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集成kmeans聚类和有监督特征选择的混合式协同过滤推荐
有监督特征选择 协同过滤推荐 k-means聚类
2013/10/24
为了提高协同过滤推荐质量，提出了集成kmeans聚类和有监督特征选择的混合式协同过滤推荐框架和KDICF算法。利用有监督特征选择的方法和技术，找出与待预测项目强相关的项目集，将高维稀疏的用户项目评分数据集转为低维用户项目评分数据集，并运用kmeans聚类，在此基础上寻找近邻用户对目标用户未评分项目进行评分预测。实验结果表明，混合式KDICF算法有着优异的性能。
DETERMINING PULL – OUT DEFORMATIONS OF BONDED METAL ANCHORS EMBEDDED IN CONCRETE BY MEANS OF PHOTOGRAMMETRY
Acquisition Monitoring Engineering Measurement Camera Photogrammetry
2014/4/28
Chemical anchorages are applied in many engineering implementations, particularly strengthening of reinforced concrete structures. During strengthening procedure; chemical anchorages should be tested,...
Means of Knowledge Dissemination: Are the Café Scientifique and the Artistic Performance Equally Effective?
Arts-Based Research Café Scientifique Evaluation Health Research Knowledge Dissemination Performed Research
2013/2/19
An increasing number of health researchers are opting for innovative approaches to communicate research findings. This article compares two methods for disseminating findings to various audiences: the...
Approximation of functions from Lp(w)b by matrix means of their Fourier series
Rate of approximation summability of Fourier series Lipschitz classes
2012/4/16
We formulate some special conditions for the integrable functions and moduli of continuity. We give the results on rate of approximation of such functions by matrix means of their Fourier series, wher...
Low Socioeconomic Status Means Worse Health – But Not for Everyone
Health Perspectives on Psychological Science Poverty Socioeconomic Status Stress
2012/3/22
Poverty is bad for your health. Poor people are much more likely to have heart disease, stroke, and cancer than wealthy people, and have a lower life expectancy, too. Children who grow up poor are mor...
Inactivation of mesophilic bacteria in milk by means of high intensity ultrasound using response surface methodology
high power ultrasound total mesophilic bacteria count D values
2014/2/25
High-intensity ultrasound was used to investigate the inactivation of microorganisms in raw bovine milk. Raw bovine milk with 4% of milk fat was treated with ultrasonic probe that was 12 mm in diamete...
Modelling farmer participation to a revenue insurance scheme by the means of the Positive Mathematical Programming
insurance schemes PMP farmers’ participation risk aversion non-linear mix-integer programming.
2014/2/24
European farmers face an increasing income uncertainty. The debate is growing on the role of the insurance schemes and on the support provided by the CAP in this field. Therefore, there is a need for ...
Continuous care means continuous satisfaction for Queensland mums（图）
maternity care Continuous care means
2014/7/17
Queensland mums who received continuity of carer during their pregnancy, labour and birth have the highest rates of satisfaction according to work by UQ’s Queensland Centre for Mothers & Babies (QCMB)...
Means of Knowledge Dissemination: Are the Café Scientifique and the Artistic Performance Equally Effective?
Arts-Based Research Café Scientifique Evaluation
2013/9/5
An increasing number of health researchers are opting for innovative approaches to communicate research findings. This article compares two methods for disseminating findings to various audiences: the...
An Estimate of Happiness among Students of Tehran University of Medical Sciences:A Means for Policy Making In Management of Health System
Medical Sciences Policy Making Management Health System
2015/9/24
Happiness has several main components including the emotional component- the presence of contentment and affection; the social component- the presence of good social relationships and the ability to r...
Inversion Formulas for the Spherical Means in Constant Curvature Spaces
The spherical mean Radon transform thermoacoustic tomography the method of analytic continuation
2011/9/23
Abstract: The work develops further the theory of the following inversion problem, which plays the central role in the rapidly developing area of thermoacoustic tomography and has intimate connections...
We consider the problem of calibration and the GREG method as suggested and studied in Deville and Sarndal (1992). We show that a GREG type estimator is typically not minimal variance unbiased estimat...
The Study of Invasion Examination Algorithm Based on Improvement Fuzzy C Means
Clustering Data Mining Fuzzy C-Means Clustering Intrusion Detection Mountain Clustering Algorithm
2011/12/16
This paper put forward intrusion detection algorithm based on improved fuzzy C means (FCM) algorithm and execute the anomaly detection on KDDCUP data set, build intrusion detection system based improv...