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作者： Pop, Emil Leba, Monica System Control Applied Informatics and Computer Engineering Department University of Petrosani Str.Universitatii nr.20 332006 Romania

ISBN: (纸本)9783902661692

In this paper a new approach on digital controller design based on logic neural networks is presented. In the first part of the paper the logic neuron and its logic function are introduced. Based on this, there is written the general equation for a logic neural network, which allows the easy design of any digital controller directly from the truth table. This solution is validated through MatLab Simulink modeling and simulation and then is implemented in a VLSI chip using PALASM HDL language and also in a ladder diagram PLC device. This method has the advantages of simplicity and flexibility and represents an easy to design modern solution.

关键词： Neural networks

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Keystroke timing analysis for individual identification in Japanese free text typing

Keystroke timing analysis for individual identification in J...

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ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009

作者： Samura, Toshiharu Nishimura, Haruhiko Department of Electrical and Computer Engineering Akashi National College of Technology Hyogo Japan Graduate School of Applied Informatics University of Hyogo Hyogo Japan

ISBN: (纸本)9784907764296

We developed Web-based typing software in order to collect keystroke data on a LAN, and investigated several characteristics of keystroke dynamics in Japanese free text typing. We performed experiments on 112 subjects, representing three groups according to the number of letters they could type in five minutes. In this experiment, we extracted the feature indices from the keystroke timing for each single letter and for two-letter combinations composed of consonant and vowel pairs in Japanese text. Based on an identification method using a weighted Euclid distance, personal identification for the three groups was evaluated and its high performance was confirmed in proportion to the typing level of the group. © 2009 SICE.

关键词： Timing circuits

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Preface

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CEUR Workshop Proceedings 2010年 687卷

作者： Tijerino, Yuri A. Helmy, Tarek Department of Applied Informatics School of Policy Studies Kwansei Gakuin University 2-1 Gakuen Sanda 669-1337 Japan College of Computer Science and Engineering Department of Information and Computer Science King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia

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Early diagnosis of dementia based on intersubject whole-brain dissimilarities

Early diagnosis of dementia based on intersubject whole-brai...

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IEEE International Symposium on Biomedical Imaging

作者： S. Klein M. Loog F. van der Lijn T. den Heijer A. Hammers M. de Bruijne A. van der Lugt R.P.W. Duin M.M.B. Breteler W.J. Niessen Biomedical Imaging Group Rotterdam Departments of Radiology & Medical Informatics Erasmus MC-University Medical Center Rotterdam Rotterdam Netherlands Pattern Recognition Laboratory Faculty of Electrical Engineering Mathematics Computer Science Delft University of Technnology Netherlands Department of Neurology Erasmus MC-University Medical Center Rotterdam Rotterdam Netherlands Neurodis Foundation CERMEP PET Centre Lyon France MRC Clinical Sciences Centre and Division of Neuroscience and Mental Health Imperial College Hammersmith Hospital London UK Department of Computer Science University of Copenhagen Copenhagen Denmark Department of Radiology Erasmus MC-University Medical Center Rotterdam Rotterdam Netherlands Department of Epidemiology & Biostatistics Erasmus MC-University Medical Center Rotterdam Rotterdam Netherlands Imaging Science & Technology Department of Applied Sciences Delft University of Technnology Netherlands

ISBN: (纸本)9781424441259

This article studies the possibility of detecting dementia in an early stage, using nonrigid registration of MR brain scans in combination with dissimilarity-based pattern recognition techniques. Instead of focussing on the shape of a single brain structure, we take into account the shape differences within the entire brain. Imaging data was obtained from a longitudinal, population based study of the elderly. A set of 29 subjects was identified, who were asymptomatic at the time of scanning, but were diagnosed as having dementia within 0.7 to 5 years after the scan, and a set of 29 age and gender matched healthy controls were selected. Each subject was registered to all other subjects, using a nonrigid registration algorithm. Based on statistics of the deformation field in the brain, a dissimilarity measure was calculated between each pair of subjects, yielding a 58×58 dissimilarity matrix. A kNN classifier was trained on the dissimilarity matrix and the performance was tested in a leave-one-out experiment. A classification accuracy of 81% was attained (spec. 83%, sens. 79%). This demonstrates the potential of whole-brain intersubject dissimilarities to aid in early diagnosis of dementia.

