基于局部社团结构平衡的双模符号网络链路预测研究

随着互联网产业的高速发展,双模符号网络已经成为一类常见的复杂网络,然而针对此 类网络的分析较少。本文在传统非符号网络局部社团理论和符号网络结构平衡理论的基础上,首次提出了双模符号网络下的局部社团理论。这一理论不仅考虑了符号网络中共同邻居的信息,还引入了共同邻居间存在的连接。进一步地,本文推导出符号网络中基于局部社团信息的加权平衡回路增益指数,该指标可以表示双模符号网络中用户节点和产品节点间的符号关系。为了将该指标更好地应用于双模 符号网络链路预测问题,本文提出了加权平衡回路增益分类器算法。实验结果表明,相比其他经典链路预测算法,新算法具有更好的预测能力。     

Deconvolution methods for non-parametric inference in two-level mixed models

Summary.  We develop a general non-parametric approach to the analysis of clustered data via random effects. Assuming only that the link function is known, the regression functions and the distributions of both cluster means and observation errors are treated non-parametrically. Our argument proceeds by viewing the observation error at the cluster mean level as though it were a measurement error in an errors-in-variables problem, and using a deconvolution argument to access the distribution of the cluster mean. A Fourier deconvolution approach could be used if the distribution of the error-in-variables were known. In practice it is unknown, of course, but it can be estimated from repeated measurements, and in this way deconvolution can be achieved in an approximate sense. This argument might be interpreted as implying that large numbers of replicates are necessary for each cluster mean distribution, but that is not so; we avoid this requirement by incorporating statistical smoothing over values of nearby explanatory variables. Empirical rules are developed for the choice of smoothing parameter. Numerical simulations, and an application to real data, demonstrate small sample performance for this package of methodology. We also develop theory establishing statistical consistency.     

心理健康教育与高校德育契合之探讨

探讨高校心理健康教育与高校德育之契合点,是当前高校面临的一个重要课题。高校德育教师作为当前大学生心理健康教育的主力军,要努力寻求心理健康教育与德育之契合点,渗透心理健康教育于高校德育教学之中;学生辅导员、担任其它课程的各科教师等也要善于搞好高校心理健康教育与高校德育之契合,寓心理健康教育于高校教学和德育工作之中。     

Generalized Weibull Linear Models

For the first time, a new class of generalized Weibull linear models is introduced to be competitive to the well-known generalized (gamma and inverse Gaussian) linear models which are adequate for the analysis of positive continuous data. The proposed models have a constant coefficient of variation for all observations similar to the gamma models and may be suitable for a wide range of practical applications in various fields such as biology, medicine, engineering, and economics, among others. We derive a joint iterative algorithm for estimating the mean and dispersion parameters. We obtain closed form expressions in matrix notation for the second-order biases of the maximum likelihood estimates of the model parameters and define bias corrected estimates. The corrected estimates are easily obtained as vectors of regression coefficients in suitable weighted linear regressions. The practical use of the new class of models is illustrated in one application to a lung cancer data set.     

Multilevel modelling of refusal and non-contact in household surveys: evidence from six UK Government surveys

Summary.  We analyse household unit non-response in six major UK Government surveys by using a multilevel multinomial modelling approach. The models are guided by current conceptual frameworks and theories of survey participation. One key feature of the analysis is the investigation of the extent to which effects of household characteristics are survey specific. The analysis is based on the 2001 UK Census Link Study, which is a unique source of data containing an unusually rich set of auxiliary variables. The study contains the response outcome of six surveys, linked to census data and interviewer observations for both respondents and non-respondents.     

评析邓小平领导的1975年整顿

邓小平领导的1975年整顿是党纠正“左”倾错误的重要组成部分;它上承党的八大路线的恢复和发展,下启党的十一届三中全会制定的新路线;它是拨乱反正的先导、改革的试验;它作为邓小平理论的孕育,为我国后来走出一条建设中国特色社会主义道路提供了思想和理论来源。     

《蒙古语谚语数据库》的建立与实现

谚语是人们对自然现象,社会现象长期观察的艺术总结;是用有节奏的语言,完整地表达广大劳动人民的斗争经验和思想感情,富有教育意义的民间语言。目前在谚语数据库中收录了1800个蒙古语谚语,并设计了一套管理系统。谚语供人们学习母语中的丰富词语和典范的表达形式。本文主要介绍了该系统所涉及的工作及意义,设计宗旨及其具体实践的过程。     

中文分词连写的问题与对策

文章通过质疑和答疑表述了以下看法:(1)就日常交际来说,西文需要分词连写而中文则未必,因为后者可以借助汉字特征辨识词界;(2)现在越来越多的人赞成实行中文分词连写,主要因为这有助于中文信息处理;(3)实行中文分词连写有利有弊,最大弊端是它给书写增添了负担;而开发推广中文词式书写编辑软件,不失为化解矛盾的可行办法。     

Together Protecting Our Children: Reflections on a South African/English University Higher Education Link Programme

This article explores some of the issues underpinning the development of a British Council funded Higher Education Link between the University of the Western Cape, South Africa and University College Chichester, England. The Link began in 1999 and finished in 2005. The focus of the Link was child protection. The initial emphasis was on developing national multidisciplinary child protection training programmes within South Africa. Latterly this has expanded to encompass the broader concept of child welfare, particularly children's well being and children's participation in both South Africa and England. For both partners the process has been challenging and transforming. The article reflects on the initial objectives of the Link programme and analyses lessons learned both professionally and personally for the South African and English authors.