基于专利技术关联度的中间人角色划分方法研究

基于专利数据构建的发明人合作网络有助于分析发明人中间人角色，揭示发明人创新合作规律，对于企业研发人才管理和知识管理具有重要指导意义。群体划分是中间人角色划分的一个关键步骤，以往文献大多基于网络结构或者给定网络边界进行群体划分，忽视了专利发明人的知识交流环境和特征。鉴于此，基于专利技术关联度，利用专利著录项中的IPC分类号信息判断企业发明人所属技术知识领域，再以技术知识领域为边界设计一套算法，将发明人归入互斥子群，最终对中间人角色进行高效划分，寒武纪公司数据验证了中间人角色划分算法具有较高的准确性和有效性。     

Hosts’ online affinities and their impacts on the number of online reviews on peer-to-peer platforms

Different from traditional hotels, hosts' affinity is an essential feature of homestays. This study uncovers how Airbnb hosts demonstrate their affinity online through the data from 114,310 listings, and examines the relationship between hosts' affinity and the number of reviews, as well as the moderating role of hosts' affinity in the associations among sub-ratings, host listings count, and the number of reviews. The findings indicate a positive link between hosts' affinity and the number of reviews. Guests tend to assign higher overall scores to homestays with poor performance but high affinity, and may alter their homestay attribute requirements in future reservation decisions. Hosts' affinity from guest reviews has greater direct and moderating effects on the number of reviews than hosts' self-statements. Interestingly, hosts' affinity from guest reviews can reduce the guests' requirements for homestay attributes of multiple listings. Meanwhile, hosts’ affinity displayed by host self-statements exhibits the opposite moderating effects.     

Facial expressions of beneficiaries and donation intentions of potential donors: Effects of the number of beneficiaries in charity advertising

To increase the donation intentions of potential donors, many charities include pictures of beneficiaries in their ads, but there have been no consistent findings on how to effectively use features such as the facial expressions of beneficiaries. This study found that there was an interaction effect between facial expressions and the number of beneficiaries that influenced donation intentions. When charity ads used sad-faced beneficiaries, displaying a single beneficiary more effectively increased donation intentions than displaying multiple beneficiaries. However, when charity ads included happy-faced beneficiaries, displaying multiple beneficiaries was more effective than displaying a single beneficiary. Furthermore, the interaction effect between facial expressions and the number of beneficiaries was mediated by the perceived efficacy of a donation. In addition, this study found that for charity ads that used happy-faced beneficiaries, the relationship between the number of beneficiaries and donation intentions presented an inverted U-shaped.