scholarly journals Penerapan Data Mining Klasifikasi Tingkat Pemahaman Siswa Pada Pelajaran Matematika

2021 ◽  
Vol 5 (1) ◽  
pp. 9
Author(s):  
Tri Novika ◽  
Poningsih Poningsih ◽  
Harly Okprana ◽  
Agus Perdana Windarto ◽  
Hasudungan Siahaan

The purpose of the research is to classify the concept of understanding students in Mathematics lessons. In the learning process teaching students understanding learning materials is very important. The attainment of student understanding is a function of the being of an educator. Many formulas and concepts to understand make it difficult for students to solve math problems. The data source was obtained from the results of a math comprehension questionnaire of eighth graders at Tamansiswa Tapian Dolok Private Junior High School. The classification method used is the C4.5 Algorithm and assisted with RapidMiner software. Attributes used are student interests, how students learn, student motivation, how to teach teachers, learning media, and infrastructure facilities. The results of the calculation of entropy values and attribute gains obtained 15 rules of mathematical comprehension decisions with 9 rules of understanding status and 6 rules of inconsistency status. Classification modeling with C4.5 Algorithm on RapidMiner obtained 96.00% accuracy Classification with C4.5 Algorithm can be applied and provide new information about the classification of student comprehension concepts in math lessons

2020 ◽  
Vol 2 (1) ◽  
pp. 41-48
Author(s):  
F Fauziah ◽  
Dedy Hartama ◽  
Irfan Sudahri Damanik

The research objective was to obtain a model of rules in classifying the level of customer satisfaction at Indiis Cafe Pematangsiantar. By knowing the level of customer satisfaction, the owner of Indiis Cafe can improve the service if it is not good and further improve the service when the level of satisfaction is good. This study measures the level of customer satisfaction at Indiis Cafe Pematangsiantar. The method used in this study is the C4.5 Algorithm, where the data source used is a questionnaire / questionnaire given to customers at Indiis Cafe Pematangsiantar. The variables used include (1) Product, (2) Price, (3) Place (4) Promotion and (5) Service. The results of the study obtained 15 rules for the classification of customer satisfaction levels with 8 satisfied status rules and 7 unsatisfied rules. The C4.5 algorithm can be used in the case of customer satisfaction levels with an accuracy rate of 98.00%. From the results of the analysis is expected to be applied so that it can be used as a decision to improve service to customers.


Author(s):  
Ira Eko Retnosari

university can communicate new information, ideas, studies, and research results. This journal aims to describe the use of the spelling of Buana Pendidikan journal. This study applies a qualitative approach. The data source of this study is the spelling of Buana Pendidikan journal. The data collecting in this research is done by documentation method. The data collection techniques are (1) the journal collection, (2) copying journal, (3) reading journal, (4) marking with highlighter, (5) classification, (6) coding, and (7) making cards. The data analysis used descriptive method. The stages of data analysis process include (1) the data collection, (2) classification of data, (3) the determination of errors frequency, (4) explanation. The result of this journal which is the use of spelling that contained in Buana Pendidikan journal is good. It can be proved from the inaccuracy use of spelling that mostly are the use of comma, while other punctuations are relatively little. In addition, the other inaccuracies use of spelling are (1) writing capital letters, (2) writing italics, (3) the writing of numbers, (4) writing the word, (5) the use of dots, and (7) the use of commas. This journal is expected to give inputs to the lecturers to be able to use spelling correctly when writing a journal. In writing a journal, the use of spelling should be applied properly


2021 ◽  
Vol 86 (3) ◽  
pp. 205-209
Author(s):  
Karel Crha ◽  
◽  
Michal Ješeta ◽  
Radovan Pilka ◽  
Pavel Ventruba ◽  
...  

