The matrix factorization algorithms such as the matrix factorization technique (MF), singular value decomposition (SVD) and the probability matrix factorization (PMF) and so on, are summarized and compared. Based on the above research work, a kind of improved probability matrix factorization algorithm called MPMF is proposed in this paper. MPMF determines the optimal value of dimension D of both the user feature vector and the item feature vector through experiments. The complexity of the algorithm scales linearly with the number of observations, which can be applied to massive data and has very good scalability. Experimental results show that MPMF can not only achieve higher recommendation accuracy, but also improve the efficiency of the algorithm in sparse and unbalanced data sets compared with other related algorithms.
목차
Abstract 1. Introduction 2. Related Work 3. The Definition of Fundamental Matrix Factorization Model 4. The Improved Probability Matrix Factorization Algorithm 4.1. The Traditional Recommendation Algorithm model-PMF 4.2. Improved Probability Matrix Factorization Algorithm—MPMF 5. Dataset and Metrics 5.1. Experiment Environment 5.2. Dataset 5.3. Metrics 6. Experimental Analysis 6.1. Experiment Scheme 6.2. The Impacts of Dimension D on Running Time of PMF 6.3. Comparison of RMSE in Training Set and Testing Set 6.4. Impacts of Dimension D on Recommendation Precision 6.5. Comparison of Recommendation Accuracy 6.6. Analysis of Time Complexity of MPMF 7. Conclusion Acknowledgements References
Zhijun Zhang [ School of Information Science and Engineering, Shandong Normal University, Shandong Provincial Key Laboratory for Novel Distributed Computer Software, School of Computer Science and Technology, Shandong Jianzhu University, Jinan,Shandong, 250101, China ]
Hong Liu [ School of Information Science and Engineering, Shandong Normal University, Shandong Provincial Key Laboratory for Novel Distributed Computer Software Jinan, Shandong, 250014, China ]
보안공학연구지원센터(IJCA) [Science & Engineering Research Support Center, Republic of Korea(IJCA)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Control and Automation
간기
월간
pISSN
2005-4297
수록기간
2008~2016
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Control and Automation Vol.7 No.8