基于CNN-BiLSTM融合多头自注意力机制的电商评价情感分析探究

针对传统单一的基于机器学习的情感分析方法在特征提取以及语义理解方面效果不尽如人意的问题。构建一种基于CNN-BiLSTM融合多头自注意力机制的电商评价情感分析模型,能够更好地处理文本中的长距离依赖关系和捕捉情感信息的语义关系,从而提高模型的鲁棒性和泛化能力,进而提高商家对消费者评论的情感理解和评价准确性。基于一个中文电商公开数据集对模型进行了实验,并将其与其他模型进行了比较。实验结果表明,该模型的精确度、准确度、召回率和F1值等指标均优于其他模型。     

Managerial incentives and corporate leverage: evidence from the United Kingdom

This paper investigates the effect of managerial incentives and corporate governance on capital structure using a large sample of UK firms during the period 1999–2004. The analysis revolves around the view that managerial incentives are important in determining a firm's leverage. However, we argue that the exact impact of these incentives on leverage is likely to be determined by firm‐specific governance characteristics. To conduct our investigation, we construct a simple corporate governance measure using detailed ownership and governance information. We present evidence of a significant non‐monotonic relationship between executive ownership and leverage. There is also strong evidence suggesting that corporate governance practices have a significant impact on leverage. More importantly, the results reveal that the nature of the relation between executive ownership and leverage depends on the firm's corporate governance structure.     

Setting Efficient Incentives for Agricultural Research: Lessons from Principal-Agent Theory

A conceptual analysis of important issues in the organization and management of academic research is presented. Principal-agent theory is applied to derive optimal compensation schemes for scientists when they differ in ability, risk aversion, cost of effort, and reservation utility, and to show the optimal trade-off between institutional risk and scientists' abilities. Implications for an efficient organization of research are derived, including how scientists' incentives should be structured to elicit optimal research efforts and direction, whether research direction should be centralized or decentralized, and whether the organization of research should be through external competitive grants or program and institutional funding.     

Business returns from gold price fixing and bullion trading on the interwar London market

From September 1919, the world price of gold was ‘fixed’ daily in London by a small group of licensed traders. The arrangement was not ideal, as it advantaged the traders concerned, but it was seen by the Bank of England at the time as critical to British economy recovery and to the maintenance of London’s position as a world trading centre. This article examines the available archival evidence on whether direct knowledge of the workings of the mechanism enabled Mocatta and Goldsmid, traders central to the operations of the ‘gold fix’, to earn unusually high profits across the interwar period.     

高校中的学院机关工作态度和工作效能评价方法的探讨

高校要加强和改进学院机关作风建设、提高机关整体工作水平,展现良好的精神风貌,必须科学合理的评价学院机关工作态度和工作效能,本文探讨一种评价方法以及这种方法对人事部门制定相应监督机制的指导作用。     

高校行政人员专业化研究

行政人员是科学管理高校的重要力量之一,高校管理队伍的重要作用不容忽视。我国高校必须尽快适应全球一体化带来的国际间高等教育资源的竞争,行政管理水平对高校的发展起着至关重要的作用。高校的科学管理正在迅速发展,高等教育管理研究也展现出独特的活力,开展高校行政管理专业化的研究具有重要的现实意义。     

组织员工心理契约修复模型——心理契约违背的延伸

在组织员工心理契约违背发展模型的基础上,从心理契约的形成、契约破裂源、契约破裂和契约违背几个节点出发对心理契约的违背过程进行研究,构造出心理契约修复模型,提出心理契约的修复机制和修复机理。文章给出要提高组织心理契约的激励效能必须减少破裂源发生频次、提高组织对破裂源的敏感性、构建破裂源预警机制以及提高员工自我修复和组织修复能力的管理结论。     

组织员工心理契约修复模望——心理契约违背的延伸

在组织员工心理契约违背发展模型的基础上,从心理契约的形成、契约破裂源、契约破裂和契约违背几个节点出发对心理契约的违背过程进行研究,构造出心理契约修复模型,提出心理契约的修复机制和修复机理。文章给出要提高组织心理契约的激励效能必须减少破裂源发生频次、提高组织对破裂源的敏感性、构建破裂源预警机制以及提高员工自我修复和组织修复能力的管理结论。     

大股东控制对现金持有影响的研究——基于我国上市公司的实证数据

从现金持有理论和股东控制权理论出发,以2002～2006年沪深两市526家上市公司为研究对象,通过对大股东控制权进行可靠的度量,建立了实证分析模型,研究了大股东控制及其约束机制对我国上市公司现金持有的影响。研究结果表明:大股东控制并不是导致我国上市公司高额现金持有的直接原因,大股东控制度较高的上市公司反而会持有较少的现金;股东之间的制约能够有效地减少上市公司的现金持有量。     

互联网渠道类型与管理机制研究

文章在回顾理论研究的基础上,以Appcom公司为典型企业,探讨了互联网渠道的类型、特征及如何有效管理互联网渠道。案例分析表明：互联网渠道包括了直接和间接两种类型,各自具有不同的特征。企业在管理互联网渠道时,一方面可以借鉴原有实体渠道中的管理方式,另一方面需要协调好企业内部各职能部门间、与第三方电子商务平台以及经销商等相关利益者间的关系,并解决互联网渠道与实体渠道间的冲突。文章的研究结论对于试图或者正在尝试互联网渠道的传统企业具有显著的指导意义,同时也拓展了现有的渠道理论研究。