scholarly journals Visual analysis to compare academic performances of quota and non-quota students from computer-related programs

2020 ◽  
Author(s):  
Pedro B. Pio ◽  
Igor C. Sodré ◽  
Vinicius R. P. Borges
Keyword(s):  
Academic Performance ◽  
Public Universities ◽  
Visual Analysis ◽  
Dropout Rates ◽  
Quota System ◽  
Brazilian Society ◽  
Analysis Process

The implementation of affirmative actions in public universities is a topic of debate within the Brazilian society, specially regarding the academic performance of students that have been admitted through the quota system. This paper describes a visual analysis process to explore and compare the academic performances of quota and non-quota students from computer-related programs in a public Brazilian university. The results revealed that both failure and dropout rates for quota students are slightly higher than non-quota students in the first terms, but tends to present similar rates at the final terms.

scholarly journals ANÁLISE DO DESEMPENHO ACADÊMICO DE COTISTAS E NÃO COTISTAS NA UTFPR - CURITIBA

2018 ◽  
Vol 25 (1) ◽  
pp. 35 ◽  
Author(s):  
Thais Mariane Biembengut ◽  
Patrícia Sanez Pacheco ◽  
José Carlos Pereira Coninck
Keyword(s):  
Academic Performance ◽  
Public Universities ◽  
Statistical Tests ◽  
Educación Superior ◽  
Quota System ◽  
Educacion Superior ◽  
Average Grade ◽  
University Of Technology ◽  
Coeffi Cients ◽  
Selective Process

Neste artigo, apresenta-se análise do desempenho acadêmico dos ingressantes cotistas e não cotistas entre os anos 2013-2015 na Universidade Tecnológica Federal do Paraná (UTFPR) – Curitiba, matriculados regularmente em 15 cursos. A razão da escolha desse período é devida ao processo seletivo de 2013 atender à Lei no 12. 711/2012, sobre adoção do sistema de cotas em todas as Universidades públicas do país. Por meio de teste estatístico de comparação de médias, verificou-se que em nove dos 15 cursos analisados não houve diferença significativa nos coeficientes de rendimentos médios entre cotistas e não cotistas. Diferenças significativas ocorreram em cursos “mais valorizados”, isto é, naqueles em que a nota média de ingresso na Universidade é mais alta. Nesses cursos, como os de engenharias, observou-se que a defasagem na formação anterior do estudante cotista, implicou menor rendimento acadêmico.ANALYSIS OF THE ACADEMIC PERFORMANCE OF QUOTA AND NON-QUOTA STUDENTS AT UTFPR – CURITIBA, BRAZILAbstractIn this article, we present an analysis of the academic performance of students who entered the Federal University of Technology – Parana, campus Curitiba, Brazil, through the quota system in the years 2013-2015 and that are currently enrolled regularly in 15 courses. The reason for this period is due to the 2013 selective process that met Law number 12.711/2012, on the adoption of the quota system in all public universities in the country. By means of statistical tests of comparison of means, it was verifi ed that in nine of the 15 analyzed course there was no signifi cant diff erence in the coeffi cients between quota students and non-quota students. However, signifi cant diff erences appeared in ‘more valued’ courses, in those the average grade of entrance is higher. In these courses, as in the Engineering ones, we observed that the discrepancy in the previous education of the quota student implies lower academic performance in the university.Keywords: Quota System. Academic Performance. Higher Education.ANÁLISIS DEL DESEMPEÑO ACADÉMICO DE COTISTAS Y NO COTISTAS EN LA UTFPR – CURITIBAResumenEn este trabajo se presenta un análisis del desempeño académico de alumnos cotistas y no cotistas entre los años 2013-2015 en la Universidade Tecnológica Federal do Paraná (UTFPR) – Curitiba”, matriculado regularmente en 15 cursos. El motivo de este período es justifi cado ya que el processo de selección a partir de 2013 atiende la Lei no 12.711/2012, sobre la adopción del sistema de ingreso entre modalidades generales y provenientes de colegios públicos en todas las Universidades públicas del país. Por medio de una análisis estadística de comparación de medias, fue verifi cado que en nueve de las quince carreras analizadas no hubo diferencia signifi cativa en los coefi cientes de rendimiento medio entre ambosgrupos, sin embargo, diferencias signifi cativas ocurrieron entre las carreras más valorizadas, aquellos em que la nota media de ingreso en la universidad es más alta. En estos cursos, como los de ingenierías se observó una brecha en la formación previa del estudiante cotista implicó menor rendimiento académico.Palabras clave: Sistema de cuotas. Desempeño académico. Educación superior.

scholarly journals As cotas nas universidades públicas diminuem a qualidade dos ingressantes?

