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All Journal Jurnal Edukasi dan Penelitian Informatika (JEPIN) Jurnal Nasional Komputasi dan Teknologi Informasi Infotekmesin Journal of Information Systems and Informatics Madani : Indonesian Journal of Civil Society Journal Of Academia In English Educations (JADEs) EXPLORER
Cahya Vikasari, Cahya
Politeknik Negeri Cilacap
Aerospace Engineering Arts Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Neuroscience Social Sciences Transportation Other

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Metode Economic Order Quantity dalam Sistem Bandar Barang Bekas (SiBandar) Vikasari, Cahya; Purwanto, Riyadi; Prasetyanti, Dwi Novia
Infotekmesin Vol 14 No 2 (2023): Infotekmesin: Juli, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i2.1937

Abstract

Junk goods are no longer piles of worthless goods for businessmen who are keen to see the economic value by taking this opportunity by becoming a pelapak company to buy and sell junk goods purchased from collectors to be sold to buyers. The problems found with Pelapak include the manual recording of sales administration which has the potential to cause recording errors. Pelapak does not know for sure the stock of junk they own and those owned by collectors because the locations of the collectors are far apart. Orders of junk goods between pelapak and collectors are still via telephone so pelapak does not know which collectors are in the process of sending goods. Problems also occur on the part of collectors including unprofessional sales transactions. Based on these problems, a used goods stock management system is needed using the Economic Order Quantity (EOQ) method. The purpose of this study is to build a used goods stock management information system that can monitor the availability of used goods owned by collectors and pelapak. System development uses the prototype method and designs with concepts. The results of the research are that the system created can help find out the stock and the amount in each collector, recap sales reports, provide accurate information, facilitate business transactions and fulfill sales targets to buyers.
Assessing Cilacap State Polytechnic Students' Ability to Conduct English Proficiency Test: Challenges and Strategies Widianingsih, Betti; Vikasari, Cahya; Hazrina, Fadhillah; Prabowo, Annas Setiawan
JADEs Journal of Academia in English Education Vol 6 No 1 (2025): JADEs Journal of Academia in English Education
Publisher : Tadris Pendidikan Bahasa Inggris IAIN Langsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32505/jades.v6i1.11456

Abstract

The purpose of this study was to evaluate Cilacap State Polytechnic students' readiness for the EPT-P and determine the obstacles they encounter as well as the strategies they employ to pass the test. This research used a mixed-methods case study design. To collect data, it used test and questionnaires which refer to the theory of Self-Regulated Learning, Test Taking Strategy, TAM and study of interlanguage. Analysis was based on Likert scale responses. It involved 60 final-year students of Cilacap State Polytechnic in the academic year of 2021/2022 from different study programmes. The study found that students at the State Polytechnic of Cilacap had a general lack of English competence, with just 25 out of 60 (41%) scoring over the 400 EPT-P pass score. Key issues were linguistic difficulties 37 students (62%) struggled with long reading texts, 41 (68%) struggled with essay writing, and 40 (67%) had difficulty listening, with 17 (28%) strongly agreeing. Psychological challenges were particularly significant: 28 students (47%) reported anxiety, while 44 (73%) reported losing focus. Technological and resource challenges were prominent, with 40 students (67%) lacking preparation materials and 55 (92%) never having had official instruction. Furthermore, 33 students (55%) considered the listening equipment unclear, and 54 (90%) thought the test was overpriced. Only 16 students (27%) prepared mentally and physically, while only 9 (15%) took classes. These findings, which were backed by many language learning and educational theories, emphasise the importance of economical training, easily accessible materials, and personalised coaching in improving student performance.
Optimized K-Means Clustering for Web Server Anomaly Detection Using Elbow Method and Security-Rule Enhancements Trianto, Rahmawan Bagus; Muin, Muhammad Abdul; Vikasari, Cahya
Journal of Information System and Informatics Vol 7 No 4 (2025): December
Publisher : Asosiasi Doktor Sistem Informasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63158/journalisi.v7i4.1391

