the Muse 2 headband, emphasizing the potential for portable, non-invasive monitoring of schizophrenia in real-world settings. The final model, integrated into the NeuroPredict platform, offers a scalable solution for continuous mental health monitoring. By incorporating EEG data, heart rate, sleep patterns, and environmental metrics, NeuroPredict facilitates early detection and personalized interventions for schizophrenia patients.

26 May 2023 in Romanian Cyber Security Journal
Verified
Journal Article
Closed access
DNDragoș Nicolau
Dragoș Nicolau
OBOvidiu Bica
Ovidiu Bica
LBLidia Bajenaru
Lidia Bajenaru
ROCYS is a knowledge resource for practitioners, scientists, and researchers working in various fields of cyber security, hacking, digital forensics, cyber warfare, viruses and worms domain or critical infrastructure protection area.

1 January 2020 in Revista Română de Informatică şi Automatică
Verified
Journal Article
Closed access
OBOvidiu Bica
Ovidiu Bica

8 December 2023 in Revista Română de Informatică şi Automatică
Verified
Journal Article
Open access
OBOvidiu Bica
Ovidiu Bica