Welcome to TiddlyWiki created by Jeremy Ruston, Copyright © 2007 UnaMesa Association
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Background: #fff
Foreground: #000
PrimaryPale: #8cf
PrimaryLight: #18f
PrimaryMid: #04b
PrimaryDark: #014
SecondaryPale: #ffc
SecondaryLight: #fe8
SecondaryMid: #db4
SecondaryDark: #841
TertiaryPale: #eee
TertiaryLight: #ccc
TertiaryMid: #999
TertiaryDark: #666
Error: #f88
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body {font-size:.75em; font-family:arial,helvetica; margin:0; padding:0;}
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ol ol ol {list-style-type:lower-roman;}
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/* the 'a' is required for IE, otherwise it renders the whole tiddler in bold */
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#mainMenu .tiddlyLinkNonExisting,
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.tab {margin:0em 0em 0em 0.25em; padding:2px;}
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.tabContents li.listLink { margin-left:.75em;}
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.tagClear {clear:both;}
.footer {font-size:.9em;}
.footer li {display:inline;}
.annotation {padding:0.5em; margin:0.5em;}
* html .viewer pre {width:99%; padding:0 0 1em 0;}
.viewer {line-height:1.4em; padding-top:0.5em;}
.viewer .button {margin:0em 0.25em; padding:0em 0.25em;}
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table.listView {font-size:0.85em; margin:0.8em 1.0em;}
table.listView th, table.listView td, table.listView tr {padding:0px 3px 0px 3px;}
.viewer pre {padding:0.5em; margin-left:0.5em; font-size:1.2em; line-height:1.4em; overflow:auto;}
.viewer code {font-size:1.2em; line-height:1.4em;}
.editor {font-size:1.1em;}
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.sparkline {line-height:1em;}
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.zoomer {font-size:1.1em; position:absolute; overflow:hidden;}
.zoomer div {padding:1em;}
* html #backstage {width:99%;}
* html #backstageArea {width:99%;}
#backstageArea {display:none; position:relative; overflow: hidden; z-index:150; padding:0.3em 0.5em 0.3em 0.5em;}
#backstageToolbar {position:relative;}
#backstageArea a {font-weight:bold; margin-left:0.5em; padding:0.3em 0.5em 0.3em 0.5em;}
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.backstagePanelFooter a {padding:0.2em 0.4em 0.2em 0.4em;}
#backstageCloak {display:none; z-index:20; position:absolute; width:100%; height:100px;}
.whenBackstage {display:none;}
.backstageVisible .whenBackstage {display:block;}
/*}}}*/
/***
StyleSheet for use when a translation requires any css style changes.
This StyleSheet can be used directly by languages such as Chinese, Japanese and Korean which need larger font sizes.
***/
/*{{{*/
body {font-size:0.8em;}
#sidebarOptions {font-size:1.05em;}
#sidebarOptions a {font-style:normal;}
#sidebarOptions .sliderPanel {font-size:0.95em;}
.subtitle {font-size:0.8em;}
.viewer table.listView {font-size:0.95em;}
/*}}}*/
/*{{{*/
@media print {
#mainMenu, #sidebar, #messageArea, .toolbar, #backstageButton, #backstageArea {display: none ! important;}
#displayArea {margin: 1em 1em 0em 1em;}
/* Fixes a feature in Firefox 1.5.0.2 where print preview displays the noscript content */
noscript {display:none;}
}
/*}}}*/
<!--{{{-->
<div class='header' macro='gradient vert [[ColorPalette::PrimaryLight]] [[ColorPalette::PrimaryMid]]'>
<div class='headerShadow'>
<span class='siteTitle' refresh='content' tiddler='SiteTitle'></span>
<span class='siteSubtitle' refresh='content' tiddler='SiteSubtitle'></span>
</div>
<div class='headerForeground'>
<span class='siteTitle' refresh='content' tiddler='SiteTitle'></span>
<span class='siteSubtitle' refresh='content' tiddler='SiteSubtitle'></span>
</div>
</div>
<div id='mainMenu' refresh='content' tiddler='MainMenu'></div>
<div id='sidebar'>
<div id='sidebarOptions' refresh='content' tiddler='SideBarOptions'></div>
<div id='sidebarTabs' refresh='content' force='true' tiddler='SideBarTabs'></div>
</div>
<div id='displayArea'>
<div id='messageArea'></div>
<div id='tiddlerDisplay'></div>
</div>
<!--}}}-->
<!--{{{-->
<div class='toolbar' macro='toolbar [[ToolbarCommands::ViewToolbar]]'></div>
<div class='title' macro='view title'></div>
<div class='subtitle'><span macro='view modifier link'></span>, <span macro='view modified date'></span> (<span macro='message views.wikified.createdPrompt'></span> <span macro='view created date'></span>)</div>
<div class='tagging' macro='tagging'></div>
<div class='tagged' macro='tags'></div>
<div class='viewer' macro='view text wikified'></div>
<div class='tagClear'></div>
<!--}}}-->
<!--{{{-->
<div class='toolbar' macro='toolbar [[ToolbarCommands::EditToolbar]]'></div>
