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Hybrid Portfolio Optimizer Menggunakan Algoritma Ensemble Dinamis LSTM-XGBoost Berbasis XAI dan Walk-Forward Backtesting | BTP
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Hybrid Portfolio Optimizer Menggunakan Algoritma Ensemble Dinamis Lstm-xgboost Berbasis Xai Dan Walk-forward Backtesting

Founder: Diandra Chika Fransisca
Telkom University Purwokerto
11 April 2026
Hybrid Portfolio Optimizer Menggunakan Algoritma Ensemble Dinamis LSTM-XGBoost Berbasis XAI dan Walk-Forward Backtesting

Deskripsi

Hybrid Portfolio Optimizer Menggunakan Algoritma Ensemble Dinamis LSTM-XGBoost Berbasis XAI dan Walk-Forward Backtesting untuk prediksi return saham dan optimasi portofolio. Sistem menggabungkan LSTM untuk menangkap dependensi temporal dan XGBoost untuk menangkap pola non-linear, dengan ensemble weight dinamis berdasarkan performa validasi masing-masing model. Model dilatih secara walk-forward tanpa kebocoran data masa depan selama 22 periode rebalancing (2020-2025). Komponen Explainable AI (XAI) memberikan transparansi melalui hybrid feature importance dan penjelasan per saham terpilih. Fitur Utama Sistem: 1.⁠ ⁠Prediksi return 21 hari ke depan (ensemble LSTM + XGBoost) 2.⁠ ⁠Walk-forward backtesting 5 tahun, 22 periode rebalancing 3.⁠ ⁠Optimasi portofolio Sharpe maximization via SLSQP 4.⁠ ⁠Trailing stop-loss dinamis berbasis volatilitas (range 5%–12%) 5.⁠ ⁠Diversifikasi sektoral otomatis (maks 30% sektor, 20% per saham) 6.⁠ ⁠XAI hybrid: XGBoost gain-based + LSTM gradient saliency 7.⁠ ⁠Biaya transaksi: 0,2% beli + 0,2% jual Nilai Utama & Keunikan: 1.⁠ ⁠Kombinasi LSTM dan XGBoost dengan ensemble dinamis. 2.⁠ ⁠Menggunakan XAI untuk menggabungkan feature importance kedua model. 3.⁠ ⁠Evaluasi walk-forward tanpa data leakage. 4.⁠ ⁠Fokus pada saham berkapitalisasi besar dan likuid. 5.⁠ ⁠Trailing stop-loss adaptif berbasis volatilitas.

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Bandung Techno Park (BTP) is a center for innovation, business incubation, and technology development located within the Telkom University area in Bandung. BTP serves as a bridge between universities, industries, and the government to foster the creation of startups, applied research, and market-ready technology products. Its facilities include coworking spaces, incubation programs, and business mentoring to support Indonesia’s innovation ecosystem.
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