@article{ART003349272},
author={Sungho Choi and Minho Kim and Namgyu Kim},
title={Improving RecFormer with Sliding Window-Based Data Augmentation},
journal={Journal of The Korea Society of Computer and Information},
issn={1598-849X},
year={2026},
volume={31},
number={6},
pages={45-53}
TY - JOUR
AU - Sungho Choi
AU - Minho Kim
AU - Namgyu Kim
TI - Improving RecFormer with Sliding Window-Based Data Augmentation
JO - Journal of The Korea Society of Computer and Information
PY - 2026
VL - 31
IS - 6
PB - The Korean Society Of Computer And Information
SP - 45
EP - 53
SN - 1598-849X
AB - With the rapid growth of the online content market, personalized recommendation systems have become increasingly important, yet Cold-start issues caused by data scarcity remain a critical challenge in new IP content environments. While existing ID-based sequential recommendation models fail to leverage textual attributes, RecFormer—built on the Longformer architecture—also suffers from performance degradation when training data is sparse. This paper proposes a Sliding Window-based data augmentation method for RecFormer, generating multiple training samples from a single user interaction sequence. Experiments on the Amazon Scientific Review dataset show that the proposed method consistently outperforms the baseline RecFormer across all metrics, with greater gains observed under more severe data sparsity conditions.
KW - RecFormer;Sliding Window;Data Augmentation;Cold-start;Text-based Recommendation
DO -
UR -
ER -
Sungho Choi, Minho Kim and Namgyu Kim. (2026). Improving RecFormer with Sliding Window-Based Data Augmentation. Journal of The Korea Society of Computer and Information, 31(6), 45-53.
Sungho Choi, Minho Kim and Namgyu Kim. 2026, "Improving RecFormer with Sliding Window-Based Data Augmentation", Journal of The Korea Society of Computer and Information, vol.31, no.6 pp.45-53.
Sungho Choi, Minho Kim, Namgyu Kim "Improving RecFormer with Sliding Window-Based Data Augmentation" Journal of The Korea Society of Computer and Information 31.6 pp.45-53 (2026) : 45.
Sungho Choi, Minho Kim, Namgyu Kim. Improving RecFormer with Sliding Window-Based Data Augmentation. 2026; 31(6), 45-53.
Sungho Choi, Minho Kim and Namgyu Kim. "Improving RecFormer with Sliding Window-Based Data Augmentation" Journal of The Korea Society of Computer and Information 31, no.6 (2026) : 45-53.
Sungho Choi; Minho Kim; Namgyu Kim. Improving RecFormer with Sliding Window-Based Data Augmentation. Journal of The Korea Society of Computer and Information, 31(6), 45-53.
Sungho Choi; Minho Kim; Namgyu Kim. Improving RecFormer with Sliding Window-Based Data Augmentation. Journal of The Korea Society of Computer and Information. 2026; 31(6) 45-53.
Sungho Choi, Minho Kim, Namgyu Kim. Improving RecFormer with Sliding Window-Based Data Augmentation. 2026; 31(6), 45-53.
Sungho Choi, Minho Kim and Namgyu Kim. "Improving RecFormer with Sliding Window-Based Data Augmentation" Journal of The Korea Society of Computer and Information 31, no.6 (2026) : 45-53.
