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Author

Bahtiar Imran

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Open access Jul 2026

A Leakage-Aware Ensemble Framework for Imbalanced Tabular Data: Mitigating SMOTE Contamination in Hotel Cancellation Prediction

Predictive modeling on large-scale, imbalanced tabular data is frequently compromised by target leakage and improper resampling, leading to inflated performance metrics. While tree-based ensemble methods like Random Forest (RF) and XGBoost are widely deployed, their architectural divergence in handling complex behavior...

Gibran Maulana Syamroni, Bahtiar Imran, Surni Erniwati et al. · 0 citations

CodeBERT-SENet: Adaptive Syntax-Semantic Fusion via Gated Attention for Python Bug Detection and Localization

This research proposes the first end-to-end multi-task architecture that jointly detects Python syntax errors and localizes their exact line position by adaptively fusing CodeBERT’s semantic embeddings with handcrafted syntactic features via a lightweight gating mechanism, without relying on Abstract Syntax Trees.

Rozali Ilham, Bahtiar Imran, Hasan Basri et al. · 0 citations

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