试论苏轼的赤壁情结     

杨学东  陈天钦 《临沧师范高等专科学校学报》2011,(3)

贬谪黄州的苏轼似乎与赤壁结下了不解之缘,在著名的赤壁三咏(《前赤壁赋》、《后赤壁赋》、《念奴娇·赤壁怀古》)中,把对自然山水的观照与对历史、人生的反思结合起来,在自然中融入深沉的历史感和人生感慨。试从赤壁情结产生缘由、创作中的具体表现及对当时及后世的影响等方面阐释,力图让苏轼赤壁情结更具体、更形象地呈现出来,给读者以思考和启迪。  相似文献   

夸父逐日神话:通向乐园的苦难征程     

王先灿 《临沧师范高等专科学校学报》2011,(3)

夸父逐日最早见于《山海经》与《列子》中的相关记载。对夸父逐日的相关研究得出两个结论,一个结论认为夸父逐日不是神话,另一个结论与之相反,认为夸父逐日是神话。文章厘清两个结论内部的各种代表观点,并认为夸父逐日是神话,在此基础上提出新的观点,即夸父逐日神话蕴含西方意象,夸父逐日隐喻东方人的乐园情结,夸父向西逐日是求索幸福与价值,夸父逐日神话表征东方民族通向乐园的苦难征程。  相似文献   

数字图书馆中的智能推荐技术研究     

王正勤  牛永芹  颜莉莉 《图书情报工作》2011,55(17):108-111

为构建一种精确性较高的智能信息技术模型,对蚁群算法、SOM网络进行分析与研究,并基于两者构建智能推荐技术,运用该技术完成模型的建立与更新。最后利用已建模型对目前较通用的读者原始流通信息记录进行测试,验证结果表明该技术的个性化信息服务的准确率较高,且具有较高理论意义与应用价值。  相似文献   

知识网络的结构及其知识活动分析     

王涛  顾新 《图书情报工作》2011,55(16):107-110

认为知识网络能帮助企业整合资源,获取竞争优势。对以知识链为基本单元的知识网络的内涵、结构及其知识活动进行分析,提出知识网络的构成要素包括网络节点、网络资源、网络活动和支撑环境四个部分,构建出知识网络结构示意图。在此基础上,分析知识网络中的知识活动以及知识活动的基本分析单位之间的知识流动模式。  相似文献   

基于扩展模糊概念网的信息检索结果个性化的研究     

俞扬信 《情报学报》2011,28(3)

电子文档和用户的增长导致了信息检索结果个性化模式的创新,从而更好地为用户偏好服务.个性化的内容检索旨在改善检索过程中考虑个别用户的特殊兴趣.本文提出了一种基于扩展模糊概念网的信息检索结果的个性化的新方法.在这种方法中,网页和用户偏好都将以扩展模糊概念网形式表示.扩展模糊概念网可看作是关系矩阵和关联矩阵模型,关系矩阵中的元素代表模糊概念间的关系,关联矩阵中的元素表明概念间的关联度.这种方法的好处是能找到用户查询的绝大多数文档并且更灵活、更好地显示给用户.  相似文献   

试论手机媒体内容的信息网络传播权     

曲博  党跃臣 《图书馆学研究》2011,(1):74-77

当前,手机已成为继报刊、广播、电视、互联网之后被公众所广泛认知的"第五媒体",即手机媒体。手机媒体内容作为无可置疑的著作权法涵盖客体是手机媒体传播的主要对象,其信息网络传播权因手机媒体传播方式的多样性而受到巨大威胁。手机媒体内容信息网络传播权研究是著作权法学理论应用于手机媒体领域中的一项重要课题。文章以手机媒体内容的作品性为研究基点,探讨其信息网络传播权的内涵与特征,进而界定了常见的侵权行为。  相似文献   

网络分析方法在引文分析中的整合研究   总被引：4，自引：3，他引：1  

宋歌 《中国图书馆学报》2011,37(4)

