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All Journal EKSAKTA: Journal of Sciences and Data Analysis TONGKONAN: Jurnal Pengabdian Masyarakat Journal of Mathematics, Computation and Statistics (JMATHCOS)
Trigarcia Maleachi Randa
Universitas Hasanuddin
Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Social Sciences

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Pemodelan Proporsi Kasus Tuberkulosis di Sulawesi Selatan Menggunakan Sparse Least Trimmed Squares Trigarcia Maleachi Randa; Georgina Maria Tinungki; Nurtiti Sunusi
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 3, ISSUE 2, August 2022
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/EKSAKTA.vol3.iss2.art6

Abstract

The deadliest infectious disease in Indonesia is tuberculosis (TB), and South Sulawesi is one of the provinces that contributed the most tuberculosis cases in Indonesia in 2018 with 84 cases per 100,000 population. This study aims to identify variables that could explain the proportion of TB cases in South Sulawesi. The data used has many explanatory variables, and there are outliers. Sparse Least Trimmed Squares (LTS) analysis can be used to handle data that has many explanatory variables and outliers. The resulting sparse LTS model successfully selects and shrinks the variables to 14 variables only. In addition, based on the value of R2 and RMSE for the model evaluation, the sparse LTS shows satisfying results rather than classical LASSO. The government can focus on these factors if they want to reduce the proportion of TB cases in South Sulawesi.
Penerapan LASSO Least Trimmed Squares untuk Mengidentifikasi Peubah yang Berpengaruh Penyebaran Penyakit di Sulawesi 138 Selatan Randa, Trigarcia Maleachi; Tinungki, Georgina Maria; Sunusi, Nurtiti
Journal of Mathematics, Computations and Statistics Vol. 6 No. 2 (2023): Volume 06 Nomor 02 (Oktober 2023)
Publisher : Jurusan Matematika FMIPA UNM

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Abstract

Tuberculosis is a chronic infectious disease which is still a public health problem in the world.Indonesia is a country with the third highest tuberculosis burden after India and China. South Sulawesi isone of the provinces that contributes to the high number of tuberculosis cases in Indonesia in 2020. Linearregression analysis can be applied to tuberculosis data to determine the variables that affect the numberof tuberculosis cases in South Sulawesi. Problems that often arise in regression analysis aremulticollinearity problems and outliers in the data. One method that can be used to solve multicollinearityand outlier problems is the LASSO LTS regression. The LASSO LTS regression is a modification of theLASSO regression method based on the LTS estimator of joint regression. The variables in the tuberculosisdata in South Sulawesi have multicollinearity problems and there are outliers, so in this study an approachwith the LASSO LTS method was used to overcome them. The results showed that the LASSO LTS methodcould overcome multicollinearity and outlier problems in estimating regression parameters as evidencedby the highest coefficient of determination of 89.41%.
Pemberdayaan Siswa SMA Taruna Kasuari Nusantara Manokwari Melalui Pelatihan Akademik Berbasis CAT Untuk Persiapan Sekolah Kedinasan Nurhaida; Sesa, Junianto; Randa, Trigarcia Maleachi; Muhlis, La Ode; Hilum, Rium; Monim, Harina Orpa Lefina; Matulessy, Esther Ria; Lubis, Loria Amisah
TONGKONAN: JURNAL PENGABDIAN MASYARAKAT Vol 4 No 1 (2025): Tongkonan: Jurnal Pengabdian Masyarakat
Publisher : FKIP UKI TORAJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47178/ba987w67

Abstract

SMA Taruna Kasuari Nusantara Manokwari merupakan sekolah yang tergolong baru dan memiliki semangat tinggi dalam mendorong siswanya untuk melanjutkan pendidikan ke jenjang lebih tinggi, termasuk ke sekolah kedinasan. Namun, masih terdapat kendala dalam kesiapan siswa menghadapi ujian berbasis Computer Assisted Test (CAT) yang menjadi metode seleksi utama dalam penerimaan sekolah kedinasan. Kegiatan pengabdian ini bertujuan untuk memberdayakan siswa melalui pelatihan akademik berbasis CAT guna meningkatkan kemampuan berpikir, pemahaman, dan penalaran dalam menyelesaikan soal-soal seleksi. Metode pelaksanaan kegiatan meliputi penyusunan soal simulasi CAT, pelatihan penggunaan sistem CAT, serta evaluasi hasil tes. Hasil kegiatan menunjukkan peningkatan pemahaman siswa terhadap format dan strategi mengerjakan soal berbasis CAT, serta meningkatnya motivasi siswa untuk mengikuti seleksi sekolah kedinasan. Kegiatan ini disambut baik oleh pihak sekolah dan siswa, serta direkomendasikan untuk dijadikan program rutin sebagai bagian dari pembinaan prestasi akademik.
Co-Authors Georgina Maria Tinungki Hilum, Rium Lubis, Loria Amisah Matulessy, Esther Ria Monim, Harina Orpa Lefina Muhlis, La ode Nurhaida, . NURTITI SUNUSI Sesa, Junianto