Motion information analysis system based on acceleration signals

A motion information analysis system based on the acceleration data is proposed in this paper,consisting of filtering,feature extraction and classification.The Kalman filter is adopted to eliminate the noise.With the time-domain and frequency-domain analysis,acceleration features like the amplitude,the period and the acceleration region values are obtained.Furthermore,the accuracy of the motion classification is improved by using the k-nearest neighbor （KNN） algorithm.     

提高实验人员信息意识 促进科学发现

增强实验人员信息意识有助于获得科学发现.通过对信息意识的产生、特征和表现形式的分析,探讨了实验中信息意识的作用及其在实验中促使科学发现的价值;最后,提出了如何在实验中提高实验人员信息意识的措施.     

类比推理在科学发现中的作用

类比推理是科学研究中一种重要的手段之一。笔者从物理、数学等方面论述了类比推理在科学发现中的重要作用。     

发现法在体育与健康课教学中的应用

发现法是以发展学生的创造性思维能力为目标，以解决问题为中心，以结构化的教材为题材，以再度发现为学法的一种教学方法，结合日常教学中的具体实例，论述了发现法在体育与健康课教学中的应用。     

未来图书馆与知识发现

文章回顾了图书馆与时俱进从情报化成为现代信息中心再展英资的历程，从知识在创新中的地位作用和获取应用的角度，把知识分为显性知识与隐性知识两大类，进而，反隐性知识划分为主观隐性知识、客观隐性知识和主客观交叉的隐性知识3等三种。从实现创新的过程及其对知识的需求，论证了使隐性知识“浮出水面”的知识发现是创新的源泉与保障；论证了开创满足用户隐性知识需求的服务新领域，是图书馆面临的新的机遇与挑战。     

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��[Purpose/significance] Reviewing and combing the development process and research status of library resource discovery system has important theoretical and practical significance for promoting deep integration and innovation of resource discovery system and library development.[Method/process] Based on China Knowledge Network (CNKI), Web of Science, Emerald Insight, Elsevier, Taylor & Francis SSH and other academic databases, the paper summarized the theoretical research, system selection, deployment implementation, service promotion, effectiveness evaluation and impact research of library resource discovery system by content analysis and case study.[Result/conclusion] The research results demonstrate that the resource discovery system is applied rapidly in the library. The research process of resource discovery system has obvious periodicity and stage. There are differences in the evolution of resource discovery systems at home and abroad. The research content is practical and the theoretical depth is insufficient. Research methods are mainly case studies and questionnaires, and quantitative research methods are few. Therefore, library resource discovery system should be deeply integrated with the library service, expand the scope of research and strengthen the research depth, and strengthen the research on the user profile of the resource discovery system.     

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��[Purpose/significance] Electronic resources accessproblems are increasingly obvious because of the launch of new service platform ALMA and PRIMO, which confuses the librarians and affects users' experience. Library should pay more attention to it.[Method/process] The paper reviewed the literatures on electronic resources troubleshooting, analyzed the flow chart of electronic resources access in discovery system and also investigated examples of commonly encountered access problems.[Result/conclusion] Summarizing the research progress on electronic resources access issues and outline the access process. Major reasons of access trouble are examined from 3 aspects:metadata quality and configuration in Primo Central Index and ALMA, information change of electronic resources themselves. Some suggestions for solving access problems are put forward.     

ESTIMATION METHOD FOR MIXED-EFFECT COEFFICIENT SEMIPARAMETRIC REGRESSION MODEL

ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｉｓｐａｐｅｒｃｏｎｓｉｄｅｒｓｔｈｅｍｉｘｅｄ ｅｆｆｅｃｔｃｏｅｆｆｉ ｃｉｅｎｔｓｅｍｉｐａｒａｍｅｔｒｉｃｒｅｇｒｅｓｓｉｏｎｍｏｄｅｌＺ =Ｘ′α Ｙ′β ｇ(Ｔ) ｅ,(1 )ｗｈｅｒｅＸ ,ＹａｎｄＴａｒｅｒａｎｄｏｍｖｅｃｔｏｒｓｏｎＲｐ,Ｒｑａｎｄ [0 ,1 ]ｒｅｓｐｅｃｔｉｖｅｌｙ ,αｉｓａｐ ｄｉｍｅｎｓｉｏｎａｌｆｉｘｅｄ ｅｆｆｅｃｔｐａｒａｍｅｔｅｒ,βｉｓａｑ ｄｉｍｅｎｓｉｏｎａｌｒａｎ ｄｏｍ ｅｆｆｅｃｔｐａｒａｍｅｔｅｒ (Ｅβ =ｂ ,Ｃｏｖ(β) =∑) ,ｇ(.)ｉ…     

试论信息发现

本文讨论了信息发现的涵义及其与信息检索的不同,并对信息发现的相关的一些要领做了初步阐述。     

知识发现研究文献定量分析

知识发现是指借助于计算机技术来揭示隐含在大量数据中的规律或模式的一种方法。以SCIE和SSCI为数据源,以主题词为检索方式,采用定量分析的方法,确定知识发现领域的核心期刊、核心机构、核心作者,并分析知识发现研究主题和高影响力的学术论文。从而分析出国内外知识发现研究现状与趋势。