我国科技期刊DOI使用现状分析——以大气科学类2014年版CJCR核心期刊为例     

申乐琳 《中国科技期刊研究》2016,27(6):624-628

【目的】找出大气科学类期刊DOI注册和应用中存在的问题并及时解决,充分发挥DOI在科技期刊的作用,普及DOI检索在科研中的应用。【方法】调查分析2014版《中国科技期刊引证报告（核心版）》大气科学类核心期刊使用DOI的现状,包括DOI的注册及标注、文后参考文献著录,以及DOI的解析情况。【结果】大气科学类期刊DOI注册较成熟,但是DOI的应用和宣传远远不够,特别表现在文后参考文献的著录、首页的推荐引用格式,以及解析不准确等方面。【结论】提出科技期刊应做好DOI注册的后期工作,并加大DOI的宣传力度,提高DOI解析的正确性,在DOI的应用方面早日与国际接轨。  相似文献   

资源依赖视角下单项体育协会人力资源困境的破解     

寇明宇  沈克印 《湖北体育科技》2021,(1):12-14,75

单项体育协会由于物质激励、职业发展激励不足,长期存在着专职人员短缺、年轻化和高层次人才匮乏等问题。政社脱钩关于人事分离的相关规定更加剧了单项体育协会人力资源困境。资源依赖理论视角下,破解单项体育协会的人力资源困境有两种思路,一是通过主动承接政府转移职能、承接政府购买公共体育服务、开展有偿经营性服务活动等方式增加单项体育协会的物质基础;二是通过建立体育志愿服务长效机制、探索构建人才共享机制,发挥单项体育协会的信息优势、技术优势和平台优势等多种比较优势,拓展非物质资源交换的人才获取渠道。  相似文献   

基于句法语义的网络舆论情感倾向性评价技术研究   总被引：2，自引：0，他引：2  

段建勇  谢宇超  张梅 《情报杂志》2012,(1):147-150

提出一个基于句法语义的情感倾向性评测算法。首先构建特定领域的情感语料库,然后提取情感知识库,为后续情感分析提供必要的基本数据。算法以句子为基本单位进行处理,运用基于扩展句法树的语言处理模型,从单句到篇章计算文本情感倾向。实验证实该方法是有效的。  相似文献   

依存语法在日汉自动句法转换中的应用     

黄金柱  李青 《洛阳师范学院学报》2010,29(5):81-83

依存语法主要研究语言中词汇间的依存关系为主线,进而分析语句的深层语义关系.日语是一种与语义联系较为紧密的语言,因此利用依存关系分析日语句子结构和自动转换则显得行之有效.本文根据日汉语言的特点及差别,浅谈利用依存语法来处理在日汉机器翻译中遇到的一些问题,提出了两种解决方案,很好地解决了在语言转换过程中的语义分析和句法转换问题.  相似文献   

大学生上网行为对高校思想政治教育的影响     

付奎亮 《南京广播电视大学学报》2010,(3):57-60,65

网络化是信息化的重要特征之一,随着互联网（包括移动互联网,以下简称网络）的迅速发展和日益普及,网络与当代大学生的生活越来越密不可分。网络对大学生带来各种便利的同时,对他们的思想观念、价值观念、行为模式等方面都产生了深远的影响。因此,在网络环境下,如何开展高校思想政治教育,是我们高校思想政治教育工作面临的一个新课题。文章从大学生的上网行为分析入手,通过对大学生上网地点、上网设备、上网深度及网络生活形态等各方面的分析,指出了网络对大学生思想政治的影响,并在此基础上论述了网络环境下思想政治教育要从观念、方法和内容上进行创新。  相似文献   

基于领域本体和语块分析的信息抽取的研究与实现     

丁晟春  刘逶迤  熊霞  梅健 《情报学报》2010,29(1)

为了提高信息抽取过程中的语义深层次的理解和准确率,本文提出了一种基于领域本体和语块分析的语义信息抽取方法,在详细说明其信息抽取模型的基础上,重点针对命名实体识别、词性组合模板、基于本体的三元组和二元组规则等关键问题进行了深入的分析和研究,提出了相应的解决方法,并进行了相关试验性研究.结果表明:采用本文所述的系统结构及其技术构建文本信息抽取系统是可行的,其能在深层次语义理解的基础上进一步提高信息抽取的准确率.  相似文献   

