Information resources estimation for accurate distribution-based concept drift detection

Machine learning applications must continually utilize label information from the data stream to detect concept drift and adapt to the dynamic behavior. Due to the computational expensiveness of label information, it is impractical to assume that the data stream is fully labeled. Therefore, much research focusing on semi-supervised concept drift detection has been proposed. Despite the large research effort in the literature, there is a lack of analysis on the information resources required with the achievable concept drift detection accuracy. Hence, this paper aims to answer the unexplored research question of “How many labeled samples are required to detect concept drift accurately?” by proposing an analytical framework to analyze and estimate the information resources required to detect concept drift accurately. Specifically, this paper disintegrates the distribution-based concept drift detection task into a learning task and a dissimilarity measurement task for independent analyses. The analyses results are then correlated to estimate the required number of labels within a set of data samples to detect concept drift accurately. The proximity of the information resources estimation is evaluated empirically, where the results suggest that the estimation is accurate with high amount of information resources provided. Additionally, estimation results of a state-of-the-art method and a benchmark data set are reported to show the applicability of the estimation by proposed analytical framework within benchmarked environments. In general, the estimation from the proposed analytical framework can serve as guidance in designing systems with limited information resources. This paper also hopes to assist in identifying research gaps and inspiring new research ideas regarding the analysis of the amount of information resources required for accurate concept drift detection.     

关于高校体育教学改革的实践探索

本文以宁波高等专科学校的在校生为研究对象，以不同性别的男女学生对参加体育活动的动机类型为研究内容，探究高校体育在贯彻《全民健身计划纲要》中的现实意义和时代价值。     

仿真模拟系统在实习教学中的应用

分析了实地实践教学模式的缺点,设计开发了针对电气类专业的面向WEB电网仿真系统的架构,介绍了其在电力实习教学中的应用,弥补了电力实习教学实地实习的不足。     

科研体制中的权力维度

本文通过分析发展科研能力的必要性,提出高校和基金会制中,按一定规则赋予科研人员或科研组织一定的行政权力是促进科学发展的重要因素,     

Two direct Tustin discretization methods for fractional-order differentiator/integrator

This paper deals with fractional calculus and its approximate discretization. Two direct discretization methods useful in control and digital filtering are presented for discretizing the fractional-order differentiator or integrator. Detailed mathematical formulae and tables are given. An illustrative example is presented to show the practically usefulness of the two proposed discretization schemes. Comparative remarks between the two methods are also given.     

国际大型体育赛事与中国国家形象的时代特征及发展机遇*

我国从近代开始参与国际大型体育赛事,到目前为止已经成为参与、举办国际大型体育赛事较多的国家。在不同的历史阶段,国际大型体育赛事提升国家形象表现出不同的时代特征。当前,一带一路国家战略的积极实施、中国特色大国外交战略的积极推广以及体育强国建设的全面推进,为国际大型体育赛事提升国家形象带来了崭新的发展机遇。     

Drivers of illicit drug use regulation in Australian sport

Most Australian sport stakeholders not only believe that government regulation is a good thing, but also assume that intervention in the drug-use problem will improve sport's social outcomes and operational integrity. In this paper we examine the regulation of illicit drug use in Australian sport through an interrogation of two cases: the Australian Football League and the National Rugby League. Using Pierre Bourdieu's conceptual frames of social field, capital, and habitus, we aim to secure a clearer understanding of the drivers of Australian sport's illicit drug regulations by (1) identifying those stakeholders who set the drug regulation agenda, (2) revealing the values and dispositions that underpin these regulations, and (3) explaining how dominant stakeholders go about sustaining their position and marginalising those stakeholders with opposing drug regulation claims. Our results show that Australian sport's drug-use regulations are driven by a set of values and dispositions that views sport as an instrument for shaping the character of its participants, and drugs as a threat to sport's moral fabric and good standing. The dominant stakeholders, comprising the Commonwealth Government, its sport agencies, and the major governing bodies for sport, imposed these values and dispositions on peripheral stakeholders by designing a drugs-in-sport social field that yielded capital and power to only those participants who endorsed these values and dispositions. Peripheral stakeholders – including players, their agents, and drug-treatment professionals – who mostly shared different values and dispositions, were sidelined, and denied the opportunity of adding to their already limited supplies of capital, power, and policy making influence.     

文化、观念与制度——国家体育软实力理论模型构建与动力机制分析

以文献资料和理论分析为基本方法,在国家体育综合实力的层面提出并深入分析了体育软实力概念。明确了体育观念、体育文化和体育制度等无形的非物质要素是体育软实力的资源基础和载体。以此为基础,构建了包括表层、中层和核心层三个层面的国家体育软实力三维结构模型,并重点对该模型中耦合软实力所包含的文化——观念动力系统、文化——制度动力系统、观念——制度动力系统的动力机制进行了分析,提出了体育软实力建设的对策建议。     

站控终端自动化

将变压器运行数据输入主站计算机系统或变压器运行管理部门的计算机,通过软件处理这些数据,进行分析、比较,对设备的运行状况作出评估,便于发现问题及时处理。同时还可完成台区线损、合格率等考核数据的综合统计等。     

基于PSoC的智能电网远程监控器设计

本文介绍了一种将可编程片上系统（PSoC）和GSM技术引入智能电网的远程监控,实现传统电力技术与新技术相互交叉融合的新型智能电网远程监控器的设计。该监控器由数据采集系统和数据接收系统组成,其中,数据采集系统以高集成度系统PSoC微处理器为主控制平台,由电流传感器采集信号,充分利用PSoC微处理器的片内外资源实现数据的转换和处理,通过GSM网络进行远程数据传输;数据接收系统将接收数据通过串口传送到上位机监控平台,实现对电网的实时监控和故障排查。此实验在技术上实现信息化、自动化、互动化,展现出技术的创新性与可靠性。