Pemilihan Variabel pada Model Geographically Weighted Regression

Regression analysis is a statistical analysis that aims to model the relationship between response variable with some predictor variables. Geographically Weighted Regression (GWR) is statistical method used for analyzed the spatial data in local form of regression. One of the problems in GWR is how to choose the significant variables. The number of predictor variables will allow the violation of assumptions about the absence of multicollinearity in the data. Therefore, this needs a method to reduce some of the predictor variables which not significant to the response variable. This paper will discuss how to select significant variables by stepwise method. This method is a combination of forward selection method and the backward elimination method

Upaya Strategis Pemberdayaan Ekonomi Masyarakat Melalui Kelompok USAha Bersama (Kube)

Penelitian ini bertujuan untuk mengidentifikasi potensi dan permasalahan yang ada pada program kelompok USAha bersama (KUBE) di Desa Kuala serta menjelaskan upaya strategis dalam pemberdayaan masyarakat melalui kelompok USAha (KUBE) di Desa Kuala. Penelitian ini dilakukan di Desa Kuala Kecamatan Kaidipan Kabupaten Bolaang Mongondow.Hasil penelitian menujukkan bahwa KUBE di desa kuala memiliki potensi, yang terdiri dari Cateringan, Perbengkelan, dan pertukangan meubel. Tetapi yang paling menonjol dan aktif sampai dengan saat ini adalah cateringan. Ada beberapa masalah yang di hadapi anggota kelompok dalam USAha, seperti: kurangnya modal USAha, masih belum terpenuhinya fasilitas yang di butuhkan serta alat-alat yang harus di sediakan. Untuk mengatasi permasalahan dalam kelompok USAha bersama (KUBE) diperlukan suatu strategi berupa: Sosialisasi, kebijakan Pemerintah dalam pengaturan KUBE yang sudah berjalan dan yang masih baru agar lebih cepat maju dan terarah dalam mengelola cateringan yang ingin dikembangkan

Estimasi Regresi Non Parametrik Dengan Metode Wavelet Shrinkage Neural Network Pada Model Rancangan Tetap

If X is a predictor variable and Y is a response variable of following model Y = g(X) +e with function g is a regression which not yet been known and e is an independent random variable with mean 0 and variant . The function of g can be estimated by parametric and nonparametric approach. In this paper, g is estimated by nonparametric approach that is named wavelet shrinkage neural network method. At this method, the smoothly function estimation is depending on shrinkage parameter's that are threshold value and level of wavelet that be used. It also depending on the number of neuron in the hidden layer and the number of epoch that be used in feed forward neural network. Therefore, it is required to be select the optimal value of threshold, level of wavelet, the number of neuron and the number of epoch to determine optimal function estimation

Factors Affecting Nurses’ Job Satisfaction in Rural and Urban Acute Care Settings: A PRISMA Systematic Review

This review aims to systemically describe the findings of primary studies in order to identify the intrinsic and extrinsic factors that affect nurses’ job satisfaction using PRISMA guidelines. It also aims to analyze the finding according to the two-factor theory; and compare studies based on rural and urban settings. Two reviewers completed study selection, screening, and quality assessment. After data extraction, content analysis was used to categorize identified factors into themes. Thirty-eight studies were selected for this review. Extrinsic factors reported in the findings were: work conditions (n=17), monetary benefits (n=5), hospital policies (n=6), supervision (n=7), interpersonal relationships (n=8), organization culture and emotional display norms in the organization (n=2), job security (n=1), and professional status (n=2). Intrinsic factors reported in review were responsibility (n=9), growth and advancement (n= 7), psychological demands (n=2), recognition (n=2), and job achievement (n=1). Furthermore, personal factors were classified into demographic variables, and behavioral/emotional factors and each of them reported in seven studies. Two studies reported community factors. Twenty-two studies reported the hospital location. Urban studies focused on extrinsic factors while there was more balance in rural studies. There have been many published studies discuss the factors associated with nurses’ job satisfaction. However, more studies are needed to examine the impact of intrinsic and extrinsic factors on nurses’ job satisfaction using more robust research methodology especially in rural and urban context. The two-factor theory can be used to provide conceptual clarity regarding the impact of intrinsic and extrinsic factors on job satisfaction

Testing robustness of relative complexity measure method constructing robust phylogenetic trees for Galanthus L. Using the relative complexity measure

