Jurnal Varian最新文献_第5页

Analisis Portofolio Investasi dengan Metode Multi Objektif 多客观的投资组合分析

Jurnal Varian Pub Date : 2019-10-30 DOI: 10.30812/varian.v3i1.476

Gilang Primajati, A. Amrullah, Ahmad Ahmad

{"title":"Analisis Portofolio Investasi dengan Metode Multi Objektif","authors":"Gilang Primajati, A. Amrullah, Ahmad Ahmad","doi":"10.30812/varian.v3i1.476","DOIUrl":"https://doi.org/10.30812/varian.v3i1.476","url":null,"abstract":"In the formation of an efficient portfolio, many methods can be used. Of course with its own assumptions and advantages. In the process, reasonable investor assumptions tend to be risk averse. Investors who are risk averse are investors who, when faced with two investments with the same expected return, will choose an investment with a lower risk level. If an investor has several efficient portfolio choices, then the most optimal portfolio will be chosen. Optimal portfolio with mean-variance efficient portfolio criteria, investors only invest in risky assets. Investors do not include risk free assets in their portfolios. Mean-variance efficient portfolio is defined as a portfolio that has a minimum variance among all possible portfolio that can be formed, at the mean level of the same expected return. The mean variant method of the two constraints can be used as a basis in determining the optimal portfolio weight by minimizing the risk of portfolio return with two constraints. In this article the problem referred to is symbolized by lamda and beta. With this two-constraint method, the results obtained are more detailed so that they can describe the results of a sharper analysis for an investor.","PeriodicalId":188119,"journal":{"name":"Jurnal Varian","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129437992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Implementasi Algoritma Sequential dan Welch Powell pada pewarnaan graf (studi kasus pewarnaan peta kota Makassar)

Jurnal Varian Pub Date : 2019-10-30 DOI: 10.30812/varian.v3i1.488

Muhammad Ammar

{"title":"Implementasi Algoritma Sequential dan Welch Powell pada pewarnaan graf (studi kasus pewarnaan peta kota Makassar)","authors":"Muhammad Ammar","doi":"10.30812/varian.v3i1.488","DOIUrl":"https://doi.org/10.30812/varian.v3i1.488","url":null,"abstract":"The aim of this research is how to implement Sequential algorithm and Welch Powell algorithm on graph coloring, especially on Makassar city map coloring. The research method used was a case study aimed at searching information in the form of a map of Makassar city. The first step is to take a colored map of Makassar city at the Dinas tata ruang kota makassar, then redraw it with the help of Corel Draw X7 software, so there are no colors. The next step is to represent the map in graph form by taking the region (sub-district) as a node and then doing graph coloring using Sequential algorithm and Welch Powell algorithm. The results of coloring the Makassar city map using Sequential algorithm and Welch Powell algorithm, both produce chromatic numbers χ (G) = 4 or the number of colors produced to color a graph there are 4 colors. The colors used are red, yellow, green and blue. Then from the results of coloring this graph can easily be applied to color the map of the city of Makassar based on the coloring requirements obtained. Because it has the same chromatic numbers, it can be concluded that the Sequential algorithm is no better than the Welch Powell algorithm, or vice versa the Welch Powell algorithm is no better than the Sequential algorithm for the case of coloring the Makassar city map. The previous Makassar city map coloring or without the algorithm, produces chromatic numbers χ (G) = 12 or the number of colors produced to color a graph there are 12 colors. So that the two algorithms are much better at coloring than the previous Makassar city map coloring or without the algorithm \u0000 ","PeriodicalId":188119,"journal":{"name":"Jurnal Varian","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128709154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pengembangan Media Pembelajaran Matematika Interaktif Berbasis Android Pada Materi Dimensi Tiga Kelas X SMA 以Android为基础的综合数学学习媒体开发的高X级的三维材料

Jurnal Varian Pub Date : 2019-10-30 DOI: 10.30812/varian.v3i1.487

Doni Dwiranata, Dewi Pramita, Syaharuddin Syaharuddin

{"title":"Pengembangan Media Pembelajaran Matematika Interaktif Berbasis Android Pada Materi Dimensi Tiga Kelas X SMA","authors":"Doni Dwiranata, Dewi Pramita, Syaharuddin Syaharuddin","doi":"10.30812/varian.v3i1.487","DOIUrl":"https://doi.org/10.30812/varian.v3i1.487","url":null,"abstract":"Abstract: This study aims to develop and produce android-based mathematics learning media on the subject of three dimensions of point, line, and field positions in space, for class X high school students and find out the validity, effectiveness, and practicality of interactive multimedia-based learning media. This type of research is a research development in the form of a three dimensional interactive learning media. Media development refers to the ADDIE development model which includes 5 stages, namely Analysis, Design, Development, Implementation, Evaluation. The subjects of this study were students of class X IPA and students of class X IPS SMA Negeri 1 Maronge. The instruments used in this study were questionnaire validation of material experts and media experts, student questionnaire responses, and student evaluation tests. The results of the development research are: (1) The results of the validation of the material and the media obtain an average score of 36 with the category \"quite valid\"; (2) The results of the effectiveness of the media in small group trials have achieved 100% mastery learning in the \"very effective\" category; (3) The results of the practicality of the media in small group trials obtained an average score of 57 in the \"very practical\" category; (4) The results of the effectiveness of the media in large group trials gained mastery learning reaching 80% with the category of \"effective\"; and (5) The practicality of the media in the large group test obtained an average of 54,485 in the \"practical\" category.","PeriodicalId":188119,"journal":{"name":"Jurnal Varian","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126373793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 25