<div class='title' macro='view title'></div>
<div class='editor' macro='edit title'></div>
<div macro='annotations'></div>
<div class='editor' macro='edit text'></div>
<div class='editor' macro='edit tags'></div><div class='editorFooter'><span macro='message views.editor.tagPrompt'></span><span macro='tagChooser'></span></div>
<!--}}}-->
To get started with this blank TiddlyWiki, you'll need to modify the following tiddlers:
* SiteTitle & SiteSubtitle: The title and subtitle of the site, as shown above (after saving, they will also appear in the browser title bar)
* MainMenu: The menu (usually on the left)
* DefaultTiddlers: Contains the names of the tiddlers that you want to appear when the TiddlyWiki is opened
You'll also need to enter your username for signing your edits: <<option txtUserName>>
These InterfaceOptions for customising TiddlyWiki are saved in your browser
Your username for signing your edits. Write it as a WikiWord (eg JoeBloggs)
<<option txtUserName>>
<<option chkSaveBackups>> SaveBackups
<<option chkAutoSave>> AutoSave
<<option chkRegExpSearch>> RegExpSearch
<<option chkCaseSensitiveSearch>> CaseSensitiveSearch
<<option chkAnimate>> EnableAnimations
----
Also see AdvancedOptions
1999 - 2000
''Automatic Acquisition of ~Named-Entity Recognition Grammars for Greek''
Rename this tiddler to 'ColorPalette' to enable this color scheme
Background: #ffc
Foreground: #000
PrimaryPale: #fc8
PrimaryLight: #f81
PrimaryMid: #b40
PrimaryDark: #410
SecondaryPale: #ffc
SecondaryLight: #fe8
SecondaryMid: #db4
SecondaryDark: #841
TertiaryPale: #e88
TertiaryLight: #c66
TertiaryMid: #944
TertiaryDark: #633
[<img[BOEMIE Logo|logoboemie.gif]]''Bootstrapping Ontology evolution using Multimedia Information Extraction''.
BOEMIE is a european ~FP6 co-funded project. Analytical information can be found at the official [[site|http://www.boemie.org]].
My research focuses on devising multimedia analysis algorithms that can
* allow for //analysing// content, //learning// from annotated corpora and self-//expanding// their domain of application.
* allow to recursively analysing multimedia information (''webpages'', ''audiovisual streams''), by spitting their content into their embedded elements and then fuse the analysis results
* combine ''ontological representation'' of the domain with ''machine learnable'' classification and feature extraction techniques.
One of the great strengths of TiddlyWiki is the way that its interface can be customised by editting various shadow tiddlers. However, a problem that has consistently emerged is the difficulty of reconciling the needs of authors, who need access to the full array of TiddlyWiki features, and the needs of ordinary readers, who generally benefit from seeing a restricted set of functionality more suited to their needs.
The new backstage area in release 2.2 offers a solution to this conundrum by providing a consistent way of accessing authoring functionality that is independent of the interface customisations (so, even if you blast away the contents of your PageTemplate, you can still access the backstage area).
The backstage area is only available when a TiddlyWiki is edittable - typically meaning that it's been opened off of a {{{file://}}} URL. It appears as an unobtrusive link in the topright corner of the page. Clicking it reveals the backstage toolbar consisting of commands like {{{saveChanges}}} and drop-down tasks like ImportTiddlers, SyncMacro, PluginManager and Tweak (which provides access to the new OptionsMacro).
Here is a [[link|http://www.iit.demokritos.gr/~bgat]] to his homepage
''Computer Aided Semantic Annotation of Multimedia''
CASAM is a european ~FP7 co-funded project. Analytical information can be found at the official [[site|http://www.casam-project.eu]].
Members of the CASAM project have also access to an alfresco server located [[here|http://www.iisa-innov.com:8080/alfresco/faces/jsp/login.jsp]].
My research focuses on devising multimedia analysis algorithms (audio,video) with the following properties,
* capable of ''exploiting knowledge'' in various degrees, in order to improve the analysis accuracy,
* ''adaptable'' to new domains of application, given annotated or semi-annotated corpora,
* capable of balancing ''acuracy vs. speed'', in order to allow on-line interaction with the end-user.
Background: #fff
Foreground: #000
PrimaryPale: #8cf
PrimaryLight: #18f
PrimaryMid: #04b
PrimaryDark: #014
SecondaryPale: #ffc
SecondaryLight: #fe8
SecondaryMid: #db4
SecondaryDark: #841
TertiaryPale: #eee
TertiaryLight: #ccc
TertiaryMid: #999
TertiaryDark: #666
Error: #f88
*[[Societes]]
*[[Journals]]
*[[Conferences]]
Here is a calendar of conferences related to my research interests. Entries refer to the article submission deadlines.
