94,814 research outputs found

    Predicting Success Study Using Students GPA Category

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    Abstract. Maintaining student graduation rates are the main tasks of a University. High rates of student graduation and the quality of graduates is a success indicator of a university, which will have an impact on public confidence as stakeholders of higher education and the National Accreditation Board as a regulator (government). Making predictions of student graduation and determine the factors that hinders will be a valuable input for University. Data mining system facilitates the University to create the segmentation of students’ performance and prediction of their graduation. Segmentation of student by their performance can be classified in a quadrant chart is divided into 4 segments based on grade point average and the growth rate of students performance index per semester. Standard methodology in data mining i.e CRISP-DM (Cross Industry Standard Procedure for Data Mining) will be implemented in this research. Making predictions, graduation can be done through the modeling process by utilizing the college database. Some algorithms such as C5, C & R Tree, CHAID, and Logistic Regression tested in order to find the best model. This research utilizes student performance data for several classes. Parameters used in addition to GPA also included the master's students data are expected to build the student profile data. The outcome of the study is the student category based on their study performance and prediction of graduation. Based on this prediction, the  university may recommend actions to be taken to improve the student  achievement index and graduation rates.Keywords: graduation, segmentation, quadrant GPA, data mining, modeling algorithm

    Student Modeling within a Computer Tutor for Mathematics: Using Bayesian Networks and Tabling Methods

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    Intelligent tutoring systems rely on student modeling to understand student behavior. The result of student modeling can provide assessment for student knowledge, estimation of student¡¯s current affective states (ie boredom, confusion, concentration, frustration, etc), prediction of student performance, and suggestion of the next tutoring steps. There are three focuses of this dissertation. The first focus is on better predicting student performance by adding more information, such as student identity and information about how many assistance students needed. The second focus is to analyze different performance and feature set for modeling student short-term knowledge and longer-term knowledge. The third focus is on improving the affect detectors by adding more features. In this dissertation I make contributions to the field of data mining as well as educational research. I demonstrate novel Bayesian networks for student modeling, and also compared them with each other. This work contributes to educational research by broadening the task of analyzing student knowledge to student knowledge retention, which is a much more important and interesting question for researchers to look at. Additionally, I showed a set of new useful features as well as how to effectively use these features in real models. For instance, in Chapter 5, I showed that the feature of the number of different days a students has worked on a skill is a more predictive feature for knowledge retention. These features themselves are not a contribution to data mining so much as they are to education research more broadly, which can used by other educational researchers or tutoring systems

    Predicting Success Study Using Students GPA Category

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    . Maintaining student graduation rates are the main tasks of a University. High rates of student graduation and the quality of graduates is a success indicator of a university, which will have an impact on public confidence as stakeholders of higher education and the National Accreditation Board as a regulator (government). Making predictions of student graduation and determine the factors that hinders will be a valuable input for University. Data mining system facilitates the University to create the segmentation of students' performance and prediction of their graduation. Segmentation of student by their performance can be classified in a quadrant chart is divided into 4 segments based on grade point average and the growth rate of students performance index per semester. Standard methodology in data mining i.e CRISP-DM (Cross Industry Standard Procedure for Data Mining) will be implemented in this research. Making predictions, graduation can be done through the modeling process by utilizing the college database. Some algorithms such as C5, C & R Tree, CHAID, and Logistic Regression tested in order to find the best model. This research utilizes student performance data for several classes. Parameters used in addition to GPA also included the master's students data are expected to build the student profile data. The outcome of the study is the student category based on their study performance and prediction of graduation. Based on this prediction, the university may recommend actions to be taken to improve the student achievement index and graduation rates

    Student Modeling From Different Aspects

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    With the wide usage of online tutoring systems, researchers become interested in mining data from logged files of these systems, so as to get better understanding of students. Varieties of aspects of students’ learning have become focus of studies, such as modeling students’ mastery status and affects. On the other hand, Randomized Controlled Trial (RCT), which is an unbiased method for getting insights of education, finds its way in Intelligent Tutoring System. Firstly, people are curious about what kind of settings would work better. Secondly, such a tutoring system, with lots of students and teachers using it, provides an opportunity for building a RCT infrastructure underlying the system. With the increasing interest in Data mining and RCTs, the thesis focuses on these two aspects. In the first part, we focus on analyzing and mining data from ASSISTments, an online tutoring system run by a team in Worcester Polytechnic Institute. Through the data, we try to answer several questions from different aspects of students learning. The first question we try to answer is what matters more to student modeling, skill information or student information. The second question is whether it is necessary to model students’ learning at different opportunity count. The third question is about the benefits of using partial credit, rather than binary credit as measurement of students’ learning in RCTs. The fourth question focuses on the amount that students spent Wheel Spinning in the tutoring system. The fifth questions studies the tradeoff between the mastery threshold and the time spent in the tutoring system. By answering the five questions, we both propose machine learning methodology that can be applied in educational data mining, and present findings from analyzing and mining the data. In the second part, we focused on RCTs within ASSISTments. Firstly, we looked at a pilot study of reassessment and relearning, which suggested a better system setting to improve students’ robust learning. Secondly, we proposed the idea to build an infrastructure of learning within ASSISTments, which provides the opportunities to improve the whole educational environment

