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Achievements

UNITY 14 – Data Mining

2nd Place · UKM Rekayasa Teknologi UNY · 2026

Proposed a Siamese DINOv2 Dual-Head architecture with self-supervised feature extraction and difference-based temporal fusion for bitemporal satellite building damage assessment on xBD dataset. Achieved 84.65% Damage F1 (+6.73% over baseline).

AXION 2025 – Data Science

1st Place · Avalon AI Community · 2025

Engineered an autoregressive rolling-forward ensemble (CatBoost, LightGBM, XGBoost) using time-series lags, physical/chemical sensor interactions, and temporal cyclical encoding for water turbidity prediction. Achieved 1st place on 14,600+ test samples (311.159 Private / 305.022 Public LB).

ACTION 2024 – Data Mining

1st Place · HIMASADA UNESA · Oct 2024

Engineered a LightGBM gradient boosting pipeline for global air quality prediction using WHO environmental datasets across 7,100+ monitoring sites. Achieved 1st place with 0.9558 Public / 0.9445 Private score.