2017 ◽  
Vol 28 (69) ◽  
pp. 652 ◽  
Author(s):  
Lara Vilela ◽  
Thiago Yudi Tachibana ◽  
Naercio Menezes Filho ◽  
Bruno Komatsu
Keyword(s):  
Higher Education ◽  
High School ◽  
Public Policy ◽  
Academic Performance ◽  
Minority Students ◽  
Public Universities ◽  
Public University ◽  
Quota System ◽  
Palabras Clave

<p>Este artigo utiliza os microdados do Exame Nacional do Ensino Médio (Enem) e do Censo da Educação Superior para, através de simulações sobre os efeitos das cotas, quantificar e qualificar estimativas do impacto causado pela política de cotas para acesso às universidades federais sobre a distribuição de notas do Enem de cotistas e não cotistas, as notas de corte e as médias de notas dos ingressantes. Os resultados mostram que a maior diversidade (de categoria administrativa do ensino médio, de renda e de raça) nas universidades federais, introduzida pelas cotas, não acarreta ingresso de alunos com notas significativamente menores quando comparado com o cenário sem cotas. Isso ocorre devido à existência de potenciais cotistas cujas notas se encontravam acima do último decil (décimo) de notas em número suficiente para preencher as vagas reservadas.</p><p><strong>Palavras-chave:</strong> Cotas; Universidades Públicas; Políticas Públicas; Desempenho Escolar.</p><p>  </p><p><strong>¿Las cuotas en las universidades públicas disminuyen la calidad de los ingresantes?</strong></p><p>Este artículo utiliza los microdatos del Examen Nacional de la Enseñanza Media (Enem) y del Censo de Educación Superior para, a través de simulaciones sobre los efectos de las cuotas, cuantificar y calificar estimaciones del impacto causado por la política de cuotas para acceso a las universidades federales sobre la distribución de notas del Enem de cuotistas y no cuotistas, las notas de corte y los promedios de notas de los ingresantes. Los resultados muestran que la mayor diversidad (de categoría administrativa de la enseñanza media, de renta y de raza) en las universidades federales, introducida por las cuotas, no acarrea ingreso de alumnos con notas significativamente menores cuando es comparado con el escenario sin cuotas. Esto ocurre debido a la existencia de potenciales cuotistas cuyas notas se encontraban por encima del último decil (décimo) de billetes en número suficiente para llenar las vacantes reservadas.</p><p><strong>Palabras clave:</strong> Cuotas; Universidades Públicas; Políticas Públicas; Rendimiento Escolar.</p><p> </p><p><strong>Do public university quotas lower the quality of entrants?</strong></p><p>This article uses microdata from the National High School Exam (Enem) and the Higher Education Census to make simulations of the effects of quotas, and quantifies and qualifies their estimated effects on the access of students to federal universities, including the distribution of Enem scores as well as the cutoff and average scores for quota and non-quota students. The results show that the greater diversity (in terms of public school, poor and minority students) in federal universities caused by the introduction of the quota system has not led to the admission of students with significantly lower scores when compared to the scenario without quotas. This is due to the existence of potential quota students whose scores are in the highest score decile in sufficient numbers to fill the reserved places.</p><strong>Keywords:</strong> Quotas; Public Universities; Public Policy; Academic Performance.

