Technical Projects

Data Science, Machine Learning, and Full-Stack development projects. From statistical analysis and deep learning models to production web and mobile applications.

Showing 6 projects

Healthcare NLP Application

Medical Anamnesis Chatbot with NLP (Chatbot PUSTU)

Production-ready medical chatbot achieving 92.61% intent classification accuracy using Multinomial Naive Bayes for Indonesian Puskesmas healthcare anamnesis workflow. Automated training data generation via Gemini Flash 2.0 API with custom NLP preprocessing pipeline built from scratch.

#nlp#healthcare#full-stack

2025View detailsView

Emergency Mobile Application

MyFriends - Emergency SOS & Contact Management App

Production-ready emergency SOS app with multi-layered persistent notification system (foreground + background + 60 scheduled alarms), real-time location sharing, and comprehensive contact management using Flutter and Firebase.

#flutter#firebase#emergency-app

2025View detailsView

Backend API & Cloud Infrastructure

Restaurant Management System - Backend API

Production-ready RESTful API for restaurant management with comprehensive RBAC, JWT authentication (access + refresh tokens), advanced filtering & pagination, order workflow state machine, and real-time table status management. Deployed on AWS EC2 with Elastic IP for stable endpoint.

#nodejs#rest-api#aws

2025View detailsView

Simulation & Modeling

E-Commerce Trust Simulation with LLM-Powered Agents

Agent-based simulation using MESA framework with 7,580 LLM-powered autonomous agents to quantify fake review manipulation impact on e-commerce conversion rates, demonstrating +54-72pp increase in targeted low-quality products through rigorous statistical validation (Chi-Square = 121-177, p less than 0.0001).

#agent-based-modeling#llm#statistical-analysis

2025View detailsView

Natural Language Processing

Aspect-Based Sentiment Analysis on Financial News

Fine-tuned RoBERTa-base model for aspect-based sentiment analysis on 10,686 financial news headlines achieving 86.67% accuracy on entity-level sentiment classification with comprehensive handling of severe class imbalance through weighted loss and regularization techniques.

#nlp#sentiment-analysis#deep-learning

2025View detailsView

Web Security Application

LockIn - Password Manager

A secure, zero-knowledge password manager web application with client-side encryption, designed to protect user privacy while providing seamless password management across any browser.

#security#password-manager#web

2025View detailsView