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All Journal Jurnal Pendidikan Matematika Undiksha JURNAL MATEMATIKA STATISTIKA DAN KOMPUTASI P2M STKIP Siliwangi SITEKIN: Jurnal Sains, Teknologi dan Industri Jurnal Riset Pendidikan Matematika AKSIOMA: Jurnal Program Studi Pendidikan Matematika Jurnal Teknologi Informasi dan Ilmu Komputer Al-Jabar : Jurnal Pendidikan Matematika JOIV : International Journal on Informatics Visualization KALAMATIKA Jurnal Pendidikan Matematika PRISMA Faktor Exacta Jurnal Pengabdian Pada Masyarakat Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Numeracy : Jurnal Ilmiah Pendidikan Matematika BAREKENG: Jurnal Ilmu Matematika dan Terapan JMM (Jurnal Masyarakat Mandiri) JTAM (Jurnal Teori dan Aplikasi Matematika) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Indiktika : Jurnal Inovasi Pendidikan Matematika Martabe : Jurnal Pengabdian Kepada Masyarakat KOMPUTIKA - Jurnal Sistem Komputer Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Mathvision : Jurnal Matematika GERVASI: Jurnal Pengabdian kepada Masyarakat MES: Journal of Mathematics Education and Science Jurnal Penelitian Pembelajaran Matematika Sekolah Jurnal Eduscience (JES) Dedikasi: Jurnal Pengabdian Masyarakat Jurnal Pengabdian Masyarakat Borneo Jurnal Absis : Jurnal Pendidikan Matematika dan Matematika J-PiMat : Jurnal Pendidikan Matematika Jurnal Magister Pendidikan Matematika (JUMADIKA) Jurnal Abdi Insani Abdimasku : Jurnal Pengabdian Masyarakat Journal of Innovation Information Technology and Application (JINITA) Range : Jurnal Pendidikan Matematika Jubindo: Jurnal Ilmu Pendidikan Bahasa dan Sastra Indonesia Jurnal Anugerah: Jurnal Pengabdian Kepada Masyarakat Bidang Keguruan dan Ilmu Pendidikan Journal of Research in Mathematics Trends and Technology JAMBURA JOURNAL OF PROBABILITY AND STATISTICS JUPIKA: JURNAL PENDIDIKAN MATEMATIKA Jurnal Diferensial Jurnal Penelitian Inovatif MATH-EDU: Jurnal Ilmu Pendidikan Matematika Jurnal Algoritma Smart Society: Community Service and Empowerment Journal Fraction: Jurnal Teori dan Terapan Matematika Jurnal Pengabdian Sains dan Humaniora Malcom: Indonesian Journal of Machine Learning and Computer Science IC Tech: Majalah Ilmiah Parameter: Jurnal Matematika, Statistika dan Terapannya Kreativasi: Journal of Community Empowerment PADIMAS: Jurnal Pengabdian Masyarakat Journal of Mathematics, Computation and Statistics (JMATHCOS) Jurnal Jendela Matematika Jurnal Pendidikan MIPA Journal on Mathematics Education Trigonometri : Jurnal Matematika IC Tech: Majalah Ilmiah Media Pendidikan Matematika Babakti: Journal of Community Engangement
Simarmata, Justin Eduardo
Pendidikan Matematika, Fakultas Keguruan Dan Ilmu Pendidikan, Universitas Timor, Indonesia
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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Numeracy Training: Applying Jarimatika Method in Elementary School Students of Border Area Nunpene East Nusa Tenggara Lailin Hijriani; Meiva Marthaulina Lestari Siahaan; Justin Eduardo Simarmata; Yeni Missa; Margarita Tampani; Nelciana Talan
Smart Society Vol. 2 No. 1 (2022): Smart Society
Publisher : FOUNDAE (Foundation of Advanced Education)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/smartsociety.v2i1.101

