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International Journal of Natural Science and Engineering

IJNSE
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Published by Universitas Pendidikan Ganesha

ISSN : 26151383 EISSN : 25496395 DOI : -

Core Subject : Engineering,

Engineering

International Journal of Natural Sciences and Engineering (IJNSE) is an independent, quarterly basis online & print version, open access, peer reviewed, non-profit journal that publishes original research, short communications, review articles or essays, and book reviews relevant to Natural Sciences and Engineering. IJNSE is published by the Universitas Pendidikan Ganesha (Undiksha), Indonesia.

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Articles 5 Documents

Search results for , issue "Vol. 1 No. 2 (2017): July" : 5 Documents clear

MEDIA GEOGEBRA DALAM PEMBELAJARAN MATEMATIKA Ngurah Japa; I Made Suarjana; Wayan Widiana
International Journal of Natural Science and Engineering Vol. 1 No. 2 (2017): July
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

The aims of research are : (1) for knowing the differences in the result of geometry learning between the student that follow realistic mathematic education by media geogebra and the student that follow conventional learning, (2) The interaction between realistic mathematic education by media geogebra with spatial ability related geometry learning, (3) The differences in the result result of geometry learning between the student that follow realistic mathematic education by media geogebra and the student that follow conventional learning in the group of student have the high of spatial ability, (4) The differences in the result of geometry learning between the student that follow realistic mathematic education by media geogebra and the student that follow conventional learning in the group of student have the low of spatial ability. The research in SMP N 2 Kuta Utara with the sample of the population amounted to 110 eighth of all students in grade VIII in learning year of 2013/2014 is as many as 330 students. The type of research is ouasi eksperiments. Before taking samples ANOVA test equality with one way. As for the data analysis carried out tests of normality and homogeneity of variance test. And then the date of spatial and the research of geometry learning with use by descriptive statistic and Anava with two way. Based on the result of analysis found the result as following : (1) Have the differences in the result of geometry learning between the the student that follow realistic mathematic education by media geogebra and the student that follow conventional learning by grade VIII at SMP N 2 Kuta Utara, (2) Have interaction realistic mathematic education by media geogebra with spatial ability for the result of geometry learning in grade VIII SMP N 2 Kuta Utara (F = 5,937 (p < 0,05), (3) Have the significant difference on the result of geometry learning between the student that follow realistic mathematic education by media geogebra and the student that follow conventional learning in the group of student have the high of spatial ability in SMP N 2 Kuta Utara, (4) Have the significant difference on the result of geometry learning between the student that follow realistic mathematic education by media geogebra and the student that follow conventional learning in the group of student have the low of spatial ability in SMP N 2 Kuta Utara.

PEMETAAN AKTIFITAS KONSUMEN TOKO MENGGUNAKAN METODE BACKGROUND SUBTRACTION I Made Edy Listartha; Gede Indrawan; Kadek Yota Ernanda Aryanto
International Journal of Natural Science and Engineering Vol. 1 No. 2 (2017): July
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

This study aims to heat mapping the consumer’s movement using background subtraction techniques. The mapping is built using the coordinate information obtained from the consumer location that detected from the video where the separation of the consumer object and the background is done by background subtraction technique. Tests were performed on eleven video of consumer data activity that have different activity characteristics that were created using Microsoft PowerPoint application. Simulated activities include walking straight, staying, walking back to the path that had been passed, pacing, disturbance from another object, the influence of color, the consumer walks meet and coincide with other consumers. From the test of video discovery is obtained accuracy of 96.07% for the detection process of consumer movement, where the lack of detection process occurs due to the absence of techniques used to perform the introduction of characteristics of consumer objects. The mapping process is very much in line with the number of coordinates generated in the motion detection process, but the inaccurate detection of movement in the entrance and exit areas makes the coordinates high. By filtering with Region of Interes (ROI) in the survey area, creating disturbances in the area of doors and areas with objects that produce movements other than consumers can be eliminated.

ANALISIS KEBERMANFAATAN WEBSITE SEKOLAH TINGGI PARIWISATA (STIPAR) TRIATMA JAYA MENGGUNAKAN METODE USABILITY TESTING Ni Luh Putu Ratih Indriyani; Gede Rasben Dantes; Kadek Yota Ernanda Aryanto
International Journal of Natural Science and Engineering Vol. 1 No. 2 (2017): July
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

