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All Journal M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika Jurnal Garuda Pengabdian Kepada Masyarakat
Hutagalung, Alya Azhrah
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Humanities Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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Forecasting Indihome Users By Using Trigonometrics, Box Cox, Transformation, Arma Error, Trend, And Seasonal (TBATS) Methods Hutagalung, Alya Azhrah; Sari, Rina Filia
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 9 No. 1 (2024): Mathline: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v9i1.579

Abstract

The rapid growth in the use of telecommunication services, particularly IndiHome, has created a pressing need to comprehend and forecast the dynamics of user growth. The swift development of IndiHome services in Pematangsiantar underscores the importance of efficiently forecasting and managing user growth. This research aims to predict future IndiHome users using the TBATS method (Trigonometrics, Box Cox Transformation, Arma Error, Trend, and Seasonal). User data for IndiHome services were obtained from Telekomunikasi Indonesia (Telkom) Pematangsiantar. The collected data underwent analysis and interpolation using the TBATS method. The choice of the TBATS method is attributed to its capability to handle complex patterns of seasonality, trends, and variability in telecommunication service usage data. The TBATS method involves model optimization and model validation using the Mean Absolute Percentage Error (MAPE). The forecasted results for IndiHome users in the next 5 years, with the highest IndiHome users reaching 426,9432, indicate a reasonable forecasting performance. The accuracy of the forecast, as measured by the MAPE calculation, ranges around 30.5%, signifying that the TBATS method demonstrates a satisfactory forecasting capability for IndiHome user data.
Mengukur Tingkat Efektivitas Google Drive Dengan Uji Chi Square Dan Cramer (C) Dalam Pengarsipan Dokumen Amdal Hutagalung, Alya Azhrah; Rahayu, Atika; Anggitasyah, Debi; Yunisa, Fahira Audri; Andini, Qonita Putri; Sari, Rina Filia
Jurnal Garuda Pengabdian Kepada Masyarakat Vol 1 No 1 (2023)
Publisher : Ali Institute of Research and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55537/gabdimas.v1i1.600

Abstract

Badan Lingkungan Hidup Provinsi Sumatera Utara adalah suatu dinas pada Pemerintah Provinsi Sumatera Utara yang bertugas melaksanakan segala tugas yang berkaitan dengan lingkungan hidup yang berada di bawah kewenangan dan tanggung jawab bantuan provinsi. Tantangan yang dimiliki Dinas Lingkungan Hidup Sumut adalah bagaimana mengelola dokumen AMDAL berupa file softcopy dengan menggunakan media penyimpanan Google Drive. Dalam upaya mengukur sejauh mana Google Drive berhasil sebagai media penyimpanan dokumen, mereka menggunakan Uji Chi Square dan Cramer Test (C), uji Cramer (C) digunakan untuk mengukur tingkat hubungan atau korelasi antara dua data. variabel dalam skala nominal, sedangkan uji Chi-square berguna untuk menguji hubungan atau pengaruh dua variabel dan mengukur kekuatan hubungan antara satu variabel dengan variabel lainnya. Nilai prediksi untuk setiap sel akan dicari di tabel kontingensi karena korelasi kontingensi dan Chi-Square berhubungan erat.
Co-Authors Andini, Qonita Putri Anggitasyah, Debi Rahayu, Atika Rina Filia Sari, Rina Filia Yunisa, Fahira Audri