Invariant representation learning for sequential recommendation

• URL: http://arxiv.org/abs/2308.11728v2
• Date: Mon, 07 Oct 2024 19:45:56 GMT
• Title: Invariant representation learning for sequential recommendation
• Authors: Xiaofan Zhou,
• Abstract summary: Sequential recommendation involves automatically recommending the next item to users based on their historical item sequence. We introduce a novel sequential recommendation framework named Irl4Rec. This framework harnesses invariant learning and employs a new objective that factors in the relationship between spurious variables and adjustment variables during model training.
• Score: 0.0
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• Abstract: Sequential recommendation involves automatically recommending the next item to users based on their historical item sequence. While most prior research employs RNN or transformer methods to glean information from the item sequence-generating probabilities for each user-item pair and recommending the top items, these approaches often overlook the challenge posed by spurious relationships. This paper specifically addresses these spurious relations. We introduce a novel sequential recommendation framework named Irl4Rec. This framework harnesses invariant learning and employs a new objective that factors in the relationship between spurious variables and adjustment variables during model training. This approach aids in identifying spurious relations. Comparative analyses reveal that our framework outperforms three typical methods, underscoring the effectiveness of our model. Moreover, an ablation study further demonstrates the critical role our model plays in detecting spurious relations.

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