信息构建(Information Architecture,IA)探析

本文以Internet发展为背景 ,分前网络时期和网络时期两个阶段对IA进行了考察 ,提出了狭义IA(书本IA、网站IA)和广义IA ,并对其含义、内容和作用进行了探讨和论述。     

An immune-tabu hybrid algorithm for thermal unit commitment of electric power systems

This paper presents a new method based on an immune-tabu hybrid algorithm to solve the thermal unit commitment （TUC） problem in power plant optimization. The mathematical model of the TUC problem is established by analyzing the generating units in modem power plants. A novel immune-tabu hybrid algorithm is proposed to solve this complex problem. In the algorithm, the objective function of the TUC problem is considered as an antigen and the solutions are considered as antibodies, which are determined by the affinity computation. The code length of an antibody is shortened by encoding the continuous operating time, and the optimum searching speed is improved. Each feasible individual in the immune algorithm （IA） is used as the initial solution of the tabu search （TS） algorithm after certain generations of IA iteration. As examples, the proposed method has been applied to several thermal unit systems for a period of 24 h. The computation results demonstrate the good global optimum searching performance of the proposed immune-tabu hybrid algorithm. The presented algorithm can also be used to solve other optimization problems in fields such as the chemical industry and the power industry.     

Big school,small school: Impact of the high school environment

An investigation of the relationship between high school priorities and self-concept was undertaken. Upper and underclassmen from large and small high schools completed questionnaires and the Piers-Harris Children's Self-Concept Scale. Participation in five activity areas was related to self-concept using a multiple-regression technique. The perceived similarity of each student's priorities with the school's priorities was also correlated with self-concept. The relationships accounting for the greatest proportion of the variance in self-concept scores were found among small-school upperclassmen. The results were interpreted as support for Barker's argument that small school students feel a greater obligation to participate in school activities.     

信息构建理念下图书馆个性化信息服务探讨

分析了图书馆个性化信息服务的内涵和我国图书馆个性化信息服务的现状。指出其中的不足之处。在对信息构建理念进行简要介绍的基础上，论述了IA理论对图书馆个性化服务的意义和IA理论与个性化信息服务之间的联系。并具体探讨了IA理论对图书馆个性化信息服务的启示和二者相结合的理论模型。最后提出IA理论运用于图书馆个性化信息服务时应注意的若干问题。     

The role of paraphrased adjunct questions in facilitating learning from prose

Twenty-six college student read a 5000-word prose passage and answered either verbatim or paraphrased inserted questions while reading about international communication. Students either were or were not permitted to review the text while answering the inserted questions. On a subsequent post-test containing new paraphrases of the adjunct questions, students who received paraphrased adjunct questions outperformed students who received verbatim adjunct questions. This result supported the contention that paraphrased adjunct questions could facilitate meaningful learning from prose.     

IA应用研究--我国政府网站考察与评价

Issuing government information is a major task of the government Website. So it‘‘s important that the government Website is organized in accordance with the users‘‘ need and habit. In this article, the theory of Information Architecture (IA) is used to examine and evaluate some government Websites in an attempt to investigate some elements of government Websites such as the navigation system, information retrieval method and ways of information organizing and labeling.     

IA的底层信息组织与概念空间(1)

在探讨IA 自底向上(Bottom - up ) 信息组织方法的基础上探索概念空间构建的原理、方法以及步骤, 并举例说明其在医学信息检索领域的应用。     

IA4421芯片高效应用研究

本文介绍了一种基于IA4421无线收发芯片和STC12LE2052AD低功耗微处理器的近距离数据传输模块。用户只需将要发送的数据传至单片机的串口即可,模块自动实现分包发送。最大通信距离可达200米,其接收灵敏度为109dBm,最大发射功率为8dBm。文中着重介绍了该模块的硬件和软件设计。     

信息构建核心领域研究进展

从发展历程、研究内容、学科特点及国际研究热点问题和国内发展现状等方面对信息构建进行了探讨,总结了研究过程中出现的问题,并对未来的研究趋势做了预测。     

基于免疫算法的机器人路径规划

本文采用栅格法建立机器人的环境模型,把免疫算法应用到机器人的路径规划中,通过提出一种新的多因素适应度函数,使对个体的评估更符合机器人所需要的最优路径。仿真结果表明该方法可行,而且有效,可以提高收敛速度,并与遗传算法进行比较,发现使用该免疫算法解决了遗传算法后期的波动现象。