Social network data to alleviate cold-start in recommender system: A systematic review

Recommender Systems are currently highly relevant for helping users deal with the information overload they suffer from the large volume of data on the web, and automatically suggest the most appropriate items that meet users needs. However, in cases in which a user is new to Recommender System, the system cannot recommend items that are relevant to her/him because of lack of previous information about the user and/or the user-item rating history that helps to determine the users preferences. This problem is known as cold-start, which remains open because it does not have a final solution. Social networks have been employed as a good source of information to determine users preferences to mitigate the cold-start problem. This paper presents the results of a Systematic Literature Review on Collaborative Filtering-based Recommender System that uses social network data to mitigate the cold-start problem. This Systematic Literature Review compiled the papers published between 2011–2017, to select the most recent studies in the area. Each selected paper was evaluated and classified according to the depth which social networks used to mitigate the cold-start problem. The final results show that there are several publications that use the information of the social networks within the Recommender System; however, few research papers currently use this data to mitigate the cold-start problem.     

认知视角的科学基金项目专家评议意见分析——基于ER规则的研究

科学基金专家评议意见的可解释性会影响项目资助合理性以及项目申请者对评议意见的理解。项目评议时,专家先根据评议要点对项目的科学意义和应用前景等属性进行评价,得出综合意见;科学基金再合成多位专家意见,得出项目评议结论。在此过程中,专家属性意见与综合意见的一致性和专家间的非共识意见是影响专家意见可解释性的主要问题。上述问题可从认知视角分析其影响因素,并利用ER规则量化影响因素、合成专家意见。通过分析量化可界定专家属性意见的一致性权重关系,判断意见是否一致;而专家间的非共识意见也可因此分为"因属性评价意见不同、权重不同或专家意见不一致造成的非共识";最后依据科学基金专家评议的真实信息验证了方法的适用性。     

The CSR green halo effect on the corporate–public communication: an experimental study

Environmental corporate social responsibility (CSR) has been a popular practice among corporations. However, the mechanism and effectiveness of environmental CSR in affecting corporate–public communication are still unclear. Against the theoretical backdrop of the ‘halo effect’ and through a controlled experiment with 742 participants from Hong Kong and mainland China, we find that: if a company’s environmental CSR activity receives higher support from the consumers, it is less likely for consumers to avoid advertisements endorsed by the company. The CSR green halo effect therefore exists. Moreover, consumers’ nationality and their three preexisting attitudes (general environmental CSR support, environmental beliefs, and favorability of products’ country of origin) are important moderators of the green halo effect and need to be considered in practice.     

网球专项体能训练研究的综述

运用文献资料法和逻辑分析法对近十年网球体能训练理论相关论文进行综述,结果发现,中国网球体能训练理论研究起步较晚,取得科研立项的较少;网球相关体能训练论文虽多,但整体科研质量有待提高;目前的体能训练研究多集中在身体形态、技能和素质方面,对网球体能指标体系、体能训练结构模型及体能水平的评价研究尚不多见。因此,体能训练要加大安排体能训练的比例,根据网球专项特征科学实施理论素质、速度素质和耐力素质训练;混合供能训练并根据赛制特点进行以赛促练。     

网络舆情监控系统中的主题帖自动标引及情感倾向分析研究

本研究以逸仙时空BBS为舆情信息源,对需要关注的帖子进行情感倾向性分析的探索性研究,设计了主题帖自动标引和情感倾向性分析策略,并对主题帖自动标引结果、倾向性人工判断与自动分析的结果进行对比。     

Training engaged student employees: A small college library experience

Student employees are often the first people patrons contact when they enter an academic library, and thus their knowledge level and service skills are crucial to academic library success. This article presents a case study of the job-related knowledge and customer service skills of undergraduate student employees in a small liberal arts college after the implementation of a training program more focused on patron service. Both successes and failures are discussed.     

我国新农村建设进程中农村体育发展的社会学审视

采用文献资料、调查研究及专家访谈等研究方法对我国新农村建设进程中体育发展的有关社会学因素进行了探讨。研究认为:生产方式的转型是农村体育发展的根本条件;生活方式的转变是农村体育持续发展的关键;现代体育文化的培养是农村体育发展的深层动力;体育组织的建构是农村体育发展的保障。     

三晋球迷“闹他”文化现象研究

采用文献资料法,逻辑分析法,选取三晋大地一支独特的“闹他”球迷队伍为对象,对三晋这支魔鬼般的球迷队伍进行研究,解答不为人所熟知的三晋球迷“闹他”现象背后的文化特征。     

Proactive and Prudent: A Report of a Holistic Cyclical Electronic Resources Review Pilot at the University of Tennessee at Chattanooga

In 2016, The University of Tennessee at Chattanooga Library piloted a cyclical review process for five academic departments. The goal was to go beyond the traditional library portion of a department’s accreditation/program review and holistically assess electronic resources for these departments and provide recommendations for changes when necessary. This article describes the need for this kind of review, the process used to review Engineering and Computer Science resources, suggestions and decisions made as a result of the review, reflections on the experience, and hopes for the future.