Representation model and learning algorithm for uncertain and imprecise multivariate behaviors,based on correlated trends

The computational representation and classification of behaviors is a task of growing interest in the field of Behavior Informatics, being series of data a common way of describing those behaviors. However, as these data are often imperfect, new representation models are required in order to effectively handle imperfection in this context. This work presents a new approach, Frequent Correlated Trends, for representing uncertain and imprecise multivariate data series. Such a model can be applied to any domain where behaviors recur in similar—but not identical—shape. In particular, we have already used them to the task of identifying the performers of violin recordings with good results. The present paper describes the abstract model representation and a general learning algorithm, and discusses several potential applications.     

我国船用液化石油气(LPG)动力装置的现状及发展

分析了船用LPG动力装置的研制开发与应用背景、目前的技术开发状态及实船使用情况;指出其发展方向;并就船用LPG动力装置产业化提出建议。     

浅谈奢华日用陶瓷产品在中国的现状与趋势

奢侈品逐渐占据消费市场份额,并成为高端消费的时尚,奢华陶瓷产品的出现也是现代人追求精神享受伴随而生的产物。日用陶瓷产品的奢侈化是在产品的使用环境发生了变化,人的物质追求发生了变迁。面对这一新类产品,本文对奢华日用陶瓷产生的背景、现状和发展趋势进行了研究。着重对日用陶瓷奢侈产品的概念及界定进行了阐述,探讨了奢华日用陶瓷设计的要素,对该产品的未来发展趋势进行了预测。     

汽车电子技术的应用及发展趋势探究

近年来,随着电子技术工业的不断发展完善,其应用范围翻来越广,逐渐进入我国社会生产的多个领域。汽车工业与电子技术的结合是现代汽车工业与电子技术工业发展的一个趋势,电子技术在汽车工业中的应用越来越多,更多的汽车电子控制系统不断出现。本文从汽车电子技术的概念与发展历程入手,对汽车电子技术的应用现状进行了简单探讨,并在此基础上对汽车电子技术的未来发展趋势和方向进行了研究分析。     

国际钨市场分析

本文根据笔者于1994年11月3日至4日在美国阿拉巴马州亨茨维尔市召开的在国际钨协（ITIA）第7次年会上搜集到的大量数据和资料，对近几年来国际钨市场的供应和生产、需求量和国内消耗量做了详实的分析，并对今后的发展动向进行了预测．     

论我国黑社会犯罪的发展趋势与遏制对策

黑社会犯罪问题是当今世界各国都普遍关注的热点问题，我国的黑社会犯罪在近年来也死灰复燃，严重的危害了我国的社会稳定和人民群众的生命财产安全。正确认识我国黑社会犯罪的发展趋势，有针对性地采取措施，有效遏制其发展态势，是我国打击黑社会犯罪的根本途径。     

我国石油钻井泥浆处理剂发展状况与趋势

本文介绍了五十年代以来我国陆上石油钻井泥浆处理剂的研制和应用状况。将处理理剂按功能分为十六大类，再各按主要组份分小类，共２６０个品种，介绍了每一类处理的发展情况。发表了各大类算是剂１９７８－１９９３年分小类品种和１９８３－１９９３年年用量统计数字，降滤失剂，降粘剂，增粘剂，页岩抑制剂四大类处理剂１９８３－１９９３年分小类年用量统计数字，讨论了泥浆处理剂的今后发展趋势。     

Magnitude and categories of pedestrian fatalities in South Africa

Road traffic injuries, a major global public health burden, are concentrated in low-income and middle-income countries.(1) In contrast to high-income countries, pedestrians make up the largest group of road traffic injuries and fatalities in low- and middle-income countries. This article presents an analysis of pedestrian fatalities (2001-2004) in four South African cities. The article describes the magnitude, demographic, and temporal factors associated with pedestrian fatalities and presents a typological analysis to identify particular groups of at risk pedestrians. The analysis can serve to inform the development of prevention programmes tailored to the needs of specific at risk pedestrian groups. Data were obtained from the National Injury Mortality Surveillance System (NIMSS). The results indicated that there were a total of 7433 pedestrian deaths (2001-2004) for the four cities and the majority occurred over weekends. Most (56.7%) were between ages 20 and 44 years. Overall, there were 3.3 male pedestrian deaths for every female pedestrian death, and over half (58%) of the 4004 cases tested were positive for alcohol. A typological analysis identified three categories of pedestrian fatalities: (1) male pedestrian fatalities that showed high levels of alcohol concentrations, (2) female and elderly pedestrian deaths that occurred between 6 AM and midday, and (3) children, adolescents, and young adult pedestrian fatalities that typically occurred during weekday afternoons and evenings. The findings call for multiple strategies for combating pedestrian fatalities.     

世界遗产文化景观及其国际新动向

文化景观是当前国际风景园林界和遗产界的热点。以文化景观的实践领域——世界遗产文化景观为切入点,来梳理文化景观的理论和实践脉络,剖析文化景观议题的意义,分析国际发展动向,从而为建立中国国家景观保护体系提供参考框架,使中国的景观保护为世界遗产文化景观的文化多样性作出应有的贡献。     

矿山工程设备发展趋势及安全管理

根据露天矿山机械设备使用发展趋势以及相应的维修安全管理方面的内容,揭露出机械设备在使用的过程中存在一定的不利因素,严重影响设备的安全管理,这些因素主要包括机械设备的定期润滑,经济因素,人员配备因素,故障检测以及设计方案。通过对存在的问题进行研究分析后提出切实可行的措施,制定完善的安全管理体制和执行标准,利用新型的检测技术和故障检测技术。