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关键词

运动补偿 2

BG算法 1

BSP） 1

FGR预测 1

HY-2 1

NOG小鼠 1

SARS 1

三维点云；孔洞修补；立体匹配；B样条 1

主动虚拟服务器 1

二次防御 1

交通工程 1

交通规划 1

产品设计；知识推送系统；增强训练集；多分类神经网络；知识匹配 1

产品设计；知识推送；适用概率匹配；多维情境；个性化 1

人脸建模 1

代码复用；代码推荐；树相似度；结构信息 1

侧边曲线方程 1

信息代理 1

信息物理系统；软件工具箱；预实体化设计；系统表现特征；仓库；数据库图式；基因型系统表现特征；表型系统表现特征；实例系统表现特征；信息模式构造 1

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Heuristic solution using decision tree model for enhanced XML schema matching of bridge structural calculation

Sang I. PARK, Sang-Ho LEE

《结构与土木工程前沿（英文）》 2020年第14卷第6期页码 1403-1417 doi: 10.1007/s11709-020-0666-8

摘要： Research on the quality of data in a structural calculation document (SCD) is lacking, although the SCD of a bridge is used as an essential reference during the entire lifecycle of the facility. XML Schema matching enables qualitative improvement of the stored data. This study aimed to enhance the applicability of XML Schema matching, which improves the speed and quality of information stored in bridge SCDs. First, the authors proposed a method of reducing the computing time for the schema matching of bridge SCDs. The computing speed of schema matching was increased by 13 to 1800 times by reducing the checking process of the correlations. Second, the authors developed a heuristic solution for selecting the optimal weight factors used in the matching process to maintain a high accuracy by introducing a decision tree. The decision tree model was built using the content elements stored in the SCD, design companies, bridge types, and weight factors as input variables, and the matching accuracy as the target variable. The inverse-calculation method was applied to extract the weight factors from the decision tree model for high-accuracy schema matching results.

关键词： structural calculation document bridge structure XML Schema matching weight factor data mining decision tree model

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Design of an enhanced visual odometry by building and matching compressive panoramic landmarks online

Wei LU,Zhi-yu XIANG,Ji-lin LIU

《信息与电子工程前沿（英文）》 2015年第16卷第2期页码 152-165 doi: 10.1631/FITEE.1400139

摘要： Efficient and precise localization is a prerequisite for the intelligent navigation of mobile robots. Traditional visual localization systems, such as visual odometry (VO) and simultaneous localization and mapping (SLAM), suffer from two shortcomings: a drift problem caused by accumulated localization error, and erroneous motion estimation due to illumination variation and moving objects. In this paper, we propose an enhanced VO by introducing a panoramic camera into the traditional stereo-only VO system. Benefiting from the 360° field of view, the panoramic camera is responsible for three tasks: (1) detecting road junctions and building a landmark library online; (2) correcting the robot’s position when the landmarks are revisited with any orientation; (3) working as a panoramic compass when the stereo VO cannot provide reliable positioning results. To use the large-sized panoramic images efficiently, the concept of compressed sensing is introduced into the solution and an adaptive compressive feature is presented. Combined with our previous two-stage local binocular bundle adjustment (TLBBA) stereo VO, the new system can obtain reliable positioning results in quasi-real time. Experimental results of challenging long-range tests show that our enhanced VO is much more accurate and robust than the traditional VO, thanks to the compressive panoramic landmarks built online.

关键词： Visual odometry Panoramic landmark Landmark matching Compressed sensing Adaptive compressive feature

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Beyond bag of latent topics: spatial pyramid matching for scene category recognition

Fu-xiang LU,Jun HUANG

《信息与电子工程前沿（英文）》 2015年第16卷第10期页码 817-828 doi: 10.1631/FITEE.1500070

摘要： We propose a heterogeneous, mid-level feature based method for recognizing natural scene categories. The proposed feature introduces spatial information among the latent topics by means of spatial pyramid, while the latent topics are obtained by using probabilistic latent semantic analysis (pLSA) based on the bag-of-words representation. The proposed feature always performs better than standard pLSA because the performance of pLSA is adversely affected in many cases due to the loss of spatial information. By combining various interest point detectors and local region descriptors used in the bag-of-words model, the proposed feature can make further improvement for diverse scene category recognition tasks. We also propose a two-stage framework for multi-class classification. In the first stage, for each of possible detector/descriptor pairs, adaptive boosting classifiers are employed to select the most discriminative topics and further compute posterior probabilities of an unknown image from those selected topics. The second stage uses the prod-max rule to combine information coming from multiple sources and assigns the unknown image to the scene category with the highest ‘final’ posterior probability. Experimental results on three benchmark scene datasets show that the proposed method exceeds most state-of-the-art methods.