<html>
<iframe src="https://www.google.com/calendar/embed?showTitle=&showNav=0&showDate=0&showPrint=0&showTabs=1&showTz=0&mode=AGENDA&height=300&wkst=1&bgcolor=%23FFFFFF&src=30unul1k9if3h789omd0nm6lhs%40group.calendar.google.com&color=%238C500B&ctz=Europe%2FAthens" style=" border:solid 1px #AAA " width="800" height="300" frameborder="1" scrolling="no"></iframe>
</html>
Recent conferences I have reviewed articles for
* 19th International Conference on Pattern Recognition [[(ICPR 2008|http://www.icpr2008.org]])
* 5th European Semantic Web Conference ([[ESWC 2008|http://www.eswc2008.org/]])
* 9th International Conference on Document Analysis and Recofnition ([[ICDAR 2007|http://www.icdar2007.org/]])
* 17th European Conference on Machine Learning ([[ECML 2007|http://www.ecmlpkdd2006.org]])
* 4th Hellenic Conference on Artificial Intelligence ([[SETN 2006|http://www.setn06.gr/]])
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*[[Contacts at NCSR "Demokritos"]]
*[[Contacts at UOP]]
*[[Personal Contacts]]
Sergios Petridis
Collaborating researcher
Computational Inteligence Laboratory ([[CIL|http://www.iit.demokritos.gr/cil/]])
Institute of Informatics and Telecommunications ([[IIT|http://www.iit.demokritos.gr]])
National Center For Scientific Research "Demokritos" ([[NCSR "Demokritos"|http://www.demokritos.gr]])
Ag. Paraskevi 15310,
P.O. BOX 60228,
Greece
petridis [at] iit.demokritos.gr
(tel) +(30) 2106503175
(fax) +(30) 2106532175
http://www.iit.demokritos.gr/cil/members/cil_mem_petridis.htm
Sergios Petridis
Collaborating Lecturer
Telecommunications Science and Technology Department
University of Peloponnese,
Terma Karaiskaki,
Tripoli 22100
Greece
serxio[@]uop.gr
I' m currently a lecturer at the [[Telecommunication Department|http://depts.uop.gr/departments/depart2/]], University of [[Peloponnese|http://www.uop.gr]].
You can reach me there using [[these contacts|Contacts at UOP]]
Here is the list of courses I lecture:
* Undergraduate Course on ''Speech Processing and Recognition''
* Undergraduate Course on ''Digital Image Processing''
Information regarding these courses can be found at the [[e-class platform|http://eclass.uop.gr/]] of the university.
Past Courses:
* Assistant Lecturer at University "Pierre et Marie Curie ([[Paris 6|http://www.upmc.fr/FR/info/00]]). Course: ''Introduction to Algorithms''
* Assistant Lecturer at the Technical University of Montreuil in Paris ([[IUT|http://www.iut.univ-paris8.fr/]]). Course: ''Database Management Systems''.
* [[Research]] at NCSR "Demokritos"
* [[Lecturer|Courses]] at University of Peloponnese
* Co-organiser of the [[Seminar Series|http://www.iit.demokritos.gr/IIT_SS/en/index.html]]. at I.I.&T., NCSR
* Participating at the [[BOEMIE]] project
* Participating at the [[CASAM]] project
* Organising the [[CILForge]] source project at CIL, NCSR
* Member of the [[PASCAL|http://www.pascal-network.org/]] network of excellence
You can wrap any text in an HTML {{{<span>}}} or {{{<div>}}} with a specified CSS class. This allows custom CSS styling in a nice, modular way. By placing a rule in your StyleSheet tiddler like {{{.wrappingClass{color: #666; background: #bbb} }}} you can markup a piece of text in the tiddler using this code:
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[[Research Interests]] [[Current and Recent Activities]] [[Publications]]
Here is a [[link|http://www.iit.demokritos.gr/~dkosmo]] to his homepage
Here is a [[link|http://www.iit.demokritos.gr/cil/]] to his homepage
Here is a [[link|http://www.iit.demokritos.gr/~izavits]] to his homepage
Here is a [[link|http://www.iit.demokritos.gr/~paliourg]] to his homepage
Here is a [[link|http://www.ellogon.org/petasis/]] to his homepage
2003 - 2004