Abstract

The numeracy skill of elementary school students in border area Nunpene East Nusa Tenggara is still relatively low. This is caused by the students’ habit use counting aid such as calculators. Therefore, it is necessary to have a Lecturer activity in the community to help elementary school students which aim to improve their numeracy skills. Because mathematics teaches various skills, one of which is counting. So that the ability to count is a fundamental thing that must be mastered by students when they learn mathematics. One of learning method that can be done to improve students' numeracy skills is by applying the Jarimatika method which involves the students' own organs directly. Indirectly cognitive and psychomotor abilities will develop simultaneously so as to increase the efficiency of students' counting speed. As for the steps of the service, the method are including the introduction of the counting method, assistance during the learning process, then providing an evaluation. The results of this training are that after the training, it can be seen from the posttest results that students have increased their numeracy skills using the Jarimatika method. As well as increasing the knowledge of mathematics teachers regarding the use of the Jarimatika method as an alternative method of numeracy
Forecast Analysis Towards Golden Indonesia 2045 Switamy Angnitha Purba; Ferdinan Rinaldo Tampubolon; Anna Angela Sitinjak; Justin Eduardo Simarmata; Debora Exaudi Sirait
Journal of Research in Mathematics Trends and Technology Vol. 8 No. 1 (2026): Journal of Research in Mathematics Trends and Technology (JoRMTT)
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jormtt.v8i1.22273

Abstract

The year 2045 marks 100 years since Indonesia gained its independence. The government's vision for that year is Golden Indonesia 2045. In the final draft of the 2025-2045 RPJPN of the Ministry of National Development Planning / Bappenas there are five main targets of the 2045 Golden Indonesia Vision. In this article, a forecast is conducted using the Least Square method to determine whether Indonesia can achieve this vision by 2045. There are 8 aspects that will be forecasted which are considered to represent the five targets of Golden Indonesia 2045. The eight aspects are Human Development Index; Information and Communication Technology Development Index; Per Capita Income Data; Poverty Rate; Open Unemployment Rate; National Road Stability; Provincial Road Stability; and District and City Road Sustainability.
Evaluasi Hasil Belajar Matematika melalui Media Interaktif RStudio dengan Uji Wilcoxon Roberto Abi; Justin Eduardo Simarmata; Yohanes Jefrianus Kehi
J-PiMat : Jurnal Pendidikan Matematika Vol 8, No 1 (2026): J-PiMat
Publisher : Prodi Pendidikan Matematika STKIP Persada Khatu;istiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/j-pimat.v8i1.6172

Abstract

Mathematics learning is often considered difficult by students because the concept is abstract, especially the topic of systems of linear inequalities in two variables (SPtLDV). The limitations of visualization in conventional learning lead to low conceptual understanding and impact student learning outcomes. Learning media that can present interactive visual representations are needed to help students understand mathematical concepts concretely. This study aims to evaluate students' mathematics learning outcomes after using RStudio-based interactive learning media on the topic of SPtLDV. This study used a quantitative approach, involving 36 grade X students of SMA Negeri 1 Kefamenanu. Learning outcome data were obtained through pretest and posttest. Data analysis was carried out using descriptive statistics, boxplot visualization to illustrate data distribution, and the Wilcoxon signed-rank test at a significance level of 5% to test the difference in scores before and after learning. The results of the analysis showed that the average posttest score was higher than the pretest, accompanied by a shift in the distribution of scores towards a higher direction in the boxplot visualization. The Wilcoxon signed-rank test showed a significant difference between the pretest and posttest scores (p < 0.05). These findings indicate that the use of RStudio-based interactive learning media is associated with improved student learning outcomes the topic of SPtLDV. This research contributes to the development of statistical software as an interactive visualization medium to support mathematics learning at the secondary school level.Keyword: Interactive Learning Media, RStudio, Mathematics Learning Outcomes.
PELATIHAN MENDELEY DESKTOP UNTUK PENULISAN KARYA TULIS ILMIAH BAGI GURU-GURU SMP NEGERI WINI Justin Eduardo Simarmata; Ni Putu Yuni Astriani Dewi; Vinsensia Ulia Rita Sila; Muhammad Amran Shidik; Yunawati Sele
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 5, No 4 (2022): Martabe : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v5i4.1355-1363

