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cross-domain recommendation 1large language models 1model merging 1sequential recommendation 1sharpness-aware training 1

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cs.IR2026

Sharpness-aware Model Merging with Salience Recovery for LLM-based Cross-Domain Sequential Recommendation

Huwei Ji, Jiajie Su, Yuyuan Li +2

The paper introduces SharpRec, a method that merges large language models for cross-domain sequential recommendation by using sharpness-aware geometric alignment and preference sal…