检索结果-内蒙古大学图书馆

2009 IEEE International Conference on Intelligent Computing and Intelligent Systems(ICIS2009)

作者： Isabelle Tamanini Ana Karoline de Castro Plcido Rogrio Pinheiro Mirian Calíope Dantas Pinheiro University of Fortaleza （UNIFOR）-Graduate Program in Applied Computer Sciences Av.Washington Soares 1321-Bl J Sl 30-60.811-905-Fortaleza-Brazil

The Alzheimer’s disease has become the most fre-quent cause of dementia in the last few years,and it is responsible,alone or in association with other diseases,for 50% of the cases in western *** main focus of this work is to develop a multicriteria model for aiding in decision making on the diagnosis of Alzheimer’s disease by using the Aranau Tool,structured on the Verbal Decision *** this work,the modeling and evaluation processes were conducted with the aid of a medical expert,bibliographic sources and *** questionnaires taken into account were based mainly on patients’ neuroimaging tests,and we analyzed wheter or not there were problems in the patients’ brain that could be relevant to the diagnosis of Alzheimer’s disease.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Certified Trust Model

IFIP Advances in Information and Communication Technology

引用

IFIP Advances in Information and Communication Technology 2009年 296卷 41-49页

作者： Botêlho, Vanderson Enembreck, Fabríco Ávila, Bráulio C De Azevedo, Hilton Scalabrin, Edson E PUCPR Pontifical Catholic University of Paraná PPGIA Graduate Program on Applied Computer Science R. Imaculada Conceição Curitiba PR1155 Brazil UTFPR Federal Technological University of Paraná PPGTE Graduate Program on Technology Av. 7 de Setembro Curitiba PR3165 Brazil

This paper presents a certified confidence model which aims to ensure credibility for information exchanged among agents which inhabit an open environment. Generally speaking, the proposed environment shows a supplier agent b which delivers service for a customer agent a. The agent a returns to b a cryptographed evaluation r on the service delivered. The agent b will employ R as testimonial when requested to perform the same task for a distinct customer agent. Our hypotheses are: (i) control over testimonials can be distributed as they are locally stored by the assessed agents, i.e., each assessed agent is the owner of its testimonials;and (ii) testimonials, provided by supplier agents on their services, can be considered reliable since they are encapsulated with public key cryptography. This approach reduces the limitations of confidence models based, respectively, on the experience resulted from direct interaction between agents (direct confidence) and on the indirect experience obtained from reports of witnesses (propagated confidence). Direct confidence is a poor-quality measure for a customer agent a hardly has enough opportunities to interact with a supplier agent b so as to grow a useful knowledge base. Propagated confidence depends on the willingness of witnesses to share their experiences. The empiric model was tested in a multiagent system applied to the stock market, where supplier agents provide recommendations for buying or selling assets and customer agents then choose suppliers based on their reputations. Results demonstrate that the confidence model proposed enables the agents to more efficiently choose partners. © 2009, Springer New York LLC. All rights reserved.

关键词： Multi agent systems

来源：评论

学校读者我要写书评

暂无评论

Time series mining approach for noninvasive intracranial pressure assessment: An investigation of different regularization techniques

Time series mining approach for noninvasive intracranial pre...

引用

2009 WRI World Congress on computer Science and Information Engineering, CSIE 2009

作者： Wu, Shaozhi Xu, Peng Asgari, Shadnaz Bergsneider, Marvin Hu, Xiao Department of Neurosurgery David Geffen School of Medicine University of California Los Angeles CA United States Biomedical Engineering Graduate Program Henry Samueli School of Engineering and Applied Science University of California Los Angeles CA United States School of Computer Science and Engineering University of Electronic Science and Technology of China Chengdu 610054 China

ISBN: (纸本)9780769535074

A data mining framework has been proposed to estimate intracranial pressure (ICP) non-invasively in our previous work. In the corresponding approach, the feature vector extracted from arterial blood pressure (ABP) and flow velocity (FV) is translated to the estimated errors by the mapping function for each entry in the database. In this paper, three different mapping function solutions, linear least squares (LLS), truncated singular value decomposition (TSVD) and standard Tikhonov regularization (STR) are systemically tested to compare the possible effects of different solutions on the non-invasive ICP estimation. The conducted comparison demonstrated that the selection of mapping function solution actually influences the estimation. Among the tested three solutions for mapping function, TSVD and STR show better ICP estimation performance with smaller ICP errors than LLS. © 2008 IEEE.

