检索结果-内蒙古大学图书馆

International Conference on Computational Aspects of Social Networks, CASON

作者： Huaping Mu Changyi Jiao Jianchao Zeng Department of Electronic Information Engineering Hebi College of Vocation and Technology Hebi China Division of System Simulation and Computer Application Taiyuan University of Science and Technology Taiyuan China

Enlightened by the properties of scale-free network model, BA model is extended and introduced into particle swarm optimization, and a novel two-phase particle swarm optimization with scale-free network model (TPSO-SNM) is proposed. At the early stages of the algorithm, particles are randomly distributed in a ring, new particles are continuously added into the structure based on the node degree and the distance between nodes. At the same time, the global optimum in evolution equation is substituted with the average optimal location in neighborhood. Simulation results show that the new method has better ability to find the global optimum solution.

关键词： Particle swarm optimization Heuristic algorithms Convergence Computational modeling Mathematical model Simulation Clustering algorithms

来源：评论

学校读者我要写书评

暂无评论

Identifying machine query for an intelligent web browser system

Identifying machine query for an intelligent web browser sys...

引用

IEEE Symposium on Web Society, SWS

作者： Tingshao Zhu Xinguo Xu Guohua Liu Chinese Academy and Sciences Beijing China National Computer System Engineering Research Institute of China Beijing China Department of Computing Science University of Alberta Edmonton Canada

This paper describes our research on learning browsing behavior model for predicting the current information need of a web user. This inference is based on a parameterized model of how the sequence of browsing behavior indicates the degree to which page content satisfies the user's information need, and the model parameters can be estimated using standard methods from a labelled corpus. Data from lab experiments demonstrate that the prediction model can effectively identify the information needs of new users, browsing previously unseen pages. The paper concludes with an overview of our WebIC which integrates the model into a web browser, to help the user find the relevant information effectively from the web.

关键词： Search engines Predictive models Training Feature extraction Data models Browsers Testing

来源：评论

学校读者我要写书评

暂无评论

Mining Hierarchical Decision Rules from Hybrid Data with Categorical and Continuous Valued Attributes

引用

浙江海洋学院学报（自然科学版） 2010年第5期29卷 420-427页

作者： MIAO Duo-qian QIAN Jin LI Wen ZHANG Ze-hua Department of Computer＇Science and Technology Tongji University Shanghai 201804 China College of Computer Engineering Jiangsu Teachers University of Technology Changzhou 213015 China Key Laboratory of Embedded System and Service Computing Ministry of Education of China Tongji University Shanghai 201804 China

Decision rules mining is an important issue in machine learning and data ***,most proposed algorithms mine categorical data at single level,and these rules are not easily understandable and really useful for ***,a new approach to hierarchical decision rules mining is provided in this paper,in which similarity direction measure is introduced to deal with hybrid *** approach can mine hierarchical decision rules by adjusting similarity measure parameters and the level of concept hierarchy trees.

关键词： Similarity relation Attribute reduction Hierarchical decision rules Hybrid data

来源：评论

学校读者我要写书评

暂无评论

Swarm intelligence applied basic research on ecological environment protection in the “Three-River Headwaters” region: A survey

Swarm intelligence applied basic research on ecological envi...

引用

World Congress on Intelligent Control and Automation (WCICA)

作者： Zhi-bin Xue Jian-chao Zeng Department of chemical machinery Chemical engineering college Qinghai University Xining China Complex System and Computer Intelligence Laboratory Taiyuan University of Science and Technology Shanxi China

Some potential research hotspot problems on swarm intelligence in the “Three-River Headwaters” region are surveyed form an artificial intelligence perspective. The scientific analysis and demonstration results in this paper confirm that the scheme that application of advanced artificial intelligent technology and the idea of circular economy in the regional economic development of the “Three-River Headwaters” region so as to make the rich resources can be effective utilization and realize the sustainable development which is feasible and accord with the requirement of the scientific development view.

关键词： Particle swarm optimization Global Positioning system Robots Artificial intelligence Educational institutions Economics Automation

来源：评论

学校读者我要写书评

暂无评论

Passive Synthetic Aperture Radar Imaging with Single Frequency Sources of Opportunity

Passive Synthetic Aperture Radar Imaging with Single Frequen...