Penerapan Support Vector Regression (Svr) Dalam Memprediksi Jumlah Kunjungan Wisatawan Domestik Ke Bali 支持向量回归(Svr)的应用可以预测国内到巴厘岛的旅游次数

Jurnal Varian Pub Date : 2019-10-30 DOI: 10.30812/varian.v3i1.506

Ni Putu Nanik Hendayanti, I. Suniantara, M. Nurhidayati

引用次数: 8

Analisa Struktur Dependensi Variabe Pembentukan Asuransi Pertanian Berbasis Indeks Cuaca dengan Multivariat Copula dan Vine Copula 分析基于气候因素的农业保险与多变量coalso和Vine co挂上的农作物保险结构

Jurnal Varian Pub Date : 2019-10-30 DOI: 10.30812/varian.v3i1.485

A. Hidayat

引用次数: 2

Analisis Faktor-Faktor yang Mempengaruhi Tingkat Kemiskinan Kabupaten dan Kota Provinsi Sulawesi Selatan

Jurnal Varian Pub Date : 2019-10-30 DOI: 10.30812/varian.v3i1.436

S. Suryati, M. Syukri

{"title":"Analisis Faktor-Faktor yang Mempengaruhi Tingkat Kemiskinan Kabupaten dan Kota Provinsi Sulawesi Selatan","authors":"S. Suryati, M. Syukri","doi":"10.30812/varian.v3i1.436","DOIUrl":"https://doi.org/10.30812/varian.v3i1.436","url":null,"abstract":"The purpose of this study is to analyze the factors that influence the poverty rates in the Regencies and Cities of South Sulawesi Province. This type of research is applied research with secondary quantitative data. The data used in this study are secondary data obtained by the Central Statistics Agency (BPS) including population data; PDRB per capita; AMH, AHH, and the poverty rates of Regencies and Cities in South Sulawesi in 2019. Based on the results of the study it can be concluded that the population, per capita GRDP, AMH and AHH simultaneously affect the poverty rates of Regencies and Cities in South Sulawesi. Whereas, partially per capita GRDP variable and AMH variable significantly influence the poverty rates of Regencies and Cities in South Sulawesi. With the coefficient of determination each variable has a contribution to the poverty rate of 57.7% and the remaining 42.3% is influenced by other indicators not yet examined. The suggestions for the improvement and development of subsequent research is by adding other variables that can affect poverty rates. With the hope that there will be efforts from all parties, especially the local government, to present superior programs, for example the UMKM development program that can reduce poverty and have an impact on people's welfare.","PeriodicalId":188119,"journal":{"name":"Jurnal Varian","volume":"162 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127419299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Model Matematika Penyakti Diabetes Melitus 糖尿病的数学模型

Jurnal Varian Pub Date : 2019-04-30 DOI: 10.30812/VARIAN.V2I2.385

Muhamad Irwan, Irwan Irwan, Jusrawati Jusrawati

引用次数: 1

Ketidaktepatan Waktu Kelulusan Mahasiswa Universitas Terbuka dengan Metode Boosting Cart 大学学生的毕业时间不允许使用助推器方法

Jurnal Varian Pub Date : 2019-04-30 DOI: 10.30812/VARIAN.V2I2.361

Gede Suwardika, I. Suniantara, Ni Putu Nanik Hendayanti

{"title":"Ketidaktepatan Waktu Kelulusan Mahasiswa Universitas Terbuka dengan Metode Boosting Cart","authors":"Gede Suwardika, I. Suniantara, Ni Putu Nanik Hendayanti","doi":"10.30812/VARIAN.V2I2.361","DOIUrl":"https://doi.org/10.30812/VARIAN.V2I2.361","url":null,"abstract":"The classification tree method or better known as Classification and Regression Tree (CART) has capabilities in various data conditions, but CART is less stable in changing learning data which will cause major changes in the results of the classification tree prediction. Predictive accuracy of an unstable classifier can be corrected by a combination method of many single classifiers where the prediction results of each classifier are combined into the final prediction through the majority voting process for classification or average voting for regression cases. Boosting ensemble method is one method that combines many classification trees to improve stability and determine classification predictions. This research purpose to improve the stability and predictive accuracy of CART with boosting. The case used in this study is the classification of inaccuracies in the Open University student graduation. The results of the analysis show that boosting is able to improve the accuracy of the classification of the inaccuracy of student graduation which reaches a classification prediction of 75.94% which previously reached 65.41% in the classification tree.","PeriodicalId":188119,"journal":{"name":"Jurnal Varian","volume":"08 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132925906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Analisis Kestabilan dan Usaha Pemanenan Model Predator Prey Tipe Holling III dengan Keuntungan Maksimum 分析稳定和努力收获Prey型Holling III掠食者模型的最大优势

Jurnal Varian Pub Date : 2019-04-30 DOI: 10.30812/VARIAN.V2I2.373

D. Didiharyono, Muhamad Irwan

引用次数: 6

Pemodelan Kemisikinan di Indonesia dengan Generalized Method Momment Arellano dan Bond

Jurnal Varian Pub Date : 2019-04-30 DOI: 10.30812/VARIAN.V2I2.363

Arya Fendha Ibnu Shina

引用次数: 2