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All Journal ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Computer Science (CO-SCIENCE) Jurnal Alat Berat
Musrinah Musrinah
Politeknik Negeri Bandung
Automotive Engineering Computer Science & IT Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Journal : computer science co-science

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Integrating LLM Intent-Aware Approach for Enhancing the Quality of Bundle Recommendations Andy Maulana Yusuf; Musrinah Musrinah
Computer Science (CO-SCIENCE) Vol. 6 No. 2 (2026): July 2026
Publisher : LPPM Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/co-science.v6i2.12101

Abstract

Digital grocery shopping has shifted consumer patterns toward multi- item purchasing. While bundle recommendation systems address this, existing models relying on product ID co-occurrence fail to capture the mixed shopping intentions inherent in consumer baskets. To address these limitations, we propose Intent-aware Bundle Recommendation (IABR), a framework shifting from structural matching to semantic intent reasoning. IABR utilizes Large Language Models to decompose baskets into coherent sub-packages. Subsequently, we fine- tuned Gemma-3-4B using Parameter-Efficient Fine-Tuning to generate narrative intent descriptions regarding short-term shopping missions and long-term sustainable user lifestyles. These intents are encoded via Sentence Transformers for semantic retrieval. Extensive testing on the Instacart dataset demonstrates IABR’s significance against baselines like BGCN. Our IABR method achieved a Recall@20 of 28.15% while improving diversity scores by 12% (p < 0.05). This validates that generative semantic modeling enables accurate next- bundle predictions, effectively balancing precision with thematic variation and personalization.
Co-Authors Agoeng Harjatmo Rahardjo Agung Dwi Nugroho Ali Abrar Andy Maulana Yusuf Dini Oktavitasari Ignatius Riyadi Mardiyanto Rian Suryadi Ridwan Nurdin SRI PARYANTO MURSYID SRI UTAMI Subur Mulyanto Tjatur Udjianto WILDAN ARASSID Yudi Kurniawan