Summary Objective: There have been many studies on adenomyosis, which can impair the quality of life of a woman. There are various kinds of opinions on the pathogenesis, diagnostics and treatment of adenomyosis. The goal of this article is to present the current knowledge of adenomyosis and its impact on the endometrial function and receptivity. Methods: PubMed/Medline, Web of Sciences and Scopus were searched for the articles in English indexed until February 2021 with terms of: adenomyosis, endometrial receptivity, and infertility. Results: Recent studies on angiogenesis and epithelial-mesenchymal transition in the endometrium bring new information on the ethiology and pathogenesis of adenomyosis. In clinical practice, the main diagnostic methods of adenomyosis include transvaginal ultrasound, magnetic resonance imaging or hysteroscopy, although the definitive confirmation is set by histopathological examination. The rules of #Enzian classification of endometriosis should be applied for the classification of adenomyosis. The treatment of adenomyosis should consider individual clinical presentation and reproductive plans of a patient and should be performed in centers for the treatment of endometriosis. Conclusion: Adenomyosis affects endometrial vascularisation and epithelial-mesenchymal transition/mesenchymal-epithelial transition; thus, it can be the cause of irregular uterine bleeding or embryo implantation failure. The research and analysis of endometrial proteome could lead to the new ways of adenomyosis treatment.


Author(s):  
Heni Sulistiani ◽  
Ahmad Ari Aldino

In pandemic era, almost everyone struggles for their life. College students are such example. They have difficulty in paying tuition fee to continue their study. Based on this problematic situation, Universitas Teknokrat Indonesia grants the students who have good academic performance with tuition fee aid program. Many variables used for determining the grant made it hard to make a decision in a short time or even takes very long time. To make it easier for management to decide who is the right student to get grant, it needs classification model. The purpose of this study is the classification of grant recipients by using decision tree C4.5 algorithm. That can determine whether a potential student can be accepted as an awardee or not. Then, the results of the classification are validated with ten-fold cross validation with an accuracy, precision and recall with the score of 87 % for all part. It means the model perform quite well to be implemented into system.


Author(s):  
Hananda Hafizan ◽  
Anggita Nadia Putri

One of the health problems in Indonesia is the problem of nutritional status of children under five years. Cases of malnutrition are not only a family problem, but also a state problem. The nutritional status of children under five years can be assessed by measuring the human body known as "Anthropometry". To be able to carry out anthropometric examinations and measurements in order to find out the nutritional status of children under five, they can go to public health service places such as the Posyandu. We went to the KENANGA Posyandu located in Wonorejo, Kerasaan sub-district, Simalungun district. The purpose of this study will be to test the model for the classification of nutritional status of children under the WHO-2005 reference standard by utilizing data mining techniques using the Decision Tree method C4.5 Algorithm.


Author(s):  
Deden Istiawan ◽  
Laelatul Khikmah

Watershed is a complex system that is built on physical systems, biological systems and human systems that are related to each other. Each component has a distinctive nature and its existence is related to other components so as to form a unified ecosystem. Land use that does not pay attention to the conservation requirements of land and water causes land degradation which ultimately results in critical land. The impact of critical land is not only the withdrawal of soil properties, but also results in a decrease in production functions. Prediction of the critical level of land is needed to reduce the level of damage to the watershed, so that it can be used for policy making by the relevant agencies. In this research C4.5 algorithm will be applied to predictions of critical land in agricultural cultivation areas using critical land parameters. Based on the results of the research on critical land classification of agricultural cultivation areas in the jratun pemali watershed it can be concluded that the C.45 algorithm can be implemented to predict critical land in agricultural cultivation areas with an accuracy rate of 92.47%.


2019 ◽  
Vol 4 (5) ◽  
Author(s):  
M.rudi Gunawan Parozak ◽  
Fadma Rosita

This study aims to determine the response of students to the academic administration services to the students of class 9 in junior LAB Hamzanwadi Pancor , and aspects of what has the most excellent response and aspects that need to be improved from the manager. The method of research this is a study case with qualitative research in Intitiu Global Nusantara Education (IPNG) . The data source used was 9th grade students , Administration, and document sources in the form of Academic Guidelines for Junior High School LAB 2019 . Data obtained from interviews with source triangulation techniques and triangulation methods. Analysis of the data is done with meaning through the following phases: the data collection , the data reduction, data display , and data verification. Research findings on aspects of academic administration services in SMP LAB Hamzanwadi Pancor in general, students stated quite well. In the aspect of learning by teachers in the classroom are generally well categorized. Expectations on administrative and academic services indicate that there are still many aspects that need to be improved and need to get clear supervision and continuous controlled maintenance. The aspects that have the best response are the aspects of personality, communication, mastery of learning material , learning plans and learning strategies. While aspects that still need to be improved are the problem of wify ( hotspot ) and the availability of learning facilities in the classroom and in the Library.


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