https://repositorio.ufpb.br/jspui/handle/123456789/1115 2026-04-11T12:22:08Z https://repositorio.ufpb.br/jspui/handle/123456789/28793 Título: Um conjunto de dados extraído do Twitter para análise de sentimentos na língua portuguesa Autor(es): Silva, Ewerton Paulo da Abstract: The large amount of data generated by users on social networks has attracted increasing interest in the analysis of the opinions and feelings that are being expressed. For this, one of the most widely used techniques is machine learning, which needs large datasets to work properly. However, in Portuguese, few datasets for this purpose are available, limiting the development of applications in that language. Therefore, this work aims to collect messages from Twitter and to classify their feelings to create a dataset for sentiment analysis. Volunteers labeled 2787 messages that are publicly available. Using the dataset, we achieved 0.4503 average accuracy through machine learning, a result higher than the 0.3523 average accuracy using the SenticNet lexicon. Editor: Universidade Federal da Paraíba Tipo: Artigo de Periódico 2019-09-18T00:00:00Z https://repositorio.ufpb.br/jspui/handle/123456789/28790 Título: O PDCA como elemento integrador das normas ABNT 27001, 27002 e 27003 Autor(es): Souza, Emmanuel Gomes Abstract: In this work is studied the PDCA (Plan-Do-Check-Act) as an integrating element ABNT 27001 standards 27002 and 27003, which come together in a system to assist managers in data analysis to determine the risks surrounding the structure enterprise which can cause deterioration in its structural base, such as decline in trade growth in the industry in which it operates. Having thus, greater integration and iteration of the sectors that structure the company, seeking the help of information technologies for the ciation of information security management systems findadas the ISOs governed the rules to have a more elaborate structure that meets all the needs organizations, thus having a greater control of it. Editor: Universidade Federal da Paraíba Tipo: Artigo de Periódico 2016-11-17T00:00:00Z https://repositorio.ufpb.br/jspui/handle/123456789/28789 Título: Máquina de turing Multi-Head Autor(es): Ramos, Elenilton de Oliveira Abstract: The Turing Machine represents a landmark in computing, and since its inception has been recognized as one of the most important elements for the study of theories involving languages and algorithms. His study in the field of Computer Theory allows the exploration of variations in several structural aspects.This work presents a modified Turing Machine obtained from the inclusion, particularly by the existence of more than one read and write head. This characteristic will be implemented and its behavior for a classical problem will be evaluated considering the aspects of computability and efficiency.The results obtained demonstrated the efficiency of the modification of the Multi-head Turing Machine. Editor: Universidade Federal da Paraíba Tipo: Artigo de Periódico 2018-10-22T00:00:00Z https://repositorio.ufpb.br/jspui/handle/123456789/28787 Título: EducService feedback manager: uma ferramenta para gerar feedback de exercícios online Autor(es): Nascimento, Eduardo Henrique Rocha do Abstract: This paper describes the development and evaluation of a tool to support the correction of online exercises created by teachers throug Google Forms and which is called EducService Feedback Manager (EFM). In this paper we will present a case study about EFM and a comparative analysis considering related tools. The EFM is intended to assist the teaching and learning process inside and outside classroom. It was built as an Add-on for Google Forms that provides feedback about exercises created by the teachers for the students, indicating their mistakes and successes, and also for the teachers, showing the performance of the students and the most common mistakes considering the answers given by each student. Editor: Universidade Federal da Paraíba Tipo: Artigo de Periódico 2016-11-17T00:00:00Z