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An Unsupervised Learning and EDA Approach for Specialized High School Admissions Paramita, Adi Suryaputra; Ramadhan, Arief
Journal of Applied Data Sciences Vol 5, No 2: MAY 2024
Publisher : Bright Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47738/jads.v5i2.178

This research investigates disparities in access and representation within specialized high school admissions processes, focusing on public middle schools in New York City. Leveraging a dataset by a non-profit organization dedicated to increasing diversity in specialized high school admissions, the study employs exploratory data analysis and unsupervised learning techniques to identify schools with high levels of underrepresentation and academic potential. The analysis reveals significant disparities in access to specialized high schools, with certain demographic groups and schools facing barriers to entry. Through k-means clustering, schools are categorized based on their academic performance and demographic composition, enabling targeted intervention strategies to address disparities in access and representation. The research proposes general use towards education, including on-campus interventions, awareness campaigns, and regional information sessions, aimed at fostering equitable access to specialized high school programs. This study contributes to the broader discourse on educational equity and offers valuable insights for policymakers, educators, and researchers seeking to promote diversity and inclusion within educational systems.

FORMULASI DAN ANALISIS MUTU SELANG KARET UNTUK DME, LPG, DAN GAS ALAM (LNG) CIFRIADI, Adi; FALAAH, Asron Ferdian; Handayani, Hani; RAMADHAN, Arief; FITRIANI, Rachma; FITRIANI, Irma Nur
Jurnal Penelitian Karet JPK : Volume 42, Nomor 1, Tahun 2024
Publisher : Pusat Penelitian Karet - PT. Riset Perkebunan Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/ppk.jpk.v42i1.911

Pemerintah Indonesia terus berupaya mencari bahan bakar alternatif untuk rumah tangga dalam rangka mensubstitusi LPG, diantaranya adalah penggunaan DME dan gasalam. Upaya ini dilakukan dalam rangka mengurangi ketergantungan impor LPG dan bahkan menciptakan kemandirian energi, khususnya untuk bahan bakar rumah tangga. Pada saat aplikasi DME dan gas alam sebagai bahan bakar rumah tangga untukmenggantikan LPG maka diperlukan pemastian bahwa aksesoris kompor gas, salah satunya adalah material selang karet yang digunakan tahan terhadap LPG, DME, dan gas alam sesuai persyaratan di dalam SNI 9137:2022 tentang selang karet untuk kompor gas dimetil eter (DME) dan SNI 7213:2014 tentang selang karet untuk kompor gas LPG. Penelitian yang telah dilakukan ini bertujuan untuk melakukan formulasi dan analisis ketahanan kompon selang karet terhadap paparan DME, LPG, dan gas alam. Penelitian ini menggunakan variasi jenis elastomer terdiri dari karet NBR/PVC, CR, dan NBR/PVC blend NR (85/15) serta variasi bahan pengisi carbon black (CB) N330, N550, dan N774. Analisis dan karakterisasi mutu meliputi karakterisasi pematangan, kekerasan, kuat tarik, perpanjangan putus (sebelum dan sesudah pengusangan), uji ketahanan terhadap DME menggunakan gas DME, uji ketahanan terhadap LPG menggunakan gas LPG, dan uji ketahanan terhadap gas alam menggunakan cairan n-pentana. Sebanyak 3 (tiga) formula kompon bagian luar (cover) telah dibuat dan hasilnya semua formula telah memenuhi persyaratan SNI yang diacu. Sementara itu sebanyak 6 (enam) buah formula kompon selang bagian dalam (lining) telah berhasil dibuat dan hasilnya menunjukkan bahwa sebanyak 4 (empat) dari 6 (enam) formula yang dibuat telah memenuhi persyaratan mutu selang karet sesuai SNI yang diacu. Sementara itu, 2 (dua) formula yang lainnya masih belum memenuhi persyaratan yaitu formula NBR1 untuk persen penambahan massa (cairan terserap) setelah direndam dalam n-pentana dan formula NBR/NR2 untuk parameter perubahan perpanjangan putus setelah pengusangan.

THE ANALYSIS OF KNOWLEDGE MANAGEMENT PROCESS ON SOFTWARE DEVELOPMENT PROCESS: A SYSTEMATIC REVIEW Ramadhan, Arief; Lila Setiyani
Dinasti International Journal of Digital Business Management Vol. 1 No. 4 (2020): Dinasti International Journal of Digital Business Management (June - July 2020)
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31933/dijdbm.v1i4.363

Software quality is affected by its development process. The software development process, in general, goes through several stages, including project management, system requirements analysis, architecture, and design, implementation and testing. On each of these stages it cannot be separated from the process of capturing, storing, transferring and sharing knowledge between the developer and the stakeholders. This systematic review aimed to analyze the knowledge management process in the software development process. In this systematic review we used the Preferred Reporting Item for Systematic Review and Meta-Analysis (PRISMA) guidelines. We reviewed twenty-two works of literature from several publisher sources and analyzed the knowledge management process in software development. The analysis revealed that the knowledge management process has an essential role in improving the quality of software developed. As a conclusion of this systematic review, knowledge management is one of the factors in determining software quality.