''Internal Waters Integrated surveillance methods for pollution measurement and risk assessment''
//Note that the popular [[Firebug|http://www.joehewitt.com/software/firebug/]] extension for Firefox interferes with ImportTiddlers if its "Show XMLHttpRequest" option is switched on//
<<importTiddlers>>
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Here is a [[link|http://www.iit.demokritos.gr/~ipratika]] to his homepage
I have recently reviewed articles for:
* [[IEEE Computer Magazine|http://www.computer.org/portal/site/computer/index.jsp]]
* [[IEEE Transactions on Neural Networks|http://ieee-cis.org/pubs/tnn/]]
* [[IEEE Transactions on Pattern Analysis and Machine Intelligence|http://www.computer.org/portal/site/transactions/menuitem.802944db300bb678c4f34b978bcd45f3/index.jsp?&pName=tpami_home]]
* [[IEEE Intelligent Systems|http://www.computer.org/portal/site/intelligent/]]
* [[IEEE Transactions on Knowledge and Data Engineering|http://www.computer.org/portal/site/transactions/menuitem.a66ec5ba52117764cfe79d108bcd45f3/index.jsp?&pName=tkde_home&]]
* [[Signal Processing|http://www.elsevier.com/wps/find/journaldescription.cws_home/505662/description?navopenmenu=-2]]
* [[International Journal of Artificial Intelligence Tools|http://www.journals.wspc.com.sg/ijait/ijait.shtml]]
* [[Information Sciences|http://www.elsevier.com/wps/find/journaldescription.cws_home/505730/description#description]]
* [[Pattern Recognition Letters|http://ees.elsevier.com/patrec/default.asp]]
2004 - 2005
''Human Network in Knowledge Management and Discovery Technologies from Multimedia Content''
[img[Photo|photo.jpg]]
[[Contacts]]
[[Research Interests]]
[[Current and Recent Activities]]
[[Publications]]
[[Research Projects]]
[[Studies]]
[[Research Associates]]
[[Community Activities]]
Here is a [[link|http://www.iit.demokritos.gr/~mkoutsok]] to his homepage
<<closeAll>><<permaview>><<newTiddler>><<newJournal 'DD MMM YYYY'>><<saveChanges>><<slider chkSliderOptionsPanel OptionsPanel 'options »' 'Change TiddlyWiki advanced options'>>
Here is a [[link|http://www.cs.ucy.ac.cy/~nicolast/]] to his homepage
Last Updated: 2008-06-12 /%<<today YYYY-0MM-DD>>%/
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|Standard Periodic Table (ref. Wikipedia)|c
|| !1 | !2 |!| !3 | !4 | !5 | !6 | !7 | !8 | !9 | !10 | !11 | !12 | !13 | !14 | !15 | !16 | !17 | !18 |
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|!2|bgcolor(#ff6666): Li |bgcolor(#ffdead): Be |>|>|>|>|>|>|>|>|>|>||bgcolor(#cccc99): B |bgcolor(#a0ffa0): C |bgcolor(#a0ffa0): @@color(red):N@@ |bgcolor(#a0ffa0): @@color(red):O@@ |bgcolor(#ffff99): @@color(red):F@@ |bgcolor(#c0ffff): @@color(red):Ne@@ |
|!3|bgcolor(#ff6666): Na |bgcolor(#ffdead): Mg |>|>|>|>|>|>|>|>|>|>||bgcolor(#cccccc): Al |bgcolor(#cccc99): Si |bgcolor(#a0ffa0): P |bgcolor(#a0ffa0): S |bgcolor(#ffff99): @@color(red):Cl@@ |bgcolor(#c0ffff): @@color(red):Ar@@ |
|!4|bgcolor(#ff6666): K |bgcolor(#ffdead): Ca ||bgcolor(#ffc0c0): Sc |bgcolor(#ffc0c0): Ti |bgcolor(#ffc0c0): V |bgcolor(#ffc0c0): Cr |bgcolor(#ffc0c0): Mn |bgcolor(#ffc0c0): Fe |bgcolor(#ffc0c0): Co |bgcolor(#ffc0c0): Ni |bgcolor(#ffc0c0): Cu |bgcolor(#ffc0c0): Zn |bgcolor(#cccccc): Ga |bgcolor(#cccc99): Ge |bgcolor(#cccc99): As |bgcolor(#a0ffa0): Se |bgcolor(#ffff99): @@color(green):Br@@ |bgcolor(#c0ffff): @@color(red):Kr@@ |
|!5|bgcolor(#ff6666): Rb |bgcolor(#ffdead): Sr ||bgcolor(#ffc0c0): Y |bgcolor(#ffc0c0): Zr |bgcolor(#ffc0c0): Nb |bgcolor(#ffc0c0): Mo |bgcolor(#ffc0c0): Tc |bgcolor(#ffc0c0): Ru |bgcolor(#ffc0c0): Rh |bgcolor(#ffc0c0): Pd |bgcolor(#ffc0c0): Ag |bgcolor(#ffc0c0): Cd |bgcolor(#cccccc): In |bgcolor(#cccccc): Sn |bgcolor(#cccc99): Sb |bgcolor(#cccc99): Te |bgcolor(#ffff99): I |bgcolor(#c0ffff): @@color(red):Xe@@ |
