온라인 의류 쇼핑을 위한 맞춤형 치수 추천 시스템: 협업 필터링 접근법
Personalized Size Recommender System for Online Apparel Shopping: A Collaborative Filtering Approach
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초록
본 연구는 의류의 디자인 간 치수의 불일치와 비표준화로 인해 온라인 구매 시 발생하는 치수선택의 오류 문제를 해결할 수 있는 방안을 제시하기 위해 수행되었다. 본 논문은 구매자에게 개인화된 치수를 제시할 수 있는 기계 학습 기반 추천 시스템의 구현 방안을 다루고 있다. 온라인상거래로부터 발생된 구매 데이터를 사용하여 비음수 행렬 분해(NMF), 특이값 행렬 분해(SVD), k-최근접 이웃(KNN), 공동 클러스터링(Co-Clustering) 등 여러 검증된 협업 필터링 알고리즘을 훈련하였고, 이들 간에 성능을 비교하였다. 연구 결과, 비음수 행렬 분해 (NMF) 알고리즘이 다른 알고리즘들보다 뛰어난 성능을 보임을 확인할 수 있었다. 동일한 계정을 사용하는 여러 구매자가포함되는 구매 데이터의 특성에도 불구하고, 제안 모형은 충분한 정확도를 보였다. 본 연구의 결과는 치수 선택의 오류로 인한 반품률을 감소하고 전자상거래 플랫폼에서의 고객 경험을 향상시키는 데 기여할 것으로 기대된다.
Abstract
This study was conducted to provide a solution to the problem of sizing errors occurring in online purchases due to discrepancies and non-standardization in clothing sizes. This paper discusses an implementation approach for a machine learning-based recommender system capable of providing personalized sizes to online consumers. We trained multiple validated collaborative filtering algorithms including Non-Negative Matrix Factorization (NMF), Singular Value Decomposition (SVD), k-Nearest Neighbors (KNN), and Co-Clustering using purchasing data derived from online commerce and compared their performance. As a result of the study, we were able to confirm that the NMF algorithm showed superior performance compared to other algorithms. Despite the characteristic of purchase data that includes multiple buyers using the same account, the proposed model demonstrated sufficient accuracy. The findings of this study are expected to contribute to reducing the return rate due to sizing errors and improving the customer experience on e-commerce platforms.
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