搜索结果: 1-15 共查到“数学 CO”相关记录32条 . 查询时间(0.27 秒)
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。
We develop methods for studying transition operators on metric
spaces that are invariant under a co-compact group which acts properly.
A basic requirement is a decomposition of such operators with
...
This is a survey on analysis on non-compact co-compact Riemannian
covers and how it relates to random walks on finitely generated groups. The
focus is on the long time behavior of the heat kernel an...
Abstract: We consider sequences of absolute and relative homology and cohomology groups that arise naturally for a filtered cell complex. We establish algebraic relationships between their persistence...
Random Walk on a Co-Compact Fuchsian Group: Behavior of the Green's Function at the Spectral Radius
hyperbolic group surface group randomwalk Green’s function Gromov boundary Martin boundary Ruelle operator theorem
2011/9/22
Abstract: It is proved that the Green's function of a symmetric finite range random walk on a co-compact Fuchsian group decays exponentially in distance at the radius of convergence R. It is also show...
Co--calibrated $G_2$ structure from cuspidal cubics
cuspidal cubics Differential Geometry Algebraic Geometry
2011/9/6
Abstract: We establish a twistor correspondence between a cuspidal cubic curve in a complex projective plane, and a co-calibrated homogeneous $G_2$ structure on the seven--dimensional parameter space ...
Equidistribution of Eisenstein series on convex co-compact hyperbolic manifolds
Equidistribution of Eisenstein series convex co-compact hyperbolic manifolds Spectral Theory
2011/9/5
Abstract: For convex co-compact hyperbolic manifolds $\Gamma\backslash \mathbb{H}^{n+1}$ for which the dimension of the limit set satisfies $\delta_\Gamma< n/2$, we show that the high-frequency Eisens...
Topos co-evanescents et generalisations
Topos co-evanescents generalisations Algebraic Geometry
2011/9/5
Abstract: This article is devoted to studying a topos introduced by Faltings for the purpose of $p$-adic Hodge theory. We present a new approach based on a generalisation of Deligne's co-vanishing top...
Co-quasi-invariant spaces for finite reflexion groups
Low degree components Colored quasi-symmetric polynomials
2011/8/24
安徽理工大学共建数据
Abstract: We study, in a global uniform manner, the quotient of the ring of polynomials in l sets of n variables, by the ideal generated by diagonal quasi-invariant polynomials for general permutation...
Abstract: In this paper, we develop a diamond graph theory and apply the theory to the (co)homology of the Lie algebra generated by positive systems of the classical semi-simple Lie algebras over the ...
On Co-ordinated Quasi-Convex Functions
co-ordinates quasi-convex Wright-quasi-convex Jensen-quasiconvex
2011/2/21
In this paper, we give some definitions on quasi-convex functions and we prove inequalities contain J-quasi-convex and W-quasi-convex functions.We give also some inclusions.
Boundary values in range spaces of co-analytic truncated Toeplitz operators
Continuation Model spaces Toeplitz operators Truncated Toeplitz operators
2011/2/22
Functions in backward shift invariant subspaces have nice analytic continuation properties outside the spectrum of the inner function defining the space. Inside the spectrum of the inner function.
Behavior of Quillen (co)homology with respect to adjunctions
Quillen, homology cohomology adjunction simplicial model structure comparison
2010/12/13
This paper aims to answer the following question: Given an adjunction between two categories, how is Quillen (co)homology in one category related to that in the other?We identify the induced compariso...
Decompositions of looped co-H-spaces and applications
Decompositions of looped co-H-spaces and applications
2010/11/11
We prove two homotopy decomposition theorems for the loops on co-H-spaces, including a generalization of the Hilton-Milnor Theorem. These are applied to problems arising in algebra, representation the...