Riyanto Riyanto

Application of the Vector Machine Support Method in Twitter Social Media Sentiment Analysis Regarding the Covid-19 Vaccine Issue in Indonesia

2021 · Journal of Applied Data Sciences

According to the Indonesian government, Indonesia has been afflicted by Covid-19 since March 2, 2020. Numerous countries, including Indonesia, have made efforts, but with the spread of perceptions, rumors, and a flood of information into …

A Qualitative Analysis and Systematic Literature Review in Enhancing Leadership Competencies for Sustainable Maritime Practices in Vocational Training

2025 · Digital Innovation

The maritime industry is facing a critical shift toward sustainability, particularly through the green shipping transition. This research was conducted to explore how maritime vocational programs are developing leadership competencies necessary to manage sustainable maritime …