Asymptotic Theory of Outlier Detection Algorithms for Linear Time Series Regression Models

Outlier detection algorithms are intimately connected with robust statistics that down‐weight some observations to zero. We define a number of outlier detection algorithms related to the Huber‐skip and least trimmed squares estimators, including the one‐step Huber‐skip estimator and the forward search. Next, we review a recently developed asymptotic theory of these. Finally, we analyse the gauge, the fraction of wrongly detected outliers, for a number of outlier detection algorithms and establish an asymptotic normal and a Poisson theory for the gauge.     

Finding your way into employment against all odds? Successful job search of refugees in Austria

Labour market entry poses enormous challenges for recently arrived refugees, ranging from language barriers, devaluation of human capital, unfamiliarity with customs of the job search process to outright discrimination. How can refugees overcome these challenges and quickly enter gainful employment? In this paper, we draw on interviews with 26 male and female refugees from Syria, Afghanistan, Iraq and Iran, conducted in 2017 and 2018, who came to Austria in 2015 and 2014 and who have successfully entered employment. We depict refugees’ own perspectives on and strategies for fast job entry and integration. Personal agency and a proactive approach of seeking and seizing opportunities are key for overcoming initial barriers and entering upon positive integration pathways. At the same time, refugees’ personal agency is essential for establishing social ties to the host society, which also play a crucial role in early labour market integration. Finally, institutions of the Austrian labour market (the ‘apprenticeship’-system) interact with refugees’ agency in most intricate ways, both setting up nearly insurmountable barriers but also providing specific opportunities for refugees.     

支持多关键字的P2P搜索研究

传统的P2P系统是基于单特征词搜索的，且不支持语义，存在一定的局限性。提出了可变长数组模型，解决了P2P系统中多特征词搜索的问题；标识符空间的分割，使相同领域的文档在邻近的节点聚集，提高了搜索速度；本体技术的应用，使P2P系统能够理解搜索请求，有利于查全率的提高。     

WB-1型长效汽车防冻液的研制

研制了WB-1型汽车发动机防冻液,讨论了缓蚀剂的选择与复配关系及稳定剂和添加剂的选用,确定了乙二醇型防冻液的组成,并对防冻液的各项性能进行了测试.结果表明,WB-1型防冻液各项技术指标均达到美国ASTM D3306-94标准.     

Web挖掘技术在搜索引擎中的应用与实现

介绍W eb挖掘技术及搜索引擎相关知识,并通过PageRank-pro W eb结构挖掘器和页面解析器中文分词两个实现来描述W eb挖掘技术在搜索引擎中的实现过程。     

邓小平理论研究的新成果——读《时代的丰碑——邓小平理论产生的思想渊源与历史条件》

《时代的丰碑———邓小平理论产生的思想渊源与历史条件》一书 ,选题新颖 ,视角独特 ,内容丰富 ,可读性强。其研究方法、框架体系的建构都有独到之处。     

中国农民工工资走势:1979-2010

中国农民工的工作参与和市场地位一直是备受关注的话题。以个体工作搜寻角度切入,利用2013年和2014年两期\     

越库中心选址模型与启发式算法

越库配送网络具有高运作效率、低库存等特性,同时对时间要求较高,故研究带时间窗口约束的越库选址路径问题。采用时间窗模糊化处理方法定义客户满意度函数,在能力和载重等约束下,建立越库选址路径问题（CDLRP）的多目标规划模型,通过合理选择越库中心并安排配送路径从而达到降低成本、提高客户满意度和提高配送效率三个目标。针对此多目标问题,设计了嵌套灰关联分析的多目标禁忌搜索算法寻求较好的Pareto最优前沿,最后通过算例仿真验证了优化模型和求解算法的可行和有效性。     

A genetic algorithm tutorial

This tutorial covers the canonical genetic algorithm as well as more experimental forms of genetic algorithms, including parallel island models and parallel cellular genetic algorithms. The tutorial also illustrates genetic search by hyperplane sampling. The theoretical foundations of genetic algorithms are reviewed, include the schema theorem as well as recently developed exact models of the canonical genetic algorithm.     

带湖与稼轩遗址考探

本文从历史资料、地理方位、地势水系等方面,并结合实地考察、民间走访,论证了带湖与稼轩遗址的具体位置。