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All Journal Jurnal Teknologi Informasi dan Ilmu Komputer Jurnal SIMADA (Sistem Informasi dan Manajemen Basis Data) Jaqfi : Jurnal Aqidah dan Filsafat Islam Science and Technology Indonesia BAREKENG: Jurnal Ilmu Matematika dan Terapan Beta: Jurnal Tadris Matematika JURNAL SILOGISME : Kajian Ilmu Matematika dan Pembelajarannya EIGEN MATHEMATICS JOURNAL Jurnal Teknologi Informasi dan Multimedia Imajiner: Jurnal Matematika dan Pendidikan Matematika Mandalika Mathematics and Educations Journal Square : Journal of Mathematics and Mathematics Education Contemporary Mathematics and Applications (ConMathA) Majalah Ilmiah Matematika dan Statistika (MIMS) Jurnal Diferensial Jurnal Pepadu Bakti Sekawan : Jurnal Pengabdian Masyarakat Basis : Jurnal Ilmiah Matematika Jurnal Sains Natural Jurnal Pengabdian Masyarakat Sehati Sasambo: Jurnal Abdimas (Journal of Community Service) Sinergi dan Harmoni Masyarakat MIPA JARI : Jurnal Akuakultur Rawa Indonesia
Abdurahim, Abdurahim
Department Of Mathematics, Faculty Of Mathematics And Natural Sciences, Universitas Mataram, Indonesia
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Penentuan Filterbank Wavelet Menggunakan Algoritma Mean Best Basis untuk Ekstraksi Ciri Sinyal Suara Ber-Noise Abdurahim, Abdurahim; Hidayat, Syahroni
Jurnal Teknologi Informasi dan Ilmu Komputer Vol 7 No 1: Februari 2020
Publisher : Fakultas Ilmu Komputer, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Belakangan ini filterbank berbasis wavelet sebagai ekstraktor ciri mulai banyak dikembangkan untuk dapat menggantikan peran ciri Mel Frequency Cepstral Coefficient (MFCC) dalam sistem pengenalan suara otomatis. Salah satu filterbank ciri wavelet yang dikembangkan adalah Wavelet-Packet Cepstral Coefficient (WPCC). Namun sejauh ini pengembangannya hanya difokuskan untuk suara tanpa noise. Sehingga penelitian ini bertujuan untuk mendesain WPCC untuk suara yang mengandung noise. Algoritma Mean Best Basis (MBB) dan fungsi wavelet db44 dan db45 digunakan untuk memperoleh desain filterbank WPCC. Suara yang digunakan adalah rekaman suara vokal bahasa Indonesia a, i, u, e, é, o, dan ó yang mengandung noise. Hasil menunjukkan telah terbentuk dua buah desain filterbank WPCC. Masing-masing merupakan hasil penerapan fungsi daubechies db44 dan db45. Noise tidak memberikan pengaruh terhadap pembentukan kedua filterbank WPCC tersebut. Kedua bentuk filterbank telah memenuhi standar bentuk filter MFCC terutama untuk variabel range dan skala frekuensinya. Range frekuensinya berkisar antara 125 Hz - 1000 Hz dengan bentuk skala yang linier untuk frekuensi di bawah 1000 Hz. Sehingga dapat disimpulkan kedua bentuk filterbank WPCC ini dapat dipertimbangkan untuk digunakan sebagai ekstraktor ciri suara ber-noise. AbstractRecently wavelet-based filterbanks as feature start extractors have been widely developed to replace the role of the Mel Frequency Cepstral Coefficient (MFCC) feature in automatic speech recognition systems. One of the wavelet feature filterbanks developed is Wavelet-Packet Cepstral Coefficient (WPCC). But so far the development has only been focused on clean speech signal. So, the aim of this study is designing WPCC for a noisy speech signal. The Mean Best Basis (MBB) algorithm and db44 and db45 wavelet functions are applied to obtain the WPCC filterbank design. The noisy speech signal used is the recorded utterance Indonesian vowels a, i, u, e, é, o, and ó. The results show that two WPCC filterbank designs have been formed. Each of them is the result of applying the daubechies db44 and db45 functions. Noise has no effect on the establishment of both the WPCC filterbanks. Both fiterbank designs have met MFCC filter form standards, especially for its range of frequency and frequency scale. Its range of frequency is between 125 Hz - 1000 Hz with a linear scale for frequencies below 1000 Hz. Therefore it can be concluded that the two forms of WPCC filterbank can be considered to be used as a feature extractor for a noisy speech signal.
UPAYA PENINGKATAN MINAT BELAJAR MATEMATIKA SISWA Zulhan Widya Baskara; Salwa, Salwa; Abdurahim, Abdurahim; Awalushaumi, Lailia; Marwan, Marwan; Aini, Qurratul; Robbaniyyah, Nuzla Af’idatur; Alfian, Muhammad Rijal; Baskara, Zulhan Widya; Rusadi, Tri Maryono; Syechah, Bulqis Nabula; Wardana, I Gede Adhitya Wisnu; Choirunnisa, Fajarani
Jurnal Pepadu Vol 5 No 3 (2024): Jurnal PEPADU
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/pepadu.v5i3.5870

