Core and supplemental elements of hospitality in the sharing economy: Insights from semantic and tonal cues in Airbnb property listings

Advances in peer-to-peer sharing, made popular by platforms like Airbnb, have altered previous conceptualizations of the lodging hospitality product. This study performs semantic and tonal analyses on a large-scale dataset collected from Airbnb. Our results support a concept of lodging hospitality that comprises core products and services, supplemental customer care, and a third factor we term ‘host sharing.’ Furthermore, the study offers insight into the topics and rhetorical tactics currently defining lodging hospitality marketing on the Airbnb platform. These findings can be used to provide guidance for Airbnb hosts to provide suitable information in their listings.     

我国人工智能政策文本量化研究——政策现状与前沿趋势

以我国公布的30份人工智能政策文本为样本，基于政策工具和PMC政策评价模型，采用文本挖掘及内容分析法，对我国当前人工智能政策文本进行量化分析。结果发现，我国人工智能政策中的需求型政策工具需进一步加强，环境型政策工具结构有待调整；通过对处于不同评价等级、针对不同产业发展政策文本的PMC指数进行比较，识别出影响我国人工智能政策文本评价等级的具体变量。最后，结合我国人工智能研究前沿趋势分析，探寻未来政策制定方向，为后续人工智能政策的制定和修改提供具体、可操作性建议。     

浅析数据挖掘在就业管理信息系统中的应用

高校扩招带来大学生数量大幅度增加,学生管理信息系统数据海量扩充,为了有效地利用和开发这庞大的数据信息库,提取潜在有用的信息和知识,笔者运用数据挖掘技术针对一家用人单位录用学生的数据信息展开分析,采用关联规则挖掘算法,寻找大量数据中项集之间的关联,得出关联规则,帮助学校有针对性地开展学生就业指导工作,为决策者提供理论依据。     

面向AFH客户分类主题的数据仓库的构建

近年来,随着客户关系管理（CRM）在商业运作中的巨大成功,其管理理念及价值被越来越多的企业所重视。在电子商务环境下,一对一营销正在受到企业的青睐。以客户为中心的思想,要求企业要能够有效地获取客户的各种信息,识别客户与企业之间的关系。文章在分析数据仓库特点的基础上,以客户平均购买额（A）、购买频率（F）和客户保持时间（H）作为客户价值细分变量,实例化构建了某食品连锁销售企业面向AFH客户分类主题的数据仓库。应用结果表明,新的AFH客户分类模型具有很强的表征性,能充分反映客户的当前价值（贡献度）和增值潜力（忠诚度）,能为企业提供有效的决策支持信息。     

浅谈银行承兑汇票拆分业务及账务处理

阐述了票据拆分业务的内涵和性质,与传统的承兑汇票融资业务做了比较分析,针对其账务处理和信息披露进行了讨论并以实例说明。     

基于流数据挖掘的网络流量异常检测及分析研究

网络流量异常检测及分析是网络及安全管理领域的重要研究内容。本文探讨了网络流量异常的种类、网络流量异常检测的方法,分析了基于传统检测方法在网络流量异常检测应用中存在的问题。并重点对基于流数据模型的网络流量异常检测进行了研究,综述了已有流数据挖掘研究方法在网络流量异常检测中的研究进展。最后,本文对现有研究工作存在的问题及未来的研究方向进行了探讨。     

Public policy and venture capital: Pursuing the disclosure goal

Using a sample of US firms that went public between 2000 and 2011, we conduct a textual analysis of 10-K filings to jointly evaluate the impact of the Sarbanes-Oxley Act and venture capital (VC) on the disclosure practices of both VC- and non-VC-backed IPOs. We find that the annual reports of VC-backed IPOs are much more readable than the annual reports of their peers. This finding suggests that VCs introduce more clarity into financial reporting to improve the reaction in the firm market price to create value and feed their own reputation. On the contrary, we find that the Sarbanes-Oxley Act forces firms to produce longer 10-Ks consistent with the aim of the reform (Title IV) to enhance financial disclosures. In turn, this ends up to negatively impact on the readability.     

Simulating mining policies in developing countries: The case of Colombia

Mining represents an important economic sector in almost all countries, especially the developing ones. The planning in this area is complex due to the interaction between different aspects like economic factors, environmental and social issues, and government regulation. A tool for policy analysis is needed to understand and test the effects of new and existing policies and avoid unanticipated side effects. The article develops a generic model for analyzing the mining sector of a country and demonstrates how it can be calibrated to test a set of alternative scenarios for the future of mining in Colombia.     

The evolution of the telecommunications policy agenda: Forty years of articles in Telecommunications Policy

This paper investigates the evolution of the telecommunications policy agenda by means of text mining forty years –from 1976 to 2016– of papers in the journal Telecommunications Policy. Text mining techniques help identify the key topics, the dominant combinations of concepts and the main areas of research within this multidisciplinary –technical, economic, social, policy– discipline. In addition they depict an evolution of the policy agenda more nuanced than the conventional public service, pre-competition and post-liberalisation stages typical of telecommunications. Also, in combination with bibliometric information, the results display the relationships between areas of research and methodologies, countries and authors’ background, all together providing a deeper understanding of the past, present and future avenues for research in telecommunications policy.