@techreport{oai:ipsj.ixsq.nii.ac.jp:00203073,
 author = {Renlou, Weng and Masao, Takaku and Renlou, Weng and Masao, Takaku},
 issue = {1},
 month = {Feb},
 note = {Recent years, recommender systems (RSs) are being used in many scenarios, such as online shopping stores, movie website and so on. However, many recommendation algorithms focus on accuracy based on a user profile, which may lead to reducing the user's satisfaction. This paper focuses on improving serendipity in RSs. In order to improving serendipity in book RS, two approaches are used in this paper: Linked Open Data (LOD) resource and author-oriented method. In addition, we implement our book RS and conducted a user experiment for evaluating the serendipity in book RS. We set two metrics for evaluating serendipity. As a result, the ratio of serendipitous books in top-10 list is 38.57% for author-oriented. Additionally, our method shows higher Novelty than baseline, even if Unexpectedness and Relevance are the same level with the baseline. Moreover, our method based recommendation tends to be more difficult for users to discover and much to users' surprise., Recent years, recommender systems (RSs) are being used in many scenarios, such as online shopping stores, movie website and so on. However, many recommendation algorithms focus on accuracy based on a user profile, which may lead to reducing the user's satisfaction. This paper focuses on improving serendipity in RSs. In order to improving serendipity in book RS, two approaches are used in this paper: Linked Open Data (LOD) resource and author-oriented method. In addition, we implement our book RS and conducted a user experiment for evaluating the serendipity in book RS. We set two metrics for evaluating serendipity. As a result, the ratio of serendipitous books in top-10 list is 38.57% for author-oriented. Additionally, our method shows higher Novelty than baseline, even if Unexpectedness and Relevance are the same level with the baseline. Moreover, our method based recommendation tends to be more difficult for users to discover and much to users' surprise.},
 title = {Author-Oriented Book Recommendation Using Linked Open Data for Improving Serendipity},
 year = {2020}
}