Abstract

Berbagai faktor dapat mempengaruhi rendahnya minat siswa dalam belajar matematika, diantaranya adalah metode pembelajaran yang dilakukan guru saat mengajar, keterbatasan sarana prasarana pembelajaran, motivasi dari guru, dan dukungan orang tua siswa. keingintahuan siswa berupa materi yang menarik, penjelasan guru yang mudah dipahami akan menjadikan matematika menjadi mata pelajaran favorit, mengingat pentingnya pemahaman konsep dasar matematika di tingkat sekolah, khususnya SMA, maka perlu adanya upaya untuk meningkatkan minat belajar matematika. Dalam hal ini, upaya yang dilakukan melalui media cerita tentang paradoks dan temuan tokoh-tokoh matematika yang dimanfaatkan untuk membantu memudahkan kehidupan manusia, diharapkan bisa menumbuhkan keinginan mengetahui palajaran matematika sehingga menumbuhkan minat belajar matematika siswa. Pengabdian dilaksanakan pada tanggal 8 Juni 2024 yang dialaksanakan melalui tahapan penyusunan materi palatihan, FGD, memberikan pre test, memberikan materi serta memberikan post test setelah diberikannya materi. Hasil yang diperoleh adalah dari 10 item pertanyaan, terdapat 8 pertanyaan yang jawabannya positif dan 2 lainnya jawabannya negatif. Sebagian besar responden setuju (52.57%) atau sangat setuju (38.97%) dengan pertanyaan yang masuk dalam golongan positif, hal ini menunjukkan bahwa mayoritas responden memiliki pandangan yang positif terhadap topik yang ditanyakan. Jadi dapat disimpulkan bahwa hasil post test menunjukkan bahwa intervensi atau pelatihan yang dilakukan efektif dalam meningkatkan pandangan positif responden.
TOPOLOGY INDEX OF THE COPRIME GRAPH FOR DIHEDRAL GROUP OF PRIME POWER ORDER Gayatri, Marena Rahayu; Fadhilah, Rifdah; Lestari, Sahin Two; Pratiwi, Lia Fitta; Abdurahim, Abdurahim; Wardhana, I Gede Adhitya Wisnu
JURNAL DIFERENSIAL Vol 5 No 2 (2023): November 2023
Publisher : Program Studi Matematika, Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jd.v5i2.12462

Abstract

In the field of molecular chemistry, graph theory is utilized to represent the structure of a molecule, where the set of nodes corresponds to its chemical elements and the set of edges represents the bonds within the chemical molecule. Graph theory, a mathematical discipline, finds application in various domains, one of which is group representation. This research will delve into the topic of the topological indices of the coprime graph of dihedral groups. The methodology employed involves reviewing several references related to dihedral groups, coprime graphs, and topological indices. This study yields results in the form of Harmonic index, Harary index, first Zagreb index, Gutman index, and Wiener index.
The Topological Indices of Coprime Graph for Integer Module Group Abdurahim, Abdurahim; Awanis, Zata Yumni; Syechah, Bulqis Nebulla; Syaharuddin, Syaharuddin
JURNAL DIFERENSIAL Vol 6 No 2 (2024): November 2024
Publisher : Program Studi Matematika, Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jd.v6i2.14816

