温室智能控制关键技术研究动向

温室环境智能控制系统将成为现代农业发展的重要手段和措施,因而建立基于作物生长模型、温室综合环境预测分析模型和栽培专家系统知识库,温室环境复杂系统的建模与专家决策支持系统研究,温室环境智能控制系统技术研究与系统开发等将成为今后主要研究内容。     

机载环境下的语音端点检测

由于传统的语音端点检测方法仅以信号的短时能量、过零率等简单的单一特征作为判决特征参数,这些方法在实际应用中,很多都无法满足系统的需要。针对机载环境下的带噪语音进行研究,在传统方法的基础上作了两点改进:把短时能量和过零率结合为一个特征即短时能零积,并把其和短时自相关函数结合起来作为端点检测的特征参数。对于短时自相关的门限,不是利用传统的主副峰比值,而是利用达到副峰的时间间隔作为判决门限。通过对不同信噪比的机载环境下的带噪语音进行试验仿真,发现这种方法比单一的特征参数更有优越性,效果更明显。     

A Comparison of Models Describing the Impact of Moral Decision Making on Investment Decisions

As moral decision making in financial markets incorporates moral considerations into investment decisions, some rational decision theorists argue that moral considerations would introduce inefficiency to investment decisions. However, market demand for socially responsible investment is increasing, suggesting that investment decisions are influenced by both financial and moral considerations. Several models can be applied to explain moral behavior. We test the suitability of (a) multiple attribute utility theory (MAUT), (b) theory of planned behavior, and (c) issue-contingent model of ethical decision making in organizations. In an experimental setting, 141 participants traded company shares in a computerized asset market. Over 12 periods, companies varied in morality (i.e., treatment of employees) and in profitability (i.e., expected dividends per share). Participants’ bids and asks for shares were recorded. Results indicate that moral considerations influence investment decisions, controlling for profit. Differences between the three models are discussed.     

餐饮业核心竞争力分析——以杭州为例

随着经济全球化和经济一体化的发展,市场竞争呈现出明显的国际化趋势,企业面临的环境更为严峻。文章界定了核心竞争力、企业核心竞争力概念,以杭州为例,对餐饮业核心竞争力的构成要素进行了总体评价分析,从餐饮业战略决策能力、餐饮业技术开发能力和餐饮业营销方式能力三个方面,提出了餐饮业提升核心竞争力对策建议。     

事先财务和股权因素对我国制造业上市公司多元化决策的影响

我国制造业上市公司是否选择多元化受到事先财务和股权特征的影响。事先营运能力越弱,自由现金流量越少的企业越可能选择多元化,其对企业选择多元化概率的边际影响在5%~6%之间;第一大股东持股比例越高的企业越不可能选择多元化,其边际影响约在4%~7%之间。     

The contrasting interaction effects of improvisational behavior with entrepreneurial self-efficacy on new venture performance and entrepreneur work satisfaction

Although improvisation is often considered to be an elemental component of entrepreneurship, little work has been done to evaluate factors that influence the relationship of entrepreneur improvisational behavior with important outcome variables. In an attempt to partly fill this gap, the current study examines the moderating effect of entrepreneurial self-efficacy on the relationship of founders' improvisational behavior with both the performance of their startups and their individual level of work satisfaction using a national (United States) random sample of 159 entrepreneurs. In alignment with our predictions, improvisational behavior was found to have a positive relationship with new venture performance (i.e., sales growth) when exhibited by founders who were high in entrepreneurial self-efficacy, whereas improvisational behavior was found to have a negative relationship with new venture performance when exhibited by founders who were low in entrepreneurial self-efficacy. Contrary to our expectations, entrepreneurial self-efficacy was found to have a negative moderating effect on the relationship between entrepreneur improvisational behavior and work satisfaction.     

基于浙商公司战略的项目组合决策模型研究——以浙江传化集团为例

战略管理决定公司的前进方向,而项目管理则是方法.许多企业决策效率低下的一个重要原因,就是项目实施与战略不匹配,且缺乏组织保障.现代企业竞争表明"战略是通过项目来实现的,而每个项目都应和组织的战略有明确的联系."[1]随着市场竞争的集成化和体系化,部分浙商原先存在的决策的随机性和执行的随意性问题亟需扬弃.因此,如何将企业的战略管理与项目管理有机集成,有效解决战略规划和项目管理不能"联网"的问题,将成为浙商重要的决策选项.建立两者的互动机制,有助于减少浙商决策的随意性,提升决策效率和组织智能,帮助浙商决策管理走向科学化规范化.本文以传化集团多元化决策及其有效执行为例,分析了浙商的决策行为及其变化过程.     

虚拟组织项目后评估体系研究

进行虚拟组织项目后评估,从根本上来说是为了提高虚拟组织的决策和管理的科学性。结合虚拟组织项目后评估的作用、特点,构建了虚拟组织项目后评估体系,综合运用层次分析法和模糊综合评价法进行研究,并使评价结果定量化。     

决策树分类法中ID3算法在航空市场客户价值细分中的应用

针对当前航空企业的实际需求,运用数据挖掘理论中的ID3分类算法,对在机场候机旅客调研数据进行分析,可以了解到在后期航空公司发展高端客户过程中,营销策略应该关注的重点客户群体,应该是本公司现有的和未来的常旅客这个客户群,而其中交通方式为小型轿车的常旅客又是营销策略的重中之重。     

基于双灰的多属性决策及在广告媒体代理商选择中的应用

研究决策过程中评价指标权重为区间权重和评价指标值为区间数的双灰问题集结方法。针对决策者构造决策信息的判断习惯,定义拟正态分布对区间判断信息进行拟合。根据对标准正态分布的研究,提出在一定置信度下,基于拟正态分布的假设,区间数乘法的主要信息测度公式,以此解决传统区间数乘法区间范围快速膨胀和区间重心漂移问题。以案例分析某汽车公司寻求长期合作广告媒体代理商的需求,为其选出满意的合作伙伴。