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   

少数民族传统体育的基本成因及其特点     

马兴胜 《首都体育学院学报》2003,15(2):104-107

我国是一个多民族国家，各民族在历史的长河中，创造了灿烂的文化，而民族传统体育的产生是其传统文化的代表，渗透着民族历史发展的痕迹，它的发展也反映了各民族在自身的民族发展与壮大。本文就民族传统体育的历史演变过程及其特点进行分析，阐述了民族传统体育的基本内涵及所表达的美学价值，为民族传统体育的发展提供必要的参考。  相似文献   

国内企业知识管理研究综述   总被引：11，自引：0，他引：11  

孙立立 《津图学刊》2003,(6):47-52

随着信息化和知识经济的到来，知识管理应运而生并成为组织竞争及生存的主要措施。为了将现有的知识管理水平推向更高的层次，总结企业知识管理的研究现状并对其进行展望很有必要。本文运用统计、比较方法对相关著作和论文进行了统计研究，并对研究中的重点问题及相关成果作了分析总结。  相似文献   

吴文化与苏州学习型组织     

韩承敏 《苏州市职业大学学报》2003,14(3):15-16

本试图通过分析学习型组织开发与地域化——吴化的必然联系，思考探索重塑传统化，寻求开发苏州学习型组织的有效方法。  相似文献   

蹼泳竞赛成绩管理系统研究     

郑伟涛  彭鹏  王飞 《武汉体育学院学报》1996,(4)

本文采用ＦＯＸＢＡＳＥ２．０进行编程，通过对蹼泳比赛“千分表”的研究，研制了一套适合于蹼泳竞赛的中、英文成绩管理系统。该系统操作简单，速度快，已成功地应用于１９９５年全国蹼泳锦标赛和第四届亚洲蹼泳锦标赛，大大地减轻了裁判员的劳动强度，加快了记录编排的速度。同时该系统易于维护，能很方便地推广到其它比赛项目的成绩管理。  相似文献   

民营企业发展所遇瓶颈分析     

卜苏华 《九江职业技术学院学报》2005,(2):51-53

目前我国民营企业在发展道路上不断上演着“创立、崛起、衰败”的三部曲，针对民营企业发展所遇瓶颈问题从五个方面加以分析，从而说明中国民营企业只有突破瓶颈才能走向成熟。  相似文献   

陇右文化及其学科构建     

雍际春  余粮才  于志远  刘雁翔 《天水师范学院学报》2006,26(3):75-78

陇右地区是中华文明的重要发祥地之一,历史文化底蕴深厚,孕育了富有地域特色的陇右文化。陇右文化对于继承中国传统文化、培育民族精神、构建和谐社会和建设社会主义新农村有积极意义。站在学科建设的高度,从学科体系、学科队伍、课程建设和学术研究四个方面建设陇右文化有很重要的意义。  相似文献   

E-journal databases: a long-term solution?     

Nathalie Schulz   《Library Collections, Acquisitions, and Technical Services》2001,25(4):347

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Role Development in the Managed Care Era: A Case of Hospital-Based Nursing     

Julie Apker 《Journal of Applied Communication Research》2001,29(2):117-136

Managed care poses numerous opportunities and challenges for today's health care organizations and their employees. This article investigates the ways that hospital nurses develop and make sense of their professional roles and organizational environments in a changing and often uncertain managed care setting. The case study approach used in this research combined qualitative methodologies to gain a rich, detailed, and contextual understanding of nurses' work roles and organizational experiences. After an analysis of interviews with 24 nurses and observations of nurses' communicative activities on one inpatient unit, the complexity of sensemaking and role development in a managed care environment is considered. Conclusions are then drawn regarding the theoretical and pragmatic implications of nurses' communicative processes, as they attempted to develop and understand their roles in a changing organizational context.  相似文献   

论大学公共英语写作教学的优化策略     

张霞 《黄冈职业技术学院学报》2004,6(2):92-94,82

针对四级考试的写作的命题趋势和社会对实用型英语人才的需求,本文试图通过分析英语教学中的四大症结,从教学管理和教学实施两个层面探讨写作教学的增效问题,提出了教学管理和教学实施中实现学习环境和教学效果优化的具体措施。  相似文献