Abstract

This study delves into the fascinating realm of coprime graphs within the integer modulo group, revealing a fundamental property where these graphs manifest as star graphs when the order corresponds to a prime power. This pivotal insight, as elucidated by [1], plays a crucial role in the determination of topological indices for these graphs. The research culminates in the formulation of formulas for the First Zagreb index and the Second index of coprime graphs in the context of integer modulo groups, unveiled in the last two theorems. These numerical topological indices are poised to unveil intricate correlations among group elements, contingent upon their order, echoing the foundational principles of chemical graph theory. This exploration not only enriches our understanding of group structu.Coprime Graph
Indeks Harmonik, Randic, dan Gutman dari Graf Koprima Prima untuk Grup Bilangan Bulat Modulo Abdurahim, Abdurahim; Qudsi, Jihadil; Muawanah, Siti; Salwa, Salwa
JURNAL DIFERENSIAL Vol 7 No 1 (2025): April 2025
Publisher : Program Studi Matematika, Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jd.v7i1.18227

Abstract

Graf koprima prima dari grup bilangan bulat adalah graf yang himpunan simpulnya adalah semua anggota grup. Dua buah simpul berbeda dikatakan dikatakan bertetangga jika faktor persekutuan terbesar dari order kedua simpul tersebut sama dengan 1 atau prima. Lebih jauh, grup bilangan bulat yang dikaji adalah Zn di mana n=p^k dengan p prima dan k>=2. Kajian pada paper ini adalah mencari rumus umum dari beberapa indeks, yaitu Harmonik, Randic, dan Gutman
Indeks Topologi Padmakar Ivan dan Szeged pada Graf Koprima Prima dari Grup Bilangan Bulat Modulo Abdurahim, Abdurahim; Pratiwi, Lia Fitta; Karang, Gusti Yogananda; Wardhana, I Gede Adhiya Wisnu; Irwansyah, Irwansyah; Awanis, Zatta Yumni; Romdhini, Mamika Ujianita
Square : Journal of Mathematics and Mathematics Education Vol. 6 No. 2 (2024)
Publisher : UIN Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/square.2024.6.2.22836

Abstract

The Prime Coprime Graph is defined as a graph in which two distinct vertices are adjacent if and only if the greatest common divisor of their orders is 1, indicating that they are coprime. This research focuses on deriving general formulas for the Padmakar-Ivan index and the Szeged index for the coprime prime graph of the modulo integer group with n=p^k, where p is a prime number and k is not less than 2. As a result of this study, explicit formulas for the Padmakar-Ivan and Szeged indices were obtained, along with an analysis of the relationship between these two indices.Keywords: prime coprime graph, Padmakar-Ivan index, Szeged index.
PERANCANGAN ARSITEKTUR CLOUD SISTEM INFORMASI SEKOLAH MA AL FALAH PESAWARAN BERBASIS ROADMAP CLOUD COMPUTING ADOPTION (ROCCA) Meiliza; Rahardi, Agus; Nurjoko; Abdurahim
Jurnal SIMADA (Sistem Informasi dan Manajemen Basis Data) Vol. 7 No. 2 (2024): Jurnal SIMADA (Sistem Informasi dan Manajemen Basis Data)
Publisher : LP2M Institut Informatika Dan Bisnis Darmajaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30873/simada.v7i2.837

Abstract

This study examines the design of cloud architecture for school information systems at MA Al Falah Pesawaran based on the Roadmap Cloud Computing Adoption (ROCCA) and the implementation of the Software as a Service (SaaS) model. The main objective of this study is to develop efficient, scalable, and cost-effective information technology solutions to improve school operational performance and effectiveness. The methods used include needs analysis, cloud architecture design, and implementation and evaluation of system prototypes. The results of the study indicate that the implementation of ROCCA and the SaaS model can accelerate the adoption of cloud technology in the school environment, reduce operational costs, and increase the flexibility and accessibility of school information systems. The implementation of this cloud architecture also allows for better integration with other existing systems, and provides a more secure and well-managed platform.   Keywords: Cloud Architecture, School Information Systems, ROCCA, SaaS   Abstrak Penelitian ini mengkaji perancangan arsitektur cloud untuk sistem informasi sekolah di MA Al Falah Pesawaran dengan berbasis pada Roadmap Cloud Computing Adoption (ROCCA) dan penerapan model Software as a Service (SaaS). Tujuan utama penelitian ini adalah untuk mengembangkan solusi teknologi informasi yang efisien, scalable, dan cost-effective, guna meningkatkan kinerja dan efektivitas operasional sekolah. Metode yang digunakan meliputi analisis kebutuhan, perancangan arsitektur cloud, serta implementasi dan evaluasi prototipe sistem. Hasil penelitian menunjukkan bahwa penerapan ROCCA dan model SaaS dapat mempercepat adopsi teknologi cloud di lingkungan sekolah, mengurangi biaya operasional, serta meningkatkan fleksibilitas dan aksesibilitas sistem informasi sekolah. Implementasi arsitektur cloud ini juga memungkinkan integrasi yang lebih baik dengan sistem-sistem lain yang ada, serta menyediakan platform yang lebih aman dan terkelola dengan baik.   Kata Kunci: Arsitektur Cloud, Sistem Informasi Sekolah, ROCCA, SaaS
Implementasi Modul Olimpiade SMP Di SMPN 2 Kuripan Lombok Barat Putra, Lalu Riski Wirendra; Pratama, Rendi Bahtiar; Karang, Gusti Yogananda; Irwansyah, Irwansyah; Wardhana, I Gede Adhitya Wisnu; Romdhini, Mamika Ujianita; Abdurahim, Abdurahim; Maulana, Fariz; Satriyantara, Rio; Awanis, Zata Yumni; Putri, Syaftirridho; Graha, Syifa Salsabila Satya; Wahidah, Fathul Maulina; Pratiwi, Lia Fitta; Pradana, Satriawan; Siboro, Ayes Malona; Farwan, Farwan
Sinergi dan Harmoni Masyarakat MIPA Vol. 1 No. 1 (2024): Oktober
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/sinonim.v1i1.5517