随着社会网络分析在各学科领域的不断渗透,复杂网络理论的兴起和可视化技术的进步,引文分析面临着研究范式从个体主义到整体主义的转变,研究方法从统计分析到网络分析的融合。本文通过对引文网络形成过程和本质属性的探究,以及对网络分析方法理论前提和分析原理的考察,探索网络分析方法在引文分析中的整合途径。具体包括测度引文网络整体结构特性,探究网络结构的形成机制和演化过程,分析引文网络的细分结构、可视化引文分析过程与结果等方面的整合。图1。表2。参考文献28。  相似文献   

Improving graph-based random walks for complex question answering using syntactic,shallow semantic and extended string subsequence kernels     

Yllias Chali  Sadid A. Hasan  Shafiq R. Joty 《Information processing & management》2011

The task of answering complex questions requires inferencing and synthesizing information from multiple documents that can be seen as a kind of topic-oriented, informative multi-document summarization. In generic summarization the stochastic, graph-based random walk method to compute the relative importance of textual units (i.e. sentences) is proved to be very successful. However, the major limitation of the TF^*IDF approach is that it only retains the frequency of the words and does not take into account the sequence, syntactic and semantic information. This paper presents the impact of syntactic and semantic information in the graph-based random walk method for answering complex questions. Initially, we apply tree kernel functions to perform the similarity measures between sentences in the random walk framework. Then, we extend our work further to incorporate the Extended String Subsequence Kernel (ESSK) to perform the task in a similar manner. Experimental results show the effectiveness of the use of kernels to include the syntactic and semantic information for this task.  相似文献   

Professional networks, scientific collaboration, and publication productivity in resource-constrained research institutions in a developing country     

Marcus Antonius Ynalvez  Wesley M. Shrum 《Research Policy》2011,40(2):204-216

We test the hypothesis that scientific collaboration is associated with increased publication productivity. We differentiate our approach from other studies by (a) incorporating professional networks in the productivity model, (b) casting productivity and collaboration as distinct phenomena, and (c) examining these phenomena in the context of resource-constrained research institutions in a developing country. We use survey data and employ negative binomial regression models. Results indicate that publication productivity is significantly linked to professional network factors, but there is no evidence of any association with scientific collaboration. We observe that most scientists collaborate in research projects despite coordination difficulties, and without any measurable impact on their productivity. Our interviews reveal that a possible answer to this puzzle appears to be rooted in a practice that views collaborative research projects not mainly as a means to producing knowledge and gaining recognition, but for acquiring professional opportunities and extrinsic rewards. Our findings suggest a new way of modeling publication productivity, with implications for science and innovation policy in both the developed and the developing world.  相似文献   

Knowledge management and communication in Brazilian agricultural research: An integrated procedural approach     

Tércia Zavaglia TorresAuthor VitaeIvo Pierozzi Jr.Author Vitae  Nadir Rodrigues PereiraAuthor VitaeAlexandre de CastroAuthor Vitae 《International Journal of Information Management》2011,31(2):121-127

The great contemporary organizational challenge for enterprises is to create a conceptual and methodological framework allows the management of knowledge by means of networks designed for social interaction. This statement is based on the premise that the competitive drive and sustainable success of the company depend on the introduction of new forms of production innovative processes, which can only be ensured through integrated approaches to knowledge management and the incorporation information technologies (IT). This is a reality that has already been accepted by the Brazilian Agricultural Research Corporation (Embrapa, its acronym in Portuguese), a Brazilian research, development, and innovation (RD&I) institution supporting agricultural sector. For some years now, Embrapa has been incorporating what it has learned about knowledge management into its strategic planning process. In this paper, we present a new approach to managing knowledge and information, and we analyze the need for research institutions to administer the knowledge they produce through an RD&I management model based multi- and inter-disciplinary teams, and multi-institutional research networks.  相似文献