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Ekohariadi
Universitas Negeri Surabaya
Arts Humanities Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Physics Social Sciences Other

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Journal : Journal of Applied Data Sciences

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Clustering Cadet Training Performance Using K-Means and Ward's Method Evidence from OTMon Maritime Monitoring System Wahdiana, Dian; Ekohariadi, Ekohariadi; Suhartini, Ratna
Journal of Applied Data Sciences Vol 6, No 4: December 2025
Publisher : Bright Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47738/jads.v6i4.958

Abstract

This study investigates cadet performance segmentation during on-board maritime training using clustering analysis of data from the On Training Monitoring (OTMon) system. Grounded in the competency-based education framework and experiential learning theory, the research aims to identify behavioral patterns and competency levels among 80 maritime cadets over a twelve-month sea-based training program. The OTMon application continuously recorded task completion rates, feedback interactions, sign-on consistency, and report submissions. K-Means clustering and Principal Component Analysis (PCA) revealed three distinct cadet profiles: Cluster 1 (high-performing) with average task completion of 92.4% and feedback frequency of 15.2 times/month; Cluster 2 (administratively consistent) with 88.1% completion but only 6.3 feedback interactions/month; and Cluster 3 (at-risk) with 67.5% completion and 3.8 feedback interactions/month. Linear Discriminant Analysis (LDA) validated the clusters with 98.8% resubstitution accuracy and 97.6% cross-validation accuracy, supported by generalized squared distances above 9.5 between all cluster pairs, indicating strong separation. These findings demonstrate that unsupervised clustering can reliably distinguish high-performing cadets from those needing targeted intervention, enabling data-informed mentoring and adaptive learning strategies in maritime education. The contribution of this study lies in integrating digital monitoring data with both unsupervised and supervised machine learning methods to enhance competency assessment. The novelty is in applying maritime-specific learning analytics for real-time performance segmentation, offering a scalable diagnostic framework for improving supervision quality and supporting individualized cadet development in vocational training contexts.
Co-Authors Achmad Imam Agung Aftoni, Aftoni Ahmad Affandi Alfiyah, Ashfa Hani Ali Hasbi Ramadani Amalia, Laili Rizqi Nur Amanda Meilia Putri Anggraeni, Nevi Dila Restu Anistyasari, Yeni Anwar, Rara Kirana Aisyah Arbiantono, Muhammad Walid Aye Aye Mon Ayu Pusparini Bakir, Shelma Imara Buditjahjanto, I.G.P. Asto Çobanoğlu, Ömer Danial, Muhammad Izzat Dewi, Fany Rosita Dini, Nur Liza Mutiara Dio, Yeremia Alfa Elizabeth Titiek Winanti Emba, Nurun Decerachmi Erlangga, Muhammad Mirza Farid Baskoro Findastuti, Belvi Rilo Gapur, Shaffa Salsabillah Nadia Hamir, Dimas Tifli Irhami Happy Indra Chusnuraafi Happy Indra Chusnuraafi Heru Arizal Hidayatulloh, Muhammad Kris Yuan Hilmi, Mohamad Alfin I Gusti Putu Asto B I Gusti Putu Asto Buditjahjanto I. G. P. Asto Buditjahjanto I.G.P Asto Budi Tjahjanto IGP Asto Buditjahjanto Irfansyah, Juki Izzah, Hikmatul Julianto, Ahmad Kamal Asri Kurnia Dwi Ariyanti Kusstianti, Nia Lilik Anifah Luthfiyah Nurlaela Marniati Marniati Marniati Maulana Rachman Meini Sondang Meini Sondang Sumbawati Minan, Dhimas Aufarul Mochamad Cholik Muafa, Ahsan Muhammad Ashkhabul Ashlakh Mulyana, Mulyana Munoto Munoto Munoto Munoto Munoto Munoto Munoto Munoto Nafi'ah, Hoirotun Nanik Estidarsani Nugroho, Yuli Sutoto Pangga Aji Sanca Permatasari, Sonia Cindi Putra, First Nathanael Bobby Putri, Aninditya Elsa Putri, Eli Zuliana Raden Mohamad Herdian Bhakti Rahayu, Imami Arum Tri Rahman, Ghufran Fathur Rajabi, Muhammad Raras, Gustav Mandigo Anggana Ratna Suhartini Ratna Suhartini Rijanti, Tri Rina Harimurti Rizaldi, Rizky Taufan Rosana, Kenis Samani Samani Santoso, Agus Budi Saphira, Hanandita Veda Saqr, Mohammed Sar, Grica i Arik Fajriyanti Rachim Sari, Aprilia Wulan Mega Sari, Elda Ferdiana Savita, Sanindya Berlian Shintami C Hidayati Sholeh, Imam Siswati, Siswati Soeryanto Soeryanto Solikhah, Mela Imroatus Sriatun Sriatun Sriatun Sriatun Subuh Isnur Haryudo Suparji Suparji Tino Bambang Gunawan Tri Rijanto Tri Rijanto Tri Rijanto Tri Rijanto, Tri Rijanto Tri Setyo Prabowo, Tri Wahdiana, Dian Yanti, Huzaifa Dwi Yeni Anistyasari Yeni Anistyasari Yulianti, Ary Zhafiri, Luthfan Zulda, Ahshoha Qori'a