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan untuk mengimpelementasikan modul pembelajaran olimpiade matematika bagi siswa SMPN 2 Kuripan. Kebutuhan akan modul ini didasarkan pada rendahnya akses siswa terhadap materi-materi persiapan olimpiade yang terstruktur dan sesuai dengan kemampuan serta kebutuhan mereka. Metode yang digunakan dalam pengembangan modul ini meliputi analisis kebutuhan, desain dan pengembangan modul, serta uji coba. Modul ini dirancang untuk mencakup berbagai topik matematika yang sering muncul dalam olimpiade, disertai dengan contoh soal dan pembahasan yang mendalam. Hasil dari kegiatan ini menunjukkan bahwa penggunaan modul olimpiade matematika ini dapat meningkatkan pemahaman siswa terhadap materi olimpiade, serta memotivasi mereka untuk lebih aktif dalam mengikuti kompetisi. Evaluasi melalui uji coba menunjukkan respon positif dari siswa, dengan peningkatan signifikan pada hasil latihan soal.
Peningkatan Pemahaman Konsep Geometri melalui Visualisasi Sketsa Grafik Fungsi bagi Siswa Di SMA Negeri 1 Pujut Zulhan Widya Baskara; Abdurahim, Abdurahim; Robbaniyyah, Nuzla Af'idatur; Ramadhan, Hikmal Maulana; Hidayatullah, Azka Farris; Alfian, Muhammad Rijal; Bahri, Syamsul; Awalushaumi, Lailia; Syechah, Bulqis Nebula; Marwan, Marwan; Salwa, Salwa; Rusadi, Tri Maryono; Maharani, Andika Ellena Saufika Hakim; Harsyiah, Lisa; Baskara, Zulhan Widya; Satriyantara, Rio
Bakti Sekawan : Jurnal Pengabdian Masyarakat Vol. 5 No. 1 (2025): Juni
Publisher : Puslitbang Sekawan Institute Nusa Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35746/bakwan.v5i1.733

Abstract

Geometry is one of the fundamental topics in mathematics, playing a crucial role in understanding shapes, sizes, positions, and spatial relationships between objects. Mastery of this concept is essential; however, in practice, many students still struggle to grasp geometry material. This issue is also evident at SMA Negeri 1 Pujut, where several students demonstrate a low level of understanding of geometric concepts. In response to this problem, the aim of the research is a community service activity was carried out in the form of tutoring sessions focused on improving students' understanding of geometry. This activity employed a visualization approach through function graph sketches to help students better comprehend the interconnections between concepts in a more concrete way. Based on the evaluation results, data showed that 86.67% of students exhibited improved learning outcomes after participating in the activity. This achievement indicates that the instructional method used by the facilitators was quite effective and well-received by the majority of participants.
Membangun Kemampuan Problem Solving Matematika Berbasis Pola Pikir Logis untuk Persiapan UTBK Abdurahim, Abdurahim; Salwa, Salwa; Ramadhan, Hikmal Maulana; Choirunnisa, Fajarani; Pradana, Satriawan; Marwan, Marwan; Alfian, Muhammad Rijal; Aini, Qurratul; Robbaniyyah, Nuzla Af'idatur; Awalushaumi, Lailia
Bakti Sekawan : Jurnal Pengabdian Masyarakat Vol. 5 No. 2 (2025): Desember
Publisher : Puslitbang Sekawan Institute Nusa Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35746/bakwan.v5i2.866