关键词： Flow velocity

来源：评论

学校读者我要写书评

暂无评论

An Expert System Applied to the Diagnosis of Psychological Disorders

An Expert System Applied to the Diagnosis of Psychological D...

引用

2009 IEEE International Conference on Intelligent Computing and Intelligent Systems(ICIS2009)

作者： Luciano Comin Nunes Plácido Rogério Pinheiro Tarcísio Cavalcante Pequeno Graduate Program in Applied Computer Sciences University of Fortaleza Av.Washington Soares 1321-Bloco Jsala 30CEP:60811-905FortalezaCearáBrazil

Psychological disorders have kept away and incapacitated professionals in different sectors of *** most serious problems may be associated with various types of pathologies,however,it appears,more often,as psychotic disorders,mood disorders,anxiety disorders,antisocial personality,multiple personality and addiction,causing a micro level damage to the individual and his/her family and in a macro level to the production system and the country *** lack of early diagnosis has provided reactive measures,and sometimes very late,when the professional is already showing psychological signs of incapacity to *** study aims to help the early diagnosis of psychological disorders with a hybrid proposal of an expert system that is integrated to structured methodologies in decision support (Multi-Criteria Decision Analysis-MCDA) and knowledge structured representations into production rules and probabilities (Artificial Intelligence-AI).

关键词： Early diagnosis,Expert SINTA,expert systems,psychological disorders,health,multicriteria

来源：评论

学校读者我要写书评

暂无评论

Indirect ophthalmoscopic stereo video system using three-dimensional LCD

Indirect ophthalmoscopic stereo video system using three-dim...

引用

Stereoscopic Displays and Applications XX

作者： Kong, Hyoun-Joong Seo, Jong Mo Hwang, Jeong Min Kim, Hee Chan Interdisciplinary Program Biomedical Engineering Major Graduate School Seoul National University Seoul Korea Republic of Department of Electrical Engineering and Computer Sciences Seoul National University Seoul Korea Republic of Department Ophthalmology College of Medicine Seoul National University Seoul Korea Republic of Department of Biomedical Engineering College of Medicine Seoul National University Seoul Korea Republic of

Binocular indirect ophthalmoscope (BIO) provides a wider view of fundus with stereopsis contrary to the direct one. Proposed system is composed of portable BIO and 3D viewing unit. The illumination unit of BIO utilized high flux LED as a light source, LED condensing lens cap for beam focusing, color filters and small lithium ion battery. In optics unit of BIO, beam splitter was used to distribute an examinee's fundus image both to examiner's eye and to CMOS camera module attached to device. Captured retinal video stream data from stereo camera modules were sent to PC through USB 2.0 connectivity. For 3D viewing, two video streams having parallax between them were aligned vertically and horizontally and made into side-by-side video stream for cross-eyed stereoscopy. And the data were converted into autostereoscopic video stream using vertical interlacing for stereoscopic LCD which has glass 3D filter attached to the front side of it. Our newly devised system presented the real-time 3-D view of fundus to assistants with less dizziness than cross-eyed stereoscopy. And the BIO showed good performance compared to conventional portable BIO (Spectra Plus, Keeler Limited, Windsor, UK). © 2009 SPIE-IS&T.