关键词： Dementia Brain Pattern recognition Shape Radiology computer science Biomedical imaging Senior citizens Diseases Biomarkers

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Measurement of the Z→ττ cross section with the ATLAS detector

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Physical Review D 2011年第11期84卷 112006-112006页

作者： G. Aad B. Abbott J. Abdallah A. A. Abdelalim A. Abdesselam O. Abdinov B. Abi M. Abolins H. Abramowicz H. Abreu E. Acerbi B. S. Acharya D. L. Adams T. N. Addy J. Adelman M. Aderholz S. Adomeit P. Adragna T. Adye S. Aefsky J. A. Aguilar-Saavedra M. Aharrouche S. P. Ahlen F. Ahles A. Ahmad M. Ahsan G. Aielli T. Akdogan T. P. A. Åkesson G. Akimoto A. V. Akimov A. Akiyama M. S. Alam M. A. Alam J. Albert S. Albrand M. Aleksa I. N. Aleksandrov F. Alessandria C. Alexa G. Alexander G. Alexandre T. Alexopoulos M. Alhroob M. Aliev G. Alimonti J. Alison M. Aliyev P. P. Allport S. E. Allwood-Spiers J. Almond A. Aloisio R. Alon A. Alonso M. G. Alviggi K. Amako P. Amaral C. Amelung V. V. Ammosov A. Amorim G. Amorós N. Amram C. Anastopoulos N. Andari T. Andeen C. F. Anders K. J. Anderson A. Andreazza V. Andrei M-L. Andrieux X. S. Anduaga A. Angerami F. Anghinolfi N. Anjos A. Annovi A. Antonaki M. Antonelli A. Antonov J. Antos F. Anulli S. Aoun L. Aperio Bella R. Apolle G. Arabidze I. Aracena Y. Arai A. T. H. Arce J. P. Archambault S. Arfaoui J-F. Arguin E. Arik M. Arik A. J. Armbruster O. Arnaez C. Arnault A. Artamonov G. Artoni D. Arutinov S. Asai R. Asfandiyarov S. Ask B. Åsman L. Asquith K. Assamagan A. Astbury A. Astvatsatourov G. Atoian B. Aubert B. Auerbach E. Auge K. Augsten M. Aurousseau N. Austin G. Avolio R. Avramidou D. Axen C. Ay G. Azuelos Y. Azuma M. A. Baak G. Baccaglioni C. Bacci A. M. Bach H. Bachacou K. Bachas G. Bachy M. Backes M. Backhaus E. Badescu P. Bagnaia S. Bahinipati Y. Bai D. C. Bailey T. Bain J. T. Baines O. K. Baker M. D. Baker S. Baker F. Baltasar Dos Santos Pedrosa E. Banas P. Banerjee Sw. Banerjee D. Banfi A. Bangert V. Bansal H. S. Bansil L. Barak S. P. Baranov A. Barashkou A. Barbaro Galtieri T. Barber E. L. Barberio D. Barberis M. Barbero D. Y. Bardin T. Barillari M. Barisonzi T. Barklow N. Barlow B. M. Barnett R. M. Barnett A. Baroncelli G. Barone A. J. Barr F. Barreiro J. Barreiro Guimarães da Costa P. Barrillon R. Bartoldus A. E. Barton D. Bartsch V. Bartsch R. L. Bates L. Batkova J. R. Bat Fakultät für Mathematik und Physik Albert-Ludwigs-Universität Freiburg i.Br. Germany Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institut de Física d’Altes Energies and Universitat Autònoma de Barcelona and ICREA Barcelona Spain Section de Physique Université de Genève Geneva Switzerland Department of Physics Oxford University Oxford United Kingdom Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel LAL University Paris-Sud and CNRS/IN2P3 Orsay France INFN Sezione di Milano Italy Dipartimento di Fisica Università di Milano Milano Italy INFN Gruppo Collegato di Udine Italy ICTP Trieste Italy Physics Department Brookhaven National Laboratory Upton New York USA Department of Physics Hampton University Hampton Virginia USA Department of Physics Yale University New Haven Connecticut USA Max-Planck-Institut für Physik (Werner-Heisenberg-Institut) München Germany Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Department of Physics Queen Mary University of London London United Kingdom Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Department of Physics Brandeis University Waltham Massachusetts USA Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada Spain Institut für Physik Universität Mainz Mainz Germany Department of Physics Boston University Boston Massachusetts USA Department of Physics and Astronomy Stony Brook University Stony Brook New York USA Physics Department University of Texas at Dallas Richardson Texas USA INFN Sezione di Roma Tor Vergata Italy Dipartimento di Fisica Università di Roma Tor Vergata Roma Italy Dep

