Article Per Year (5 Year)
p-Index From 2021 - 2026
0.751
P-Index
This Author published in this journals
All Journal International Journal of Marine Engineering Innovation and Research Jurnal Ilmu Sosial dan Humaniora International Journal of Science and Society (IJSS)
Derma Watty Sihombing
Sekolah Tinggi Ilmu Pelayaran Jakarta
Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Transportation

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
Prediction of Ship Time in Port Using Machine Learning Algorithm Ronald Simanjuntak; Mauritz Sibarani; Tri Cahyadi; Derma Watty Sihombing; Marudut Bernadtua; Rosna Yuherlina
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 2 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i2.6371

Abstract

Effective time management is crucial in the shipping business at ports, ensuring smooth operations from a ship’s arrival to its departure. Delays in port can disrupt sailing schedules, leading to inefficiencies in logistics and increased operational costs. This study aims to predict the duration of a ship's stay in port, focusing on container and general cargo ships. Accurate predictions can help optimize scheduling and resource allocation. The research applies machine learning techniques, utilizing historical arrival and departure data from Tanjung Priok Port for 2022 and 2023. Four algorithms were evaluated: Random Forest, Linear Regression, K-Nearest Neighbors (KNN) Regression, and Support Vector Machine (SVM). Results indicate that Linear Regression provides the most accurate predictions, outperforming other models in terms of Mean Absolute Error (MAE), Mean Squared Error (MSE), and Root Mean Squared Error (RMSE). Additionally, its coefficient of determination (R2) is closest to one, confirming its reliability for forecasting ship turnaround times.
Global Competence at Sea: International Relations, Intercultural Understanding, and English Proficiency in Maritime Vocational Training Ihsan Ahda Tanjung; Derma Watty Sihombing
International Journal of Science and Society (IJSS) Vol. 2 No. 2 (2026): December
Publisher : Marasofi International Media and Publishing (MIMP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64123/ijss.v2.i2.3

Abstract

Internationally trading vessels require deck officers to operate simultaneously within international maritime governance, multicultural professional environments, and English-mediated communication. However, these competencies are commonly taught as separate curriculum components, with limited integration in maritime vocational education. This study examined global maritime competence among 180 Nautika cadets from AMANJAYA, AMD, and STMT Malahayati between April and September 2025. A concurrent mixed-methods design was employed using the Maritime International Relations Knowledge Scale, Intercultural Communication Competency Scale, and English Communication Proficiency Test, complemented by focus group discussions with 12 senior lecturers and interviews with 45 maritime industry professionals. Structural equation modelling demonstrated that international relations knowledge, intercultural competency, and English communication proficiency constituted an integrated competency construct (CFI=0.93; RMSEA=0.063; SRMR=0.071). Intercultural competency recorded the lowest mean score (M=3.18/5.00) and was identified by 64.4% of industry professionals as a frequent or persistent factor affecting early career performance. Only 31.1% considered recent Indonesian graduates adequately prepared for multinational crew coordination. Qualitative analysis identified three curriculum barriers: the Neutral Language Myth, Governance Without Context, and Contact Without Competency. The findings indicate that global maritime competence should be addressed through integrated curriculum design rather than isolated courses. Practical reform should contextualize English communication materials culturally, incorporate governance and geopolitical contexts into maritime regulation instruction, and explicitly process multicultural exposure through intercultural competency activities without requiring additional contact hours.
Smart Port Technology Readiness and Multidisciplinary Curriculum Integration in Vocational Maritime Education Derma Watty Sihombing; Widianti Lestari
International Journal of Science and Society (IJSS) Vol. 2 No. 2 (2026): December
Publisher : Marasofi International Media and Publishing (MIMP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64123/ijss.v2.i2.4

Abstract

Smart port technologies are increasingly transforming port operations and creating new competency requirements for deck officers, while vocational maritime education has not fully incorporated these developments into existing curricula. This study examined the smart port technology readiness of Nautika cadets, identified industry and curricular gaps, and evaluated an integrated instructional intervention. A sequential mixed-methods design was employed involving 180 Level 2 and Level 3 Nautika cadets from AMANJAYA, AMD, and STMT Malahayati, 30 maritime industry professionals, and 12 Nautika lecturers. Quantitative data were collected using the 50-item Smart Port Technology Readiness Index (SPTRI), while qualitative data were obtained through focus group discussions and industry interviews. A Technology Integration Module (TIM) was subsequently implemented with 60 cadets and compared with a matched group of 60 cadets. The baseline overall SPTRI score was 2.77/5.00, indicating a developing level of readiness, while machine learning comprehension recorded the lowest score at 2.48/5.00. Only 27% of industry professionals considered recent Indonesian Nautika graduates adequately prepared for smart port interaction. Following the intervention, the pilot group increased from 2.75 to 3.94, with an overall Cohen's d of 2.24, whereas the comparison group showed minimal change. The findings demonstrate substantial technology-readiness gaps and support the Multidisciplinary Technology Readiness framework as a practical curriculum integration model. Embedding smart port technology across existing Nautika courses can strengthen cadet readiness without creating additional courses.
Career Transition Pathways for Veteran Officers to Shore-Based Roles: Institutional Support and Competency Gaps in the Indonesian Maritime Sector Saidal Siburian; Derma Watty Sihombing; Fahmi Umangsangaji; Rosna Y. Siahaan
SOSMANIORA: Jurnal Ilmu Sosial dan Humaniora Vol. 5 No. 3 (2026): September 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/sosmaniora.v5i3.7744

Abstract

The transition of experienced seafarers into shore-based educational and supervisory roles remains a critical yet underexplored area of maritime human resource management. This study examines the career transition pathways, institutional support structures, and competency gaps that affect veteran officers transitioning into shore-based roles at Sekolah Tinggi Ilmu Pelayaran (STIP) Jakarta, Indonesia. A qualitative multi-stakeholder methodology was employed, involving 71 respondents, including veteran officers, former seafarer-lecturers, cadets, management lecturers, industry practitioners, and former senior transportation officials. Thematic analysis and cross-group comparisons reveal that while veteran officers bring substantial operational expertise to the institution, significant barriers—such as insufficient pedagogical training, unclear role definitions, and lack of structured career development frameworks—hinder their full professional integration and limit their contributions. The study proposes a competency-based transition framework that addresses current eco-digital maritime transformation demands and offers practical recommendations for enhancing Indonesian maritime human resource governance. This framework aims to better support veteran officers in adapting to shore-based educational and supervisory roles, contributing to broader institutional reform and fostering greater synergy between maritime industry needs and educational institutions.
Co-Authors Fahmi Umangsangaji Ihsan Ahda Tanjung Marudut Bernadtua Simanjuntak Mauritz Sibarani Ronald Simanjuntak Rosna Y. Siahaan Rosna Yuherlina Saidal Siburian Tri Cahyadi Widianti Lestari