Evolutionary collective behavior decomposition model for time series data mining

In this research, we propose a novel framework referred to as collective game behavior decomposition where complex collective behavior is assumed to be generated by aggregation of several groups of agents following different strategies and complexity emerges from collaboration and competition of individuals. The strategy of an agent is modeled by certain simple game theory models with limited information. Genetic algorithms are used to obtain the optimal collective behavior decomposition based on history data. The trained model can be used for collective behavior prediction. For modeling individual behavior, two simple games, the minority game and mixed game are investigated in experiments on the real-world stock prices and foreign-exchange rate. Experimental results are presented to show the effectiveness of the new proposed model.     

Effect of sodium doping on graded Cu(In1−xGax)Se2 thin films prepared by chemical spray pyrolysis

In the present work we have studied the effect of Na on the properties of graded Cu(In_1−xGa_x)Se₂ (CIGS) layer. Graded CIGS structures were prepared by chemical spray pyrolysis at a substrate temperature of 350 °C on soda lime glass. Sodium chloride is used as a dopant along with metal (Cu/In/Ga) chlorides and n, n-dimethyl selenourea precursors. The addition of Na exhibited better crystallinity with chalcopyrite phase and an improvement in preferential orientation along the (112) plane. Energy dispersive analysis of X-rays (line/point mapping) revealed a graded nature of the film and percentage incorporation of Na (0.86 at%). Raman studies showed that the film without sodium doping consists of mixed phase of chalcopyrite and CuAu ordering. Influence of sodium showed a remarkable decrease in electrical resistivity (0.49–0.087 Ω cm) as well as an increase in carrier concentration (3.0×10¹⁸–2.5×10¹⁹ cm⁻³) compared to the un-doped films. As carrier concentration increased after sodium doping, the band gap shifted from 1.32 eV to 1.20 eV. Activation energies for un-doped and Na doped films from modified Arrhenius plot were calculated to be 0.49 eV and 0.20 eV, respectively. Extremely short carrier lifetimes in the CIGS thin films were measured by a novel, non-destructive, noncontact method (transmission modulated photoconductive decay). Minority carrier lifetimes of graded CIGS layers without and with external Na doping are found to be 3.0 and 5.6 ns, respectively.     

面向小语种机器翻译的平行语料库构建方法

神经机器翻译模型的训练效果在很大程度上取决于平行语料库的规模和质量。除了一些常见语言外,汉语与小语种间高质量平行语料库的建设一直处于滞后状态。现有小语种平行语料库多采用自动句子对齐技术利用网络资源构建而成,在文本质量和领域等方面有诸多局限性。采用人工翻译的方式可以构建高质量平行语料库,但是缺乏相关经验和方法。文中从机器翻译实践者和研究者角度出发,介绍了经济高效的人工构建小语种平行语料库的工作,包括其总体目标、实施过程、流程细节和最后结果。在构建过程中尝试并积累了各种经验,形成了小语种到汉语平行语料库构建方法、建议的总结。最终,成功构建了波斯语到汉语、印地语到汉语、印度尼西亚语到汉语各50万条高质量平行语料。实验结果表明,所构建的平行语料库有较好的质量,提高了小语种神经机器翻译模型的训练效果。     

冀南山区传统村落主街界面形态量化研究

针对传统村落保护与更新过程中 其街巷界面形态出现同质化、雷同化、商品 化等问题,基于冀南山区内与等高线平行、垂 直、斜交三种类型的传统村落主街界面形态 数据,采用分形理论、数理统计学等相关分 析方法,量化描述了冀南山区传统村落主街 底界面与侧界面的形态规律及其组构方式, 总结出与一定量化参数区间所对应的传统村 落主街界面形态特征。     

Beyond the Multi-ethnic Metropolis: Minority Ethnic Housing Experiences in Small Town England