关键词： Scene category recognition Probabilistic latent semantic analysis Bag-of-words Adaptive boosting

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基于粉碎区控制的钻孔爆破岩石-炸药匹配方法

冷振东,卢文波,严鹏,陈明,胡英国

《中国工程科学》 2014年第16卷第11期页码 28-35

摘要：

合理的炸药-岩石匹配关系对于提高炸药能量的有效利用率和改善破碎效果有着重要意义。传统上强调的波阻抗匹配理论并不合理，文章从爆破破碎机理出发，提出了一种岩石-炸药匹配的新方法，在保证相邻炮孔间岩石充分破碎的前提下，通过对粉碎区的合理控制来确定钻孔爆破最优的炸药性能参数。该方法可以直观地反映爆破破碎效果及能量有效利用率，可操作性强。考虑相邻炮孔爆炸荷载的联合作用，修正了钻孔爆破破坏分区计算模型。在此基础上，针对具体工程目标给出了混装炸药耦合装药条件下不同等级岩石的炸药性能匹配参数。

关键词：钻孔爆破粉碎区岩石-炸药匹配波阻抗匹配

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主动虚拟服务器和网上数据集成的新模式

何新贵,杨良怀,唐世渭,杨冬青,陈立军,张震,林斌

《中国工程科学》 2001年第3卷第5期页码 55-60

摘要：

针对Internet上信息搜索和数据集成存在的问题，提出了“主动虚拟服务器”的概念，并给出了基于这种虚拟服务器的数据集成模式。主动虚拟服务器可认为是网上海量数据统一的存储和处理器，而且具有主动服务的功能。在不改变服务器中原DBMS的前提下，只需用一种统一的可扩展语言UXL为各种服务器做一件外观统一的“主动服务外套”，就可构成所需的"主动虚拟服务器"。上述"外套"对每种服务器只需实现一次，就能在整个网上统一使用，因此，它可在网上起到与Java虚拟机类似的作用。

关键词：主动虚拟服务器数据集成可扩展的标记语言(XML) 统一的可扩展语言(UXL) 信息代理

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存在镜面反射时的双目立体匹配

卢思军,唐振民,郭龙源,卢阿丽

《中国工程科学》 2010年第12卷第1期页码 56-60

摘要：

传统的立体匹配方法建立在Lambertian的漫反射模型之上，漫反射模型的立体匹配在一个图像的大多部分是有效的，但是在处理图像中包含镜面反射的部分时结果会产生严重的匹配错误。笔者利用漫反射和镜面反射在灰度和最大色度上的不同，分离出镜面反射的像素，然后采用一种针对镜面反射的匹配测度，在图像中漫反射部分和镜面反射部分都能匹配得到正确的视差。结果证明了方法的有效性。

关键词：立体匹配漫反射镜面反射色度

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Multi-UAV collaborative system with a feature fast matching algorithm

Tian-miao Wang, Yi-cheng Zhang, Jian-hong Liang, Yang Chen, Chao-lei Wang,zycet@126.com

《信息与电子工程前沿（英文）》 2020年第21卷第12期页码 1671-1814 doi: 10.1631/FITEE.2000047

摘要： We present a real-time monocular system with a new distributed structure for multi-UAV tasks. The system is different from other general SLAM systems in two aspects: First, it does not aim to build a global map, but to estimate the latest relative position between nearby vehicles; Second, there is no centralized structure in the proposed system, and each vehicle owns an individual metric map and an ego-motion estimator to obtain the relative position between its own map and the neighboring vehicles’. To realize the above characteristics in real time, we demonstrate an innovative algorithm to avoid catastrophic expansion of feature point matching workload due to the increased number of UAVs. Based on the hash and principal component analysis, the matching time complexity of this algorithm can be reduced from (log ) to (1). To evaluate the performance, the algorithm is verified on the acknowledged multi-view stereo benchmark dataset, and excellent results are obtained. Finally, through the simulation and real flight experiments, this improved SLAM system with the proposed algorithm is validated.

