基于LDA主题模型的专利文本分析应用研究

为了解决运用传统的专利文本分析方法中出现的分类粗糙、科学性不强等问题,提出使用基于Latent Dirichlet Allocation(LDA)主题模型的专利文本分析方法。以我国转基因玉米育种领域专利文本为研究对象,对专利文本主题进行划分。通过实验表明LDA主题模型对专利文本的划分和热门领域的分类准确、有效。并得出结论:对专利文本使用LDA主题模型建模可以实现对专利文本的分类,可以实现对热门领域主题分类、子领域细分,并对未来发展态势给出意见。     

Myopia and saliency in renewable resource management

An important challenge in managing renewable resources is to understand why owners and managers sometimes make decisions that deplete resources and future earnings, such as when graziers allow pastures and land condition to be degraded. In this paper, we test two potential reasons for unsustainable management practices, myopia and salience, with each explaining why resource managers may exhibit impatience in harvest decisions. Myopia is associated with decision makers placing lower weight on future outcomes than would be implied by their pure time preference. Salience is associated with overweighting of consumption ‘now’, implying inconsistency in time preferences. To test for these effects on renewable resource management, an incentivised, dynamic field experiment was carried out with rangeland grazing enterprise owners in north‐eastern Australia that related management choices with uncertain rainfall events to both profits and land condition over time. Results demonstrate that respondents exhibiting myopia/salience in their choices tended to achieve lower cumulative scores in the experiment, as well as lower land conditions on their properties as measured with remote sensing data. Our results explain why there may be persistent optimisation failures by resource owners that reduce both profits and environmental outcomes.     

干法烟气脱硫渣在建材行业中高技术附加值利用的探讨

文章阐述了目前国内外对干法脱硫渣综合利用的现状,以胶凝材料学以及水泥化学为理论基础,将干法脱硫渣中的物质划分为三类,并提出在充分激发其活性的基础上,对干法脱硫渣进行高技术附加值的利用,并详细阐述了其原理和途径。     

一个金融上的社会运动的观点:社会责任投资重要

此文所讨论的是社会运动如何影响经济体系.运用一种政治--文化的方式去对待市场,这意味着折衷行为可以利用一个可预见的新制度去帮助改变现有的金融制度.此文的观点立足于支持社会运动重整经济制度出发.     

语域理论在大学英语写作课中的应用

语域理论是韩礼德（Halliday）系统功能语言学中的重要理论之一。它对英语教学有很大帮助。本文以写作教学中评估的五个要素为出发点,通过语域理论分析这五个方面在写作过程中是如何实现的。语域理论的运用,可以使学生的作文内容表达更符合要求、语篇组织更衔接、词汇选择更合理、语言使用更得体以及技术性细节处理的更符合惯例。     

Are multinational teams more successful?

Teams have become increasingly multinational in many sectors. The impact of national diversity on team performance is, however, controversial. On the one hand, multinational teams may have access to a greater variety of task-relevant expertise, which should increase the team performance. On the other hand, national diversity may complicate team collaboration and increase team conflict. Applying panel econometrics to 4284 team observations in a globalized sector, we find evidence that multinational teams perform worse than teams with less national diversity.     

以内资bot方式建设我国基础设施的可行性研究

BOT模式自20世纪80年代引入我国之后,在我国的基础设施建设领域发挥了重大的作用。然而,我国大量的民间资本由于种种原因找不到合适的投资渠道,某些市场领域一旦出现供求矛盾,就会吸引大量的民间资本进行炒作,这就有必要对其进行引导,为其寻求健康的发展环境。而内资BOT模式能够很好的解决这个问题。     

The Development and Positioning of Business Related University Tourism Education

Abstract

The teaching of tourism at a higher education level has become well established in British universities, but in the UK, as elsewhere in the world, the place of tourism studies within the academic curricula remains uncertain. The paper considers the diversity and complexities of tourism studies through a categorisation of journal articles, and through an investigation of the underlying debates that have influenced the design of academic curricula in the UK. The paper concludes that tourism, at least at present, should not be regarded as discipline but as a field and that the most common approach in the UK has been to emphasise the business studies subjects. The University of Northumbria's established undergraduate travel and tourism management course is presented as a case study of this approach to the subject field.