Abstract

This community service activity aims to train skills and improve bibliography writing skills using the Mendeley Desktop in writing scientific papers for Wini State Junior High School teachers. Community service activity was carried out at Wini State Junior High School, North Central Timor Regency, East Nusa Tenggara. The training method is carried out in the following stages: lectures, demonstrations, discussions/questions and answers. The training activities were carried out face-to-face with the training participants as many as 13 Wini State Junior High School teachers. Based on the results of the training activities, it was found that the training of using  Mendeley Desktop has a positive impact toward development of teachers' abilities in writing scientific papers. The results of training activities related to the understanding of teachers in the technical use of Mendeley Desktop, a significant increase was obtained. Prior to the training, 8% of the training participants had a good understanding, 15% had sufficient understanding, and 77% had a poor understanding of using Mendeley Desktop in writing scientific papers. After the training, 62% of the participants had a very good understanding. 23% of participants have good understanding, the other 15% of participants have sufficient understanding. Thus, it can be concluded that the Mendeley Desktop application training was successful in carrying out knowledge transfer to the trainees.
PELATIHAN DIVERSIFIKASI KELAPA MENJADI BRIKET DALAM UPAYA MENINGKATKAN PENDAPATAN KELOMPOK TANI Justin Eduardo Simarmata; Melkisedik Bukifan; Leonard Peter Gelu; Debora Chrisinta; Ni Wayan Sukerti; Nia Erlina; Ida Bagus Putu Mardana
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 8, No 3 (2025): MARTABE : JURNAL PENGABDIAN KEPADA MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v8i3.943-950

Abstract

Kegiatan pengabdian ini dilaksanakan untuk meningkatkan kemampuan Kelompok Tani Nifunan di Desa Nian dalam mendiversifikasi limbah tempurung kelapa menjadi briket sebagai produk bernilai tambah. Metode yang digunakan meliputi sosialisasi, sosialisasi, pelatihan teknis, dan workshop pemasaran, dengan partisipasi aktif 21 anggota kelompok tani. Evaluasi dilakukan melalui angket, observasi, dan wawancara, baik selama kegiatan berlangsung maupun pasca kegiatan. Hasil pengabdian menunjukkan peningkatan hardskill peserta sebesar 70%, dengan 85% peserta memahami teknik pembuatan briket setelah pelatihan. Selain itu, 50% peserta mulai memproduksi briket untuk kebutuhan rumah tangga atau pemasaran lokal, yang berpotensi meningkatkan pendapatan ekonomi mereka. Kegiatan ini juga membuka peluang kolaborasi untuk pengembangan lebih lanjut di bidang pemasaran digital dan produksi skala besar.
Enhancing The Accuracy of Academic Document Plagiarism Detection Through Big Data and Similarity Measure Approaches Debora Chrisinta; Miko Purnomo; Iis Aprianti; Justin Eduardo Simarmata
Journal of Innovation Information Technology and Application (JINITA) Vol 8 No 1 (2026): JINITA, June 2026
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/jinita.v8i1.2946