The Z→ττ cross section is measured with the ATLAS experiment at the LHC in four different final states determined by the decay modes of the τ leptons: muon-hadron, electron-hadron, electron-muon, and muon-muon. The analysis is based on a data sample corresponding to an integrated luminosity of 36 pb−1, at a proton-proton center-of-mass energy of s=7 TeV. Cross sections are measured separately for each final state in fiducial regions of high detector acceptance, as well as in the full phase space, over the mass region 66–116 GeV. The individual cross sections are combined and the product of the total Z production cross section and Z→ττ branching fraction is measured to be 0.97±0.07(stat)±0.06(syst)±0.03(lumi) nb, in agreement with next-to-next-to-leading order calculations.

关键词： LARGE Hadron Collider (France & Switzerland) MUONS LEPTONS (Nuclear physics) SPECIAL relativity (Physics) PROTON-proton interactions

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Search for pair production of first or second generation leptoquarks in proton-proton collisions at s=7 TeV using the ATLAS detector at the LHC

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Physical Review D 2011年第11期83卷 112006-112006页

作者： G. Aad B. Abbott J. Abdallah A. A. Abdelalim A. Abdesselam O. Abdinov B. Abi M. Abolins H. Abramowicz H. Abreu E. Acerbi B. S. Acharya D. L. Adams T. N. Addy J. Adelman M. Aderholz S. Adomeit P. Adragna T. Adye S. Aefsky J. A. Aguilar-Saavedra M. Aharrouche S. P. Ahlen F. Ahles A. Ahmad M. Ahsan G. Aielli T. Akdogan T. P. A. Åkesson G. Akimoto A. V. Akimov A. Akiyama M. S. Alam M. A. Alam S. Albrand M. Aleksa I. N. Aleksandrov F. Alessandria C. Alexa G. Alexander G. Alexandre T. Alexopoulos M. Alhroob M. Aliev G. Alimonti J. Alison M. Aliyev P. P. Allport S. E. Allwood-Spiers J. Almond A. Aloisio R. Alon A. Alonso M. G. Alviggi K. Amako P. Amaral C. Amelung V. V. Ammosov A. Amorim G. Amorós N. Amram C. Anastopoulos T. Andeen C. F. Anders K. J. Anderson A. Andreazza V. Andrei M-L. Andrieux X. S. Anduaga A. Angerami F. Anghinolfi N. Anjos A. Annovi A. Antonaki M. Antonelli S. Antonelli A. Antonov J. Antos F. Anulli S. Aoun L. Aperio Bella R. Apolle G. Arabidze I. Aracena Y. Arai A. T. H. Arce J. P. Archambault S. Arfaoui J-F. Arguin E. Arik M. Arik A. J. Armbruster O. Arnaez C. Arnault A. Artamonov G. Artoni D. Arutinov S. Asai R. Asfandiyarov S. Ask B. Åsman L. Asquith K. Assamagan A. Astbury A. Astvatsatourov G. Atoian B. Aubert B. Auerbach E. Auge K. Augsten M. Aurousseau N. Austin R. Avramidou D. Axen C. Ay G. Azuelos Y. Azuma M. A. Baak G. Baccaglioni C. Bacci A. M. Bach H. Bachacou K. Bachas G. Bachy M. Backes M. Backhaus E. Badescu P. Bagnaia S. Bahinipati Y. Bai D. C. Bailey T. Bain J. T. Baines O. K. Baker M. D. Baker S. Baker F. Baltasar Dos Santos Pedrosa E. Banas P. Banerjee Sw. Banerjee D. Banfi A. Bangert V. Bansal H. S. Bansil L. Barak S. P. Baranov A. Barashkou A. Barbaro Galtieri T. Barber E. L. Barberio