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基于Co-training的用户属性预测研究
用户属性 Co-training 稀疏自编码器 梯度下降算法
2018/7/4
针对当前基于第三方应用数据的用户属性预测算法较少考虑应用前台实际使用时长问题，提出了“手机应用前台均使用时长”特征，同时采用基于稀疏自编码器和神经网络的Co-training框架，充分利用大量未标注数据，从应用类别和前台均使用时长两个角度进行属性预测。实验进行时，首先使用未标注数据对网络进行初始化，然后采用基于准确率的梯度下降算法对参数进行更新。实验结果表明，本文算法提高了用户属性预测准确率。
Cyclic structures in algebraic (co)homology theories
Cyclic structures algebraic (co)homology theories
2010/11/22
This note discusses the cyclic cohomology of a left Hopf algebroid ($\times_A$-Hopf algebra) with coefficients in a right module-left comodule, defined using a straightforward generalisation of the o...
On the structure of (co-Frobenius) Hopf algebras
the structure co-Frobenius Hopf algebras
2010/11/22
We introduce a new filtration on Hopf algebras, the standard filtration, generalizing the coradical filtration. Its zeroth term, called the Hopf coradical, is the subalgebra generated by the coradica...
Co-universal C*-algebras associated to generalised graphs
Higher rank graph co-universal algebra graph algebra Cuntz- Krieger algebra
2010/11/30
We introduce P-graphs, which are generalisations of directed graphs in which paths have a degree in a semigroup P rather than a length in N. We focus on semigroups P arising as part of a quasi-lattice...
Dual Bass Numbers and Co-Cohen Macaulay Modules
Co-localization Dual Bass numbers Co-Cohen Macaulay modules
2010/12/3
In this paper, we give a characterization of Co-Cohen Macaulay mod-ules by vanishing properties of the Dual Bass numbers of modules. In addition, we show that the co-localization of Co-Cohen Macaulay ...
环同态上的co-*n-模
co-*n-模 同态 n-余表示
2009/11/25
定义了co-*n-模,对于给定的两个同态的环A和R, 找到了左A-co-*n-模〖KG*3〗AU提升到左R-co-*n-模HomA(ARR,AU))的条件。
关于co-H-空间上的映射(Ⅱ)
2007/12/12
对于 co-H-空间 X 和 Y,本文对所有 X 到 Y 的co-H-映射的同伦等价类所成的群$[X,Y]^H$([X,Y]的子群)的秧进行估值,得到如下结论:当X满足一定条件时$\rho[X,Y]^H\leq\sum\limits_{k>0}\beta_K(X)\beta_k(Y)$以及当取同纬映象结构时$\rho[SX,SY]^H=\sum\limits_{k>0}\beta_K(X)\be...
关于CO-H-空间上的映射(Ⅰ)
2007/12/12
对CO-H-空间X和Y,本文得到[X,Y]上的元素为有限阶元素的一个充分条件,并讨论了全体从X到Y的CO-H-映射的同伦等价类所组成的集合$[X,Y]_{co-H}$对[X,Y]上的加法运算封闭的条件.