Trends and Future Outlook for Mobile Application Development Using Design Thinking Approach: A Systematic Literature Review Saputra, Prasetya Cahya; Ramadhan, Arief
ULTIMA InfoSys Vol 15 No 2 (2024): Ultima Infosys: Jurnal Ilmu Sistem Informasi
Publisher : Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/si.v15i2.3446

In today's technological world, mobile-based application development has become a crucial and integral element for achieving competitive advantage. Various fields have tried to create mobile applications. One widely used method is Design Thinking, which focuses on creating more innovative, user-focused, and contextual solutions. This writing reviews mobile application development using the Design Thinking approach as the main method. In this research, the author explores the basic principles of Design Thinking, its processes, and how they can be applied effectively in the stages of mobile application development. The authors also analyze the benefits derived from this approach, including improved product quality, positive user response, and the potential to meet changing market needs. The results illustrate that the Design Thinking approach is not just an application development tool, but also a philosophy that drives better innovation and more relevant solutions. This SLR will display research results to what extent the Design Thinking approach in mobile application development has been used.

A system architecture for mixed reality systems in vocational schools in Indonesia Suryodiningrat, Satrio Pradono; Prabowo, Harjanto; Ramadhan, Arief; Santoso, Harry Budi
International Journal of Informatics and Communication Technology (IJ-ICT) Vol 14, No 1: April 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijict.v14i1.pp207-215

In Indonesia, vocational schools are less favored compared to K -12 schools. Unfortunately, graduates from vocational schools do not fulfill the minimum requirements set by industries, particularly in the current era of industry revolution 5.0. This revolution aims to establish society 5.0, where humans and robots collaborate closely to achieve improved work outcomes. One technique to enhance the proficiency of graduates and prepare them for the workforce is by implementing a mixed-reality system. that will effectively address a multitude of issues and significantly enhance the caliber of graduates and before the implementation of mixed reality (MR) systems, it is necessary to create system architecture diagrams to ensures that the system can be utilized not only in specific schools but also in any vocational school in Indonesia. This study comprises 5 participants, including experts from both the professional and academic fields, who possess extensive knowledge in the domains of metaverse, MR systems, and information systems. The methodology employed in this study draws inspiration from James Martin’s rapid application development (RAD). The result of this study is a validated system architectural diagram, endorsed by experts, which depicts a metaverse-based MR system designed specifically for vocational schools in Indonesia

Evaluasi Implementasi E-government di Instansi XYZ Romayah, Siti; Suroso, Arif Imam; Ramadhan, Arief
Jurnal Aplikasi Manajemen Vol. 12 No. 4 (2014)
Publisher : Universitas Brawijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/

Evaluation of e-Government is conducted to improve the efficiency, effectiveness, transparency and accountability of governance and public services. This study aims to evaluate the implementation of e-Government (e-Gov)in XYZ institution. The evaluation is divided into three types, first is analysis of maturity level using e-Gov Ranking Hold Indonesia (PeGI), the second type is evaluation of Information Systems Resources (ISR) with descriptive qualitative method, and the last one is analysis of system quality and information quality based on McLean and DeLone (2003) using analysis of Importance Performance Analysis (IPA). As a result, the overall assessment of PeGI from the five-dimensional measurement is good but it tends to be less threatened either. The dimensions of institutional, infrastructure, and application are categorized as good rank while the dimension of planning and policy are weak rank. Secondly, the evaluation results of ISR including hardware, software, netware, and dataware have good performance but the evaluation results of human resources need to be improved. Furthermore, from the IPA results, the low performance of sistem quality are reliability, accessibility, download time and efficiency and the low performance of information quality are timelines and up-to-date. Accordingly, XYZ institution need to make improvements that focus on information and communication technology (ICT) planning, human resources mapping and improving the quality and quantity in the field of ICT, as well as improving the system quality and the information quality to support the successful implementation of e-Gov in XYZ institution

Text to Speech Using Finite State Automata on Health Data Indrianto, Indrianto; Abdurrasyid, Abdurrasyid; Nur Indah Susanti, Meilia; Fairus Ferdiansyah Deu, Givari; Ramadhan, Arief
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) Vol. 17 No. 1 (2023)
Publisher : Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jeeccis.v17i1.1631

Computer science and engineering has provided many benefits that can be applied in our lives, such as in the field of automata theory, one of the largest areas related to the efficiency of an algorithm in solving problems in computational models. Text to Speech is a technology that converts text into sound using a phonetization system, phonemes that are arranged to form a speech to make computers able to communicate and interact with everyday spoken language. Data that need to be interpret is the health data such as body temperature, heart rate per minute, and oxygen levels. Text to Speech is very useful to be applied to blind aids who need information in the form of sound because of their limitations. For this reason, it is necessary to make an application that can read text-based data that is stored into a voice that can be heard by the blind, the method used in this study is Finite State Automata (FSA) which is used to split Indonesian words into words according to its syllable patterns and facilitate the pronunciation process which is included in the blind aids so that it is expected to help the visually impaired to be able to find out their health condition. in this study, the test was carried out using the Confusion Matrix method, while the results obtained were 97% accurate.

