http://www.bibsonomy.org/burst/tag/system:unfiledBibSonomy BuRST Feed for /tag/system:unfiled2008-08-21T12:49:10+02:00Geometric Aspects of Empirical Modelling: Issues in Design and Implementation - Cartwright (ResearchIndex)http://www.bibsonomy.org/bibtex/28d62bf23bae3af0d372aee0fa210c870/tonitoni2008-06-05T14:06:36+02:00system:unfiled <span style="color:#555555;">R. <a href="http://www.bibsonomy.org/author/Cartwright">Cartwright</a> </span>(<em>1998</em>)Thu Jun 05 14:06:36 CEST 2008Geometric Aspects of Empirical Modelling: Issues in Design and Implementation1998system:unfiled Empirical modelling is a new approach to the construction of physical typically computer-based artefacts. Model construction proceeds in an open-ended and exploratory manner in association with the identication of observables, dependency and agency. Knowledge of the referent is acquired through experiment, and | through the use of metaphor | interaction with the artefact is contrived so as to resemble interaction with the referent. Previous research has demonstrated the potential for empirical modelling in many areas. These include concurrent engineering, virtual reality and reactive systems development. This thesis examines the relationship between empirical modelling and geometric modelling on computer systems. Empirical modelling is suggested as complementary to variational and parametric modelling techniques commonly used in software packages for geometric modelling. E ective techniques for exploiting richer geometric models in visual metaphors within empirical modelling are also developed. Technical issues arising from geometric aspects of existing empirical modelling tools and case-studies are reviewed. The aim is improve the e ciency of existing implementations, and to introduce data representations that better support geometric modelling. To achieve this, a mathematical model the DM Model for representing the dependency between observables is introduced, and this is used as the basis for a new algorithm for propagating updates through observables. A novel computing machine the DAM Machine that maintains dependencies representing indivisible relationships between words in computer store is derived from the DM Model. Examples of the use of this machine for the representation of geometry are presented. In implementation, a comparative e ciency gain is achieved by the DAM Machine over existing tools. This allows for the real-time animation of models. A novel and general approach to the representation of data, suitable for integrating empirical modelling and general Java applications, with additional support for collaborative working, is developed. Object-oriented programming methods provide the foundation for new tools to support this representation. The empirical world class library allows a programmer to implement new applications for shape modelling that support empirical modelling and integrate a wide range of shape representations. A method of integrating these geometric techniques into spreadsheet-like environments that are well-adapted to support empirical modelling is proposed. Elements for a modular dynamic geometry systemhttp://www.bibsonomy.org/bibtex/202df318f08382424d5f3b608ee35c94d/tonitoni2008-05-22T13:05:46+02:00system:unfiled <span style="color:#555555;">M. <a href="http://www.bibsonomy.org/author/Freixas">Freixas</a> and R. <a href="http://www.bibsonomy.org/author/Joan Arinyo">Joan Arinyo</a> and A. <a href="http://www.bibsonomy.org/author/Soto-Riera">Soto-Riera</a> </span><em>SAC '08: Proceedings of the 2008 ACM symposium on Applied computing, </em><em>page1816--1820. </em><em>New York, NY, USA, </em><em>ACM, </em>(<em>2008</em>)Thu May 22 13:05:46 CEST 2008New York, NY, USASAC '08: Proceedings of the 2008 ACM symposium on Applied computing1816--1820Elements for a modular dynamic geometry system2008system:unfiled Dynamic geometry systems are tools for geomotric visualization. They allow the user to define geometric elements, establish relationships between them and explore the dynamic behavior of the remaining geometric elements when one of them is moved. In this work we propose a modular architecture for dynamic geometry systems built upon a set of functional units which will allow to