Hee Jun Lee, Yang Sok Kim, Won Seok Lee, In Hyeok Choi, Choong Kwon Lee
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引用次数: 0
Abstract
Selecting appropriate tourist attractions to visit in real time is an important problem for travellers. Since recommenders proactively suggest items based on user preference, they are a promising solution for this problem. Travellers visit tourist attractions sequentially by considering multiple attributes at the same time. Therefore, it is desirable to consider this when developing recommenders for tourist attractions. Using GRU4REC, we proposed RNN-based sequence-aware recommenders (RNN-SARs) that use multiple sequence datasets for training the recommended model, named multi-RNN-SARs. We proposed two types of multi-RNN-SARs—concatenate-RNN-SARs and parallel-RNN-SARs. In order to evaluate multi-RNN-SARs, we compared hit rate (HR) and mean reciprocal rank (MRR) of the item-based collaborative filtering recommender (item-CFR), RNN-SAR with the single-sequence dataset (basic-RNN-SAR), multi-RNN-SARs and the state-of-the-art SARs using a real-world travel dataset. Our research shows that multi-RNN-SARs have significantly higher performances compared to item-CFR. Not all multi-RNN-SARs outperform basic-RNN-SAR but the best multi-RNN-SAR achieves comparable performance to that of the state-of-the-art algorithms. These results highlight the importance of using multiple sequence datasets in RNN-SARs and the importance of choosing appropriate sequence datasets and learning methods for implementing multi-RNN-SARs in practice.
期刊介绍:
CAAI Transactions on Intelligence Technology is a leading venue for original research on the theoretical and experimental aspects of artificial intelligence technology. We are a fully open access journal co-published by the Institution of Engineering and Technology (IET) and the Chinese Association for Artificial Intelligence (CAAI) providing research which is openly accessible to read and share worldwide.