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All Journal Journal of Science and Applicative Technology Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam RENATA Jurnal Pengabdian Masyarakat Kita Semua Indonesian Journal of Applied Mathematics Transcendent Journal of Mathematics and Applications
Irwan, Sri Efrinita
Program Studi Matematika, Jurusan Sains, Institut Teknologi Sumatera
Agriculture, Biological Sciences & Forestry Humanities Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Other

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A graph theory approach to the dormitory room placement problem Sri Efrinita Irwan; Triyana Muliawati
Journal of Science and Applicative Technology Vol 2 No 1 (2019): ICoSITeR Special Edition
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (579.197 KB) | DOI: 10.35472/281472

Abstract

One of the important areas in mathematics is graph theory. A graph is a mathematical structure used to model pairwise relations between objects. The theory of graph can be applied in various problems. The purpose of this paper is to solve the dormitory room placement problem using graph theory approach. In this paper, there are two factors used to determine the student room, i.e. the study program and provincial origin.
Aplikasi Pewarnaan Graf pada Penempatan Kamar Mahasiswa (Studi Kasus: Asrama Institut Teknologi Sumatera) Sri Efrinita Irwan
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Vol. 17 No. 1 (2020): Sainmatika : Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (672.126 KB) | DOI: 10.31851/sainmatika.v17i1.3137

Abstract

This article discusses the application of graph colouring to the placement of students room. The sample data used is the data of prospective students resident ofInstitut Teknologi Sumatera. The graph colouring process in this article utilizes the Welsh-Powell algorithm and related algebraic theories to facilitate the data processing. The process is carried out to find out the minimum number of rooms needed to place a number of students so that there are no students come from the same study program or UKT group in one room. ABSTRAK Artikel ini membahas aplikasi pewarnaan graf pada penempatan kamar mahasiswa. Sampel data yang digunakan adalah data calon mahasiswa penghuni asrama Institut Teknologi Sumatera. Proses pewarnaan graf pada artikel ini memanfaatkan algoritma Welsh-Powell dan teori aljabar terkait untuk mempermudah proses pengolahan data. Proses tersebut dilakukan untuk mengetahui jumlah minimum kamar yang dibutuhkan untuk menempatkan sejumlah mahasiswa sehingga tidak ada mahasiswa yang berasal dari program studi atau pun golongan UKT yang sama dalam satu kamar. 
Aplikasi Fuzzy Linier Programming dengan Metode Branch and Bound untuk Mengoptimalkan Jumlah Produksi dan Keuntungan Penjualan Roti di Italia Bakery Bandar Lampung Achmad Suryadi Nasution; Fatin Trihastuti; Sri Efrinita Irwan
Indonesian Journal of Applied Mathematics Vol 2 No 2 (2023): Indonesian Journal of Applied Mathematics Vol. 2 No. 2 January Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35472/indojam.v2i2.1030

Abstract

Italia Bakery is one of the bakeries in Bandar Lampung that produces various types of sandwiches, namely meat bread, and green bean bread. The Italian Bakery factory has difficulty in determining the optimal amount of bread production as well as controlling the right amount of raw materials. This causes losses for the factory because bread that is not worth the market will be thrown away, as a result of which the profits obtained do not reach the maximum limit. This problem can be solved by planning the optimal production amount based on the amount of raw material supply and the amount of demand with fuzzy linear programming methods. Results that have been completed with fuzzy linear programming that is still a fractional number can be rounded using the branch and bound method. Based on the results of research conducted, it is known that the use of both methods can increase the company's profits by 8,17%.
Implementation of Preemptive Goal Programming and Branch and Bound in Production Planning at the Istiqomah Tofu Factory, Bandar Lampung City Anggraini, Retno; Irwan, Sri Efrinita; Nasution, Achmad Suryadi
Transcendent Journal of Mathematics and Applications Vol 2, No 2 (2023)
Publisher : Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/tjoma.v2i2.34050

Abstract

In a production process, it is necessary to carry out a production planning so that the company gets the maximum profit at the minimum cost. Each place of production has several goals to be achieved, these goals do not always have the same level of importance. There are several goals that have varying degrees of importance. This problem can be solved by using the preemptive goal and branch and bond method. The results of the study show that, to achieve all the desired goals/objectives the Istiqomah tofu factory has to produce 638 packs of white tofu, 360 packs of yellow tofu and 360 packs of Chinese tofu so that the factory's profit could increase by 13.43% or Rp237.000,00perday.
Literasi Pemanfaatan Software JASP Untuk Meningkatkan Keterampilan Statistik Guru di MAN 1 Bandar Lampung Andirasdini, Indah Gumala; Sofia, Ayu; Rivai, Muklas; Mahrani, Dwi; Yulita, Tiara; Irwan, Sri Efrinita; Berliana Ratam, Aldila Nur Indah; Gustina K.S., Annisa Hevita; Dewi, Karina Sylfia; Marisa, Marisa; Azzanina, Nanda; Baiti, Putri Isnaini Cahyaning; Rosni, Rosni
RENATA: Jurnal Pengabdian Masyarakat Kita Semua Vol. 3 No. 1 (2025): Renata - April 2025
Publisher : PT Berkah Tematik Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61124/1.renata.147

Abstract

Guru sebagai agen perubahan memiliki peran strategis dalam mengembangkan literasi digital di lingkungan kerja. Salah satu aspek penting dalam literasi digital adalah kemampuan dalam memanfaatkan teknologi dan aplikasi digital untuk mendukung proses pembelajaran dan pengolahan data. Pemanfaatan software JASP (Jeffreys's Amazing Statistics Program) menjadi salah satu cara efektif bagi guru untuk meningkatkan keterampilan statistik seperti mengolah dan menganalisis data. Dengan memanfaatkan JASP, guru dapat melakukan analisis statistik secara intuitif dan efisien, sehingga memudahkan dalam mengajarkan konsep-konsep statistik kepada siswa. Pengabdian dalam bentuk literasi pemanfaatan software JASP ini didasari oleh kebutuhan mendesak akan kemampuan memahami analisis data yang efektif di kalangan pendidik, mengingat pentingnya pengolahan data dalam proses pembelajaran dan evaluasi. Metode yang digunakan dalam pengabdian ini meliputi pelatihan intensif dan workshop yang dirancang untuk memperkenalkan fitur-fitur utama JASP, termasuk analisis statistik dasar hingga lanjutan. Peserta diberikan kesempatan untuk langsung mempraktikkan penggunaan software sehingga diharapkan dapat meningkatkan pemahaman dan keterampilan. Hasil dari kegiatan ini menunjukkan peningkatan kemampuan guru yang signifikan dalam mengolah dan menganalisis data. Hal ini ditunjukkan dari hasil pre-test dan post-test yang dilakukan sebelum dan sesudah kegiatan. Kegiatan pengabdian ini tidak hanya memberikan pengetahuan baru, tetapi juga membangun kepercayaan diri para guru dalam menggunakan teknologi untuk mendukung pengajaran. Kesimpulan dari pengabdian ini menekankan pentingnya pelatihan berkelanjutan dalam literasi data untuk meningkatkan kualitas pendidikan
Co-Authors Achmad Suryadi Nasution Andirasdini, Indah Gumala Azzanina, Nanda Baiti, Putri Isnaini Cahyaning Berliana Ratam, Aldila Nur Indah Dewi, Karina Sylfia Fatin Trihastuti Gustina K. S, Annisa Hevita Mahrani, Dwi Marisa Marisa Muliawati Retno Anggraini Rivai, Muklas Rosni, Rosni Sofia, Ayu Yulita, Tiara