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All Journal Jurnal Ilmiah Pangabdhi Jurnal Ekonomi dan Bisnis Islam BAREKENG: Jurnal Ilmu Matematika dan Terapan JAMBURA JOURNAL OF PROBABILITY AND STATISTICS
Previan, Anggara Teguh
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Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Energy Engineering Environmental Science Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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DETERMINANT OF CUSTOMER LOYALTY FOR BANK SYARIAH INDONESIA AFTER M&A ACTIVITY BASED ON CONFIRMATORY FACTOR ANALYSIS Mardianto, M. Fariz Fadillah; Cahyono, Eko Fajar; Previan, Anggara Teguh; Fitrianingsih, Eka Rani; Fauzan, Muhammad Hafid
Jurnal Ekonomi dan Bisnis Islam (Journal of Islamic Economics and Business) Vol. 9 No. 2 (2023): JULY - DECEMBER 2023
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jebis.v9i2.48051

Abstract

Introduction: The government of Indonesia consolidated three state-owned Islamic banks to become Bank Syariah Indonesia. Customer loyalty is affected by merger operations. The goal of this study was to look at how operational integration variables, information technology integration, bank location, service quality, bank human resource quality, and product quality affected customer loyalty at BSI's predecessor banks (Bank Syariah Mandiri, BNI Syariah and BRI Syariah). Methods: Primary data was collected using a questionnaire tool. Confirmatory Factor Analysis was employed as the analytical method. Results: Consumer loyalty to BSI post the merger is influenced by a number of variable aspects, according to the study's findings. All operational integration variables, IT integration, bank location, service quality, HR quality, and product quality have a major effect on BSI customer loyalty, but the operational integration variables, IT integration, and product quality have the most significance. Conclusion and suggestion: BSI perform operational integration, fast and good IT integration, and has better product quality than before the merger, the most influencing factor for customers to be loyal to BSI is when BSI performs operational integration, fast and good IT integration, and has better product quality than before the merger.
Peningkatan Kualitas UMKM Wonorejo Madiun Sebagai Dasar Pengembangan Wisata Budaya Mardianto, M. Fariz Fadillah; Amelia, Dita; Pusporani, Elly; Rani, Lina Nugraha; Siregar, Naufal Ramadhan Al Akhwal; Nurrohmah, Zidni ‘Ilmatun; Previan, Anggara Teguh; Putri, Ferdiana Friska Rahmana
Jurnal Ilmiah Pangabdhi Vol 10, No 2: Oktober 2024
Publisher : LPPM Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/pangabdhi.v10i2.24394

Abstract

Wonorejo Village is one of the villages in Madiun Regency which has natural and cultural potential that can be integrated into local economic development through MSMEs and the tourism sector. MSME empowerment activities provide opportunities for local communities to create jobs and achieve Sustainable Development Goals (SDGs) in maintaining economic stability. By focusing on improving the quality of MSMEs and through appropriate mentoring activities, this village can achieve inclusive and sustainable economic development. This activity aims to provide counseling and assistance regarding digitalization of MSME marketing integrated with the potential of Wonorejo Village as a tourist village for Wonorejo Temple tourism. The method of community service consists of several stages. First, provide assistance regarding product design and marketing aspects. Second, regarding training in digitalizing MSMEs from creating social media for MSME products. Third, in the form of training in obtaining permits, business legality and halal certification. Fourth, in the form of mentoring and evaluation activities during the mentoring and training process. The results of this community service, namely counseling and assistance to MSMEs in Wonorejo Village, have a positive effect on increasing the products of MSMEs in Wonorejo Village. Recommendations and sustainability that can be given are increasing the role of the Wonorejo Village community in developing tourism because of the resources and quality of the village's MSMEs so that they are able to encourage success as a tourist village from the community service activities that have been carried out.
SURVIVAL FUNCTION AND HAZARD FUNCTION ANALYSIS OF EXPONENTIAL DISTRIBUTION IN TYPE I CENSORED SURVIVAL DATA: A CASE STUDY OF BREAST CANCER PATIENTS Kurniawan, Ardi; Previan, Anggara Teguh; Nurrohmah, Zidni Ilmatun
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 17 No 3 (2023): BAREKENG: Journal of Mathematics and Its Applications
Publisher : PATTIMURA UNIVERSITY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/barekengvol17iss3pp1795-1802

Abstract

Breast cancer is the most common cancer in women and the leading cause of cancer-related death in Indonesia. Analysis of survival data is important for improving the treatment and care of breast cancer patients. This study aims to estimate the parameters, find the survival function, and hazard function of breast cancer patients using a parametric method with an exponential distribution. Previous studies have shown that the Maximum Likelihood Estimation (MLE) method is suitable for estimating the survival function from exponential survival data by censoring. In this study, the exponential distribution was found to be the best for data on breast cancer patients from Surabaya Ontology Hospital. The estimated parameters are θ = 33.9157, and the survival function is calculated using The estimated hazard function for patient death or failure is 0.0295. The results of this study can contribute to the development of better treatment and care strategies for breast cancer patients. However, further research is needed because this study only used monthly time units.
Bayes Estimator of Exponential Distribution Parameters of Type II Censored Data with Linear Exponential Loss Function Method Based on Jeffrey Priors Previan, Anggara Teguh; Kurniawan, Ardi; Mardianto, M. Fariz Fadillah; Sediono, Sediono
Jambura Journal of Probability and Statistics Vol 4, No 2 (2023): Jambura Journal Of Probability and Statistics
Publisher : Department of Mathematics, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjps.v4i2.22549

Abstract

Survival analysis is often used in the application of analyzing the survival of an object such as living things or objects. This analysis is identical to data censoring which is divided into three, namely: type I, II, and III censored data. Type II censored data is data censoring done by determining the number of objects to be analyzed  from the total number of observation objects . Type II censored data is used when the analysis is intended to maximize the results of the analysis. Bayesian Linear Exponential (LINEX) loss function is one method that can be used to estimate parameters in survival analysis by minimizing the expected value of LINEX. The purpose of this study is to determine the Bayesian LINEX loss function parameter estimation on type II censored data using exponential distribution. This method uses the concept of posterior distribution and prior distribution. The prior distribution used is the Jeffrey prior distribution which has objective properties and is based on Fisher information theory The application of the parameter estimation results is carried out on the survival data of lung cancer patients obtained from the North Central Cancer Treatment Group. Based on the results of parameter estimation, it is concluded that the greater the value of the controller  (a) can produce a smaller value of parameter estimation results (θ^) . The results of this study can be used as a reference in conducting survival tests using type II censored exponential distribution data using the LINEX loss function method based on Jeffrey priors.
Co-Authors Ardi Kurniawan Dita Amelia Eko Fajar Cahyono, David Kaluge Elly Pusporani Fauzan, Muhammad Hafid Fitrianingsih, Eka Rani M. Fariz Fadillah Mardianto Nurrohmah, Zidni Ilmatun Nurrohmah, Zidni ‘Ilmatun Putri, Ferdiana Friska Rahmana Rani, Lina Nugraha Sediono, Sediono Siregar, Naufal Ramadhan Al Akhwal