Self-training on refined clause patterns for relation extraction     

Duc-Thuan Vo  Ebrahim Bagheri 《Information processing & management》2018,54(4):686-706

Within the context of Information Extraction (IE), relation extraction is oriented towards identifying a variety of relation phrases and their arguments in arbitrary sentences. In this paper, we present a clause-based framework for information extraction in textual documents. Our framework focuses on two important challenges in information extraction: 1) Open Information Extraction and (OIE), and 2) Relation Extraction (RE). In the plethora of research that focus on the use of syntactic and dependency parsing for the purposes of detecting relations, there has been increasing evidence of incoherent and uninformative extractions. The extracted relations may even be erroneous at times and fail to provide a meaningful interpretation. In our work, we use the English clause structure and clause types in an effort to generate propositions that can be deemed as extractable relations. Moreover, we propose refinements to the grammatical structure of syntactic and dependency parsing that help reduce the number of incoherent and uninformative extractions from clauses. In our experiments both in the open information extraction and relation extraction domains, we carefully evaluate our system on various benchmark datasets and compare the performance of our work against existing state-of-the-art information extraction systems. Our work shows improved performance compared to the state-of-the-art techniques.  相似文献   

Universities responding to policy: Organisational change at the University of Namibia     

Robert Kirby-Harris 《Higher Education》2003,45(3):353-374

In this article the development of the University of Namibia since itsestablishment (8 years ago) has been studied within the context of theformation of the newly-independent Southern African state of Namibia. Ahybrid framework, based on the major theoretical perspectives ofneo-institutionalism and resource dependency, has been utilized toanalyse the accounts of key respondents involved in these developmentsand hence derive an explanatory narrative of the changes involved inresponse to (government) policy.It is suggested that the major themes within this narrative may be ofexplanatory value when studying organizational change in small(developing) countries with relatively young institutions. Inparticular, the following concepts are worth highlighting: thenormatively strong but operationally weak state interacting with thenormatively weak but operationally strong institution; the commonpolitical elite, with institutional leaders sharing government values;and the relative informality of policy formulation and pluralism ofgovernment, with leading institutional actions having a policy sensingand shaping role.The loose set of themes devised from the interpretation ofsemi-structured interviews with a relatively small number of respondentscan also be considered as providing a conceptual framework for furtherresearch both within the specific institution and on a broadercomparative basis.  相似文献   

A novel dependency language model for information retrieval     

CAI Ke-ke BU Jia-jun CHEN Chun QIU Guang 《浙江大学学报(A卷英文版)》2007,8(6):871-882

This paper explores the application of term dependency in information retrieval (IR) and proposes a novel dependency retrieval model. This retrieval model suggests an extension to the existing language modeling (LM) approach to IR by introducing dependency models for both query and document. Relevance between document and query is then evaluated by reference to the Kullback-Leibler divergence between their dependency models. This paper introduces a novel hybrid dependency structure, which allows integration of various forms of dependency within a single framework. A pseudo relevance feedback based method is also introduced for constructing query dependency model. The basic idea is to use query-relevant top-ranking sentences extracted from the top documents at retrieval time as the augmented representation of query, from which the relationships between query terms are identified. A Markov Random Field (MRF) based approach is presented to ensure the relevance of the extracted sentences, which utilizes the association features between query terms within a sentence to evaluate the relevance of each sentence. This dependency retrieval model was compared with other traditional retrieval models. Experiments indicated that it produces significant improvements in retrieval effectiveness.  相似文献   

村委会候选人产生过程的政治内涵——古坪村选举的观察与解读     

刘圣中 《江西师范大学学报(哲学社会科学版)》2007,40(6):57-63

乡村选举是乡村社会中既有的多重力量互动的过程,包括政府组织的运作、党组织的意图、村干部的人情关系、村民的偏好等要素都影响着乡村选举的产生、变化和结果。乡村选举中最重要的环节是候选人的产生,候选人的海选推举、票决、提名到最终确定牵涉了前述的多重力量的互动,候选人就是在这个复杂互动的网络中产生出来的。这一过程充分展现了乡村选举的政治性内涵。  相似文献