Abstract

Mastery of mathematical problem-solving skills based on logical reasoning is an important aspect in supporting students’ success in facing the Computer-Based Written Examination (UTBK). However, many students still encounter difficulties in understanding concepts and effectively solving UTBK-type questions. To address this issue, a community service program was conducted at SMA Negeri 1 Pujut with the aim of enhancing participants’ mathematical reasoning capacity. The activity began with an introduction to the Mathematics study program, followed by training sessions on strengthening concept mastery through logical reasoning and practice in solving UTBK questions, delivered by lecturers and students. The effectiveness of the training was evaluated through a comparison of participants’ pre-test and post-test results. This activity was attended by 30 students as training participants. The evaluation showed a significant improvement in post-test scores, with 83.33% of participants experiencing an increase in their scores, and the majority achieving above 60 in the post-test. These findings indicate that the applied training method was effective in improving students’ conceptual understanding of mathematics and their readiness to face the UTBK.
Co-Authors Adam Bachtiar Maulachela Agus Kurnia Agus Rahardi, Agus Ahmad Ahmad Ambar, Jinan Anas, Andy Sofyan Asmaul Husna RS Awanis, Zatta Yumni Ayes Malona Siboro Baihaqi, Muhamad Adzib Biyas Ola Tafakkur Chern, Jann-Long Choirunnisa, Fajarani Dian Syafitri Chani Saputri Fadhilah, Rifdah Faiqotul Mala Fariz Maulana Farwan Farwan Farwan, Farwan Fathul Maulina Wahidah Gayatri, Marena Rahayu Ghoffari, Lalu Hasan Graha, Syifa Salsabila Satya Gusti Ayu Made Arna Putri Gusti Yogananda Karang Habib Ratu Perwira Negara Hapsari, Mufidatul Ghina Harsyiah, Lisa Hendriana, Andri Hernawan, Systa Ambar Wangi Hidayat, Malik Hidayatullah, Azka Farris I Gede Adhitya Wisnu Wardhana I Gede Adhitya Wisnu Wardhana Irwansyah Irwansyah Irwansyah Irwansyah Iskandar, Andri Isnaini Rosyida, Isnaini Karang, Gusti Yogananda Kusuma, Shendy Arya Lailia Awalushaumi Lailia Awalushaumi, Lailia Lalu Puji Indra Kharisma Lalu Riski Wirendra Putra Lestari, Sahin Two Lia Fitta Pratiwi Maharani, Andika Ellena Saufika Hakim Mamika Ujianita Romdhini Mamika Ujianita Romdhini Mamika Ujianita Romdhini, Mamika Ujianita Marwan Marwan Maulana, Fariz Meiliza Muhammad Rijal Alfian MUHAMMAD TAJUDDIN Nurjoko Permata, Reny Amalia Pradana, Satriawan Pratama, Rendi Bahtiar Pratiwi, Lia Fitta Primajati, Gilang Putra, Lalu Riski Wirendra Putri, Syaftirridho Qudsi, Jihadil Qurratul Aini Ramadhan, Hikmal Maulana Ramadhani, Dian Eka Rendi Bahtiar Pratama Reny Amalia Permata Rezky Ramdhaningsih Rio Satriyantara Rizal, Ahmad Ashril Robbaniyyah, Nuzla Af'idatur Robbaniyyah, Nuzla Af’idatur Roushandy Asri Sahidin, Amir Salwa Salwa Satriawan Pradana Satriawan, Didit Satryantara, Rio Siboro, Ayes Malona Siti Muawanah Siti Raudhatul Kamali Sri Rahmawati Syafitri, Hanna Syaftirridho Putri Syaharuddin Syahroni Hidayat Syaidatussalihah Syaidatussalihah Syamsul Bahri Syechah, Bulqis Nabula Syifa Salsabila Satya Graha Tri Maryono Rusadi Veithzal Rivai Zainal Wahidah, Fathul Maulina Wahyudi, Imam Tri Wardana, I Gede Adhitya Wisnu Wardhana, I Gede Adhiya Wisnu Yumni Awanis, Zata Zata Yumni Awanis Zata Yumni Awanis Zikri, Lalu Muhammad Faiz Zulhan Widya Baskara