Background: Most phylogeny analysis methods based on molecular sequences use multiple alignment where the quality of the alignment, which is dependent on the alignment parameters, determines the accuracy of the resulting trees. Different parameter combinations chosen for the multiple alignment may result in different phylogenies. A new non-alignment based approach, Relative Complexity Measure (RCM), has been introduced to tackle this problem and proven to work in fungi and mitochondrial DNA. Result: In this work, we present an application of the RCM method to reconstruct robust phylogenetic trees using sequence data for genus Galanthus obtained from different regions in Turkey. Phylogenies have been analyzed using nuclear and chloroplast DNA sequences. Results showed that, the tree obtained from nuclear ribosomal RNA gene sequences was more robust, while the tree obtained from the chloroplast DNA showed a higher degree of variation. Conclusions: Phylogenies generated by Relative Complexity Measure were found to be robust and results of RCM were more reliable than the compared techniques. Particularly, to overcome MSA-based problems, RCM seems to be a reasonable way and a good alternative to MSA-based phylogenetic analysis. We believe our method will become a mainstream phylogeny construction method especially for the highly variable sequence families where the accuracy of the MSA heavily depends on the alignment parameters

Analisis Variabel Kanonik Biplot Untuk Bank Umum Di Jawa Tengah

Bank Competition in Indonesia increase due to good economic growth and the improvement of the social middle class in Indonesia. Increased bank raises the fierce competition between banks and internal banks themselves. This makes the management of the bank should work seriously to maintain its existence. In this case the assessment of the bank become very important in the banking business to survive in today's banking industry. This study was conducted to determine the competitive commercial banks operating in Central Java with the Canonical Variate Analysis (CVA) Biplot. This analysis can be applied to find out information about the relative position, the similarity between the object characteristics and diversity of variables in the three groups of commercial banks in Central Java, namely state-owned banks, private banks and private banks Non Foreign Exchange, based on the health aspects of the bank. The results obtained are the banks in each group had different characteristics shown in the relative position of the already well-separated in the resulting biplot. Variables that tend to influence the grouping of commercial banks are Capital Adequacy Ratio (CAR). The total assets is variable with the highest level of prediction accuracy on each bank

Prediction of Weekly Rainfall in Semarang City Use Support Vector Regression (SVR) with Quadratic Loss Function

Semarang city is one of the busiest city in Indonesia. Doe to its role as the capital city of Central Java, Semarang is known as having a relativity high rate economic activities. The geographic of Semarang city bordered by the Java sea, thus whenever the rainfall is high, there could be flood at certain area. Therefore, prediction of rainfall is very important. Support vector machine (SVM) is one of the most popular methods in nonlinear approach. One of the branches of this method for prediction is support vector regression (SVR). SVR can be approached by quadratic loss function. The study is focus on Semarang rainfall prediction during 2009 to 2013 using several kernel function. Kernel Function can provide optimal weight Some of kernel functions are linear, polynomial, and Radial Basis Function (RBF). Using this method, the study provide 71.61% R-square in the training data, for C parameter 2 with polynomial (p=2), and 71.46% R-square for the testing dat

Pemetaan Penyakit Demam Berdarah Dengue dengan Analisis Pola Spasial di Kabupaten Pekalongan

The number of dengue haemorrhagic fever (DHF) incidence in Pekalongan from year to year is very volatile. In 2006, there was 352 cases, 718 cases occurred in 2007, 2008 saw 403 cases, 2009 there were 753 cases, whereas in 2010 a decline to 223 cases. This is possible due to the lack of information about the place, time and location of the incident spread of dengue in Pekalongan. Various efforts have been made to address these issues both society and government but the incidence of this disease has not been effectively suppressed. The results of data analysis showed that the incidence of dengue in Pekalongan mostly occurs during the rainy season is the period from January to June. The DHF incidence tends to be higher in Kedungwuni. Highest incidence of DHF occurred in April 2010. In addition, there are some months that indicate the spatial relationships in the incidence of dengue in Pekalongan, ie January, February, July, October and December. The sub-district that has a positive autocorrelation is Kedungwuni, Wonopringgo, and Tirto. While the sub-district has a negative autocorrelation is Karangdadap. Most of the sub-districts in Pekalongan status is still endemic for dengue