为提高安检人员的视觉搜索绩效,降低漏检率,以16名机场安检人员和15名安检专业在校大学生为被试,基于Apriori算法,分析安检人员的经验水平、违禁品种类、遮盖程度、摆放角度、物品复杂程度以及物品凌乱程度等因素与安检绩效间的关联规则。结果表明:当安检人员缺乏经验、包内摆放的物品凌乱程度大且有其他物品遮盖违禁品时,他们最可能做出错误判断;在包内摆放的物品凌乱程度大、有其他物品遮盖违禁品的条件下,与错误判断构成的关联规则适用性最高;当包内摆放的物品凌乱程度小时,安检人员最可能做出正确判断;当安检人员有经验时,与正确判断构成的关联规则适用性最高。In order to improve the visual search performance of security personnel and reduce the missed detection rate, 16 airport security personnel and 15 college students majoring in security inspection were selected as subjects. Based on Apriori algorithm, the association rules between the experience level of security personnel, the type of contraband, the degree of coverage, the angle of placement, the complexity of items and the degree of disorder of items and the performance of security inspection were analyzed. The results show that when security personnel are inexperienced, the items in the bag are messy and there are other items to cover the contraband, they are most likely to make wrong judgments;under the condition that the items placed in the package are messy and other items cover the contraband, the association rules formed with the wrong judgment have the highest applicability;when the items placed in the bag are in a low degree of disorder, the security personnel are most likely to make a correct judgment;when the security personnel have experience, the association rules formed with correct judgment have the highest applicability.
绿色基金对推进经济结构转型,助力绿色经济发展有着重要的作用。本文基于2018年1月至2023年12月的10只股票型、偏股混合型绿色基金作为研究对象,使用Fama-French三因子模型和T-M模型,对绿色基金绩效的影响因素进行实证分析。实证结果表明:三因子模型可以较好解释基金绩效影响因素,绿色基金与市场因子、账面市值比因子以及规模因子均具有显著的关系,更偏向于价值股和小盘股。基金经理一般都具有选股能力,而在择时能力表现上呈现出一定的差异性,大部分具有择时能力。基于研究结论,对投资者和基金经理提出建议。Green funds play an important role in promoting economic structural transformation and supporting the development of green economy. This article is based on 10 equity and equity mixed green funds from January 2018 to December 2023 as research objects, and uses the Fama-French three-factor model and T-M model to empirically analyze the factors affecting the performance of green funds. The empirical results show that the three-factor model can better explain the factors affecting fund performance. Green funds have significant relationships with market factors, book to market ratio factors, and size factors, and are more inclined towards value stocks and small cap stocks. Fund managers generally have stock selection ability, but their performance in timing ability shows certain differences, with most having timing ability. Based on the research findings, it provides recommendations for investors and fund managers.