A systematic view on data descriptors for the visual analysis of tabular data

2016 ◽  
Vol 16 (3) ◽  
pp. 232-256 ◽  
Author(s):  
Hans-Jörg Schulz ◽  
Thomas Nocke ◽  
Magnus Heitzler ◽  
Heidrun Schumann
Keyword(s):  
Data Analysis ◽  
Visual Analysis ◽  
Data Gathering ◽  
Climate Impact ◽  
General Concept ◽  
Basic Knowledge ◽  
Data Types ◽  
Process Data ◽  
Tabular Data ◽  
Analysis Process

Visualization has become an important ingredient of data analysis, supporting users in exploring data and confirming hypotheses. At the beginning of a visual data analysis process, data characteristics are often assessed in an initial data profiling step. These include, for example, statistical properties of the data and information on the data’s well-formedness, which can be used during the subsequent analysis to adequately parametrize views and to highlight or exclude data items. We term this information data descriptors, which can span such diverse aspects as the data’s provenance, its storage schema, or its uncertainties. Gathered descriptors encapsulate basic knowledge about the data and can thus be used as objective starting points for the visual analysis process. In this article, we bring together these different aspects in a systematic form that describes the data itself (e.g. its content and context) and its relation to the larger data gathering and visual analysis process (e.g. its provenance and its utility). Once established in general, we further detail the concept of data descriptors specifically for tabular data as the most common form of structured data today. Finally, we utilize these data descriptors for tabular data to capture domain-specific data characteristics in the field of climate impact research. This procedure from the general concept via the concrete data type to the specific application domain effectively provides a blueprint for instantiating data descriptors for other data types and domains in the future.

VafusQ: A methodology to build visual analysis applications with data quality features

2018 ◽  
Vol 18 (4) ◽  
pp. 384-404
Author(s):  
Jhon Alejandro Triana ◽  
Dirk Zeckzer ◽  
Hans Hagen ◽  
Jose Tiberio Hernandez
Keyword(s):  
Data Quality ◽  
Visual Analysis ◽  
New Technologies ◽  
The Public ◽  
Interactive Applications ◽  
Public Transport System ◽  
Analysis Process ◽  
Interactive Visualizations ◽  
Quality Features

The use of interactive applications to support the decision-making process is more common every day. However, a huge amount of data is required in order to make more informed decisions. Fortunately, with the arrival of new technologies there are many data sources available. This requirement of data causes heterogeneity and data quality problems. A set of data quality problems are reduced in the preprocessing stage. However, many data quality issues persist after the preprocessing stage. For this reason, we proposed a methodology to take the data quality problems, to represent them and simultaneously support the analysis process. In addition, an application is developed as a use case of the methodology by analyzing the public transport system in Bogotá. Furthermore, a case study is performed to test the usefulness of the developed application. As a result, the methodology made possible the development of interactive visualizations that constitute an application that is useful to achieve the analysis tasks by including data quality features.

scholarly journals Identifying Patterns of Students Academic Performance from Tracer Evaluation using Descriptive Data Mining

2019 ◽  
Vol 8 (2S2) ◽  
pp. 187-191
Keyword(s):  
Data Mining ◽  
Academic Performance ◽  
English Language ◽  
Public Universities ◽  
Study Data ◽  
Performance Model ◽  
Tracer Study ◽  
Descriptive Data ◽  
Hidden Knowledge ◽  
The Impact

The Ministry of Higher Education Malaysia has collected data through tracer study since 2007. The aim is to gather feedbacks from graduates as a basis improve to basis in improving. The availability of tracer study data in digital format offers various advantages to decision makers as many tools are available to extract and discover the hidden knowledge within the large databases. This paper presents the applicability of descriptive data mining and logistic regression to discover the hidden knowledge within the tracer study data with respect to measuring academic performance of Arts and Sciences graduates of Malaysia public universities. The impact of independent variables, i.e. Bahasa Melayu, English Language and Malaysian University English Test on the academic performance is investigated. The empirical results suggest that the academic performance between male and female graduates from Arts and Science fields is significantly different. Variables such as Bahasa Melayu, English Language and Malaysian University English Test showed a significant correlation with academic performance. The results also exhibit that the impact on academic performance of Arts graduates is different from the Science graduates. Guided by these empirical findings, this study suggests an academic performance model for Arts and Science graduates of Malaysia public universities.

scholarly journals Re-examining the relation of Core self-evaluations and Academic performance: Investigating the mediating role of Cognitive test-anxiety

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Sreeparna Kar ◽  
Keyword(s):  
Academic Performance ◽  
Test Anxiety ◽  
Mediating Effect ◽  
Cognitive Test ◽  
Self Evaluation ◽  
Mediating Role ◽  
Analysis Process ◽  
Cognitive Test Anxiety ◽  
Core Self

