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- W3016684670 abstract "This paper examines the relationship between user pageview (PV) histories and their item-choice behavior on an e-commerce website. We focus on PV sequences, which represent time series of the number of PVs for each user--item pair. We propose a shape-restricted optimization model that accurately estimates item-choice probabilities for all possible PV sequences. This model imposes monotonicity constraints on item-choice probabilities by exploiting partial orders for PV sequences, according to the recency and frequency of a user's previous PVs. To improve the computational efficiency of our optimization model, we devise efficient algorithms for eliminating all redundant constraints according to the transitivity of the partial orders. Experimental results using real-world clickstream data demonstrate that our method achieves higher prediction performance than that of a state-of-the-art optimization model and common machine learning methods." @default.
- W3016684670 created "2020-04-24" @default.
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- W3016684670 date "2020-04-18" @default.
- W3016684670 modified "2023-09-23" @default.
- W3016684670 title "Predicting Online Item-choice Behavior: A Shape-restricted Regression Perspective" @default.
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- W3016684670 doi "https://doi.org/10.48550/arxiv.2004.08519" @default.
- W3016684670 hasPublicationYear "2020" @default.
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