Abstract

Anomaly detection in web server environments is essential for identifying early indicators of cyberattacks that arise from abnormal request behaviors. Traditional signature-based mechanisms often fail to detect emerging or obfuscated threats, requiring more adaptive analytical approaches. This study proposes an optimized anomaly detection model using K-Means clustering enhanced with engineered security-rule features and the Elbow Method. Two datasets were used: a small dataset of 3,399 log entries from one VPS and a large dataset of 223,554 entries collected from three VPS nodes, all sourced from local production servers of the Department of Computer and Business, Politeknik Negeri Cilacap. The preprocessing pipeline includes timestamp normalization, removal of non-informative static resources, numerical feature scaling, and TF-IDF encoding of URL paths. Domain-driven security features entropy scores, encoded-payload indicators, abnormal status-code ratios, and request-rate deviations were integrated to improve anomaly separability. Experiments across five model configurations show that combining larger datasets with rule-based features significantly enhances clustering performance, achieving a Silhouette Score of 0.9136 and a Davies–Bouldin Index of 0.4712. The results validate the effectiveness of incorporating security-rule engineering with unsupervised learning to support early-warning threat detection in web server environments.
Optimalisasi Platform Digital: Studi Kasus Perancangan Website Profil Berfitur Virtual Tour 360° untuk Meningkatkan Digital Exposure Desa Widarapayung Wetan Prihantara, Andesita; Purwanto, Riyadi; Prasetyanti, Dwi Novia; Listyaningrum, Rostika; Vikasari, Cahya; Rahadi, Nur Wahyu; Abda'u, Prih Diantono
Jurnal Nasional Komputasi dan Teknologi Informasi (JNKTI) Vol 8, No 6 (2025): Desember 2025
Publisher : Program Studi Teknik Komputer, Fakultas Teknik. Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jnkti.v8i6.10044

Abstract

Abstrak - Permasalahan utama yang dihadapi Desa Wisata Widarapayung adalah rendahnya digital exposure (paparan digital) yang berimbas pada terbatasnya daya tarik bagi wisatawan domestik. Meskipun memiliki potensi wisata pantai yang indah dan pengelolaan yang baik, strategi promosi yang ada belum mengoptimalkan platform digital yang imersif dan mudah diakses. Penelitian ini bertujuan mengatasi kesenjangan tersebut melalui pengembangan sebuah website profil desa yang mengintegrasikan fitur Virtual Tour 360°. Metode pengembangan sistem menggunakan pendekatan Multimedia Development Life Cycle (MDLC) yang terdiri atas tahap konseptual, perancangan, pengumpulan materi, pembuatan, pengujian, dan distribusi. Hasil dari penelitian ini adalah sebuah website fungsional yang berhasil memetakan seluruh area wisata utama ke dalam pengalaman visual Virtual Tour 360°. Implementasi sistem ini memberikan manfaat signifikan dalam meningkatkan digital exposure dan daya tarik visual destinasi, yang ditunjukkan dengan respons positif dari pengelola wisata dan pengunjung website selama uji coba. Sistem ini tidak hanya berfungsi sebagai media promosi yang inovatif, tetapi juga menjadi model yang dapat diadopsi oleh desa wisata lainnya untuk memperkuat kehadiran mereka di dunia digital.Kata kunci: Digital Exposure; Virtual Tour 360°; Website Profil Desa; Desa Wisata; MDLC; Abstract - The main problem faced by Widarapayung Tourism Village is low digital exposure, which limits its appeal to domestic tourists. Despite its beautiful beach tourism potential and good management, existing promotional strategies have not optimized immersive and easily accessible digital platforms. This study aims to address this gap by developing a village profile website that integrates a 360° Virtual Tour feature. The system development method uses the Multimedia Development Life Cycle (MDLC) approach, which consists of conceptualization, design, material collection, creation, testing, and distribution stages. The result of this research is a functional website that successfully maps all major tourist areas into a 360° Virtual Tour visual experience. The implementation of this system provides significant benefits in increasing the digital exposure and visual appeal of the destination, as demonstrated by the positive responses from tourism managers and website visitors during the trial period. This system not only functions as an innovative promotional medium, but also serves as a model that can be adopted by other tourist villages to strengthen their presence in the digital world.Keywords : Digital Exposure; 360° Virtual Tour; Village Profile Website; Tourism Village; MDLC;
Co-Authors Annas Setiawan Prabowo Annisa Romadloni Hazrina, Fadhillah Isa Bahroni, Isa Listyaningrum, Rostika Lutfi Syafirullah Muhammad Abdul Muin Prasetyanti, Dwi Novia Prih Diantono Abda`u Prihantara, Andesita Rahadi, Nur Wahyu Rahadi, Nur Wahyu Rahmawan Bagus Trianto Ratih Hafsarah Maharrani Riyadi Purwanto Wahyu Rahadi, Nur Widianingsih, Betti