关键词： Stereo image processing

来源：评论

学校读者我要写书评

暂无评论

Non-contact finger vein acquisition system using NIR laser

Non-contact finger vein acquisition system using NIR laser

引用

Sensors, Cameras, and Systems for Industrial/Scientific Applications X

作者： Kim, Jiman Kong, Hyoun-Joong Park, Sangyun Noh, SeungWoo Lee, Seung-Rae Kim, Taejeong Kim, Hee Chan Interdisciplinary Program Graduate School Seoul National University Seoul Korea Republic of Department of Electrical Engineering and Computer Sciences Seoul National University Seoul Korea Republic of Department of Biomedical Engineering College of Medicine Seoul National University Seoul Korea Republic of Institute of Medical and Biological Engineering Medical Research Center Seoul National University Seoul Korea Republic of

Authentication using finger vein pattern has substantial advantage than other biometrics. Because human vein patterns are hidden inside the skin and tissue, it is hard to forge vein structure. But conventional system using NIR LED array has two drawbacks. First, direct contact with LED array raise sanitary problem. Second, because of discreteness of LEDs, non-uniform illumination exists. We propose non-contact finger vein acquisition system using NIR laser and Laser line generator lens. Laser line generator lens makes evenly distributed line laser from focused laser light. Line laser is aimed on the finger longitudinally. NIR camera was used for image acquisition. 200 index finger vein images from 20 candidates are collected. Same finger vein pattern extraction algorithm was used to evaluate two sets of images. Acquired images from proposed non-contact system do not show any non-uniform illumination in contrary with conventional system. Also results of matching are comparable to conventional system. We developed Non-contact finger vein acquisition system. It can prevent potential cross contamination of skin diseases. Also the system can produce uniformly illuminated images unlike conventional system. With the benefit of non-contact, proposed system shows almost equivalent performance compared with conventional system. © 2009 SPIE-IS&T.

关键词： Biometrics

来源：评论

学校读者我要写书评

暂无评论

Learning a nonlinear color distance metric for the identification of skin immunohistochemical staining

Learning a nonlinear color distance metric for the identific...

引用

2009 22nd IEEE International Symposium on computer-Based Medical Systems, CBMS 2009

作者： Sobieranski, Antonio Carlos Neto, Sylvio Luiz Mantelli Coser, Leandro Comunello, Eros Von Wangenheim, Aldo Cargnin-Ferreira, Eduardo Di Giunta, Gabriella LAPIX Laboratory of Image Processing and Computer Graphics UFSC Federal University of Santa Catarina Brazil CPTEC Center for Weather Forecasts and Environment Studies INPE - Brazilian Institute for Space Research Brazil EGC Knowledge Engineering Department UFSC - Federal University of Santa Catarina Brazil MCA Graduate Program in Applied Computer Science UNIVALI - Itajai Valley University Brazil Laboratory of Histological Markers Department of Biology Embriology and Genetics UFSC - Federal University of Santa Catarina Brazil Pathology Service UFSC - Federal University of Santa Catarina Brazil

ISBN: (纸本)9781424448784

This paper presents a semiautomatic method for the identification of immunohistochemical (IHC) staining in digitized samples. The user trains the system by selecting on a sample image some typical positive stained regions that will be used as a reference for the construction of a distance metric. In this learning process, the global optimum is obtained by induction employing higher polynomial terms of the Mahalanobis distance, extracting nonlinear features of the IHC pattern distributions. The results of the proposed method showed a high correlation to a pathologist's manual analysis, which was used as a golden standard, presenting a more robust discrimination between stained and non-stained areas with little bias. © 2009 IEEE.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Gas sensing properties of WO3-doped ZnO nanoparticles synthesized by flame spray pyrolysis

Gas sensing properties of WO3-doped ZnO nanoparticles synthe...

