基于车辆数据的k近邻联合概率数据关联算法

在交通场景中采用一些预警措施能够有效地减少交通事故发生。例如,对车辆轨迹进行跟踪并预测车辆的驾驶行为,就是一个常用的预警方法。在对车辆进行跟踪的过程中,数据关联是很重要的部分,它可以对车辆的观测点和轨迹进行关联,从而更新车辆的轨迹,完成跟踪过程。在此背景下,提出了一种新的数据关联算法,即k近邻联合概率数据关联算法(k Nearest Neighbor-Joint Probability Data Association,kNN-JPDA)。实验结果表明,该算法能够较好地解决在交通场景下车辆数据的数据关联问题,在精度以及运行效率方面都有所提高。     

“互联网+”与消费品制造企业转型——基于架构创新的视角

通过研究架构理论,分析了消费品制造企业在互联网+背景下的架构创新。提出变换外围要素、核心要素相同的二阶中性置换可以形成两种不同的消费品制造企业架构创新模式。经过改进的双层技术接受模型检验,两种模式的结果殊途同归,预测两种模式结合的双层架构创新模式会成为未来新型消费品制造企业架构创新的主流。     

常州装备制造业与生产性服务业动态匹配优化路径研究

装备制造业与生产性服务业动态匹配是二者之间密切互动的表现,也是二者协同发展互动升级的重要手段。通过对常州装备制造业与生产性服务业发展现状、动态匹配中存在的问题进行梳理和分析,进而从装备制造业与生产性服务业发展的中间组织的培育与促进、市场环境营造、匹配程度提升两个维度,九个方面,对两者动态匹配路径进行设计。     

碳关税争端及其对中国制造业的影响

欧美国家提议的针对高耗能进口产品特别征收的碳关税可能使中国制造业面临较大的潜在冲击。本文一是在分析碳关税争端国际背景的基础上,对美国发生大跨度政策转向的深层次原因进行深入探讨;二是通过对中国工业品的出口结构及其隐含碳排放量的分析,进一步评估碳关税对制造业可能造成的冲击程度;三是对碳关税政策与WTO规则的冲突问题进行了探讨。分析表明,尽管碳关税政策违背UNFCCC的基本原则和WTO的国民待遇原则,但欧美国家正试图利用WTO/GATT的一般例外条款加以推动。针对碳关税政策未来可能被纳入WTO规则解释范围的问题,本文提出了几项反制性的应对策略。     

浅谈现代数控技术的发展趋势

数控技术是当今先进制造技术的核心技术。本文重点分析了当今数控技术发展的趋势,国内外数控技术的发展概况以及数控技术在机械制造业中的战略意义,强调了发展数控技术的重要性。     

我国制造企业在战略导向下的管理模式创新研究

当前,我国已经成为世界制造业大国之一,但还不是制造业强国。管理模式落后和创新能力不足是制约我国制造企业发展的最主要因素。分析了现阶段我国制造企业管理模式与国外先进模式的差距,并结合战略导向时期企业管理模式的新要求制定了我国制造企业管理模式的创新方向。     

An enhanced dynamic hash TRIE algorithm for lexicon search

Information retrieval (IR) is essential to enterprise systems along with growing orders, customers and materials. In this article, an enhanced dynamic hash TRIE (eDH-TRIE) algorithm is proposed that can be used in a lexicon search in Chinese, Japanese and Korean (CJK) segmentation and in URL identification. In particular, the eDH-TRIE algorithm is suitable for Unicode retrieval. The Auto-Array algorithm and Hash-Array algorithm are proposed to handle the auxiliary memory allocation; the former changes its size on demand without redundant restructuring, and the latter replaces linked lists with arrays, saving the overhead of memory. Comparative experiments show that the Auto-Array algorithm and Hash-Array algorithm have better spatial performance; they can be used in a multitude of situations. The eDH-TRIE is evaluated for both speed and storage and compared with the naïve DH-TRIE algorithms. The experiments show that the eDH-TRIE algorithm performs better. These algorithms reduce memory overheads and speed up IR.     

An exploratory review of the relationship between enterprise training and technology upgrading: evidence from South African manufacturing firms

The study examines the extent to which disaggregated training variables are related to technological upgrading, in the context of a middle-income developing country trying to manage its integration into the global economy. For a developing country, successful integration into the global economy requires that local manufacturing firms are able to competitively restructure, as a precondition for survival and long-term growth. Consequently, skills and technological upgrading are crucial in raising the international competitive advantage of local firms. Enterprise-provided training is one means that can be used by local firms to continuously upgrade their knowledge bases, increase their international competitiveness, and enhance employment growth over time. This paper uses South Africa as a case study, to demonstrate how economic reform measures can expose skills deficiencies in the manufacturing sector and lead to an increase in capital intensity of the sector. Exposure of skills deficiencies, in turn, raises the importance of skill-upgrading through schooling and training of existing workforce. Despite a couple of studies on the evolution of the labour market in South Africa, no previous research has explicitly examined the relationship between technological upgrading and disaggregated training/learning variables at the firm level. This paper aims to fill that gap by focusing on disaggregated enterprise-based training efforts. The study uses the Human Capital theoretical framework to answer the main research question: Which disaggregated learning variables (i.e., on-the-job or off-the-job training offered to different occupational groups) are significantly associated with technological upgrading? The study raises possible issues of heterogeneity in returns to training offered to different occupational groups in the context of technological-upgrading. On the other hand, technological upgrading may not necessarily always disadvantage all unskilled workers. Possible policy implications of research findings are outlined.     

基于支架式教学法的《仪器制造工艺学》课程建设与实践

支架式教学模式是一种建立在建构主义理论基础上的教学方法,它适用于学习实践性强和综合性较强的知识和技能。结合仪器制造工艺学课程的教学特点和教学内容,尝试将支架式教学模式合理应用于《仪器制造工艺学》课程的教学中,并详细论述了从支架的搭建、布置、任务完成到总结与评价的全过程,探讨了支架式教学模式应用时应注意的问题。