D. Barberis M. Barbero D. Y. Bardin T. Barillari M. Barisonzi T. Barklow N. Barlow B. M. Barnett R. M. Barnett A. Baroncelli A. J. Barr F. Barreiro J. Barreiro Guimarães da Costa P. Barrillon R. Bartoldus A. E. Barton D. Bartsch V. Bartsch R. L. Bates L. Batkova J. R. Batley A. Battaglia M. Battist Fakultät für Mathematik und Physik Albert-Ludwigs-Universität Freiburg i.Br. Germany Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institut de Física d’Altes Energies and Universitat Autònoma de Barcelona and ICREA Barcelona Spain Section de Physique Université de Genève Geneva Switzerland Department of Physics Oxford University Oxford United Kingdom Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel LAL Univ. Paris-Sud and CNRS/IN2P3 Orsay France INFN Sezione di Milano Italy Dipartimento di Fisica Università di Milano Milano Italy INFN Gruppo Collegato di Udine Italy ICTP Trieste Italy Physics Department Brookhaven National Laboratory Upton New York USA Department of Physics Hampton University Hampton Virginia USA Department of Physics Yale University New Haven Connecticut USA Max-Planck-Institut für Physik (Werner-Heisenberg-Institut) München Germany Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Department of Physics Queen Mary University of London London United Kingdom Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Department of Physics Brandeis University Waltham Massachusetts USA Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada Portugal Institut für Physik Universität Mainz Mainz Germany Department of Physics Boston University Boston Massachusetts USA Department of Physics and Astronomy Stony Brook University Stony Brook New York USA Physics Department University of Texas at Dallas Richardson Texas USA INFN Sezione di Roma Tor Vergata Italy Dipartimento di Fisica Università di Roma Tor Vergata Roma Italy Depar

This paper describes searches for the pair production of first or second generation scalar leptoquarks using 35 pb−1 of proton-proton collision data recorded by the ATLAS detector at s=7 TeV. Leptoquarks are searched in events with two oppositely-charged muons or electrons and at least two jets, and in events with one muon or electron, missing transverse momentum and at least two jets. After event selection, the observed yields are consistent with the predicted backgrounds. Leptoquark production is excluded at the 95% CL for masses MLQ<376 (319) GeV and MLQ<422 (362) GeV for first and second generation scalar leptoquarks, respectively, when assuming the branching fraction of a leptoquark to a charged lepton is equal to 1.0 (0.5).

关键词： PAIR production QUARKS PROTON-proton interactions DETECTORS NUCLEAR reactions

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Properties of jets measured from tracks in proton-proton collisions at center-of-mass energy s=7 TeV with the ATLAS detector

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Physical Review D 2011年第5期84卷 054001-054001页