Pelatihan Public Speaking (Strong Mind, Strong Voice) Pemuda Desa Arabika sebagai Agen Perubahan Imran, Siti Nurfadila; Ramadhan, Arief; Sultan, Sulhani Purwanti; Kasmita, Maya; Siti Syarifah Wafiqah Wardah
TEKNOVOKASI : Jurnal Pengabdian Masyarakat Volume 3: Issue 3 (September 2025)
Publisher : Jurusan Teknik Informatika dan Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/teknovokasi.v3i3.9884

Kegiatan pengabdian kepada masyarakat ini dilaksanakan di Desa Arabika, Kabupaten Sinjai, dengan fokus pada pengembangan wisata berbasis potensi lokal, khususnya komoditas kopi Arabika. Pelatihan diberikan kepada pemuda desa agar mampu mengidentifikasi potensi lokal, merancang strategi pengelolaan, serta mengemas produk wisata yang autentik, unik, dan berkelanjutan. Metode pelaksanaan meliputi ceramah, diskusi interaktif, dan studi kasus lapangan. Hasil kegiatan menunjukkan peningkatan pengetahuan, keterampilan, dan partisipasi peserta dalam mengembangkan destinasi wisata berbasis kopi yang memperhatikan aspek ekonomi, sosial, budaya, dan lingkungan. Selain itu, pelatihan ini mendorong terbentuknya ide strategis seperti Festival Kopi Arabika Sinjai dan pengembangan produk turunan kopi oleh kelompok masyarakat. Dengan demikian, kegiatan ini tidak hanya memperkuat identitas lokal, tetapi juga membuka peluang diversifikasi ekonomi yang inklusif bagi masyarakat.

DEVELOPMENT OF MOBILE-BASED FREELANCE SERVICES MARKETPLACE WITH FEATURE-DRIVEN DEVELOPMENT METHODOLOGY Nurdiansyah, Mochamad Ikhsan; Kusumo, Dana Sulistyo; Ramadhan, Arief
Jurnal Teknik Informatika (Jutif) Vol. 5 No. 5 (2024): JUTIF Volume 5, Number 5, Oktober 2024
Publisher : Informatika, Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52436/1.jutif.2024.5.5.2569

The rapid advancement of technology demands that humans adapt to the evolving workplace. One of the impacts of technological development is the emergence of freelancers who use online platforms. Online platforms make it easier for freelancers and clients to collaborate. Currently, there are various Freelance Services Marketplace platforms available. However, it is important to note that the developers of these platforms are from outside Indonesia, which poses a risk to the security of people's data and the ease of payment applicable in Indonesia. With the high number of mobile device users in Indonesia,, the development of a mobile-based Freelance Services Marketplace application system that is tailored to local needs and takes into account the data security of Indonesian people, as well as involving local developers, is needed. This research aims to overcome these problems by designing a mobile-based freelance services marketplace application system using the Feature-Driven Development (FDD) method. The selection of FDD as an application development methodology is based on complex feature requirements, good planning management, emphasis on feature quality, and structured. The development process follows the FDD approach starting from feature planning and design, scheduling, implementation, and testing. The application design in this research is based on user needs with a focus on the features needed. This solution is important because it can be used by clients to find freelancers who match their needs and provide opportunities for freelancers to offer their services properly with guaranteed data security and transactions. The main result of this research is that the FDD method can help in the development of a freelance service marketplace application by paying attention to the systematic or structured level, quality, and security of the application.

Trends and Future Outlook for Mobile Application Development Using Design Thinking Approach: A Systematic Literature Review Saputra, Prasetya Cahya; Ramadhan, Arief
ULTIMA InfoSys Vol 15 No 2 (2024): Ultima Infosys: Jurnal Ilmu Sistem Informasi
Publisher : Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/si.v15i2.3446

In today's technological world, mobile-based application development has become a crucial and integral element for achieving competitive advantage. Various fields have tried to create mobile applications. One widely used method is Design Thinking, which focuses on creating more innovative, user-focused, and contextual solutions. This writing reviews mobile application development using the Design Thinking approach as the main method. In this research, the author explores the basic principles of Design Thinking, its processes, and how they can be applied effectively in the stages of mobile application development. The authors also analyze the benefits derived from this approach, including improved product quality, positive user response, and the potential to meet changing market needs. The results illustrate that the Design Thinking approach is not just an application development tool, but also a philosophy that drives better innovation and more relevant solutions. This SLR will display research results to what extent the Design Thinking approach in mobile application development has been used.

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