The present study attempted to investigate the mediating effect of Cognitive Test-anxiety (CTA) between the relation of Core Self-evaluation (CSE) and academic performance. Sample consisted of 599 class 12 students from different schools in Kolkata belonging to both English and Bengali medium schools and from both science and humanities streams. Subjects were selected according to the inclusion criteria to maintain homogeneity of sample. To carry out mediation analysis PROCESS macro for SPSS by Preacher & Hayes, 2004 was used. Data was analyzed using SPSS 22 version. Results showed CSE positively predicted academic performance which was significantly mediated by CTA. It can be said that CSE being a dispositional variable its relation with academic performance can be strengthened or weakened by underlying cognitive factors, one important among them being CTA which predisposes an individual to experience anxiety in evaluative situations thereby lowering performance.

scholarly journals Participatory Social Sensor: A Framework to Social Media Data Acquisition and Analysis

2019 ◽  
Author(s):  
Igor Araujo ◽  
Paulo Henrique Lopes Rettore ◽  
João Guilherme Maia de Menezes
Keyword(s):  
Social Media ◽  
Data Acquisition ◽  
Visual Analysis ◽  
Social Behaviors ◽  
Data Access ◽  
Heterogeneous Data ◽  
Social Media Data ◽  
Analysis Process ◽  
Media Data ◽  
Social Sensor

Nowadays, understanding urban mobility, transit, people viewpoint, and social behaviors has been the focus of many research and investments. However, data access is restricted to private companies and governments. In addition, the costs to create a sensor infrastructure on a given area is prohibitive. Then, using Location-Based Social Media (LBSM) may provide a new way to better comprehend the social behaviors, by the use of a users viewpoint. In this work, we propose the use of LBSM as participatory sensing, designing the Participatory Social Sensor (PSS), a friendly framework to social media data acquisition and analysis. We develop the Twitter data acquisition and analysis process, aiming to achieve the user application goals through a file setup,where the user specifies the spatial area, temporal interval, tags, and other parameters. As a result, the PSS shows a set of visual analysis which provides a context overview, allowing an easy way to researchers make-decision. A case study, Detection and Enrichment Service for Road Events Based on Heterogeneous Data Merger for VANETs, based on PSS framework was published in the current conference.

scholarly journals POLÍTICAS DE IDENTIDADE: POSIÇÕES ANTROPOLÓGICAS DIANTE DOS DIREITOS QUILOMBOLAS E DAS COTAS RACIAIS / IDENTITY POLITICS: ANTHROPOLOGICAL PERSPECTIVES ON QUILOMBOLAS’ RIGHTS AND RACIAL QUOTAS

2017 ◽  
Vol 1 (50) ◽  
Author(s):  
Andreas Hofbauer
Keyword(s):  
Cultural Identity ◽  
Racial Discrimination ◽  
Identity Politics ◽  
Public Universities ◽  
Brazilian Society ◽  
The Way

Propostas para implementar políticas focadas que pretendem combater os efeitos da discriminação racial no Brasil têm provocado muita polêmica na sociedade brasileira. Neste debate, os posicionamentos e as contribuições de antropólogos brasileiros, tanto para a defesa quanto para o questionamento destas políticas de identidade, ganharam destaque. Este artigo propõe-se a analisá-las ao exemplo de dois casos emblemáticos: o dos direitos, garantidos pela Constituição, aos remanescentes de comunidades dos quilombos e o da implementação de cotas raciais em universidades públicas. Especial atenção é dada à maneira como conceitos paradigmáticos do pensamento antropológico – raça, cultura, identidade (etnicidade) – são acionados nas respectivas linhas de argumentação. ABSTRACTProposals to implement targeted policies aimed at combatting the effects of racial discrimination in Brazil have provoked great controversy in Brazilian society. In this debate, perspectives and contributions of Brazilian anthropologists, both in defense and questioning these identity politics, have been widely commented upon. This article proposes to analyze these policies using examples of two representative cases: the rights guaranteed by the Constitution to the remnants of maroon communities (quilombos) and the implementation of racial quotas in public universities. Special attention was given to the way in which paradigmatic concepts in anthropological thought – race, cultural, identity (ethnicity) – are mobilized in these respective lines of argument.

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