https://ejournal.unib.ac.id/jsds <p>Established in 2022, Journal of Statistics and Data Science (JSDS) publishes scientific papers in the fields of statistics, data science, and its applications. Published papers should be research-based papers on the following topics: experimental design and analysis, survey methods and analysis, operations research, data mining, machine learning, statistical modeling, computational statistics, time series, econometrics, statistical education, and other related topics. All papers are reviewed by peer reviewers consisting of experts and academics across universities and agencies. This journal publishes twice a year, which are in March and October.</p> UNIB Press en-US Journal of Statistics and Data Science 2828-9986 https://ejournal.unib.ac.id/jsds/article/view/40904 <p>The Open Unemployment Rate (OUR) is the percentage value of the ratio of the number of open unemployed to the total labor force. During the 2017-2022 period, the OUR faced fluctuations that showed significant numbers that could have a negative impact on economic growth and community welfare. The purpose of this study is to determine the factors that affect OUR in West Sumatra Province in 2017-2022 using the Multivariate Adaptive Regression Splines (MARS) method. This research is an applied research with data in the form of secondary data obtained at the Central Bureau of Statistics (CBS) of West Sumatra Province. The analysis carried out produces the best model at the minimum Generalized Cross Validation (GCV) value of 1.31675 from a combination of BF = 28, MI = 2 and MO = 1 so that the factors that influence the percentage of OUR are gross regional domestic product at current prices, population, population aged 15 years and over who are in school, population aged 15 years and over who work with the main job, average monthly per capita expenditure on food, average monthly per capita expenditure on non-food and monthly minimum wage with R² adj of 81.6 percent.</p> Amesha Putri Pratama Devni Prima Sari Copyright (c) 2025 Amesha Putri Pratama, Devni Prima Sari https://creativecommons.org/licenses/by-sa/4.0 2025-10-30 2025-10-30 4 2 10.33369/jsds.v4i2.40904