Zoltan Czako

Mr. Zoltan Czako

orcid

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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10 November 2021 in Antibiotics
Verified
Journal Article
Open access
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LDLiliana-Elisabeta David
Liliana-Elisabeta David
Anca Monica BrataAnca Monica Brata
Anca Monica Brata
Cristina MogosanCristina Mogosan
Cristina Mogosan
CPCristina Pop
Cristina Pop
ZCZoltan Czako
Zoltan Czako
PSPopa Stefan-Lucian
Popa Stefan-Lucian
Over recent decades, a new antibiotic crisis has been unfolding due to a decreased research in this domain, a low return of investment for the companies that developed the drug, a lengthy and difficult research process, a low success rate for candidate molecules, an increased use of antibiotics in farms and an overall inappropriate use of antibiotics. This has led to a series of pathogens developing antibiotic resistance, which poses severe threats to public health systems while also driving up the costs of hospitalization and treatment. Moreover, without proper action and collaboration between academic and health institutions, a catastrophic trend might develop, with the possibility of returning to a pre-antibiotic era. Nevertheless, new emerging AI-based technologies have started to enter the field of antibiotic and drug development, offering a new perspective to an ever-growing problem. Cheaper and faster research can be achieved through algorithms that identify hit compounds, thereby further accelerating the development of new antibiotics, which represents a vital step in solving the current antibiotic crisis. The aim of this review is to provide an extended overview of the current artificial intelligence-based technologies that are used for antibiotic discovery, together with their technological and economic impact on the industrial sector.

9 July 2022 in Water
Verified
Journal Article
Open access
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LHLia-Anca Hangan
Lia-Anca Hangan
CCCostin Gabriel Chiru
Costin Gabriel Chiru
DADiana Arsene
Diana Arsene
ZCZoltan Czako
Zoltan Czako
DLDragos Florin Lisman
Dragos Florin Lisman
GSGheorghe Sebestyen
Gheorghe Sebestyen
Water supply systems are essential for a modern society. This article presents an overview of the latest research related to information and communication technology systems for water resource monitoring, control and management. The main objective of our review is to show how emerging technologies offer support for smart administration of water infrastructures. The paper covers research results related to smart cities, smart water monitoring, big data, data analysis and decision support. Our evaluation reveals that there are many possible solutions generated through combinations of advanced methods. Emerging technologies open new possibilities for including new functionalities such as social involvement in water resource management. This review offers support for researchers in the area of water monitoring and management to identify useful models and technologies for designing better solutions.

21 November 2022 in Antibiotics
Verified
Journal Article
Open access
PDF file
PSPopa Stefan-Lucian
Popa Stefan-Lucian
CPCristina Pop
Cristina Pop
MDMiruna Dita
Miruna Dita
VBVlad Dumitru Brata
Vlad Dumitru Brata
RBRoxana Bolchis
Roxana Bolchis
APAlexandru-Marius Padureanu
Alexandru-Marius Padureanu
Antibiotic resistance (AR) is a naturally occurring phenomenon with the capacity to render useless all known antibiotics in the fight against bacterial infections. Although bacterial resistance appeared before any human life form, this process has accelerated in the past years. Important causes of AR in modern times could be the over-prescription of antibiotics, the presence of faulty infection-prevention strategies, pollution in overcrowded areas, or the use of antibiotics in agriculture and farming, together with a decreased interest from the pharmaceutical industry in researching and testing new antibiotics. The last cause is primarily due to the high costs of developing antibiotics. The aim of the present review is to highlight the techniques that are being developed for the identification of new antibiotics to assist this lengthy process, using artificial intelligence (AI). AI can shorten the preclinical phase by rapidly generating many substances based on algorithms created by machine learning (ML) through techniques such as neural networks (NN) or deep learning (DL). Recently, a text mining system that incorporates DL algorithms was used to help and speed up the data curation process. Moreover, new and old methods are being used to identify new antibiotics, such as the combination of quantitative structure-activity relationship (QSAR) methods with ML or Raman spectroscopy and MALDI-TOF MS combined with NN, offering faster and easier interpretation of results. Thus, AI techniques are important additional tools for researchers and clinicians in the race for new methods of overcoming bacterial resistance.