|!6|bgcolor(#ff6666): Cs |bgcolor(#ffdead): Ba |bgcolor(#ffbfff):^^*1^^|bgcolor(#ffc0c0): Lu |bgcolor(#ffc0c0): Hf |bgcolor(#ffc0c0): Ta |bgcolor(#ffc0c0): W |bgcolor(#ffc0c0): Re |bgcolor(#ffc0c0): Os |bgcolor(#ffc0c0): Ir |bgcolor(#ffc0c0): Pt |bgcolor(#ffc0c0): Au |bgcolor(#ffc0c0): @@color(green):Hg@@ |bgcolor(#cccccc): Tl |bgcolor(#cccccc): Pb |bgcolor(#cccccc): Bi |bgcolor(#cccc99): Po |bgcolor(#ffff99): At |bgcolor(#c0ffff): @@color(red):Rn@@ |
|!7|bgcolor(#ff6666): Fr |bgcolor(#ffdead): Ra |bgcolor(#ff99cc):^^*2^^|bgcolor(#ffc0c0): Lr |bgcolor(#ffc0c0): Rf |bgcolor(#ffc0c0): Db |bgcolor(#ffc0c0): Sq |bgcolor(#ffc0c0): Bh |bgcolor(#ffc0c0): Hs |bgcolor(#ffc0c0): Mt |bgcolor(#ffc0c0): Ds |bgcolor(#ffc0c0): Rg |bgcolor(#ffc0c0): @@color(green):Uub@@ |bgcolor(#cccccc): Uut |bgcolor(#cccccc): Uuq |bgcolor(#cccccc): Uup |bgcolor(#cccccc): Uuh |bgcolor(#fcfecc): @@color(#cccccc):Uus@@ |bgcolor(#ecfefc): @@color(#cccccc):Uuo@@ |
| !Lanthanides^^*1^^|bgcolor(#ffbfff): La |bgcolor(#ffbfff): Ce |bgcolor(#ffbfff): Pr |bgcolor(#ffbfff): Nd |bgcolor(#ffbfff): Pm |bgcolor(#ffbfff): Sm |bgcolor(#ffbfff): Eu |bgcolor(#ffbfff): Gd |bgcolor(#ffbfff): Tb |bgcolor(#ffbfff): Dy |bgcolor(#ffbfff): Ho |bgcolor(#ffbfff): Er |bgcolor(#ffbfff): Tm |bgcolor(#ffbfff): Yb |
| !Actinides^^*2^^|bgcolor(#ff99cc): Ac |bgcolor(#ff99cc): Th |bgcolor(#ff99cc): Pa |bgcolor(#ff99cc): U |bgcolor(#ff99cc): Np |bgcolor(#ff99cc): Pu |bgcolor(#ff99cc): Am |bgcolor(#ff99cc): Cm |bgcolor(#ff99cc): Bk |bgcolor(#ff99cc): Cf |bgcolor(#ff99cc): Es |bgcolor(#ff99cc): Fm |bgcolor(#ff99cc): Md |bgcolor(#ff99cc): No |
*Chemical Series of the Periodic Table
**@@bgcolor(#ff6666): Alkali metals@@
**@@bgcolor(#ffdead): Alkaline earth metals@@
**@@bgcolor(#ffbfff): Lanthanides@@
**@@bgcolor(#ff99cc): Actinides@@
**@@bgcolor(#ffc0c0): Transition metals@@
**@@bgcolor(#cccccc): Poor metals@@
**@@bgcolor(#cccc99): Metalloids@@
**@@bgcolor(#a0ffa0): Nonmetals@@
**@@bgcolor(#ffff99): Halogens@@
**@@bgcolor(#c0ffff): Noble gases@@
*State at standard temperature and pressure
**those in @@color(red):red@@ are gases
**those in @@color(green):green@@ are liquids
**those in black are solids
I live in [[Pefki|http://en.wikipedia.org/wiki/Pefki]], a northern suburb of [[Athens|http://en.wikipedia.org/wiki/Athens]] in [[Greece|http://en.wikipedia.org/wiki/Greece]].
Here is my address
Kanari 22
Pefki 15121
Greece
and here is my personal e-mail
eserxio [at] gmail.com
*''S. Petridis'', [[G. Paliouras|George Paliouras]] and [[S. J. Perantonis|Stavros Perantonis]]: Allen's hourglass: probabilistic treatment of interval relations, 17th International Symposium on Temporal Representation and Reasoning (TIME'10), //accepted//
* ''S.Petridis'' and [[S. J. Perantonis|Stavros Perantonis]], Semantics extraction from multimedia data: an ontology-based machine learning approach, in "Perception-action cycle: Models, architectures and hardware", Eds. Vassilis Cutsuridis, Amir Hussain and John G. Taylor, //accepted for publication//
*[[E. Zavitsanos|Elias Zavitsanos]], [[G. Paliouras|George Paliouras]], G. Vouros, ''S. Petridis''. Learning Subsumption Hierarchies of Ontology Concepts from Texts. Web Intelligence and Agent Systems: An International Journal, (8):1, pp. 37-51, IOS Press, 2010.
* [[E. Zavitsanos|Elias Zavitsanos]], ''S. Petridis'', [[G. Paliouras|George Paliouras]], G. Vouros. Learning Ontologies of Appropriate Size. In Proceedings of Panhellenic Conference on Artificial Intelligence, LNAI: Theories, Models and Applications. pp. 327-338, 2008.
* [[E. Zavitsanos|Elias Zavitsanos]], ''S. Petridis'', [[G. Paliouras|George Paliouras]], G. Vouros. Determining Automatically the Size of Learned Ontologies. European Conference on Artificial Intelligence (ECAI) 2008.
