[Objective] This paper proposes a matrix factorization method (TCMF) integrating tags and contents, aiming to address the issue of heterogeneous information fusion in recommendation system. It tries to reduce prediction errors, overcome the problem of data sparsity, and improve the robustness of matrix factorization algorithm. [Methods] We transformed textual message to structured data with the help of embedding. Then, we extracted hidden features with CNN. Third, we merged the features of movie contents and tags with DNN to obtain comprehensive features. Finally, we proposed the TCMF based on matrix factorization algorithm and evaluated its performance with movie rating dataset (MovieLens-20m). [Results] The TCMF reduced the error of movie rating predictions (with the lowest RMSE of 0.829 5 and the lowest MAE of 0.618 9). Compared with the exisiting methods, the maxium reduction of RMSE and MAE were 9.62% and 14.17%. [Limitations] Due to the lack of information, the TCMF cannot characterize users’ personalized features. [Conclusions] The proposed model not only reduces the error of rating prediction, but also improves robustness of algorithm.
马莹雪,甘明鑫,肖克峻. 融合标签和内容信息的矩阵分解推荐方法*[J]. 数据分析与知识发现, 2021, 5(5): 71-82.
Ma Yingxue,Gan Mingxin,Xiao Kejun. A Matrix Factorization Recommendation Method with Tags and Contents. Data Analysis and Knowledge Discovery, 2021, 5(5): 71-82.
This series focuses on the NYPD’s Major Case Squad, a force of detectives who investigate high-profile cases, whilst also showing parts of the crime from the criminal's point of view to the audience.
故事情节
This show centers on the NYPD’s Major Case Squad (and the offbeat, Sherlock Holmes-like Detective Robert Goren) in its efforts to stop the worst criminal offenders in New York. It also puts a new twist to the “Law & Order” formula: now, in each episode, we see the crimes as they are planned and committed.
演员介绍
Kathryn Erbe was born on July 5, 1965 in Newton, Massachusetts, USA as Kathryn Elsbeth Erbe. She is known for her work on Law & Order: Criminal Intent (2001), Stir of Echoes (1999) and What About Bob? (1991). She was previously married to Terry Kinney.
用户评论
After seeing this show and having watched the other 2 L&O shows, I must say that this one has made me think the most and always has me gripping right to the end just like the other two. All 3 have become excellent shows and each stands out has forged its own identity. D'Onofrio is so good it will give you chills at times. 5 out of 5.
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