16 December 2022 in Journal of Gastrointestinal and Liver Diseases
Verified
Journal Article
Open access
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PSPopa Stefan-Lucian
Popa Stefan-Lucian
TBTeodora Surdea Blaga
Teodora Surdea Blaga
Dan L DumitrascuDan L Dumitrascu
Dan L Dumitrascu
GCGiuseppe Chiarioni
Giuseppe Chiarioni
ESEdoardo Vincenzo Savarino
Edoardo Vincenzo Savarino
ZCZoltan Czako
Zoltan Czako
Background and Aims: High-resolution esophageal manometry (HREM) is the gold standard procedure used for the diagnosis of esophageal motility disorders (EMD). Artificial intelligence (AI) might provide an efficient solution for the automatic diagnosis of EMD by improving the subjective interpretation of HREM images. The aim of our study was to develop an AI-based system, using neural networks, for the automatic diagnosis of HREM images, based on one wet swallow raw image. Methods: In the first phase of the study, the manometry recordings of our patients were retrospectively analyzed by three experienced gastroenterologists, to verify and confirm the correct diagnosis. In the second phase of the study raw images were used to train an artificial neural network. We selected only those tracings with ten test swallows that were available for analysis, including a total of 1570 images. We had 10 diagnosis categories, as follows: normal, type I achalasia, type II achalasia, type III achalasia, esophago-gastric junction outflow obstruction, jackhammer oesophagus, absent contractility, distal esophageal spasm, ineffective esophageal motility, and fragmented peristalsis, based on Chicago classification v3.0 for EMDs. Results: The raw images were cropped, binarized, and automatically divided in 3 parts: training, testing, validation. We used Inception V3 CNN model, pre-trained on ImageNet. We developed a custom classification layer, that allowed the CNN to classify each wet swallow image from the HREM system into one of the diagnosis categories mentioned above. Our algorithm was highly accurate, with an overall precision of more than 93%. Conclusion: Our neural network approach using HREM images resulted in a high accuracy automatic diagnosis of EMDs.

13 July 2022 in Sensors
Verified
Journal Article
Open access
PDF file
TBTeodora Surdea Blaga
Teodora Surdea Blaga
GSGheorghe Sebestyen
Gheorghe Sebestyen
ZCZoltan Czako
Zoltan Czako
LHLia-Anca Hangan
Lia-Anca Hangan
Dan L DumitrascuDan L Dumitrascu
Dan L Dumitrascu
PSPopa Stefan-Lucian
Popa Stefan-Lucian
The goal of this paper is to provide a Machine Learning-based solution that can be utilized to automate the Chicago Classification algorithm, the state-of-the-art scheme for esophageal motility disease identification. First, the photos were preprocessed by locating the area of interest—the precise instant of swallowing. After resizing and rescaling the photos, they were utilized as input for the Deep Learning models. The InceptionV3 Deep Learning model was used to identify the precise class of the IRP. We used the DenseNet201 CNN architecture to classify the images into 5 different classes of swallowing disorders. Finally, we combined the results of the two trained ML models to automate the Chicago Classification algorithm. With this solution we obtained a top-1 accuracy and f1-score of 86% with no human intervention, automating the whole flow, from image preprocessing until Chicago classification and diagnosis.

13 September 2024 in Medicina
Verified
Journal Article
Open access
PDF file
PSPopa Stefan-Lucian
Popa Stefan-Lucian
TBTeodora Surdea Blaga
Teodora Surdea Blaga
Dan L DumitrascuDan L Dumitrascu
Dan L Dumitrascu
APAndrei-Vasile Pop
Andrei-Vasile Pop
Abdulrahman IsmaielAbdulrahman Ismaiel
Abdulrahman Ismaiel
DLDaniel Corneliu Leucuta
Daniel Corneliu Leucuta
Background/Objectives: To develop a deep learning model for esophageal motility disorder diagnosis using high-resolution manometry images with the aid of Gemini. Methods: Gemini assisted in developing this model by aiding in code writing, preprocessing, model optimization, and troubleshooting. Results: The model demonstrated an overall precision of 0.89 on the testing set, with an accuracy of 0.88, a recall of 0.88, and an F1-score of 0.885. It presented better results for multiple categories, particularly in the panesophageal pressurization category, with precision = 0.99 and recall = 0.99, yielding a balanced F1-score of 0.99. Conclusions: This study demonstrates the potential of artificial intelligence, particularly Gemini, in aiding the creation of robust deep learning models for medical image analysis, solving not just simple binary classification problems but more complex, multi-class image classification tasks.