Tracking user-role evolution via topic modeling in community question answering     

Chaogang Fu 《Information processing & management》2019,56(6):102075

Community question answering (CQA) services that enable users to ask and answer questions are popular on the internet. Each user can simultaneously play the roles of asker and answerer. Some work has aimed to model the roles of users for potential applications in CQA. However, the dynamic characteristics of user roles have not been addressed. User roles vary over time. This paper explores user representation by tracking user-role evolution, which could enable several potential applications in CQA, such as question recommendation. We believe this paper is the first to track user-role evolution and investigate its influence on the performance of question recommendation in CQA. Moreover, we propose a time-aware role model (TRM) to effectively track user-role evolution. With different independence assumptions, two variants of TRM are developed. Finally, we present the TRM-based approach to question recommendation, which provides a mechanism to naturally integrate the user-role evolution with content relevance between the answerer and the question into a unified probabilistic framework. Experiments using real-world data from Stack Overflow show that (1) the TRM is valid for tracking user-role evolution, and (2) compared with baselines utilizing role based methods, our TRM-based approach consistently and significantly improves the performance of question recommendation. Hence, our approach could enable several potential applications in CQA.  相似文献   

The balancing act of social enterprise: An IT emergence perspective     

《International Journal of Information Management》2021

The significance of IT in the context of non-digital social enterprises (SEs) and its influence on the viability of such SEs have been less studied themes in information systems research. In the era of ubiquitous IT, SEs have increasing pressures to cope with the ever-dynamic technological domain while balancing their dual objectives. Data from a single revelatory case of Jaipur Rugs (JR), an SE situated in a developing country context (India), is used to fathom the peculiarities of the SE context with a focus on the sociomaterial phenomena of IT emergence. Using the three fundamental notions of sociomateriality theory (relationality, performativity, and practice) this interpretive study understands the mechanisms underlying the SE’s attempt to balance its financial and social sustainability objectives. Through the innovative use of IT, the SE establishes and maintains shared value, yielding stability and efficiency to the business (financial viability) while simultaneously ensuring scalability and effectiveness of their social impact. This study strengthens the perspective of IT as an emergent phenomenon situated in sociomaterial practices and fills a gap in organizational literature by examining such phenomenon in the rich context of SEs where achieving the balance between dual goals is increasingly dependent on non-human (IT) agents.  相似文献   

对我国企业体育目前的现状、不足和发展趋势的研究   总被引：4，自引：0，他引：4  

郝小刚 《南京体育学院学报(社会科学版)》2003,17(2):44-45,30

通过分析我国目前企业体育在市场经济制度下存在的不足 ,找出原因。借鉴国外企业体育的发展过程 ,从而得知职工体育俱乐部是我国企业体育的必然发展趋势。  相似文献   

论体育赞助对赞助企业的影响   总被引：4，自引：0，他引：4  

李国岳 《广州体育学院学报》2003,23(5):23-24

体育赞助对体育和赞助企业来说是一种双赢的活动。本旨在通过分析体育赞助对赞助企业带来的积极影响，为体育赞助提供一定的理论依据。  相似文献   

多媒体在武术难度动作创新中的实用性研究     

马云慧  张天祥 《搏击·武术科学》2005,2(9):38-39

运用多媒体技术辅助教练员和运动员创编竞技武术套路高质量难新动作,辅助运动员加快完成目标动作的定型过程,对创新难度动作在训练中出现的问题进行及时的目标反馈、重构和完善,提高了创编的效率,减少了运动员在创新难度动作的探索阶段中不必要的损伤。  相似文献   

山西省民营企业开展群众性体育活动的现状与发展对策研究   总被引：8，自引：0，他引：8  

冯青山  赵岷  李翠霞 《中国体育科技》2004,40(5):53-55

采用文献调研、问卷调查等方法,对山西省民营企业开展群众性体育活动的现状和发展趋势进行调查研究。结果显示,企业职工对参加体育活动的重要性认识不足,锻炼自觉性不高,体育消费意识薄弱;企业领导对全民健身的认识滞后,体育经费投入较少,体育设施和场地建设不足。据此,提出了相应的对策与建议。  相似文献   

我国近代学校体育思想流变及大学体育课程的演进     

张艳华  陆宗芳 《北京体育大学学报》2004,27(10):1378-1380

通过对中国学校体育思想流变的梳理,把握中国学校体育发展的基本脉络;通过考察与近代中国变革几乎同时而生的大学体育课程的演进过程,反观学校体育思想对人才教育和培养的影响.进而从历史的角度,探寻中国学校体育思想的源与流,以及对学校体育发展的作用与局限,为研究中国学校体育未来的发展提供基础和参照.  相似文献   

广州市体育用品生产企业品牌培育的研究   总被引：2，自引：0，他引：2  

张三梅  谭建湘 《沈阳体育学院学报》2004,23(5):667-669

随着全球化的进一步发展,品牌已成为打败竞争对手的强有力武器。广州市体育用品生产企业只有致力于品牌培育,才能得到更大的发展。采用文献资料法、访谈法、问卷调查法等方法对广州市体育用品生产企业的品牌发展状况、品牌培育中存在的问题、培育品牌的对策等方面的问题进行探讨,旨在为广州市体育用品生产企业打造品牌、科学决策提供一些参考依据。  相似文献   

关于产权理论与国有企业产权改革问题的思考   总被引：1，自引：0，他引：1  

何斌 《广东技术师范学院学报》2004,(1):48-50

要深化国有企业改革必须建立现代企业制度 ,这种企业制度的产权关系是明确的 ,只有建立归属清晰、权责明确、保护严格、流转顺畅的现代产权制度 ,才是国有企业改革的出路。  相似文献   

肌肉功能与衰老     

王鸿翔 《湖北体育科技》2004,23(3):311-313

肌肉功能的退化是生命衰老的一种表现，是体内多种生命过程变化的结果。除了肌肉本身的老化以外，神经中枢的活动特点，激素的分泌特征和身体的行为改变都可能影响肌肉功能的退化。大量实验结果显示，运动训练可以保持老年人的肌肉功能和延缓其退化。  相似文献