Evidence of racialised inequalities in housing in England has been accumulating for more than 40 years. While recognising the strengths and importance of this evidence base, this paper identifies a fundamental gap in current understanding of minority ethnic housing situations and experiences; the failure of analysis to acknowledge and understand the extent to which situations and experiences vary between places. Few studies have been sensitive to the particulars of minority ethnic housing experiences in different locations and those that have tend to have focused on the same small number of major towns and cities. Small town and rural experiences have remained largely invisible, despite increasing numbers of minority ethnic households living beyond the multi-ethnic metropolis. This paper recognises and responds to this situation by venturing beyond the current evidence base to explore the neglected housing experiences of minority ethnic people in small town England. Two key points are asserted. First, that minority ethnic people living in small towns encounter many of the same housing inequalities as their counterparts in metropolitan England. Second, that small town England presents a series of unique challenges demanding distinct responses and resulting in experiences very different to those recognised within the existing evidence base.     

新疆维吾尔族伊斯兰建筑文化透析--库车加满大寺测绘实录

通过库车加满大寺的测绘实录，对维吾尔族伊斯兰宗教建筑的外在形态作了详尽的阐述，并进一步剖析建筑形态与其所处地域独特的自然环境、人文背景之间的内在联系，从地域的文化交流、游牧民族的文化积淀、宗教信仰的时代变迁三方面揭示维吾尔族建筑文化的深刻内涵。     

"城中村"土地经营的探讨——以湖北省武汉市为例

“城中村”具有丰富的存量土地资源,内涵挖潜“城中村”土地．能有效地缓解城市化进程中出现的用地矛盾,实现其土地资产价值．同时,政策保障、科学规划与市场引导也是其改造的关键动力武汉市采取政策指导、引入社会力量、均衡利益分配等措施．经营“城中村”土地资源．取得了良好的效果。     

村庄布点规划中的文化反思——以嘉兴凤桥镇村庄布点规划为例

目前,许多村镇规划存在着将问题简单化、"一刀切"的现象,致使一些村庄布点规划出现了对"乡村文化"的忽视乃至破坏等问题.凤桥镇村庄布点规划中主要的乡村文化保护措施有:在整个镇域范围内明确需要保护的水乡文化载体,并围绕村落传统布局模式的保留和水乡特色的发掘,推进村庄的新建、改建和拆建工作,保持部分原生态聚落以延续地区传统并对有重要历史价值的村庄制定特殊的政策.     

面向不均衡数据集的过抽样算法

合成少数类过抽样技术（SMOTE）中的噪声样本可能参与合成新样本，所以难以保证新样本的合理性。针对这个问题，结合聚类算法提出了改进算法CSMOTE。该算法抛弃了SMOTE在最近邻间线性插值的思想，使用少数类的簇心与其对应簇中的样本进行线性插值合成新样本，并且对参与合成的样本进行了筛选，降低了噪声样本参与合成的可能。在六个实际数据集上，将CSMOTE算法与四个SMOTE的改进算法以及两种欠抽样算法进行了多次的对比实验，CSMOTE算法在所有数据集上均获得了最高的AUC值。实验结果表明，CSMOTE算法具有更高的分类性能，可以有效解决数据集中样本分布不均衡的问题。     

重庆地区村镇住宅现状调研与分析

随着节能口号在全球范围的打响,节能问题越来越被人们重视。但人们对于节能的研究针对大城市的较多,对于村镇住宅的节能研究屈指可数。在中国农村人口占全国人口80%以上的基本国情下,村镇地区正在以迅猛之势发展,如果对村镇住宅的节能研究跟不上村镇住宅增加的速度将会在村镇地区存在大批不节能建筑,成为实现全社会节能的软肋。因此,立足于我国的基本国情,结合重庆"大城市带大农村"的典型二元结构,对重庆地区村镇住宅围护结构进行了实地调研和现场测试,得到了重庆地区村镇住宅现有围护结构的现状,并结合现场测试数据进行分析得出重庆地区现有村镇住宅的室内环境状况非常恶劣的现状,反映了加强对村镇住宅节能研究的必要性和迫切性。