基于贝叶斯正则化BP神经网络的上市公司信用评价研究

在神经网络训练中引入贝叶斯正则化以提高模型的推广能力。通过与未使用提高推广能力方法和使用提前停止法两种情况进行比较,表明基于贝叶斯正则化的BP神经网络模型在上市公司信用评价中的推广能力有显著的提高。     

Accessing and Browsing Information and Communication,by Ronald E. Rice,Maureen McCreadie,and Shan-Ju L. Chang. Cambridge,MA: MIT Press, 2001. xiii + 357 pp., $45.00. ISBN 0-262-18214-9.

Critics have argued that information and communication technologies (ICTs) disconnect people from their social networks and reduce public participation. Research in support of this perspective has been biased by two assumptions. The first is a tendency to privilege the Internet as a social system removed from the other ways people communicate. The second is a tendency to favor broadly supportive strong social ties. Survey and ethnographic observations from Netville, a 2-year community networking experiment, suggest that weak, not strong ties experience growth as a result of ICTs. By examining a unique and underexplored stage in the life cycle of a community networking project, the end of a networking trial, this article demonstrates how ICTs facilitate community participation and collective action (a) by creating large, dense networks of relatively weak social ties and (b) through the use of ICTs as an organizing tool.     

基于WLAN的图书馆读者行为采集分析平台框架研究

[目的/意义]读者行为分析是图书馆改进服务、提升管理水平的基础性工作。目前在馆读者越来越多地通过馆内WLAN来访问图书馆资源和服务,因此对这部分读者的行为进行分析变得越来越重要。而当前图书馆界十分缺乏对馆内通过WLAN上网读者的行为进行采集分析的工具和手段。[方法/过程]设计一种基于WLAN网络的图书馆读者行为采集分析平台框架,并提出平台各关键技术点及其解决方案。[结果/结论]该平台框架及技术解决方案可为相关平台系统的开发和使用提供参考,但是在隐私保护和安全性方面还需要在应用中进一步调整和优化。     

基于神经网络的监控数据智能处理方法

针对船用系泊缆绳安全智能报警系统中的表格试验数据，提出了应用神经网络技术的智能数据处理方法。该方法克服了传统数据处理方法一般难以找到合适的逼近函数、处理过程复杂的弱点，避免了传统数据处理方法上的不便性和局限性，实现了表格数据非线性输入输出的映射。通过样本学习而建立的网络可以提高数据的取用效率，具有很大的灵活性和适用性。这是一种很有应用价值的数据处理方法。     

模糊神经网络在故障诊断中的模型与应用

对一种基于模糊神经网络的故障诊断方法进行了研究，探讨了模糊神经网络诊断模型和模糊算子选择。以柴油机示功图作为特征信号，构造了船舶主机故障诊断仿真系统，并给出了系统知识学习和模糊推理结果。     

稼轩词之海洋情结

稼轩词的本质特征更多的是"悲壮沉郁",辛弃疾作为时代的批判者,其个性生命的悲哀及其唤醒生命意识的词作,具有极高的审美价值,其间透露出的海洋情结,则更具有强烈的震撼力量。表现为:欲海洋经略,图一统之志;举沧海桑田,叹请缨无路;赞海洋浩翰,明报国之心;颂海洋盛景,抒归隐之情。     

Governing software: networks,databases and algorithmic power in the digital governance of public education

This article examines the emergence of ‘digital governance’ in public education in England. Drawing on and combining concepts from software studies, policy and political studies, it identifies some specific approaches to digital governance facilitated by network-based communications and database-driven information processing software that are being discursively promoted in education by cross-sectoral intermediary organizations. Such intermediaries, including National Endowment for Science, Technology and the Arts, Demos, the Innovation Unit, the Education Foundation and the Nominet Trust, are increasingly seeking to participate in new digitally mediated forms of educational governance. Through their promotion of network-based pedagogies and database-driven analytics software, these organizations are seeking to delegate educational decision-making to socio-algorithmic forms of power that have the capacity to predict, govern and activate learners' capacities and subjectivities.     

斧子口水库坝型比选研究

通过对斧子口水利枢纽坝址地形、地质条件、工程投资、环境影响、施工工期等方面进行综合比较,以及碾压混凝土重力坝、混凝土面板堆石坝、碾压混凝土拱坝三种坝型方案进行对比分析后,推荐斧子口水利枢纽为碾压混凝土重力坝坝型。     

How can science connect with and contribute to conservation? Recommendations and reflections

This paper reports the conclusions and recommendations of the working group that synthesized the discussions on ‘How can science connect with and be of greater benefit to conservation practice?’ during the ICCROM Forum on Conservation Science. The author reflects on these findings from her own perspective and experiences, and places them in the context of two major shifts in heritage research: the first, a shift in focus from conserving materials to managing meaning. The second, a shift in organizational structures from single, centrally funded heritage institutions towards diffuse networks which include new players who have no direct responsibility towards heritage. Both shifts are taking place in an environment of decreased funding and increased accountability to society. Science and conservation connect and contribute to each other most effectively if they together contribute to the societal benefits of heritage. In this regard, heritage science strategies can stimulate collaboration, and direct science and conservation towards innovative, applicable outcomes. Moreover, they can promote a transdisciplinary approach which connects social, economic and business sciences and stakeholders. They should also ensure the creation of sustainable nodes for consolidating knowledge within these dynamic networks.     

“We bleed for female empowerment”: mediated ethics,commodity feminism,and the contradictions of feminist politics

Discourses of female empowerment are increasingly prominent within ethical capitalism, which seeks to remedy global crises with private-sector solutions and their commodities. This article examines the intersecting manifestations of female empowerment, commodity activism, and ethical capitalism with case studies on Born Free Africa, a fashion collection combatting mother-to-child HIV transmission, and THINX, which sells “period-proof” panties. Each company articulates empowerment through a binary between the Western feminist savior and “in-need” woman of the global south. This article argues that this iteration of empowerment not only reinforces logics of neo-colonial capitalism, but also masks disciplinary regimes for individual feminine subjects.