提出了一种用于检测全天空图像(ASI)序列中的弧状极光事件检测方法.针对弧状极光序列的运动趋势,在现有VLBP的基础上提出了基于空时极向LBP(ST-PVLBP)的极光序列事件检测算法,并用ST-PVLBP对极光序列进行表征.该算法结合序列帧间连续性信息和单帧空间位置信息,在保持高分类精度的同时降低了特征维数.在中国北极黄河站的ASI图像数据上的分类实验结果显示,所提出的方法可以有效检测全天空极光图像序列中的地磁南北向运动的弧状极光序列事件.

关键词：极光序列；空时结构；弧状极光；局部二值模式

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在多标记学习框架中,每个对象由一个示例(属性向量)描述,却同时具有多个类别标记.在已有的多标记学习算法中,一种常用的策略是将相同的属性集合应用于所有类别标记的预测中.然而,该策略并不一定是最优选择,原因在于每个标记可能具有其自身独有的特征.基于这个假设,目前已经出现了基于标记的类属属性进行建模的多标记学习算法LIFT.LIFT包含两个步骤:属属性构建与分类模型训练.LIFT首先通过在标记的正类与负类示例上进行聚类分析,构建该标记的类属属性;然后,使用每个标记的类属属性训练对应的二类分类模型.在保留LIFT分类模型训练方法的同时,考察了另外3种多标记类属属性构造机制,从而实现LIFT算法的3种变体——LIFTMDDM,LIFT-INSDIF以及LIFT-MLF.在12个数据集上进行了两组实验,验证了类属属性对多标记学习系统性能的影响以及LIFT采用的类属属性构造方法的有效性. 

关键词：机器学习；多标记学习；类属属性；降维；标记相关性

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In parallel with the implementation of information and communications systems, health care organizations are beginning to amass large-scale repositories of clinical and administrative data. Many nations seek to leverage so-called Big Data repositories to support improvements in health outcomes, drug safety, health surveillance, and care delivery processes. An unsupported assumption is that electronic health care data are of sufficient quality to enable the varied use cases envisioned by health ministries. The reality is that many electronic health data sources are of suboptimal quality and unfit for particular uses. To more systematically define, characterize and improve electronic health data quality, we propose a novel framework for health data stewardship. The framework is adapted from prior data quality research outside of health, but it has been reshaped to apply a systems approach to data quality with an emphasis on health outcomes. The proposed framework is a beginning, not an end. We invite the biomedical informatics community to use and adapt the framework to improve health data quality and outcomes for populations in nations around the world.

关键词：医疗记录系统;计算机;质量控制;质量改进;信息存储和检索;医学信息学

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IT can be defined as an integrated platform consisting of hardware, software, services, and BPM. Organizations have IT departments, which are responsible for storing, safeguarding, processing, transmitting, and retrieving information.

关键词：印度；IT；市场报告

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报告包括电子商务方面的重要观点、政策与环境、网购平台、行业应用、电商物流、电商金融等研究。

关键词：政策环境；网购平台；电商物流；电商金融

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Radar is an object detection system that makes use of radio waves to ascertain the range, altitude, direction, and speed of approaching and still objects.

关键词：AMDR；反导雷达；防空

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FEA, a software used in engineering, aims to evaluate the functionality of a product design before prototypes are produced. FEA software is used in manufacturing industries for the estimation of structural strength and behavior, modeling, simulation, and design optimization.

关键词：北美地区；有限元分析；软件

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A fleet management system is an assortment of integrated hardware and software technologies that is used as an interface by fleet vehicle operators to track and control various operations of commercial vehicles such as trucks, vans, and cars.

关键词：美国；车队管理系统；市场报告

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Over the last few years, the consumer's television viewing habits have been undergoing rapid changes. When 3D TV sets appeared in households in 2010, the Global TV market was already in a turnaround phase. The new entrant had to fight not only with the other TV models but also with the new means of entertainment that were fast eating into the consumer's TV viewing time.

关键词：亚太地区；三维电视；3D

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Safety and security are critical to any country's prosperity. Public safety is all about getting the right information to the right person at the right time to keep the surroundings safe. This can be achieved by using mobile broadband, which is a transformational technology. Mobil broadband is the introduction of next generation wireless data technology in field applications, equipping people with the best real-time data, video, voice or other forms of communication, and rich media services - all of which can be especially important in mission-critical situations. Ambulance crews can send vision of an injured person to doctors at a hospital so that an early diagnosis can be made and treatment started as quickly as possible. Police officers responding to an incident can have access to information, images, and video of the scene they are about to walk into. Fire crews can use public safety mobile broadband to obtain weather updates, look at maps of the local terrain, and review complex modeling of how a fire is advancing.

关键词：安全；国家；公共安全；信息传递；移动宽带

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