作者： G. Aad B. Abbott J. Abdallah A. A. Abdelalim A. Abdesselam O. Abdinov B. Abi M. Abolins H. Abramowicz H. Abreu E. Acerbi B. S. Acharya D. L. Adams T. N. Addy J. Adelman M. Aderholz S. Adomeit P. Adragna T. Adye S. Aefsky J. A. Aguilar-Saavedra M. Aharrouche S. P. Ahlen F. Ahles A. Ahmad M. Ahsan G. Aielli T. Akdogan T. P. A. Åkesson G. Akimoto A. V. Akimov A. Akiyama M. S. Alam M. A. Alam J. Albert S. Albrand M. Aleksa I. N. Aleksandrov F. Alessandria C. Alexa G. Alexander G. Alexandre T. Alexopoulos M. Alhroob M. Aliev G. Alimonti J. Alison M. Aliyev P. P. Allport S. E. Allwood-Spiers J. Almond A. Aloisio R. Alon A. Alonso M. G. Alviggi K. Amako P. Amaral C. Amelung V. V. Ammosov A. Amorim G. Amorós N. Amram C. Anastopoulos L. S. Ancu N. Andari T. Andeen C. F. Anders G. Anders K. J. Anderson A. Andreazza V. Andrei M-L. Andrieux X. S. Anduaga A. Angerami F. Anghinolfi N. Anjos A. Annovi A. Antonaki M. Antonelli A. Antonov J. Antos F. Anulli S. Aoun L. Aperio Bella R. Apolle G. Arabidze I. Aracena Y. Arai A. T. H. Arce J. P. Archambault S. Arfaoui J-F. Arguin E. Arik M. Arik A. J. Armbruster O. Arnaez C. Arnault A. Artamonov G. Artoni D. Arutinov S. Asai R. Asfandiyarov S. Ask B. Åsman L. Asquith K. Assamagan A. Astbury A. Astvatsatourov G. Atoian B. Aubert B. Auerbach E. Auge K. Augsten M. Aurousseau N. Austin G. Avolio R. Avramidou D. Axen C. Ay G. Azuelos Y. Azuma M. A. Baak G. Baccaglioni C. Bacci A. M. Bach H. Bachacou K. Bachas G. Bachy M. Backes M. Backhaus E. Badescu P. Bagnaia S. Bahinipati Y. Bai D. C. Bailey T. Bain J. T. Baines O. K. Baker M. D. Baker S. Baker E. Banas P. Banerjee Sw. Banerjee D. Banfi A. Bangert V. Bansal H. S. Bansil L. Barak S. P. Baranov A. Barashkou A. Barbaro Galtieri T. Barber E. L. Barberio D. Barberis M. Barbero D. Y. Bardin T. Barillari M. Barisonzi T. Barklow N. Barlow B. M. Barnett R. M. Barnett A. Baroncelli G. Barone A. J. Barr F. Barreiro J. Barreiro Guimarães da Costa P. Barrillon R. Bartoldus A. E. Barton D. Bartsch V. Bartsch R. L. Bates L. Batkova J. R. Batley A. Bat Fakultät für Mathematik und Physik Albert-Ludwigs-Universität Freiburg i.Br. Germany Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institut de Física d’Altes Energies and Universitat Autònoma de Barcelona and ICREA Barcelona Spain Section de Physique Université de Genève Geneva Switzerland Department of Physics Oxford University Oxford United Kingdom Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel LAL Université Paris-Sud and CNRS/IN2P3 Orsay France INFN Sezione di Milano Italy Dipartimento di Fisica Università di Milano Milano Italy INFN Gruppo Collegato di Udine Italy ICTP Trieste Italy Physics Department Brookhaven National Laboratory Upton New York USA Department of Physics Hampton University Hampton Virginia USA Department of Physics Yale University New Haven Connecticut USA Max-Planck-Institut für Physik (Werner-Heisenberg-Institut) München Germany Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Department of Physics Queen Mary University of London London United Kingdom Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Department of Physics Brandeis University Waltham Massachusetts USA Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada Spain Institut für Physik Universität Mainz Mainz Germany Department of Physics Boston University Boston Massachusetts USA Department of Physics and Astronomy Stony Brook University Stony Brook New York USA Physics Department University of Texas at Dallas Richardson Texas USA INFN Sezione di Roma Tor Vergata Italy Dipartimento di Fisica Università di Roma Tor Vergata Roma Italy Dep