引用

IEEE Radar Conference

作者： Can Evren Yarman Ling Wang Birsen Yazici Houston Technology Center WesternGeco Schlumberger College of Information Science and Technology Nanjing University of Aeronautics and Astronautics Department of Electrical Computer and System Engineering Rensselaer Polytechnic Institute

ISBN: (纸本)9781424458110

In this paper we consider passive airborne receivers that use backscattered signals from sources of opportunity transmitting fixed-frequency waveforms. Due to its combined passive synthetic aperture and the fixed-frequency nature of the transmitted waveforms, we refer to the system under consideration as Doppler Synthetic Aperture Hitchhiker (DSAH). We present a novel image formation method for DSAH. Our method first correlates the windowed signal obtained from one receiver with the windowed, filtered, scaled and translated version of the received signal from another receiver. This processing removes the transmitter related variables from the phase of the Fourier integral operator that maps the radiance of the scene to the correlated signal. We next use the microlocal analysis to reconstruct the scene radiance by the weighted-backprojection of the correlated signal. This imaging algorithm can put the visible edges of the scene radiance at the correct location, and under appropriate conditions, with correct strength. Additionally, it is an analytic reconstruction technique which can be made computationally efficient. We show that the resolution of the image is directly related to the length of the support of the windowing function and the frequency of the transmitted waveform. The image reconstruction method is applicable with both cooperative and non-cooperative sources of opportunity using one or more airborne receivers. We present numerical simulations to demonstrate the performance of the image reconstruction method and to verify the theoretical results.

关键词： Synthetic aperture image reconstruction radiance single-frequency received signal fixed frequency image resolution Radar polarimetry Reconstruction algorithm signals waveforms

来源：评论

学校读者我要写书评

暂无评论

Attribute ranking for lateralizing focal epileptogenicity in temporal lobe epilepsy

Attribute ranking for lateralizing focal epileptogenicity in...

引用

Iranian Conference of Biomedical engineering (ICBME)

作者： Shobeir Fakhraei Hamid Soltanian-Zadeh Kost Elisevich Farshad Fotouhi Image Analysis Laboratory Department of Radiology Henry Ford Health System Detroit MI USA Department of Computer Science Wayne State University Detroit MI USA CIPCE School of Electrical and Computer Engineering University of Tehran Tehran Iran Department of Neurosurgery Henry Ford Health System Detroit MI USA

A consensus feature-ranking approach has been applied to the study of localization-related temporal lobe epilepsy (TLE) in order to evaluate the relative discriminative power of individual attributes. Cases were selected on the basis of a postoperative outcome free of disabling seizures (i.e., Engel class I) in order to establish a definitive laterality of focal epileptogenicity. Several quantitative measures made available by imaging and electrographic studies are considered and the most discriminative of these are quantitatively prioritized for the lateralization of focal epileptogenicity. Cases requiring extraoperative electrocorticography were examined as a subgroup to establish whether the current method of analysis could distinguish laterality sufficiently well to avoid the requirement for intracranial electrode implantation.

关键词： Electroencephalography Medical diagnostic imaging Epilepsy Data mining Temporal lobe

来源：评论

学校读者我要写书评

暂无评论

Consensus Feature Ranking in Datasets with Missing Values

Consensus Feature Ranking in Datasets with Missing Values

引用

International Conference on Machine Learning and Applications (ICMLA)

作者： Shobeir Fakhraei Hamid Soltanian-Zadeh Farshad Fotouhi Kost Elisevich Image Analysis Laboratory Department of Radiology Henry Ford Health System Detroit MI USA Department of Computer Science Wayne State University Detroit MI USA CIPCE School of Electrical And Computer Engineering University of Tehran Tehran Iran Department of Neurosurgery Henry Ford Health System Detroit MI USA

Development of a feature ranking method based upon the discriminative power of features and unbiased towards classifiers is of interest. We have studied a consensus feature ranking method, based on multiple classifiers, and have shown its superiority to well known statistical ranking methods. In a target environment such as a medical dataset, missing values and an unbalanced distribution of data must be taken into consideration in the ranking and evaluation phases in order to legitimately apply a feature ranking method. In a comparison study, a Performance Index (PI) is proposed that takes into account both the number of features and the number of samples involved in the classification.

关键词： Accuracy Support vector machines Classification algorithms Niobium Medical diagnostic imaging Data mining

来源：评论

学校读者我要写书评

暂无评论

Efficient model reduction of interconnects via double gramians approximation 10

Efficient model reduction of interconnects via double gramia...