Abstract

This study develops a Big Data-based plagiarism detection system using Similarity Measures to enhance objectivity and efficiency in evaluating student assignments. Employing a Research and Development (R&D) approach, the system processes .pdf and .docx documents through text preprocessing and computes similarities using Jaccard and Cosine Similarity. Testing on assignments from the Information Technology Program at the University of Timor showed that Cosine Similarity is more sensitive to sentence structure, while Jaccard better detects identical phrases. Around 40% of documents exceeded a 40% similarity threshold, indicating potential plagiarism. The system offers fast, flexible detection via a web interface, though it remains limited in identifying semantic or paraphrased content. Future improvements will incorporate NLP techniques to enhance accuracy and academic integrity
Co-Authors Abi, Roberto Ade Mirza admin pythagoras, admin Agnes L A Halla Agustinus Giovandi Laki Agustinus Giovandi Laki Ahzan, Z.N. Ahzan, Zulkaidah Nur Aloisius Loka Son Astriani Dewi, Ni Putu Yuni Atencia, Bryant Bennet D Atencia, Bryant Bennet D. Baldemor, Milagros R. Bana, Marten Luter Bano, Elinora Naikteas Bantaika, Aris Benu, Kristiani Benu, Luky Wandika Bernadeta Buik Bete, Hendrika Bete, Maria Erlince Bifel, Maria Gabriela Bait Binsasi, Eva Bone, Dominifridus Cecilia Novianti Salsinha Chrisinta, Debora Debora Exaudi Sirait Dian Grace Ludji Elfrida Nailopo Elin, Lailin Hijriani Elisabet Ersamayori Foeh Elisabeth E Mayori Elizio Victor De Araujo Erlina, Nia Fallo, Kristoforus Ferdinan Rinaldo Tampubolon Ferdinandus Mone Fetronela Rambu Bobu Fitriani Fitriani Fitriani Gelu, Leonard Peter Gelu, Leonard Peter Gerhard-Wilhelm Weber Gusti Firda Khairunnisa H. Bete Hendrika Yeni Meti Hijriani, Lailin Hijriani, Lailin Hutubessy, Aditya I Manalu, Adelya Ida Bagus Putu Mardana Iis Aprianti Iis Aprianti Inggrid Mariana Usifa Jaya Santoso Jeniana Martha Prima Asa Josua Sahala Juventianus Kenjam Juventianus Kenjam Kehi, Sefrinus Kenjam, Juventianus Klau, Kondradus Yohanes Kondradus Yohanes Klau Kono, Metriana Maria Kristofel Bere Nahak Lailin Hijriani Lidu, Maria LUDGARDIS LEDHENG Luruk, Maria Gaudensia Made Santo Gitakarma Maneno, Regolinda Margareta Rodrigues Gomes Margarita Tampani Maria Brigita Niis Nana Maria Delviana Mali Maria Erwinda Kefi, Winda Maria Naimnule Marpaung, Rissa Isabella Taruli Marselinus Banu Matute, Alejandro Jr. V. Melkisedik Bukifan Melkisedik Bukifan Merlin Helentina Napitupulu Miko Purnomo Miko Purnomo mone, ferdinandus Moses Timutang Muhammad Amran Shidik Naimnule, Maria Naisau, Angela Cristina Natalia Emanuela Lelboy Nelciana Talan Nelciana Talan Ni Putu Yuni Astriani Dewi Ni Putu Yuni Astriani Dewi Ni Wayan Sukerti Nia Erlina Nifu, Martha Marsela Nifu, Martha Marsella Oktovianus Mamoh Olo, Maria Regina Pakaenoni, Lusilia Dos Santos Pasaribu, Revi Lestari Patrisius Bauk Peter Gelu, Leonard Pius Thaal, Pius Prudensius Manek Purba, Switamy Angnitha Rita Sila, Vinsensia Ulia Roberto Abi S. A. Purba Sanam, Thofilus Sari, Nur Nilam Seko, Herbert Sele, Yunawati Selestina Nahak Siahaan, Meiva Marthaulina Lestari Sila, Vinsensia Ulia Rita Silfester Faentaono Sirait, Debora Sitti Rosnafi’an Sumardi Sopbaba, Merlina Stanislaus Amsikan Switamy Angnitha Purba Switamy Angnitha Purba Taena, Vinsensia Gerosa Tavares, Ricson Thresia Trivict Semiun Uskono, Yunitha Centriana Venidora Solo, Maria Fransiska Vinsensia Ulia Rita Sila Wihelmina, Maria Wisrance Winda Ade Fitriya B Wua Laja, Yosepha Patricia Yakoba Yusina Muanley Yeni Missa Yohanes Jefrianus Kehi Zulkaidah Nur Ahzan Zulkaidah Nur Azhan