    Data-Driven Modeling of Engagement Analytics for Quality Blended Learning

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    Engagement analytics is a branch of learning analytics (LA) that focuses on student engagement, with the majority of studies conducted by computer scientists.Thus, rather than focusing on learning, research in this field usually treats education as a scenario for algorithms optimization and it rarely concludes with implications for practice. While LA as a research field is reaching ten years, its contribution to our understanding of teaching and learning and its impact on learning enhancement are still underdeveloped. This paper argues that data-driven modeling of engagement analytics is helpful to assess student engagement and to promote reflections on the quality of teaching and learning. In this article, the authors a) introduce four key constructs (student engagement, learning analytics, engagement analytics, modeling and data-driven modeling); b) explain why data-driven modeling is chosen for engagement analytics and the limitations of using a predefined framework; c) discuss how to use engagement analytics to promote pedagogical reflection using a pilot study as a demonstration. As a final remark, the authors see the need of interdisciplinary collaboration on engagement analytics between computer science and educational science. In fact, this collaboration should enhance the use of machine learning and data mining methods to explore big data in education as a means to provide effective insights for quality educational practice.Peer reviewe

    Data Mining Menggunakan Algoritma Na�ve Bayes Untuk Klasifikasi Kelulusan Mahasiswa Universitas Dian Nuswantoro. ( Studi Kasus: Fakultas Ilmu Komputer Angkatan 2009 ).

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    Student data and data Dian Nuswantoro University student graduation produce data that is very abundant in the form of student profile data and academic data. This happens repeatedly and cause a build up of the student data that affect information retrieval to the data. This study aims to perform the classification of student data Dian Nuswantoro University of Computer Science faculty class of 2009 tiered Diploma and S1 by using data mining process using classification techniques. The method used is the CRISP-DM with a through understanding of business processes, understanding data, the data preparation, modeling, evaluation and deployment. The algorithm used for graduation classification is Naive Bayes algorithm. Naïve Bayes is a simple probabilistic based prediction technique on the application of Bayes theorem or rule with a strong independence assumption on feature, meaning that a feature is not data relating to the presence or absence of other features in the same data. Implementation using RapidMiner 5.3 is used to help find an accurate value. Attributes used is NIM, Name, Qualification, courses, Province of Origin, Gender, credits, GPA, and Graduation Year. The results of this study are used as one basis for determining policy decisions by the computer sciene faculty

    PERANCANGAN DATA WAREHOUSE DAN PENERAPAN DATA MINING UNTUK MENDUKUNG SISTEM INFORMASI AKADEMIK UNIVERSITAS KUNINGAN

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    Good quality education is a goal to be achieved by any educational institution. In the world of education dynamically evolving the required educational institutions to improve the quality of education and graduates. To achieve this goal each competing institution to produce a model of innovation and education. Institutions can utilize the availability of appropriate information very influential in increasing the quality of service to students and help produce the right business decisions. The purpose of this study was to produce a model of the data warehouse Brass University Academic Information Systems and generate patterns of data mining to the data admission to prospective students determine possible re-register or not so if the resignation of incoming freshmen are expected to be known early will help the management campus to take the actions necessary to maintain the prospective student. This Tstudy used two models that modeling techniques for data warehouse star schema model and decision tree  classification technique for data mining. Keyword: Data warehouse, data mining, classification, and decision tre

    Determining the Effect of Curriculum and Facilities on Academic Achievement Using Data Mining Approach

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    Education domain offers many interest and challenge in data mining applications that potentially identified as a tool to help both educators and students to improve the quality of education system. Data Mining applies modern statistical and computational technologies to the problem of finding useful hidden patterns within large databases. Thus, this study applied data mining technique to identify the hidden information that affects the academic achievement among respondents. The respondents for this study are consists of all public university students which complete their study within year 2007. The questionnaire that has been used in this study was adopted from Kajian Pengesanan Graduan, Kementerian Pengajian Tinggi and it focuses on curriculum and facilities that have been provided by universities. The aims of this study is to determine whether the curriculum and facilities that provided by university has an effect on students academic achievement. 55,315 respondents data were used for descriptive task while 39,801 data for predictive task. Both data mining approaches, namely the descriptive and predictive have been utilized to perform the analysis prior to build the model. For descriptive purposes, frequency, cross tabulation and correlation coefficients were computed to check whether significant correlation exists. For predictive modeling, logistic regression and neural network were used. Statistical Pakages for Sosial Science (SPSS) was used for regression technique and Statistical Analytical Software (SAS) for Neural Network modeling. Then, the online questionnaire was integrated with Neural Network model to predict future student academic achievement. The findings in this study suggest neural network is the best model compared to logistic regression to measure the effect of curriculum and facilities on academic achievement. The highest accuracy from neural network is 89.47%, when demographics and curriculum become the contributing variables to academic achievement. Most of the neural network model accuracy is over than 80% while logistic regression accuracy is below than 50 %

    Supporting teachers in collaborative student modeling: a framework and an implementation

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    Collaborative student modeling in adaptive learning environments allows the learners to inspect and modify their own student models. It is often considered as a collaboration between students and the system to promote learners’ reflection and to collaboratively assess the course. When adaptive learning environments are used in the classroom, teachers act as a guide through the learning process. Thus, they need to monitor students’ interactions in order to understand and evaluate their activities. Although, the knowledge gained through this monitorization can be extremely useful to student modeling, collaboration between teachers and the system to achieve this goal has not been considered in the literature. In this paper we present a framework to support teachers in this task. In order to prove the usefulness of this framework we have implemented and evaluated it in an adaptive web-based educational system called PDinamet.Postprint (author's final draft
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