Jets are identified and their properties studied in center-of-mass energy s=7 TeV proton-proton collisions at the Large Hadron Collider using charged particles measured by the ATLAS inner detector. Events are selected using a minimum bias trigger, allowing jets at very low transverse momentum to be observed and their characteristics in the transition to high-momentum fully perturbative jets to be studied. Jets are reconstructed using the anti-kt algorithm applied to charged particles with two radius parameter choices, 0.4 and 0.6. An inclusive charged jet transverse momentum cross section measurement from 4 GeV to 100 GeV is shown for four ranges in rapidity extending to 1.9 and corrected to charged particle-level truth jets. The transverse momenta and longitudinal momentum fractions of charged particles within jets are measured, along with the charged particle multiplicity and the particle density as a function of radial distance from the jet axis. Comparison of the data with the theoretical models implemented in existing tunings of Monte Carlo event generators indicates reasonable overall agreement between data and Monte Carlo. These comparisons are sensitive to Monte Carlo parton showering, hadronization, and soft physics models.

关键词： JETS (Nuclear physics) NUCLEAR reactions SCATTERING (Physics) NEUTRINO mass ATOMIC mass PROTON-proton interactions

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Video based motion tracking and river detection with an unmanned aerial vehicle

Video based motion tracking and river detection with an unma...

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33rd International Symposium on Remote Sensing of Environment, ISRSE 2009

作者： Correia, J. Bencatel, R. Marçal, A.R.S. Puga, A. Sousa, J.B. Gonçalves, G.M. Department of Electrical and Computer Engineering Faculty of Engineering University of Porto Portugal Department of Applied Mathematics Faculty of Sciences University of Porto Portugal Department of Mechanical Engineering and Industrial Management Faculty of Engineering University of Porto Portugal Department of Informatics Engineering Faculty of Engineering University of Porto Portugal

Here we present a motion tracking algorithm and a fast river detection algorithm using a near infrared camera on-board an UAV. These algorithms have to run on a slow PC104. The motion tracking algorithm is based on the Normalized Cross-Correlation and the river detection algorithm uses Meyer's Watershed method. Simulation results with a video are presented.

关键词： Infrared devices

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3D Internet for cognitive info-communication

3D Internet for cognitive info-communication

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10th International Symposium of Hungarian Researchers on Computational Intelligence and informatics, CINTI 2009

作者： Baranyi, Péter Solvang, Bjørn Hashimoto, Hideki Korondi, Péter Computer and Automation Research Institute Hungary Department of Industrial Engineering Narvik University College Norway Institute of Industrial Science University of Tokyo Japan Department of Mechatronics Budapest University of Technology and Economics Optics and Applied Informatics Hungary

The paper presents new research directions both for 3D internet and cognitive info-communication. It reviews basic concepts and definitions and gives some "historical" view that helps to understand current i... 详细信息

关键词： 3D internet Cognitive info-communication Robot control

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Extending X3D-based educational platform for mathematics with multicast networking capabilities

Extending X3D-based educational platform for mathematics wit...

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8th IASTED International Conference on Web-based Education, WBE 2009

作者： Malamos, Athanasios G. Mamakis, Georgios Sympa, Paraskevi Kotanitsi, Eleni Kaliakatsos, Yannis Kladis, Dionysios Crespo, Alfredo Javier Gonel Lopez, Alvaro Zubizarreta Department of Applied Informatics and Multimedia Technological Educational Institute of Crete Stavromenos TEI Crete Campus Herakleion Crete 71004 Greece Department of Computer Engineering University of Valladolid Plaza de Sta. Cruz no 8 47002 Valladolid Spain

ISBN: (纸本)9780889867895

Mathematics is an area of nature that lies between philosophy and reality. Teaching mathematics has always been an intriguing task, especially in areas of mathematics where visualization is overcome by conceptualism. We have developed a VR educational platform for mathematics named Educational Virtual Environment - Mathematics (EViE-m). EViE-m platform offers an environment where the user tries to construct an organized city through answering to simple or complex mathematical questions that offer the possibility of gaining access to buildings and technology trees. Yet, modern educational research proposes that one of the key factors in educational advancement for the learner may be accomplished through collaboration and competition. That being our basis, we extended the educational platform EViE-m, with networking capabilities using modern peer - to - peer technology.

关键词： Trees (mathematics)

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