影响SEO优化的网站站内结构分析     

张予民 《科技广场》2014,(9)

在网络营销的不断普及和搜索引擎技术飞速发展的环境下,网站如何被搜索引擎收录并在收录结果中获得较高的排名,已经成为网站建设者面临的主要问题,而一个网站站内结构的好坏,直接关系到网站能否被搜索引擎收录,是一切搜索引擎优化(SEO)的基础。所以能否正确优化网站结构,也每个网站建设者必须解决的问题。  相似文献   

Revisiting Cross-document Structure Theory for multi-document discourse parsing     

Erick Galani Maziero  Maria Lucía del Rosário Castro Jorge  Thiago Alexandre Salgueiro Pardo 《Information processing & management》2014

Multi-document discourse parsing aims to automatically identify the relations among textual spans from different texts on the same topic. Recently, with the growing amount of information and the emergence of new technologies that deal with many sources of information, more precise and efficient parsing techniques are required. The most relevant theory to multi-document relationship, Cross-document Structure Theory (CST), has been used for parsing purposes before, though the results had not been satisfactory. CST has received many critics because of its subjectivity, which may lead to low annotation agreement and, consequently, to poor parsing performance. In this work, we propose a refinement of the original CST, which consists in (i) formalizing the relationship definitions, (ii) pruning and combining some relations based on their meaning, and (iii) organizing the relations in a hierarchical structure. The hypothesis for this refinement is that it will lead to better agreement in the annotation and consequently to better parsing results. For this aim, it was built an annotated corpus according to this refinement and it was observed an improvement in the annotation agreement. Based on this corpus, a parser was developed using machine learning techniques and hand-crafted rules. Specifically, hierarchical techniques were used to capture the hierarchical organization of the relations according to the proposed refinement of CST. These two approaches were used to identify the relations among texts spans and to generate multi-document annotation structure. Results outperformed other CST parsers, showing the adequacy of the proposed refinement in the theory.  相似文献   

知识管理自学习案例平行结构体方面相似度模型     

张建华 《情报杂志》2014,(10)

为建立知识管理系统的自学习与自组织机制,本文将基于案例推理的技术思想引入知识管理自学习子系统,对知识管理自学习案例的平行结构体方面相似度进行系统而深入地研究。首先,论文对相关文献进行述评,阐明了本文研究的出发点,诠释了知识管理自学习案例平行结构体方面的内涵及其特征;继而,分七种情况深入讨论了平行结构体方面维度相似度的计算方法,并在此基础上提出了方面相似度的计算策略;最后,通过算例分析了相关技术策略与实施细节。  相似文献   

A Dual-Pointer guided transition system for end-to-end structured sentiment analysis with global graph reasoning     

《Information processing & management》2022,59(4):102992

Structured sentiment analysis is a newly proposed task, which aims to summarize the overall sentiment and opinion status on given texts, i.e., the opinion expression, the sentiment polarity of the opinion, the holder of the opinion, and the target the opinion towards. In this work, we investigate a transition-based model for end-to-end structured sentiment analysis task. We design a transition architecture which supports the recognition of all the possible opinion quadruples in one shot. Based on the transition backbone, we then propose a Dual-Pointer module for more accurate term boundary detection. Besides, we further introduce a global graph reasoning mechanism, which helps to learn the global-level interactions between the overlapped quadruples. The high-order features are navigated into the transition system to enhance the final predictions. Extensive experimental results on five benchmarks demonstrate both the prominent efficacy and efficiency of our system. Our model outperforms all baselines in terms of all metrics, especially achieving a 10.5% point gain over the current best-performing system only detecting the holder-target-opinion triplets. Further analyses reveal that our framework is also effective in solving the overlapping structure and long-range dependency issues.  相似文献   

功能高分子材料课程的教学实践与探索     

宇文力辉 《环球赛鸽科技》2014,(34)

功能高分子材料是高分子专业主要的专业课程,它建立在高分子物理、高分子化学等相关学科的基础上,与化工、环境、信息、物理、医学、生物等学科存在广泛的交叉融合,是当前高分子学科中发展最为迅速的领域之一。功能高分子材料具有种类繁多、知识体系复杂、知识更新快等特点,对课堂教学提出了较高的要求。笔者根据自身的教学经验探讨如何较好地开展教学实践并采取相应的教学改革措施。  相似文献   

甘肃省能源经济系统分析与优化策略研究   总被引：2，自引：1，他引：1  

杨冕  陈兴鹏  杨福霞 《资源科学》2010,32(2):359-365

能源经济系统的优化不仅是实现区域节能减排目标的重要途径,更是社会经济可持续发展的主要内容,本文以甘肃省为研究案例,基于计量经济学方法,对其经济增长与能源消耗之间的动态关系进行了定量研究;进而运用结构分解模型,对比分析了影响单位GDP能耗的主要因素。研究结果表明:甘肃省GDP与能耗总量之间存在长期的协整关系;促进甘肃省能源强度降低的主要因素是各产业能源利用效率的提高,而产业结构变动对全省能源强度降低的贡献份额较小;对能源强度降低贡献较大的为第二产业的效率份额与结构份额,而第三产业结构份额对能源强度降低的贡献为负。文章最后从产业结构优化、关键技术推进、能源结构优化三个角度提出了甘肃省能源经济系统的优化策略。  相似文献   

Accounting for structure and agency in ‘close-up’ research on teaching,learning and assessment in higher education     

Paul Ashwin 《International Journal of Educational Research》2008,47(3):151-158

This paper examines research into teaching, learning and assessment (TLA) in higher education in terms of structure and agency. It argues that although issues of structure and agency are seen as crucial in social theory, they are very little discussed in research into TLA in higher education and that a consideration of structure and agency raises some important questions about this research and the quality of the explanations that it generates. It is therefore time to reconsider this research from the standpoint of structure and agency so that more sophisticated approaches to researching, and generating explanations of, teaching, learning and assessment in higher education can be developed.  相似文献   

Effects of teacher framing on student engagement during collaborative reasoning discussions     

《Contemporary educational psychology》2017

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基于软件体系结构的管理信息系统模型     

汪闰六  易云辉 《科技广场》2005,(5):28-30

在软件体系结构理论的指导下，提出了一个面向企业管理信息系统、具有层次体系结构风格的在一定范围内通用的管理信息系统软件体系结构模型GMISA。  相似文献   

“X什么Y”构式分析     

管志斌 《玉溪师范学院学报》2011,(6):15-19

＂X什么Y＂构式有两种构成方式：一是X和Y为同一单音节行为动词,形成＂V什么V＂构式;二是由动宾式结构VN中间插入＂什么＂构成,形成＂V什么N＂构式。该构式可归结为拷贝式＂话题—情态＂构式,这是一种语用否定构式,其核心构式义为＂否定＂,非核心义为＂责备＂和＂提醒＂。  相似文献