* [[N. Tsapatsoulis|Nicolas Tsapatsoulis]], and ''S. Petridis'', Classifying Images from Athletics Based on Spatial Relations. In Proceedings of the Second international Workshop on Semantic Media Adaptation and Personalization (December 17 - 18, 2007). SMAP. IEEE Computer Society, Washington, DC, pages 92-97., 2007
* [[G. Vamvakas|George Vamvakas]], [[B. Gatos|Basilis Gatos]], ''S. Petridis'', and N. Stamatopoulos: An efficient feature extraction and dimensionality reduction scheme for isolated greek handwritten character recognition. In 9th International Conference on Document Analysis and Recognition (~ICDAR2007), 2007
* [[N. Tsapatsoulis|Nicolas Tsapatsoulis]], ''S. Petridis'' and [[S. J. Perantonis|Stavros Perantonis]]: On the use of spatial relations between objects for image classification. In Artificial Intelligence and Innovations: from Theory to Applications, 2007, pages 347 - 356, Springer Boston
* [[E. Zavitsanos|Elias Zavitsanos]], [[G. Paliouras|George Paliouras]], G. Vouros, and ''S. Petridis'', "Discovering Subsumption Hierarchies of Ontology Concepts from Text Corpora", IEEE/WIC/ACM International Joint Conference on Web Intelligence and Intelligent Agent Technology, Nov 2-5, 2007
* [[D. Kosmopoulos|Dimitrios Kosmopoulos]], ''S. Petridis'', [[I. Pratikakis|Ioannis Pratikakis]], [[B. Gatos|Basilis Gatos]], [[S. J. Perantonis|Stavros Perantonis]], [[V. Karkaletsis|Vangelis Karkaletsis]] and [[G. Paliouras|George Paliouras]], "Knowledge Acquisition from Multimedia Content using an Evolution Framework," In Proceedings of the IFIP Conference on Artificial Intelligence Applications and Innovations (AIAI), IFIP International Federation for Information Processing Series, n. 204, pp. 557-565, Springer Boston, 2006.
* [[B. Gatos|Basilis Gatos]], K. Ntzios, [[I. Pratikakis|Ioannis Pratikakis]], ''S. Petridis'', T. Konidaris and [[S. J. Perantonis|Stavros Perantonis]], "An Efficient Segmentation-free Approach to Assist Old Greek Handwritten Manuscript OCR ", Pattern Analysis and Applications (PAA), Vol. 8, Num. 4, pp. 305-320, 2006
* ''S. Petridis'' and [[S. J. Perantonis|Stavros Perantonis]]: On the relation between discriminant analysis and mutual information for supervised linear feature extraction. Pattern Recognition, 37:857–874, 2004.
* [[E. Charou|Eleni Charou]], ''S. Petridis'', M. Stefouli, O. D. Mavrantza, and [[S. J. Perantonis|Stavros Perantonis]]: Innovative feature selection used in multispectral imagery, classification for water quality monitoring. In Proceedings of the 2004 ISPRS Congress, Istanbul, 2004. ([[pdf|publications/charou04a.pdf]])
* [[B. Gatos|Basilis Gatos]], K. Ntzios, [[I. Pratikakis|Ioannis Pratikakis]], ''S. Petridis'', T. Konidaris, and [[S. J. Perantonis|Stavros Perantonis]]: A segmentation-free recognition technique to assist old greek handwritten manuscript ocr. In Proceedings of Document Analysis Systems, volume 3163 of Lectures Notes in Computer Science, pages 63–74, 2004. ([[pdf|publications/gatos04a.pdf]])
* ''S. Petridis'' and [[S. J. Perantonis|Stavros Perantonis]]: Feature deforming for improved similarity based learning. In Proceedings of the 3rd Hellenic Conference on Artificial Intelligence, volume 3025 of Lecture Notes in Artificial Intelligence, pages 201–209, 2004. ([[pdf|publications/petridis04b.pdf]])
* ''S. Petridis'', [[E. Charou|Eleni Charou]] and [[S. J. Perantonis|Stavros Perantonis]]: Non-redundant feature selection of multi-band remotely sensed images for land cover classification. In Proceedings of the 2003 Tyrrhenian International Workshop on Remote Sensing, 2003. ([[pdf|publications/petridis03a.pdf]])
* [[G. Petasis|George Petasis]], ''S. Petridis'', [[G. Paliouras|George Paliouras]], [[V. Karkaletsis|Vangelis Karkaletsis]], [[S.J. Perantonis|Stavros Perantonis]], and C.D. Spyropoulos, Symbolic and Neural Learning of Named-Entity Recognition and Classification Systems in Two Languages. In Advances in Computational intelligence and Learning: Methods and Applications H. Zimmermann, G. Tselentis, M. v. Someren, and G. Dounias, Eds. Intelligent Technologies Series. Kluwer B.V., Deventer, The Netherlands, 193-210, 2002
* [[S. J. Perantonis|Stavros Perantonis]], N. Ampazis, [[V. Virvilis|Vasilis Virvilis]], and ''S. Petridis'': Open issues in feedforward neural network training. In LFTNC (Siena, Italy), 2001. ([[pdf|publications/perantonis01a.pdf]])
* [[S. J. Perantonis|Stavros Perantonis]], ''S. Petridis'', and [[V. Virvilis|Vasilis Virvilis]]. Supervised principal component analysis using a smooth classifier paradigm. In Proceedings of the 15th International Conference on Pattern Recognition, volume 2, pages 109–112, 2000. ([[pdf|publications/perantonis00a.pdf]])
* [[G. Petasis|George Petasis]], ''S. Petridis'', [[G. Paliouras|George Paliouras]], and [[V. Karkaletsis|Vangelis Karkaletsis]]: Symbolic and neural learning for named-entity recognition. In Proceedings of European Best Practice Workshops and Symposium on Computational Intelligence and Learning, 2000. ([[pdf|publications/petasis00a.pdf]])
* A. Agogino, J. Gosh, [[S. J. Perantonis|Stavros Perantonis]], [[V. Virvilis|Vasilis Virvilis]], ''S. Petridis'', and P.J.G. Lisboa: The role of multiple, linear-projection based visualization techniques in rbf-based classification of high dimensional data. In Proceedings of the International Joint Conference on Neural Networks, volume 3, 2000. ([[pdf|publications/agogino00a.pdf]])
I' m a collaborating researcher at NCSR "Demokrios" ([[Contacts|Contacts at NCSR "Demokritos"]]).