apply some well known results from the Geometric Constraint Solving field.http://www.bibsonomy.org/bibtex/23cbf2dbd2285141ef5798f5ef6e6f441/tonitoni2008-05-20T14:27:22+02:00system:unfiled <span style="color:#555555;">Hisham <a href="http://www.bibsonomy.org/author/Haddad">Haddad</a> (eds.). </span><em>ACM, </em>(<em>2006</em>)Tue May 20 14:27:22 CEST 2008SACProceedings of the 2006 ACM Symposium on Applied Computing (SAC), Dijon, France, April 23-27, 20062006system:unfiled http://www.bibsonomy.org/bibtex/29cb7f12d620be9ab2364b2c7245e1002/tonitoni2008-05-20T14:22:25+02:00system:unfiled <span style="color:#555555;">Roger L. <a href="http://www.bibsonomy.org/author/Wainwright">Wainwright</a> and Hisham <a href="http://www.bibsonomy.org/author/Haddad">Haddad</a> (eds.). </span><em>ACM, </em>(<em>2008</em>)Tue May 20 14:22:25 CEST 2008SACProceedings of the 2008 ACM Symposium on Applied Computing (SAC), Fortaleza, Ceara, Brazil, March 16-20, 20082008system:unfiled http://www.bibsonomy.org/bibtex/26fb9c269099ab52f2ea3201f22079725/tonitoni2008-05-20T14:20:18+02:00system:unfiled <span style="color:#555555;">Yookun <a href="http://www.bibsonomy.org/author/Cho">Cho</a> and Roger L. <a href="http://www.bibsonomy.org/author/Wainwright">Wainwright</a> and Hisham <a href="http://www.bibsonomy.org/author/Haddad">Haddad</a> and Sung Y. <a href="http://www.bibsonomy.org/author/Shin">Shin</a> and Yong Wan <a href="http://www.bibsonomy.org/author/Koo">Koo</a> (eds.). </span><em>ACM, </em>(<em>2007</em>)Tue May 20 14:20:18 CEST 2008SACProceedings of the 2007 ACM Symposium on Applied Computing (SAC), Seoul, Korea, March 11-15, 20072007system:unfiled http://www.bibsonomy.org/bibtex/27b0fc49b1b98711558e29b210b499f9f/tonitoni2008-05-20T14:13:33+02:00system:unfiled <span style="color:#555555;">Peter M. A. <a href="http://www.bibsonomy.org/author/Sloot">Sloot</a> and Chih Jeng Kenneth <a href="http://www.bibsonomy.org/author/Tan">Tan</a> and Jack <a href="http://www.bibsonomy.org/author/Dongarra">Dongarra</a> and Alfons G. <a href="http://www.bibsonomy.org/author/Hoekstra">Hoekstra</a> (eds.). </span><em>volume2330ofLecture Notes in Computer Science, </em><em>Springer, </em>(<em>2002</em>)Tue May 20 14:13:33 CEST 2008International Conference on Computational ScienceLecture Notes in Computer ScienceComputational Science - ICCS 2002, International Conference, Amsterdam, The Netherlands, April 21-24, 2002. Proceedings, Part II23302002system:unfiled http://www.bibsonomy.org/bibtex/2a5f31212b5a3953d1664e72c9da2fa4d/tonitoni2008-05-20T14:03:47+02:00system:unfiled <span style="color:#555555;"> </span><em>ACM, </em>(<em>2003</em>)Tue May 20 14:03:47 CEST 2008Symposium on Solid Modeling and ApplicationsProceedings of the Eighth ACM Symposium on Solid Modeling and Applications 2003, Seattle, Washington, USA, June 16 - 20, 20032003system:unfiled http://www.bibsonomy.org/bibtex/251657c382fef42c2483393084319457b/tomptomp2008-03-19T13:18:10+01:00system:unfiled <span style="color:#555555;">Tom&#225;&#353; <a href="http://www.bibsonomy.org/author/Pitner">Pitner</a> and Pavel <a href="http://www.bibsonomy.org/author/Drášil">Dr&#225;&#353;il</a> </span><em>Proceedings of the 6th International Conference on Knowledge Management, </em><em>page543--1092. </em><em>Graz, Austria, </em><em>Graz University of Technology, </em>(<em>2006</em>)Wed Mar 19 13:18:10 CET 2008Graz, AustriaProceedings of the 6th International Conference on Knowledge Management543--1092An E-learning 2.0 Environment -- Principles, Technology and Prototype2006system:unfiled http://www.bibsonomy.org/bibtex/298aa068b4bbab095ccf09a99b5635be7/tomptomp2008-03-19T13:16:36+01:00system:unfiled <span style="color:#555555;">Robert <a href="http://www.bibsonomy.org/author/Tolksdorf">Tolksdorf</a> and Rainer <a href="http://www.bibsonomy.org/author/Eckstein">Eckstein</a> (eds.). </span><em>XML-Clearinghouse, </em>(<em>2003</em>)Wed Mar 19 13:16:36 CET 2008Berliner XML Tage{Berliner XML Tage 2003, 13.