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Enhancing rating prediction for recommendation by metric learning with gray relational analysis
Grey Systems: Theory and Application, 2021PurposeThe purpose of the paper is to improve the rating prediction accuracy in recommender systems (RSs) by metric learning (ML) method. The similarity metric of user and item is calculated with gray relational analysis.Design/methodology/approachFirst, the potential features of users and items are captured by exploiting ML, such that the rating ...
Jiangmei Chen, Wende Zhang, Qishan Zhang
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Study of University Informatization Using Gray Relation Analysis
2010 International Conference on E-Business and E-Government, 2010University informatization is an important aspect of modern universities. University informatization is affected by many factors. We analyze influence factors of university informatization, and provide effective decision-making reference for improving informatization.
Limin Zhang, Huang Yu
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Application of Gray Relational Analysis for Course Evaluation
2010 International Conference on Intelligent Computation Technology and Automation, 2010Curriculum evaluation is an important part of educational assessment. Gray relational analysis method can be applied to course evaluation in this paper. Grey correlation degree reflects the distance between a selected scheme and the ideal solution. The method was applied to actual course assessment situation of Capital Normal University Information ...
Chunna Zhao +5 more
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Gray Relational Analysis for Recognizing Fabric Defects
Textile Research Journal, 2003A fabric defect image is characterized by its prirmitive properties as well as the spatial relationships between them. A gray level co-occurrence can be specified in a matrix of the relative frequencies with which two neighboring pixels separated by a distance occur on the image.
Chung-Feng Jeffrey Kuo, Te-Li Su
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Novel FRFT Watermarking Algorithm Based on the Gray Relational Analysis
2012 Eighth International Conference on Intelligent Information Hiding and Multimedia Signal Processing, 2012A novel binary watermarking algorithm has been proposed based on the Fractional Fourier Transform (FRFT) and the digital watermarking techniques. The 0, 1 sequence are corresponded to two different random sequences here by considering the strong practicability of the binary watermarks and the strong robustness of the sequence watermarks.
Chang-Yong Liu +2 more
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Gray relational grade analysis in population and environment of Tianjin
2008 27th Chinese Control Conference, 2008Based on population and environment statistical data covering 2002 to 2005 of Tianjin, according to relativity analysis method in gray systems theory, the paper calculated the inter-relevancy grade of the factors of Tianjin' population and environment by quantitative study, meanwhile, summarized their relevancy relationship and analyzed the cause ...
null Wang Shoubin +2 more
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Journal of Medical Systems, 2015
The aim of this study was to determine the efficiency of surgical services offered by a public hospital, to rank efficient services and to determine important factors on efficiency of services. DEA (to determine efficiency of services) and GRA (to rank efficient services and ranking of important variables in efficiency) were used in this study.
KÖSE, TUNÇ +2 more
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The aim of this study was to determine the efficiency of surgical services offered by a public hospital, to rank efficient services and to determine important factors on efficiency of services. DEA (to determine efficiency of services) and GRA (to rank efficient services and ranking of important variables in efficiency) were used in this study.
KÖSE, TUNÇ +2 more
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Optimization of mechanical properties of green composites by gray relational analysis
Materials Today: Proceedings, 2020Abstract As polymers matrix composites are being utilized in many applications, it is very important to enhance the mechanical properties of such composites by deriving the multiple response based different input parameter combination. In the present study, an effort has been made to fabricate a banana fiber and banana-coir fiber reinforced hybrid ...
Vishal J. Pandya, Pravin P. Rathod
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