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HY-2卫星扫描微波辐射计多通道分辨率匹配技术研究

黄磊,周武,李延民

《中国工程科学》 2014年第16卷第6期页码 65-69

摘要：

星载微波辐射计多通道海洋参数反演需要基于同一位置、同一分辨率的多通道观测值，但由于星载微波辐射计设计的局限性，多通道观测地面像元位置和分辨率均不同，因此运用多通道分辨率匹配技术统一观测面元是扫描微波辐射计数据处理中的关键技术，基于海洋二号（HY-2）卫星扫描微波辐射计的成像原理和天线方向图，模拟各通道天线方向图在地面的投影，用Backus-Gilbert（BG）算法将高频观测亮温重采样到最低的低频6.6 GHz通道的观测位置和像元分辨率。结果表明，BG降低分辨率重采样算法能得到很好的拟合效果，并且不另引入噪声。

关键词：扫描微波辐射计 HY-2 分辨率匹配 BG算法

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Overlap maximum matching ratio (OMMR): a new measure to evaluate overlaps of essential modules

Xiao-xia ZHANG,Qiang-hua XIAO,Bin LI,Sai HU,Hui-jun XIONG,Bi-hai ZHAO

《信息与电子工程前沿（英文）》 2015年第16卷第4期页码 293-300 doi: 10.1631/FITEE.1400282

摘要： Protein complexes are the basic units of macro-molecular organizations and help us to understand the cell’s mechanism. The development of the yeast two-hybrid, tandem affinity purification, and mass spectrometry high-throughput proteomic techniques supplies a large amount of protein-protein interaction data, which make it possible to predict overlapping complexes through computational methods. Research shows that overlapping complexes can contribute to identifying essential proteins, which are necessary for the organism to survive and reproduce, and for life’s activities. Scholars pay more attention to the evaluation of protein complexes. However, few of them focus on predicted overlaps. In this paper, an evaluation criterion called overlap maximum matching ratio (OMMR) is proposed to analyze the similarity between the identified overlaps and the benchmark overlap modules. Comparison of essential proteins and gene ontology (GO) analysis are also used to assess the quality of overlaps. We perform a comprehensive comparison of serveral overlapping complexes prediction approaches, using three yeast protein-protein interaction (PPI) networks. We focus on the analysis of overlaps identified by these algorithms. Experimental results indicate the important of overlaps and reveal the relationship between overlaps and identification of essential proteins.

关键词： Protein-protein interaction network Essential protein modules Overlap Overlap maximum matching ratio

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面向运动估计器硬件实现的加权块匹配检测算法

张霞,郑南宁,张光烈,吴勇,王少瑞,徐维朴

《中国工程科学》 2002年第4卷第1期页码 47-53

摘要：

在各种视频处理算法中，运动补偿型算法大大提高了各种视频处理效果。运动估计器的硬件实现是各种运动补偿视频处理算法在实际系统中运用的关键。由于块匹配运动估计算法较低的运算复杂度和硬件实现难度以及块匹配检测标准函数很高的调用频率，已经广泛应用到各种实际系统中。文中提出了加权最小最大误差的匹配检测标准，能够降低运动估计器的运算复杂度，减少估计器的硬件面积，提高硬件速度，而且能够降低递归搜索块匹配运动估计算法固有误差传递带来的负面影响。

关键词：视频处理运动补偿运动估计块匹配检测标准

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基于适用概率匹配与多维情境驱动的设计知识推送技术 None