-15. Oktober 2003 in Berlin}2003system:unfiled http://www.bibsonomy.org/bibtex/25d4665c1ba11265f2a25b7772c8354e6/tomptomp2008-03-19T13:16:36+01:00system:unfiled <span style="color:#555555;">Tom&#225;&#353; <a href="http://www.bibsonomy.org/author/Pitner">Pitner</a> </span><em>Berliner XML Tage, </em><em>page361-369. </em><em>XML-Clearinghouse, </em>(<em>2003</em>)Wed Mar 19 13:16:36 CET 2008Berliner XML TageDBLP:conf/bxml/2003361-369{Lightweight Personalization of XML E-learning Materials}2003system:unfiled http://www.bibsonomy.org/bibtex/28eb6413e526f2f05491b64c4a3a97f49/tomptomp2008-03-19T13:16:36+01:00system:unfiled <span style="color:#555555;">Tom&#225;&#353; <a href="http://www.bibsonomy.org/author/Pitner">Pitner</a> </span><em>Journal of Universal Computer Science</em><em>June2004. </em>Wed Mar 19 13:16:36 CET 2008Proceedings of the 4th International Conference on Knowledge Management, I-KNOW'04Journal of Universal Computer ScienceJune600-608{Adaptive XML Inclusions for the Effective Support of Hybrid Learning}42004system:unfiled http://www.bibsonomy.org/bibtex/219fa494662b70021c14f14fc66f5d86d/tomptomp2008-03-19T13:16:36+01:00system:unfiled <span style="color:#555555;">Pavel <a href="http://www.bibsonomy.org/author/Drášil">Dr&#225;&#353;il</a> and Ivo <a href="http://www.bibsonomy.org/author/Bažant">Ba&#382;ant</a> and Boris <a href="http://www.bibsonomy.org/author/Šimák">&#352;im&#225;k</a> and Tom&#225;&#353; <a href="http://www.bibsonomy.org/author/Pitner">Pitner</a> </span><em>Technical Report</em>(<em>2004</em>) <em>in Czech, urlhttp://www.cesnet.cz/doc/techzpravy/2004/elearning/elearning24.pdf . </em>Wed Mar 19 13:16:36 CET 2008Prague, Czech RepublicTechnical Reportin Czech, \url{http://www.cesnet.cz/doc/techzpravy/2004/elearning/elearning24.pdf}24{Standards Relevant for E-Learning}20042004system:unfiled http://www.bibsonomy.org/bibtex/29f82f0e939a6404729efd9fc16cca217/tomptomp2008-03-19T13:16:36+01:00system:unfiled <span style="color:#555555;">Tom&#225;&#353; <a href="http://www.bibsonomy.org/author/Pitner">Pitner</a> </span><em>XTech 2005 Proceedings, USA, </em><em>Idealliance, </em>(<em>2005</em>)Wed Mar 19 13:16:36 CET 2008XTech 2005 Proceedings, USA{Improving Document Reusability with Adaptive XML Inclusions}2005system:unfiled http://www.bibsonomy.org/bibtex/224858633294feeeca634bd7ce3bedb24/tomptomp2008-03-19T13:16:36+01:00system:unfiled <span style="color:#555555;">Tom&#225;&#353; <a href="http://www.bibsonomy.org/author/Pitner">Pitner</a> and Jaroslav <a href="http://www.bibsonomy.org/author/Ráček">R&#225;&#269;ek</a> </span><em>International Conference on Information and Communication Technology in Education, </em><em>Ro&#382;nov, Czech Republic, </em><em>92005. </em>Wed Mar 19 13:16:36 CET 2008Rožnov, Czech RepublicInternational Conference on Information and Communication Technology in Education9{Blended Learning: Concepts, Frameworks, and Tools}2005system:unfiled http://www.bibsonomy.org/bibtex/22b940219e6583956c7c68bc76dab27cc/tomptomp2008-03-19T13:16:36+01:00system:unfiled <span style="color:#555555;">Tom&#225;&#353; <a href="http://www.bibsonomy.org/author/Pitner">Pitner</a> and Jaroslav <a href="http://www.bibsonomy.org/author/Ráček">R&#225;&#269;ek</a> and Laurent <a href="http://www.bibsonomy.org/author/Schumacher">Schumacher</a> and Geoffrey <a href="http://www.bibsonomy.org/author/Miche">Miche</a> </span><em>Proceedings of the ICL Conference, </em><em>Villach, Austria, </em><em>Kassel University Press, </em><em>92006. </em>Wed Mar 19 13:16:36 CET 2008Villach, AustriaProceedings of the ICL Conference9{A Framework to Enable Enriched Training Experience}2006system:unfiled http://www.bibsonomy.org/bibtex/2c5630896a3624deebf93a3f350c0811f/tomptomp2008-03-19T13:16:36+01:00system:unfiled <span style="color:#555555;">Jacques <a href="http://www.bibsonomy.org/author/Thévenot">Th&#233;venot</a> and Laurent <a href="http://www.bibsonomy.org/author/Schumacher">Schumacher</a> and Geoffrey <a href="http://www.bibsonomy.org/author/Miche">Miche</a> and Nathalie <a href="http://www.bibsonomy.org/author/Dagorn">Dagorn</a> and Tom&#225;&#353; <a href="http://www.bibsonomy.org/author/Pitner">Pitner</a> and Luc <a href="http://www.bibsonomy.org/author/Vandenabeele">Vandenabeele</a> and Herv&#233; <a href="http://www.bibsonomy.org/author/Rizzi">Rizzi</a> </span><em>Proceedings of the 12th Conference of the Association Information and Management (AIM), </em><em>Lausanne, Switzerland, </em><em>Association Information and Management (AIM), </em>(<em>2007</em>)Wed