一种基于微波雷达回波信号的车型分类方法

车辆类型识别方法是智能交通系统的关键技术之一。利用深度学习的高维特征泛化学习能力,将改进的LeNet-5卷积神经网络用于基于交通微波雷达的大小车型分类识别。首先,以雷达触发前的N帧信号为基础,对雷达的回波信号进行分析并构建数据集;然后,分析LeNet-5卷积神经网络的特点;最后提出一种改进的LeNet-5卷积神经网络。实验结果表明,与传统的支持向量机方法相比,所提方法能够智能学习大小车的雷达时频信号特征,大小车型识别准确率达到97%以上,可为交通场景下的车型识别研究提供新的技术途径。     

Learning, monetary policy rules, and macroeconomic stability

Several papers have documented a regime switch in US monetary policy from ‘passive’ and destabilizing in the pre-1979 period to ‘active’ and stabilizing afterwards. These studies typically work with DSGE models with rational expectations.This paper relaxes the assumption of rational expectations and allows for learning instead. Economic agents form expectations from simple models and update the parameters through constant-gain learning. In this setting, the paper aims to test whether monetary policy may have been a source of macroeconomic instability in the 1970s by inducing unstable learning dynamics.The model is estimated by Bayesian methods. The constant-gain coefficient is jointly estimated with the structural and policy parameters in the system.The results show that monetary policy was respecting the Taylor principle also in the pre-1979 period and, therefore, did not trigger macroeconomic instability.     

中国情境下案例教学中大学生学习障碍调查

本文针对案例教学中学生参与热情与投入程度不高的现状,以556名本科生为研究对象,采用统计分析的方法,识别出中国情境下案例教学中大学生面临的主要学习障碍及其对不同阶段学习者参与行为产生的影响.在此基础上,基于我国现有本科教育的资源条件约束,从社会文化心理、授课对象差异、案例教学流程等方面提出了克服案例教学中大学生学习障碍、促进参与行为的对策建议,以提高西方案例教学在我国本科课堂中的适用性.     

Using Project-Based Learning （PBL） in Management Accounting Course： Lesson and Reflection From Entrepreneurship Education

One of the main issues in entrepreneurship education is integrating core course to entrepreneurship course. Many educators fail to integrate core course and entrepreneurial education. The purpose of this study is to investigate whether the integration of management accounting course in entrepreneurship course will accomplish the objective of entrepreneurship education. This study is derived from the experience of entrepreneurial project course at Management Department of Ciputra University, Surabaya. This study uses an explorative approach to investigate the implementation of project-based learning （PBL） in management accounting course. The result shows variation of output. There are about 91% business can be implemented by business groups and about 33% target achieved. Several management accounting techniques are used in this study, such as balanced score card （BSC）, activity-based costing （ABC）, activity-based management （ABM）, cost-volume-profit （CVP） analysis, and tactical decision making. This study found that by using management accounting techniques, student can run the business well especially when they have to make decision. This study strengthens the role of management accounting in business practices, and furthermore, this study proves that management accounting is beneficial for entrepreneurs who are still in the start-up business stage.     

社会资本与企业绩效:探索式与利用式学习的中介作用

本文从探索式学习和利用式学习两个视角来研究组织学习,对社会资本通过组织学习作用于企业绩效的机理进行理论分析和实证检验。研究结论表明,组织学习在社会资本和企业绩效之间具有中介作用,其中,外部社会资本有利于探索式学习,而内部社会资本有利于利用式学习;探索式学习有利于提高新产品绩效,利用式学习有利于提高综合绩效,探索式学习与利用式学习之间具有协调和协同效应。     

中外高校机构编制管理的比较及启示

我国高校机构编制管理缺乏有力的外部监督和内部约束;而以美国为代表的国外高校则在“行政-学术”二元权力架构的安排、管理机构的设置、人员编制的分类与控制等方面形成了一整套科学的做法。借鉴其经验,应通过国家或地方行政立法来规范高校机构编制管理,将机构编制管理绩效纳入对高校的考核范围,要在精简机构的同时建立健全高校的学术权力机构,各地教育行政部门也要建立起一套完善的实施监管的技术性程序。     

管理者的社会关系与企业绩效——组织学习的中介作用

一些学者探讨了管理者的社会关系与企业绩效间的微观——宏观联系,但往往以财务绩效表示企业绩效,且缺乏关于管理者的社会关系对企业绩效影响机制的研究。本文基于战略的制度观,通过对企业绩效的细分并引入组织学习这一变量,探讨了管理者的商业关系和政治关系是如何通过组织学习的中介作用对企业的财务绩效和创新绩效产生不同影响的。研究表明,管理者的两类关系都能直接促进财务绩效的提升,且组织学习正向影响创新绩效,但它们对创新绩效的影响效果不同。管理者的商业关系直接正向影响创新绩效,同时也通过正向影响组织学习而间接促进企业创新。管理者的政治关系降低了组织学习并通过其中介作用抑制了企业创新。因此,应区别看待管理者的两类社会关系对企业绩效的影响。     

Learning to Argue with Intermediate Macro Theory: A Semester-Long Team Writing Project

The authors describe their experience with integrating a semester-long economic analysis project into an intermediate macroeconomic theory course. Students work in teams of “economic advisors” to write a series of nested reports that analyze the current state of the economy, and propose and evaluate policies for a decision-maker. The project simulates real-world policy consulting with an emphasis on applying economic theory and models. The authors describe the project setup and how to tailor its theme to current events, explain methods for keeping it manageable in larger classes, discuss student learning outcomes, and document course evaluation results. Besides improving the learning experience, this project prepares economics students to contribute their own views to policy debates and buttress them with tight macroeconomic reasoning.     

关于大学生体育学习心理的培养

大学生的体育学习心理包括体育学习动机、学习兴趣和学习态度,应运用目标与反馈、表扬与批评等方法激发大学生的体育学习动机;通过改进教学方法,更新教学内容等,培养大学生体育学习兴趣;通过加强引导,帮助大学生端正学习态度。     

Venturing into the unknown: Blogs as a means of advancing leadership skills

The author describes a theoretically eclectic exploratory assignment that helped students in a managerial communication class practice and advance a comprehensive range of leadership skills. Specifically, the author combined E. M. Eisenberg, L. H. Goodall, and A. Tretheway's (2014) model of leadership with pertinent concepts from the theory of learning and used blogs as the communication medium. The outcome was very positive. Students practiced and advanced a range of cognitive, ethical, and communication skills.