This research is aimed to determine the results of the usability analysis from the website Sekolah Tinggi Pariwisata (STIPAR) Triatma Jaya viewed from the user side as well as knowing the recommendation of website improvement of Sekolah Tinggi Pariwisata (STIPAR) Triatma Jaya from usability aspect. The methods used are Usability Testing of Performance Measurement and Retrospective Think Aloud (RTA) techniques and the dissemination of SUS questionnaires. The results showed that the Sekolah Tinggi Pariwisata (STIPAR) Triatma Jaya still not effective, it is seen from the error or mistake made by users of lecturers and students while doing the task. Statistically website Sekolah Tinggi Pariwisata (STIPAR) Triatma Jaya has been efficient for lecture but not efficient for college students users. For lecturers there are 6 out of 10 tasks that do not have significant time difference, while for college students there are 4 out of 10 tasks that do not have significant time difference. From the aspect of user satisfaction, both lecturers and college students feel still less satisfied using the website of Sekolah Tinggi Pariwisata (STIPAR) Triatma Jaya, this can be seen from the SUS questionnaire scores of lecturers of 63.28 and college students users of 58.44. Based on the analysis result, it can be concluded that the Sekolah Tinggi Pariwisata (STIPAR) Triatma Jaya has not fulfilled the criteria of products that have good usability, because the three aspects (effectiveness, efficiency and user satisfaction) have not been met. Based on the above, the recommendation of Sekolah Tinggi Pariwisata (STIPAR) Triatma Jaya website is focused on adjustment of display, language and term change, feature addition, menu name adjustment, menu structure and menu layout, content addition and menu simplification. Repairs done by making wireframe recommendation page Sekolah Tinggi Pariwisata (STIPAR) Triatma Jaya.

IMPLEMENTASI METODE C4.5 DAN NAIVE BAYES BERBASIS ADABOOST UNTUK MEMPREDIKSI KELAYAKAN PEMBERIAN KREDIT Putu Gede Surya Cipta Nugraha; Gede Rasben Dantes; Kadek Yota Ernanda Aryanto
International Journal of Natural Science and Engineering Vol. 1 No. 2 (2017): July
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

At PT. BPR XYZ credit problems is a very vital issue, where if many debtors are delinquent in payment it will increase the NPL value of the bank itself. Increasing the NPL value above 5% indicates that the bank is not healthy. From the above problems, then in this study aims to perform the implementation process of data mining methods to determine the accuracy level of prediction of creditworthiness at PT. BPR XYZ, so that the future of credit problems can be overcome. Data mining methods used in the prediction process are C4.5 and Naïve Bayes methods, where both methods are implemented and the accuracy level comparison process is used to see which method is more accurate in predicting creditworthiness. Both methods are also embedded AdaBoost method with the aim of increasing the accuracy in the process of prediction of creditworthiness feasibility. The result obtained from the comparison of method accuracy level, stated that the better accuracy is C4.5 method that is 90.00% with the precision level of 86.67%. As for the accuracy of Naïve Bayes method that is equal to 70.00% with the precision level of 79.71%. Then with the addition of AdaBoost method in predicting creditworthiness proved to increase the higher accuracy value of 91.54% in method C4.5 and by 78.13% in Naïve Bayes method. From the description above, with the implementation of AdaBoost method on the method of C4.5 and Naïve Bayes can improve the accuracy of the prediction of creditworthiness of PT. BPR XYZ. In addition, the implementation of the AdaBoost-based C4.5 method can be a recommendation for PT. BPR XYZ in conducting predictive process of credit worthiness in the future.

TRANSFORMASI SOSIO – SPASIAL BERBASIS PARIWISATA DI DESA TEMUKUS Nyoman Tri Wahyuningsih; I Putu Ananda Citra; Putu Indra Christiawan
International Journal of Natural Science and Engineering Vol. 1 No. 2 (2017): July
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

The research was conducted in Temukus Village, which aims to: (1) analyze the physical transformation based on tourism, (2) analyze the socio-economic transformation based on tourism. This research uses qualitative research. The number of subject sample to 53 house hold. Which determined by purposive sampling. Data collecting using observation technique, interview, and documentation The data are analyzed by qualitative technique. The result of research indicate that: (1) there is a physical transformation of tourism accomodation in Temukus village from 2012 and 2016 that aqual to 105% which is categorized high, and infrastructure transformation in the long road change of 204% which are categorized as high. The high physical transformation is due to the increasing number of investors or private parties who want to build tourism accommodation, as well as the many people who sell land, especially agricultural land that will be used for the construction of tourism accommodation in Temukus Village. (2) There is a socio-conomic transformation of livelihoods change in Temukus Village from 2012 and 2016 a mounted to 85.21% which is categorized high, while revenue transformation from 2012 and 2016 is 22.24% which categorized as low. The transformation Livelihoods that categorized high due to the increasing number of Temukus village who are involved in tourism industry, in addition there are several other reasons such as the desire to change the fate. Towards the better and the desire to seek new experiences in the tourism industry.

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