Mar 19 13:16:36 CET 2008Lausanne, SwitzerlandProceedings of the 12th Conference of the Association Information and Management (AIM){The challenge of integrating open-source and proprietary applications as part of a European-funded pilot project}2007system:unfiled http://www.bibsonomy.org/bibtex/225f60eaf11f9a302db3f50ed0d238189/tomptomp2008-03-19T13:16:36+01:00system:unfiled <span style="color:#555555;">Pavel <a href="http://www.bibsonomy.org/author/Drášil">Dr&#225;&#353;il</a> and Tom&#225;&#353; <a href="http://www.bibsonomy.org/author/Pitner">Pitner</a> </span><em>Proceedings of SCO Conference, </em><em>Brno, Czech Republic, </em><em>52007. </em>Wed Mar 19 13:16:36 CET 2008Brno, Czech RepublicProceedings of SCO Conference5{Achieving Reusability in E-learning}2007system:unfiled http://www.bibsonomy.org/bibtex/238761b660761ec79e918af39f72d6b64/tomptomp2008-03-19T13:16:36+01:00system:unfiled <span style="color:#555555;">Renate <a href="http://www.bibsonomy.org/author/Motschnig">Motschnig</a> and Tom&#225;&#353; <a href="http://www.bibsonomy.org/author/Pitner">Pitner</a> and Jaroslav <a href="http://www.bibsonomy.org/author/Ráček">R&#225;&#269;ek</a> </span><em>International Conference on Information and Communication Technology in Education, </em><em>Ro&#382;nov, Czech Republic, </em><em>92007. </em>Wed Mar 19 13:16:36 CET 2008Rožnov, Czech RepublicInternational Conference on Information and Communication Technology in Education9{Person Centered, Technology Enhanced Learning as Exemplified in a Course on Communication and Soft Skills at the MU Brno}2007system:unfiled http://www.bibsonomy.org/bibtex/283724580b69438e3e3f877bfd6d3e175/akpeakpe2008-01-23T13:40:02+01:00system:unfiled <span style="color:#555555;">Antonio L. <a href="http://www.bibsonomy.org/author/Antunes">Antunes</a> </span><em>Dtv, </em><em>October1998. </em>Wed Jan 23 13:40:02 CET 2008PaperbackOctoberDie nat\"{u}rliche Ordnung der Dinge.1998system:unfiled http://www.bibsonomy.org/bibtex/2a78c5c3abc74d22260c98942fbf8c0c8/leinweberleinweber2007-10-19T14:39:17+02:00system:unfiled <span style="color:#555555;">E <a href="http://www.bibsonomy.org/author/Yaksi">Yaksi</a> and B <a href="http://www.bibsonomy.org/author/Judkewitz">Judkewitz</a> and RW <a href="http://www.bibsonomy.org/author/Friedrich">Friedrich</a> </span><em>PLoS Biology</em><em>5(7):e178</em>(<em>2007</em>)Fri Oct 19 14:39:17 CEST 2007PLoS Biology7e178Topological Reorganization of Odor Representations in the Olfactory Bulb52007system:unfiled Odors are initially represented in the olfactory bulb (OB) by patterns of sensory input across the array of glomeruli. Although activated glomeruli are often widely distributed, glomeruli responding to stimuli sharing molecular features tend to be loosely clustered and thus establish a fractured chemotopic map. Neuronal circuits in the OB transform glomerular patterns of sensory input into spatiotemporal patterns of output activity and thereby extract information about a stimulus. It is, however, unknown whether the chemotopic spatial organization of glomerular inputs is maintained during these computations. To explore this issue, we measured spatiotemporal patterns of odor-evoked activity across thousands of individual neurons in the zebrafish OB by temporally deconvolved two-photon Ca2+ imaging. Mitral cells and interneurons were distinguished by transgenic markers and exhibited different response selectivities. Shortly after response onset, activity patterns exhibited foci of activity associated with certain chemical features throughout all layers. During the subsequent few hundred milliseconds, however, MC activity was locally sparsened within the initial foci in an odor-specific manner. As a consequence, chemotopic maps disappeared and activity patterns became more informative about precise odor identity. Hence, chemotopic maps of glomerular input activity are initially transmitted to OB outputs, but not maintained during pattern processing. Nevertheless, transient chemotopic maps may support neuronal computations by establishing important synaptic interactions within the circuit. These results provide insights into the functional topology of neural activity patterns and its potential role in circuit function.