城镇居民体育消费现状调查与分析

本文以咸宁市城镇居民为研究对象,采用文献资料法、问卷调查法、数理统计法对咸宁市城镇居民体育消费意识、体育消费动机、体育消费方式和体育消费水平等体育消费现状进行了分析,并从中找出了我市居民体育消费的特点,因此本文对发展本地区体育产业和促进体育消费的提高有一定意义。     

推进唐山市体育产业发展对策研究

“十二五”规划提出了优化体育产业结构,提高体育服务业的比重,加快区域体育产业协调发展。本文在研究过程中采用了文献资料法,调查法、专家访谈法等研究方法,对唐山市体育产业发展现状和存在的问题进行了研究。分析影响唐山市体育产业发展的因素,借鉴国内外体育产业的发展经验,结合唐山市的实际情况,探讨唐山市体育产业发展对策。     

奥运经济对中国体育产业发展的影响研究

本文通过文献资料法、综合分析法、比较分析法等,运用产业经济学原理分析奥运经济对我国体育产业发展的积极影响,指出奥运经济对体育产业发展的消极影响,并提出防止奥运经济对中国体育产业产生消极影响的方法,旨在为促进我国体育产业的健康持续发展提供理论支持。     

咸宁市城区少儿羽毛球培训市场现状研究

采用文献资料法、问卷调查法和数理统计法等研究方法,对咸宁市城区少儿羽毛球培训市场的现状进行研究。通过调查发现,目前咸宁市城区羽毛球少儿培训市场的发展仍处于起步阶段,发展潜力较大,但诸多方面还不够完善,亟需改进提高。     

影响广州体育产业发展中政府行为效果的因素分析

本文运用文献资料法、问卷调查法等综合的研究方法,对影响广州市政府在促进体育产业发展过程中各种行为及其效果因子进行了分析,为新时期广州市政府加强对体育产业的指导,制定科学正确的相关管理制度和政策,促进广州体育产业的发展提供了有益的参考。     

河北省体育产业发展现状的研究

本文采用文献法、调查法、逻辑分析等方法对河北省体育产业发展现状进行整理分析,结合实际找出存在的问题,在此基础上提出发展河北省体育产业的对策,为更好地发展体育产业,振兴河北经济起到积极的作用。     

未央区体育产业集群培育与发展研究

<正>通过运用文献资料法、问卷调查法和访谈法等，明晰未央区体育产业集群培育与发展的优势，通过分析未央区体育产业集群培育与发展面临的问题，提出了未央区体育产业集群培育与发展的策略，为未央区体育产业集群培育与发展提供理论支撑，体育区域体育产业集聚发展。     

衡阳市发展休闲体育产业的SWOT分析

本文运用SWOT法对衡阳市发展休闲体育产业的优势、劣势、机会和威胁进行了分析,为衡阳市休闲体育产业的发展提出理论依据和策略。     

临沂市休闲体育产业发展现状与对策研究

本文采用实地调查法、访谈法、文献资料法等研究方法,对临沂市休闲体育产业发展现状进行综合性分析。临沂市休闲体育产业的发展以蒙山沂水自然环境为依托,生态化发展为主线。通过原创与引进两个渠道,丰富了沂河国际运动娱乐节体育项目设置;休闲体育旅游产业发展模式为"体育旅游加文化体验";休闲体育用品产业与临沂市物流体育产业相结合。临沂市休闲体育产业的发展已初具规模。     

财经类本科院校学校体育发展方向研究——以广西财经学院为例

运用访谈法、对比研究法、以及文献资料法,通过与中央财经大学、江西财经大学在学科专业建设的对比研究,探索出广西财经学院学校体育工作的发展方向,即:开设体育产业管理本科专业,培养体育产业应用型人才;设立体育产业研究所,成为广西体育产业发展的智库;打造体育产业实验教学基地,服务社会。     

Projects as communicating systems: Creating a culture of innovation and performance

Although often downplayed and instrumental, there is evidence that communication in projects is essential in achieving value creation. Our main interest in this paper is on temporary continuity, a situation where the temporary becomes a permanent condition in social systems. The question that we have address is: What characterizes project communication in a situation with temporary continuity?We argue for the need to transform communication processes into communication capabilities. In a situation with temporary continuity, there is a need to connect to a large number of value-creating processes, and communicating capabilities need to be a part of a communication system, where the aim is to bind together value-creating processes and communication capabilities. We construct a viable system consisting of five sub-systems. To become a viable system, projects in the form of temporary continuity, must handle the potential conflict between a culture of performance and a culture of innovation. This involves developing social mechanisms for coordination and interaction, with a focus on developing communication capabilities, in parallel with focusing on all of the five value-creation processes.     