* [[Research Interests]]
* List of [[Publications]].
* [[Research Associates]]
*[[Stavros Perantonis]]
*[[Eleni Charou]]
*[[Basilis Gatos]]
*[[Dimitrios Kosmopoulos]]
*[[Ioannis Pratikakis]]
*[[George Paliouras]]
*[[Vangelis Karkaletsis]]
*[[Miltos Koutsokeras]]
*[[Elias Zavitsanos]]
*[[George Petasis]]
and, of course,
* the [[UberAdmin|Vasilis Vatikiotis]]
* Semantic Analysis of Multimedia
* Ontology learning
* Feature transforms learning
* Natural Language Processing
* Optical Character Recognition
* Geographical Information Systems
* Image Processing
I' m actively involved in the following research projects
*[[BOEMIE]]
*[[CASAM]]
Here is a list of past projects I have participated in:
*[[TECHNOLANGUE]]
*[[MULTIMINE]]
*[[INTERWATPOL]]
*[[AUTONOMA]]
http://www.iit.demokritos.gr/~petridis
* Member of the Hellenic Association of Artificial Intelligence ([[EETN|http://www.eetn.gr/english/main_frame_page_en.htm]])
Here is a [[link|http://www.iit.demokritos.gr/cil/members/homepage/homepage_sper.htm]] to his homepage
!!!1999 – 2006
''~PhD'' in Artificial intelligence and Pattern recogintion.
National and Kapodistrian University of Athens ([[UOA|http://www.di.uoa.gr/en/]]) - National Center for Scientific Research ([[“Demokritos''|http://www.iit.demokritos.gr]])
Thesis: Transform Learning in Classification Problems
!!!1996 – 1997
''Master'' Degree in Artificial intelligence and Pattern Recognition (DEA IARFA).
University Pierre et Marrie Curie ([[Paris 6|http://www.lip6.fr]]),
Thesis: Language Identification using Hidden Markov Models
!!!''1991 – 1996''
''Degree'' in Electrical and Computer Engineering
National Technical University of Athens ([[NTUA|http://www.ece.ntua.gr/index.php?lang=en]])
Thesis : Finding key in music using fuzzy neural networks.
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#sidebarTabs .tabContents .tiddlyLink:hover,#sidebarTabs .tabContents .button:hover{color:#4F4B45;background:#fff}
#sidebarTabs .tabContents .button:hover, #sidebarTabs .tabContents .highlight, #sidebarTabs .tabContents .marked, #sidebarTabs .tabContents a.button:active{color:#4F4B45;background:#fff}
.tabSelected{color:#fff; background:#948979;}
.tabUnselected {
background: #ccc;
}
.tabSelected, .tabSelected:hover {
color: #fff;
background: #948979;
border: solid 1px #948979;
padding-bottom:1px;
}
.tabUnselected {
color: #999;
background: #eee;
border: solid 1px #ccc;
padding-bottom:1px;
}
#sidebarTabs .tabUnselected { border-bottom: none;padding-bottom:3px;}
#sidebarTabs .tabSelected{padding-bottom:3px;}
#sidebarTabs .tabUnselected:hover { border-bottom: none;padding-bottom:3px;color:#4F4B45}
#sidebarOptions .sliderPanel {
background: #fff; border:none;
font-size: .9em;
}
#sidebarOptions .sliderPanel a {font-weight:normal;}
#sidebarOptions .sliderPanel input {border:1px solid #999;}
.viewer blockquote {
border-left: 3px solid #948979;
}
.viewer table {
border: 2px solid [[ColorPalette::TertiaryDark]];
}
.viewer th, thead td {
background: #948979;
border: 1px solid #948979;
color: #fff;
}
.viewer pre {
border: 1px solid #948979;
background: #f5f5f5;
}
.viewer code {
color: #2F2A29;
}
.viewer hr {
border-top: dashed 1px #948979;
}
.editor input {
border: 1px solid #948979;
}
.editor textarea {
border: 1px solid #948979;
}
.popup {
background: #948979;
border: 1px solid #948979;
}
.popup li.disabled {
color: #000;
}
.popup li a, .popup li a:visited {
color: #eee;
border: none;
}
.popup li a:hover {
background: #575352;
color: #fff;
border: none;
}
.tagging, .tagged {
border: 1px solid #eee;
background-color: #F7F7F7;
}
.selected .tagging, .selected .tagged {
background-color: #eee;
border: 1px solid #BFBAB3;
}
.tagging .listTitle, .tagged .listTitle {
color: #bbb;
}