Shu-you ZHANG, Ye GU, Xiao-jian LIU, Jian-rong TAN

《信息与电子工程前沿（英文）》 2018年第19卷第2期页码 235-245 doi: 10.1631/FITEE.1700763

摘要：为了提高产品智能设计过程中设计知识的使用效率和质量，有必要向设计人员主动推送设计知识。知识推送主要包括知识匹配和匹配结果的合理推送两个方面。针对现有知识匹配通常缺乏智能性和匹配结果推送缺少个性化的问题，提出基于适用概率匹配和多维情境驱动的设计知识推送技术。构建包括设计知识表示向量、设计案例特征向量和映射布尔矩阵等的训练样本集，通过贝叶斯理论计算设计知识适用与不适用于设计内容的概率，即二者之间的匹配度，得到推送知识集。构建等级化设计内容模型对推送知识集进行过滤，通过设计知识、设计上下文、设计内容和设计人员等多维情境驱动，实现个性化的设计知识推送。在数控机床智能设计平台中的知识推送应用，证明了该技术的可行性和正确性。

关键词：产品设计；知识推送；适用概率匹配；多维情境；个性化

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系统表现特征实例化和构成的信息模式构造 Article

Shahab POURTALEBI, Imre HORVÁTH

《信息与电子工程前沿（英文）》 2017年第18卷第9期页码 1396-1415 doi: 10.1631/FITEE.1601235

摘要：为进一步说明之前的文章，提出了支持面向特定系统表现特征（system manifestation feature, SMFs）的信息管理和构成系统模型编程的信息模式构造（information schema

关键词：系统表现特征；信息模式构造；数据库纲要；基因型系统表现特征；表型系统表现特征；系统表现特征实例；软件工具箱；系统层级设计；信息物理系统

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基于云计算的自适应可调节GPS轨迹地图匹配策略 Article

Aftab Ahmed CHANDIO,Nikos TZIRITAS,Fan ZHANG,Ling YIN,Cheng-Zhong XU

《信息与电子工程前沿（英文）》 2016年第17卷第12期页码 1305-1319 doi: 10.1631/FITEE.1600027

摘要：在本文中，我们提出一种实时地图匹配方法（Real-time map-matching, RT-MM）。

关键词：地图匹配，GPS轨迹，可调节，云计算，块同步并行计算（Bulk synchronous parallel BSP）

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线性人脸对象类模型的匹配提升技术

付昀,郑南宁

《中国工程科学》 2005年第7卷第2期页码 47-56

摘要：

针对真实感人脸模型匹配的细节控制和稳健创建问题，提出了线性人脸对象类模型的匹配提升技术。基于非统一抽样(NUS)的动态高斯金字塔分析(DGPA)方法，结合不等概率抽样和整群抽样策略，自适应地动态调整每级高斯金字塔图像的抽样分布，利用最优化算法由粗到精的计算全局近似最优解，获得精确的模型匹配。动态调节整群区域边界并利用再抽样率调节抽样密度，可以有效控制人像模型的细节表达效果，提高模型创建的稳健性。随机梯度下降的线性相关性扰动(CD-SGD)和学习率自适应(ALR)技术，提高了模型匹配的准确性和收敛速度。以MPI和AI&R人像库为测试样本，主观与客观评价的实验结果验证了该模型匹配提升技术的有效性。

关键词：人脸建模模型匹配随机梯度下降非统一抽样多分辨率分析

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An investigation on stress distribution effect on multi- piezoelectric energy harvesters

Hailu YANG, Dongwei CAO

《结构与土木工程前沿（英文）》 2017年第11卷第3期页码 301-307 doi: 10.1007/s11709-017-0404-z

摘要： With the fast development of piezoelectric materials and due to its green and renewable characteristics, the piezoelectric energy harvesting technology has been paid more and more attention by pavement engineers. The stress distribution will significantly affect the piezoelectric material performance. In this paper, the effects of multiple piezoelectric elements on the generation of electrical energy and output power are studied. In the case of constant external load, the number of the piezoelectric units does not necessarily produce more energy. When the same multi piezoelectric units work together, if the stress state of the piezoelectric units is different, the total output energy affected by the connection mode. For uneven stress distribution, the optimal output mode is that each of the piezoelectric units rectified before connected in parallel.

关键词： piezoelectric transducer uneven stress impedance matching optimal energy output