1961-2013年华北晋冀山地和黄土高原区树木生长季变化趋势

为预测气候变化下的森林植被生长季特征变化,本文基于华北晋冀山地区和黄土高原区两个区域44个气象站1961-2013年日气温数据,分析了华北湿润半湿润地区两个区域树木生长季特征的变化趋势。定义生长季开始时间为当连续5天日平均温度≥5℃,选第5天作为生长季开始时间;生长季结束时间为当秋季连续5天日平均温度<5℃,选第5天作为生长季结束时间。结果表明:①1961-2013年晋冀山地区和黄土高原区以及两个区域整体树木生长季开始时间呈现显著提前趋势,变化速率分别为-1.7d/10a、-2.1d/10a和-1.9d/10a;树木生长季结束时间均呈现显著延后趋势（p<0.05）,变化速率分别为0.9d/10a、1.1d/10a和1.0d/10a;研究区树木生长季长度表现出明显的延长趋势,晋冀山地区和黄土高原区以及两个区域整体的树木生长季长度时间变化速率分别为2.6d/10a、3.2d/10a和2.9d/10a,树木生长季长度分别延长13.3d、16.4d和14.8d;②1961-2013年,海拔对树木生长季指标的影响,除了对晋冀山地区的树木生长季开始影响不大以外,对于两个研究区的其他树木生长季指标均有显著影响;研究区树木生长季指标（生长季开始时间,结束时间和生长季长度）与春季和秋季气温都显著相关;③1961-2013年,树木生长季开始时间变化趋势在整个研究区空间上大部分呈提前趋势,树木生长季结束时间大部分呈延后趋势和树木生长季长度的变化趋势在空间上则大部分呈延长趋势。     

Website usage metrics: A re-assessment of session data

Metrics derived from user visits or sessions provide a means of evaluating Websites and an important insight into online information seeking behaviour, the most important of them being the duration of sessions and the number of pages viewed in a session, a possible busyness indicator. However, the identification of session (termed often ‘sessionization’) is fraught with difficulty in that there is no way of determining from a transactional log file that a user has ended their session. No one logs out. Instead a session delimiter has to be applied and this is typically done on the basis of a standard period of inactivity. To date researchers have discussed the issue of a time out delimiter in terms of a single value and if a page view time exceeds the cut-off value the session is deemed to have ended. This approach assumes that page view time is a single distribution and that the cut-off value is one point on that distribution. The authors however argue that page time distribution is composed of a number of quite separate view time distributions because of the marked differences in view times between pages (abstract, contents page, full text). This implies that a number of timeout delimiters should be applied. Employing data from a study of the OhioLINK digital journal library, the authors demonstrate how the setting of a time out delimiter impacts on the estimate of page view time and the number of estimated session. Furthermore, they also show how a number of timeout delimiters might apply and they argue that this gives a better and more robust estimate of the number of sessions, session time and page view time compared to an application of a single timeout delimiter.     

Accessing and Browsing Information and Communication,by Ronald E. Rice,Maureen McCreadie,and Shan-Ju L. Chang. Cambridge,MA: MIT Press, 2001. xiii + 357 pp., $45.00. ISBN 0-262-18214-9.

Critics have argued that information and communication technologies (ICTs) disconnect people from their social networks and reduce public participation. Research in support of this perspective has been biased by two assumptions. The first is a tendency to privilege the Internet as a social system removed from the other ways people communicate. The second is a tendency to favor broadly supportive strong social ties. Survey and ethnographic observations from Netville, a 2-year community networking experiment, suggest that weak, not strong ties experience growth as a result of ICTs. By examining a unique and underexplored stage in the life cycle of a community networking project, the end of a networking trial, this article demonstrates how ICTs facilitate community participation and collective action (a) by creating large, dense networks of relatively weak social ties and (b) through the use of ICTs as an organizing tool.     