.selected .tagging .listTitle, .selected .tagged .listTitle {
color: #666;
}
.tagging .button, .tagged .button {
color:#aaa;
}
.selected .tagging .button, .selected .tagged .button {
color:#4F4B45;
}
.highlight, .marked {background:transparent; color:#111; border:none; text-decoration:underline;}
.tagging .button:hover, .tagged .button:hover, .tagging .button:active, .tagged .button:active {
border: none; background:transparent; text-decoration:underline; color:#000;
}
h1,h2,h3,h4,h5 { color: #666; background: transparent; padding-bottom:2px; font-family: Arial, Helvetica, sans-serif; }
h1 {font-size:18px;}
h2 {font-size:16px;}
h3 {font-size: 14px;}
#messageArea {
border: 4px solid #948979;
background: #f5f5f5;
color: #999;
font-size:90%;
}
#messageArea a:hover { background:#f5f5f5;}
#messageArea .button{
color: #666;
border: 1px solid #CC6714;
}
#messageArea .button:hover {
color: #fff;
background: #948979;
border-color: #948979;
}
* html .viewer pre {
margin-left: 0em;
}
* html .editor textarea, * html .editor input {
width: 98%;
}
.searchBar {float:right;font-size: 1.0em;}
.searchBar .button {color:#999;display:block;}
.searchBar .button:hover {border:1px solid #fff;color:#4F4B45;}
.searchBar input {
background-color: #FFF;
color: #999999;
border: 1px solid #CCC; margin-right:3px;
}
#sidebarOptions .button:active, #sidebarOptions .highlight {background:#F5F5F5;}
*html #contentFooter { padding:0.25em 1em 0.5em 1em;}
#noticeBoard {font-size: 0.9em; color:#999; position:relative;display:block;background:#fff; clear: both; margin-right:0.5em; margin-top:60px; padding:5px; border-bottom: 1px dotted #CCC; border-top: 1px dotted #CCC;}
#mainMenu #noticeBoard a,#mainMenu #noticeBoard .tiddlyLink {display:inline;border:none;padding:5px 2px;color:#DF9153 }
#noticeBoard a:hover {border:none;}
#noticeBoard br {display:inline;}
#mainMenu #noticeBoard .button{
color: #666;
border: 1px solid #DF9153;padding:2px;
}
#mainMenu #noticeBoard .button:hover{
color: #fff;
background: #DF9153;
border-color: #DF9153;
}
.searchbar {position:relative; width:11em;}
.searchbar .button{margin:0; width:11em;}
#header {display:inline-block;}
/*}}}*/
2005 - 2006
Integration entre les langages de la planification et de l'information en vue de l'`elaboration de cartes interactives d' espace ~Medocc-Meda et des systemes de transport correspondants (~Interreg-III-B)
Here is a [[link|http://www.iit.demokritos.gr/~vangelis]] to his homepage
Here is a [[link|http://www.iit.demokritos.gr/~vatikiot]] to his homepage
Here is a [[link|http://www.iit.demokritos.gr/~vasvir]] to his homepage
The functionality and design and of this page is based on [[TiddlyWiki|http://www.tiddlywiki.com]].
//{{{
//This ensures that the footer sticks to the bottom of the screen when there are no tiddlers open. If that is not desirable, it can be deleted.
function setFooter() {
if (document.getElementById && document.getElementById("contentFooter") ) {
var windowHeight=findWindowHeight();
if (windowHeight>0) {
var contentHeight= document.getElementById('mainMenu').offsetHeight + document.getElementById("header").offsetHeight + document.getElementById("contentFooter").offsetHeight;
var menu= document.getElementById('mainMenu');
if (windowHeight-(contentHeight)>=0) {
menu.style.position='relative';
menu.style.marginBottom=(windowHeight-(contentHeight))+'px';
}
else {
menu.style.position='';
menu.style.marginBottom='';
}
}
}
}
window.onresize = function() {
setFooter();
}
Story.prototype.refreshTiddler_footerhack=Story.prototype.refreshTiddler;
Story.prototype.refreshTiddler = function (title,template,force)
{
var theTiddler = Story.prototype.refreshTiddler_footerhack.apply(this,arguments);
setFooter();
return theTiddler;}
//}}}