Gonçalo Carnaz

Dr. Gonçalo Carnaz

Higher Institute for Accountancy and Administration – University of Aveiro, Aveiro, Portugal
orcid
University of Aveiro

Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

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

Representative Publications

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28 October 2024 in Information
Verified
Journal Article
Open access
PDF file
Joao BatistaJoao Batista
Joao Batista
Anabela MesquitaAnabela Mesquita
Anabela Mesquita
Gonçalo CarnazGonçalo Carnaz
Gonçalo Carnaz
(1) Background: The development of generative artificial intelligence (GAI) is transforming higher education. This systematic literature review synthesizes recent empirical studies on the use of GAI, focusing on its impact on teaching, learning, and institutional practices. (2) Methods: Following PRISMA guidelines, a comprehensive search strategy was employed to locate scientific articles on GAI in higher education published by Scopus and Web of Science between January 2023 and January 2024. (3) Results: The search identified 102 articles, with 37 meeting the inclusion criteria. These studies were grouped into three themes: the application of GAI technologies, stakeholder acceptance and perceptions, and specific use situations. (4) Discussion: Key findings include GAI’s versatility and potential use, student acceptance, and educational enhancement. However, challenges such as assessment practices, institutional strategies, and risks to academic integrity were also noted. (5) Conclusions: The findings help identify potential directions for future research, including assessment integrity and pedagogical strategies, ethical considerations and policy development, the impact on teaching and learning processes, the perceptions of students and instructors, technological advancements, and the preparation of future skills and workforce readiness. The study has certain limitations, particularly due to the short time frame and the search criteria, which might have varied if conducted by different researchers.

19 September 2024 in Preprints.org
Verified
Preprint
Open access
PDF file
Joao BatistaJoao Batista
Joao Batista
Anabela MesquitaAnabela Mesquita
Anabela Mesquita
Gonçalo CarnazGonçalo Carnaz
Gonçalo Carnaz
(1) Background: The development of generative artificial intelligence (GAI) is transforming higher education. This systematic literature review synthesizes recent empirical studies on the use of GAI, focusing on its impact on teaching, learning, and institutional practices. (2) Methods: Following PRISMA guidelines, a comprehensive search strategy was employed to locate scientific articles on GAI in higher education, published by Scopus and Web of Science between January 2023 and January 2024. (3) Results: The search identified 102 articles, with 37 meeting the inclusion criteria. These studies were grouped into three themes: the application of GAI technologies, stakeholder acceptance and perceptions, and specific use situations. (4) Discussion: Key findings include GAI’s versatility and potential use, student acceptance, and educational enhancement. However, chal-lenges such as assessment practices, institutional strategies, and risks to academic integrity were also noted. (5) Conclusions: The findings help identify potential directions for future research, including assessment integrity and pedagogical strategies, ethical considerations and policy development, the impact on teaching and learning processes, perceptions of students and instructors, technological advancements, and the preparation of future skills and workforce readiness. The study has certain limitations, particularly due to the short time frame and the search criteria, which might have varied if conducted by different researchers.

4 June 2021 in Informatics
Verified
Journal Article
Open access
PDF file
Gonçalo CarnazGonçalo Carnaz
Gonçalo Carnaz
Vitor Beires NogueiraVitor Beires Nogueira
Vitor Beires Nogueira
Mário AntunesMário Antunes
Mário Antunes
Organizations have been challenged by the need to process an increasing amount of data, both structured and unstructured, retrieved from heterogeneous sources. Criminal investigation police are among these organizations, as they have to manually process a vast number of criminal reports, news articles related to crimes, occurrence and evidence reports, and other unstructured documents. Automatic extraction and representation of data and knowledge in such documents is an essential task to reduce the manual analysis burden and to automate the discovering of names and entities relationships that may exist in a case. This paper presents SEMCrime, a framework used to extract and classify named-entities and relations in Portuguese criminal reports and documents, and represent the data retrieved into a graph database. A 5WH1 (Who, What, Why, Where, When, and How) information extraction method was applied, and a graph database representation was used to store and visualize the relations extracted from the documents. Promising results were obtained with a prototype developed to evaluate the framework, namely a name-entity recognition with an F-Measure of 0.73, and a 5W1H information extraction performance with an F-Measure of 0.65.

26 June 2021 in Data
Verified
Journal Article
Open access
PDF file
Gonçalo CarnazGonçalo Carnaz
Gonçalo Carnaz
Mário AntunesMário Antunes
Mário Antunes
Vitor Beires NogueiraVitor Beires Nogueira
Vitor Beires Nogueira
Criminal investigations collect and analyze the facts related to a crime, from which the investigators can deduce evidence to be used in court. It is a multidisciplinary and applied science, which includes interviews, interrogations, evidence collection, preservation of the chain of custody, and other methods and techniques of investigation. These techniques produce both digital and paper documents that have to be carefully analyzed to identify correlations and interactions among suspects, places, license plates, and other entities that are mentioned in the investigation. The computerized processing of these documents is a helping hand to the criminal investigation, as it allows the automatic identification of entities and their relations, being some of which difficult to identify manually. There exists a wide set of dedicated tools, but they have a major limitation: they are unable to process criminal reports in the Portuguese language, as an annotated corpus for that purpose does not exist. This paper presents an annotated corpus, composed of a collection of anonymized crime-related documents, which were extracted from official and open sources. The dataset was produced as the result of an exploratory initiative to collect crime-related data from websites and conditioned-access police reports. The dataset was evaluated and a mean precision of 0.808, recall of 0.722, and F1-score of 0.733 were obtained with the classification of the annotated named-entities present in the crime-related documents. This corpus can be employed to benchmark Machine Learning (ML) and Natural Language Processing (NLP) methods and tools to detect and correlate entities in the documents. Some examples are sentence detection, named-entity recognition, and identification of terms related to the criminal domain.

10 April 2019
Verified
Book Chapter
Closed access
PDF file
Gonçalo CarnazGonçalo Carnaz
Gonçalo Carnaz
Vitor Beires NogueiraVitor Beires Nogueira
Vitor Beires Nogueira
Mário AntunesMário Antunes
Mário Antunes
NFNuno Ferreira
Nuno Ferreira

27 March 2019
Verified
Book Chapter
Closed access
PDF file
Gonçalo CarnazGonçalo Carnaz
Gonçalo Carnaz
Paulo QuaresmaPaulo Quaresma
Paulo Quaresma
Vitor Beires NogueiraVitor Beires Nogueira
Vitor Beires Nogueira
Mário AntunesMário Antunes
Mário Antunes
Nuno Miguel Fonseca FerreiraNuno Miguel Fonseca Ferreira
Nuno Miguel Fonseca Ferreira