Location extraction from tweets

Five hundred million tweets are posted daily, making Twitter a major social media platform from which topical information on events can be extracted. These events are represented by three main dimensions: time, location and entity-related information. The focus of this paper is location, which is an essential dimension for geo-spatial applications, either when helping rescue operations during a disaster or when used for contextual recommendations. While the first type of application needs high recall, the second is more precision-oriented. This paper studies the recall/precision trade-off, combining different methods to extract locations. In the context of short posts, applying tools that have been developed for natural language is not sufficient given the nature of tweets which are generally too short to be linguistically correct. Also bearing in mind the high number of posts that need to be handled, we hypothesize that predicting whether a post contains a location or not could make the location extractors more focused and thus more effective. We introduce a model to predict whether a tweet contains a location or not and show that location prediction is a useful pre-processing step for location extraction. We define a number of new tweet features and we conduct an intensive evaluation. Our findings are that (1) combining existing location extraction tools is effective for precision-oriented or recall-oriented results, (2) enriching tweet representation is effective for predicting whether a tweet contains a location or not, (3) words appearing in a geography gazetteer and the occurrence of a preposition just before a proper noun are the two most important features for predicting the occurrence of a location in tweets, and (4) the accuracy of location extraction improves when it is possible to predict that there is a location in a tweet.     

Kalman滤波器在单运动目标自动跟踪中的应用

在系列帧图像中对运动目标以直方图为模型的模板方法进行匹配,由于模板匹配计算量非常大,要想在整幅图像中对目标进行搜索匹配,同时又要达到实时是不可能的。我们对目标状态进行可靠的估计,可以在相对较小的区域内完成对模板的搜索,Kalman滤波器就是一个对动态系统的状态序列进行线形最小方差估计的算法。通过以动态的状态方程和观测方程来描述系统,它可以将任意一点作为起点开始观测,采用递归滤波的方法计算。该算法具有计算量小、可实时计算的特点。     

A rapid review method for extremely large corpora of literature: Applications to the domains of modelling, simulation, and management

While literature reviews with a large-scale scope are nowadays becoming a staple element of modern research practice, there are many challenges in taking on such an endeavour, yet little evidence of previous studies addressing these challenges exists. This paper introduces a practical and efficient review framework for extremely large corpora of literature, refined by five parallel implementations within a multi-disciplinary project aiming to map out the research and practice landscape of modelling, simulation, and management methods, spanning a variety of sectors of application where such methods have made a significant impact. Centred on searching and screening techniques along with the use of some emerging IT-assisted analytic and visualisation tools, the proposed framework consists of four key methodological elements to deal with the scale of the reviews, namely: (a) an incremental and iterative review structure, (b) a 3-stage screening phase including filtering, sampling and sifting, (c) use of visualisation tools, and (d) reference chasing (both forward and backward). Five parallel implementations of systematically conducted literature search and screening yielded a total initial search result of 146 087 papers, ultimately narrowed down to a final set of 1383 papers which was manageable within the limited time and other constraints of this research work.     

从奎因到索萨——论自然化知识论的德性转向

奎因把知识论视为心理学的一章,即一门单纯的描述性学科。普特南、戴维森和罗蒂对这条自然化道路进行了深刻反思,逐渐形成一种逃离自然主义的趋势,试图恢复知识论的规范维度。然而,直至索萨提出德性知识论之后才发展出一种较为系统的解释框架,它以理智德性和认知视角为核心,能够兼顾知识论的规范性和描述性这两个维度。德性知识论是化解传统知识论与自然科学这场遭遇战的一条可能路径。     

经济型组织人本管理发展的阶段性及其特征论析

以人为本科学发展是当代经济社会发展的指导性方针,又是管理的新趋势.人本管理在经济型组织的管理实践中,沿着由低到高的不同阶段向前发展,从作为方法和手段的人本管理到制度化的人本管理,再到作为哲学形态的人本管理不断演进和发展,并在每个阶段人本管理呈现出不同特征.     

根平方平均的最优凸组合不等式

本文得到最大值α和最小值β,使得对所有的a,b>0,a≠b双向不等式αC(a,b)+(1-α)A(a,b)相似文献