引用

Asia and South Pacific Design Automation Conference

作者： Boyuan Yan Sheldon X.-D. Tan Gengsheng Chen Yici Cai Department of Electrical Engineering University of California Riverside CA USA State Key Laboratory of ASIC & System Fudan University Shanghai China Computer Science Department Tsinghua University Beijing China

ISBN: (纸本)9781605588377

The gramian approximation methods have been proposed recently to overcome the high computing costs of classical balanced truncation based reduction methods. But those methods typically gain efficiency by projecting the original system only onto one dominant subspace of the approximate system gramian (for instance using only controllability gramian). This single gramian reduction method can lead to large errors as the subspaces of controllability and observability can be quite different for general interconnects with unsymmetric system matrices. In this paper, we propose a fast balanced truncation method where the system is balanced in terms of two approximate gramians as achieved in the classical balanced truncation method. The novelty of the new method is that we can keep the similar computing costs of the single gramian method. The proposed algorithm is based on a generalized SVD-based balancing scheme such that the dominant subspace of the approximate gramian product can be obtained in a very efficient way without explicitly forming the gramians. Experimental results on a number of published benchmarks show that the proposed method is much more accurate than the single gramian method with similar computing costs.

关键词： Reduced order systems Costs Controllability Approximation methods Error correction Observability Integrated circuit interconnections Large-scale systems Equations Control systems

来源：评论

学校读者我要写书评

暂无评论

3D topological reconstruction based on Hough transform and growing neural gas for informationally structured space

3D topological reconstruction based on Hough transform and g...

引用

2010 IEEE/RSJ International Conference on Intelligent Robots and systems

作者： Naoyuki Kubota Tsubasa Narita Beom Hee Lee Department of System Design Tokyo Metropolitan University Hino Tokyo Japan Japan School of Electrical Engineering and Computer Science Seoul National University of Technology Seoul South Korea

This paper proposes a method of 3D topological reconstruction for informationally structured space including sensor networks and robot partners for co-existing with people. The informationally structured space realizes the quick update and access of valuable and useful information for both people and robots on real and virtual environments. In this paper, we use distance information and color information measured by 3D distance image sensor and CMOS camera for 3D topological reconstruction. First, we propose an extraction method of objects from the background image based on Hough transform as preprocessing. Next, we propose a method of 3D topological reconstruction based on growing neural gas to construct informationally structured space. Finally, we show experimental results of the proposed method and discuss the effectiveness of the proposed method.

关键词： Three dimensional displays Robot sensing systems Transforms Cameras Image color analysis Mobile robots

来源：评论

学校读者我要写书评

暂无评论

E-cost estimation using expert judgment and COCOMO II

E-cost estimation using expert judgment and COCOMO II

引用

International Symposium on Information Technology, ITSim

作者： Zulkefli Bin Mansor Zarinah Mohd Kasirun Noor Habibah Hj Arshad Saadiah Yahya Department of Computer Science Faculty of Industrial Information Technology Universiti Industri Selangor Selangor Darul Ehsan Malaysia Department of Software Engineering Faculty of Computer Science and Information Technology University Malaya Kuala Lumpur Malaysia System Science Studies Faculty of Computer Science and Mathematics Universiti Teknologi Mara Selangor Darul Ehsan Malaysia Computer Technology and Networking Studies Faculty of Computer Science and Mathematics Universiti Teknologi Mara Selangor Darul Ehsan Malaysia

The accuracy and efficiency of cost estimation methodology for web-based application is very important for software development as it would be able to assist the management team to estimate the cost. Furthermore, it will ensure that the development of cost is within the planned budget and provides a fundamental motivation towards the development of web-based application project. The literature review reveals that COCOMO II provides accurate result because more variables are considered including reuse parameter. The parameter is one of the essential variables in estimating the cost in web-based application development. This research investigates the feasibility to combine and implement COCOMO II and expert judgment technique in a tool called WebCost. In estimating a cost, the tool considers all variables in COCOMO II and requires expert judgment to key-in the input of the variables such as project size, project type, cost adjustment factor and cost driven factor. Developed in JAVA, WebCost is proven able to estimate cost and generate its estimation result. The usability evaluation conducted had shown that WebCost is usable when compared with other tools, it has its own advantages. WebCost is evidence suitable for everyone especially the project managers, software practitioners or software engineering student in handling the cost estimation tasks.

关键词： Variable speed drives Book reviews Estimation Accuracy computer aided software engineering

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：