The expansion of online retail markets has driven the development of personalized product recommendation services leveraging platform-based product and customer data. Large retailers have implemented seller-oriented recommendation systems, where AI analyzes POS sales data to identify similar stores and recommend products not yet introduced but successful elsewhere. However, small and medium-sized retailers face challenges in adapting to rapidly evolving online market trends due to limited resources. This study proposes a recommendation algorithm tailored for small-scale retailers using sales data from an online shopping mall. We analyzed 600,000 transaction records from 13,607 sellers and 95,938 products, focusing on Beauty Supplies, Kitchenware, and Cleaning Supplies categories. Three algorithms—Attentional Factorization Machines (AFM), Deep Factorization Machines (DeepFM), and Neural Collaborative Filtering (NCF)—were applied to recommend top 10% weekly sales items, with an ensemble model integrating their strengths. To address class imbalance, the Synthetic Minority Oversampling Technique (SMOTE) was employed, and performance was evaluated using AUC, Accuracy, Precision, and Recall metrics on separate training and test datasets. The ensemble model outperformed individual models across all metrics, while DeepFM excelled in Precision. These findings demonstrate that ensemble-based recommendation algorithms enhance recommendation accuracy for suppliers in large-scale online retail environments, offering practical implications for small-scale retailers.

1. 서 론
2. 관련연구
    2.1 온라인 추천 서비스 관련 연구
    2.2 판매상품추천 실증 모델
3. 데이터 전처리 및 추천모델
    3.1 활용 데이터
    3.2 데이터 전처리
    3.3 추천 알고리즘 학습
4. 성능 평가
    4.1 알고리즘 성능 평가
5. 한계 및 향후연구
Acknowledgement
References

• Dong-Gil Na(Electronics and Telecommunications Research Institute) | 나동길 (한국전자통신연구원 우정, 물류기술 연구센터) Corresponding author
• Sangil Lee(Electronics and Telecommunications Research Institute) | 이상일 (한국전자통신연구원 우정, 물류기술 연구센터)