引用

IEEE SENSORS

作者： Chawarat Siriwong Katcharin Wetchakun Anurat Wisitsoraat Sukon Phanichphant Nanosciences and Nanotechnology Program Graduate School Chiang Mai University Chiang Mai Thailand National Electronics and Computer Technology Center Pathum Thani Thailand Department of Chemistry Faculty of Science Sukon Phanichphant Chiang Mai Thailand

The flame-made (5/5) pure ZnO and WO 3 -doped ZnO nanoparticles containing 0.25, 0.50, and 0.75 mol% of WO 3 were successfully synthesized by flame spray pyrolysis (FSP). These materials were studied for NO 2 , CO and H 2 gas sensing at different gas concentrations and operating temperatures ranging from 300-400°C in dry air. The crystalline phase, morphology and size of the nanoparticles were characterized by XRD, BET, TEM, SEM and EDS in order to correlate physical properties with gas sensing performance. The gas-sensing results showed that WO 3 doping significantly enhanced NO 2 gas-sensing performance of ZnO nanoparticles. In addition, 0.5 mol% is found to be an optimal WO 3 concentration which gives the highest sensitivity towards NO 2 .

关键词： Zinc oxide Nanoparticles Fires Thermal spraying Crystalline materials Temperature distribution Temperature sensors Crystallization Morphology X-ray scattering

来源：评论

学校读者我要写书评

暂无评论

Probabilistic structure from sound

引用

Advanced Robotics 2009年第12-13期23卷 1687-1702页

作者： Wang, Chieh-Chih Lin, Chi-Hao Hu, Jwu-Sheng Department of Computer Science and Information Engineering Graduate Institute of Networking and Multimedia National Taiwan University Taipei 10617 Taiwan Intelligent Robotics Program of Industrial Technology Research Institute Department of Electrical and Control Engineering National Chiao Tung University HsinChu 310 Taiwan

Auditory perception is one of the most important functions for robotics applications. Microphone arrays are widely used for auditory perception in which the spatial structure of microphones is usually known. In practice, microphone array calibration can be tedious and other devices or means are required. The structure from sound (SFS) approach addresses the problem of simultaneously localizing a set of microphones and a set of acoustic events that provides a great flexibility to calibrate different setups of microphone arrays. However, the existing method does not take measurement uncertainty into account and does not provide uncertainty estimates of the SFS results. In this paper, we propose a probabilistic structure from sound (PSFS) approach using the unscented transform in which the uncertainties of the PSFS results are also available. In addition, a probabilistic sound source localization approach using the PSFS results is provided to improve sound source localization accuracy. The ample results of simulation and experiments using low-cost, off-the-shelf microphones demonstrate the feasibility and performance of the proposed PSFS approach. © 2009 VSP.

关键词： Microphone array

来源：评论

学校读者我要写书评

暂无评论

Hardware Architecture for Particle Swarm Optimization Using Floating-Point Arithmetic

Hardware Architecture for Particle Swarm Optimization Using ...

引用

International Conference on Intelligent Systems Design and Applications (ISDA)

作者： Daniel M. Muñoz Arboleda Carlos H. Llanos Leandro dos_S. Coelho Mauricio Ayala-Rincón Department of Mechanical Engineering University of Brasilia Brasília Brazil Industrial and Systems Engineering Graduate Program Pontificial Catholic University of Paraná Curitiba Brazil Departments of Computer Science and Mathematics University of Brasilia Brasília Brazil

High computational cost for solving large engineering optimization problems point out the design of parallel optimization algorithms. Population based optimization algorithms provide parallel capabilities that can be explored by their implementations done directly in hardware. This paper presents a hardware implementation of particle swarm optimization algorithms using an efficient floating-point arithmetic which performs the computations with high precision. All the architectures are parameterizable by bit-width, allowing the designer to choose the suitable format according to the requirements of the optimization problem. Synthesis and simulation results demonstrate that the proposed architecture achieves satisfactory results obtaining a better performance in therms of elapsed time than conventional software implementations.

关键词： Hardware Particle swarm optimization Floating-point arithmetic computer architecture Design optimization Computational efficiency Design engineering Algorithm design and analysis High performance computing Computational modeling

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：