https://scholars.lib.ntu.edu.tw/handle/123456789/119337
Title: | 針對時間有限的產品之以排名為基礎的推薦式系統 Ranking-based Recommendation System for Time-limited Products |
Authors: | 陳彥齊 Chen, Yen-chi |
Keywords: | 推薦式系統;時間有限產品;矩陣分解;Recommendation system;Time-limited products;Matrix factorization | Issue Date: | 2015 | Abstract: | 在這份論文當中,我們解決了物品有生命時間限制的排序式推薦問題。我們考慮``時間有限''的物品可能會在某個時間點後失效。透過修改貝氏機率排序模型,這個模型能夠優化排序推薦,我們解決單一類別協同式過濾問題。 根據如此,我們提出兩個增強的模型,一、針對生命時間有限的物品,一個取負樣的技巧。二、一個可以把物品生命週期的時間特色模擬進來的模型。 透過在Kiva.org的資料實驗,我們驗證我們的增強模型有效。 In this work, we solve the ranking-based recommendation task given products with limit life in predicting the preference rank of users on items. We consider the `time-limit'' items that can be expired after certain point. We propose to modify the Bayesian Personalize Ranking (BPR) framework to solve the one-class collaborative filtering problem, which directly optimizes the task for ranking. We proposed two enhancements: A time-limit negative sampling technique attempts to solve the ranking predicting task for time-limit items; and a time-aware model attempt to model the temporal effect in its whole life. Experiments on Kiva.org datasets show the merit of the proposed enhancement. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/275506 | Rights: | 論文公開時間: 2015/8/20 論文使用權限: 同意有償授權(權利金給回饋學校) |
Appears in Collections: | 資訊工程學系 |
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ntu-104-R02922044-1.pdf | 23.32 kB | Adobe PDF | View/Open |
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