Research of Sparsity and Cold Start Problem in Collaborative Filtering;
协同过滤系统的稀疏性与冷启动问题研究
Owing to its sparsity of structure,new matrix greatly simplifies the projection operation during images reconstruction,which greatly improving the speed of reconstruction.
该矩阵由于其构成的非常稀疏性大大简化了图像重建过程中的投影计算,从而提高重建速度。
Attributing to the merit of the L_1 norm,a good sparsity is achieved by the SHSSVM.
由于L1范数具有诱导稀疏性的本质,使得稀疏隐空间支持向量机获得了良好的稀疏性。
Sparseness Analysis of Radar Echoes and its Application in Ship and Chaff Discrimination
雷达回波稀疏性分析及其在舰船与箔条云鉴别中的应用
Underdetermined blind speech separation of sparseness
基于稀疏性的欠定语音盲分离方法研究
Then,it is expatiated that owing to their sparseness,new kinds of matrices greatly simplify the projection operation during image reconstruct.
同时,进一步说明由于这两种矩阵构成元素的稀疏性可以简化图像重建过程中的投影计算,从而提高重建速度。
At the same time,the result of the experiment demonstrates that the matrix obtained by using the orthogonal Daubechies wavelet packets to decompose is more sparse.
利用小波—Galerkin积分法,第一次给出了用区间上的小波包解第二类积分方程的算法实例,并与小波解积分方程得到的结果进行比较,实验结果表明条件数更小,稳定性更好;同时讨论了解法中方程组的系数矩阵的稀疏性,小波包得到的矩阵更稀疏。
A pruning algorithm is proposed to enhance computational efficiency and sparse ability.
通过剪枝算法提高其快速性和稀疏性,并用遗传算法搜索向量机的参数,避免了参数选择的盲目性,获得了最优的参数,提高了预测能力。
Storage and computation efficiency and computation efficiency of the normal form method are analyzed by studying the sparse characteristics of dynamic mathematic models and normal form algorithm models of power systems.
通过分析电力系统动态数学模型和正规形算法模型的稀疏特性,探讨了正规形算法的存储效率和计算效率问题。
The authors investigated the relations between the traditional window functions and the spectrum sparse characteristics after DFT,and put forward two sparse characteristics′ criterions based on the width of leakage spectrum frequency band and the number of effective spectrum lines.
由于信号的稀疏特性有效地用于盲信号分离中,所以稀疏特性受到普遍的关注。
A robust beamforming approach with applications to flexible sparse arrays;
柔性稀疏阵的稳健波束形成
Effective hybrid collaborative filtering algorithm for alleviating data sparsity
一种有效缓解数据稀疏性的混合协同过滤算法
In order to solve the technological problems in the data sparsity and real time recommendation,a customer cooperation recommendation mechanism based on the interest degree vector model was proposed with integrating the traditional customer cooperation filtering technology.
针对数据稀疏性与推荐实时性的技术难题,在结合传统用户合作过滤推荐的基础上,提出了基于兴趣度向量模型的用户合作推荐机制。
An Extremal Sparsity Property of the Jordan Canonical Form;
Jordan标准形的一个极端稀疏性质
Research of Sparsity and Cold Start Problem in Collaborative Filtering
协同过滤系统的稀疏性与冷启动问题研究
Research of Data Sparsity Problem in Recommendation Systems Based on Collaborative Filtering
基于协同过滤推荐系统的数据稀疏性问题研究
Effective hybrid collaborative filtering algorithm for alleviating data sparsity
一种有效缓解数据稀疏性的混合协同过滤算法
sparse unsymmetric linear equation
稀疏非对称线性方程
INERTIA PARTICLE PREFERENTIAL DISPERSION IN DILUTE TWO-PHASE TURBULENT FLOWS
稀疏两相湍流的惯性颗粒倾向性弥散
Ultrastructure of epithelial cells showed a decrease of intermediate filaments, accumulation of vimentin in bundle and organelle degeneration.
其纤维分布稀疏 ,聚集成束 ,细胞器变性 ;
Nested Iterative Methods for Large and Sparse Linear Systems;
大型稀疏线性方程组的嵌套迭代算法
Asymptotic Stability of Rarefaction Wave for Generalized Burgers Equation;
广义Burgers方程稀疏波的渐近稳定性
Recoverability Analysis of Blind Source Separation Based on Sparse Representation;
盲稀疏源信号分离算法的恢复性研究
Krylov Subspace Methods for Large Sparse Systems of Equations
大型稀疏线性方程组的Krylov子空间方法
Imaging Quality of Double-Circle Sparse Aperture Array Configuration
稀疏孔径双圆周阵列的成像性能研究
Study on the Structure and Dilute Solution Properties of Hydrophobically Associating Water-Soluble Polymers;
疏水缔合水溶性聚合物结构与稀溶液性能研究
FAST SPARSE DECOMPOSITION OF IMAGE BASED ON BOTH ANISOTROPIC REFINEMENT OF ATOM AND ITS SUPPORT PROPERTY
各向异性原子及其支撑性的快速图像稀疏分解
Chronically sick pigs often suffer from a partial alopecia characterized by a thinning of the bristles.
慢性病猪通常有局部脱毛，特点是鬃毛变稀疏。
AN UNIVERSAL ALGORITHM FOR SOLVING LARGE SPARSE LINEAR ALGEBRAIC EQUATIONS
解大型稀疏线性代数方程组的一种通用算法
THE GRADIENT PROJECTION METHOD FOR LARGE SPARSE PROBLEM;
带有线性约束大规模稀疏问题的梯度投影算法
The Research on Dynamic and Abstract Clustering Method of High Dimensional Sparse Data;
高属性维稀疏数据动态抽象聚类方法研究