Georgios Kouroupetroglou
Research interests
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InterestsHuman Computer Interaction, Assistive Technologies, acceessibilty, Speech
Publications
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Acoustic Modeling of Dialogue Elements for Document Accessibility.
Universal Access in Human-Computer Interaction. Applications and Services - 6th International Conference, UAHCI 2011, Held as Part of HCI International 2011, Orlando, FL, USA, July 9-14, 2011, Proceedings, Part IV; 01/2011
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Modeling reader’s emotional state response on document’s typographic elements
Advances in Human-Computer Interaction. 01/2011; Volume 2011:pages 1-18.
We present the results of an experimental study towards modeling the reader’s emotional state variations induced by the typographic elements in electronic documents. Based on the dimensional theory of emotions we investigate how typographic elements, like font style (bold, italics, bold-italics) and... [more] We present the results of an experimental study towards modeling the reader’s emotional state variations induced by the typographic elements in electronic documents. Based on the dimensional theory of emotions we investigate how typographic elements, like font style (bold, italics, bold-italics) and font (type, size, color and background color), affect the reader’s emotional states, namely, Pleasure, Arousal, and Dominance (PAD). An experimental procedure was implemented conforming to International Affective Picture Systemguidelines and incorporating the Self-AssessmentManikin test. Thirty students participated in the experiment. The stimulus was a short paragraph of text for which any content, emotion, and/or domain dependent information was excluded. The Analysis of Variance revealed the dependency of (a) all the three emotional dimensions on font size and font/background color combinations and (b) the Pleasure dimension on font type and font style. We introduce a set of mapping rules showing how PAD vary on the discrete values of font style and font type elements. Moreover, we introduce a set of equations describing the PAD dimensions’ dependency on font size. This novel model can contribute to the automated reader’s emotional state extraction in order, for example, to enhance the acoustic rendition of the documents, utilizing text-to-speech synthesis.
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Modeling Reader's Emotional State Response on Document's Typographic Elements.
Adv. Human-Computer Interaction. 01/2011; 2011.
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Auditory universal accessibility of data tables using naturally derived prosody specification.
Universal Access in the Information Society. 01/2010; 9:169-183.
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An Open Source / Freeware Assistive Technology Software Inventory.
Computers Helping People with Special Needs, 12th International Conference, ICCHP 2010, Vienna, Austria, July 14-16, 2010. Proceedings, Part I; 01/2010
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Integrating Contrast in a Framework for Predicting Prosody.
Computational Linguistics and Intelligent Text Processing, 11th International Conference, CICLing 2010, Iasi, Romania, March 21-27, 2010. Proceedings; 01/2010
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ITHACA: An Open Source Framework for Building Component-Based Augmentative and Alternative Communication Applications
ACM Transactions on Accessible Computing (TACCESS). 01/2010; 2.
As an answer to the disabled community’s odyssey to gain access to adaptable, modular, multilingual, cheap and sustainable Augmentative and Alternative Communication (AAC) products, we propose the use of the ITHACA framework. It is a software environment for building component-based AAC applications... [more] As an answer to the disabled community’s odyssey to gain access to adaptable, modular, multilingual, cheap and sustainable Augmentative and Alternative Communication (AAC) products, we propose the use of the ITHACA framework. It is a software environment for building component-based AAC applications, grounded on the Design for All principles and a hybrid---community and commercial---Open Source development model. ITHACA addresses the developers, the vendors, as well as the people who use AAC. We introduce a new viewpoint on the AAC product design-develop-distribute lifecycle, and a novel way to search-select-modify-maintain the AAC aid. ITHACA provides programmers with a set of tools and reusable Open Source code for building AAC software components. It also facilitates AAC product vendors to put together sophisticated applications using the available on the Web, independently premanufactured, free or commercial software parts. Furthermore, it provides people who use AAC with a variety of compatible AAC software products which incorporate multimodal, user-tailored interfaces that can fulfill their changing needs. The ITHACA architecture and the proposed fusion of past and current approaches, trends and technologies are explained. ITHACA has been successfully applied by implementing a family of AAC products, based on interchangeable components. Several ready to use ITHACA-based components, including on-screen keyboards, Text-to-Speech, symbol selection sets, e-chatting, emailing, and scanning-based input, as well as four complete communication aids addressing different user cases have been developed. This demonstration showed good acceptance of the ITHACA applications and substantial improvement of the end users’ communication skills. Developers’ experience on working in ITHACA’s Open Source projects was also positively evaluated. More importantly, the potential contribution of the component-based framework and Open Source development model combination to the AAC community emerged.
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Acoustic Rendering of Data Tables Using Earcons and Prosody for Document Accessibility.
Universal Access in Human-Computer Interaction. Applications and Services, 5th International Conference, UAHCI 2009, Held as Part of HCI International 2009, San Diego, CA, USA, July 19-24, 2009. Proceedings, Part III; 01/2009
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Spoken Dialogue Interfaces: Integrating Usability.
HCI and Usability for e-Inclusion, 5th Symposium of the Workgroup Human-Computer Interaction and Usability Engineering of the Austrian Computer Society, USAB 2009, Linz, Austria, November 9-10, 2009 Proceedings; 01/2009
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DocEmoX: A System for the Typography-Derived Emotional Annotation of Documents.
Universal Access in Human-Computer Interaction. Applications and Services, 5th International Conference, UAHCI 2009, Held as Part of HCI International 2009, San Diego, CA, USA, July 19-24, 2009. Proceedings, Part III; 01/2009
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1.52Impact points
Acoustic analysis of musical intervals in modern Byzantine Chant scales.
The Journal of the Acoustical Society of America. 11/2008; 124(4):EL262.
The goal of this work is to investigate experimentally the music intervals in modern Byzantine Chant performance and to compare the obtained results with the equal temperament scales introduced by the Patriarchal Music Committee (PMC). Current measurements resulted from pressure and electroglottogra... [more] The goal of this work is to investigate experimentally the music intervals in modern Byzantine Chant performance and to compare the obtained results with the equal temperament scales introduced by the Patriarchal Music Committee (PMC). Current measurements resulted from pressure and electroglottographic recordings of 13 famous chanters singing scales of all the music genera. The scales' microintervals were derived after pitch detection based on autocorrelation, cepstrum, and harmonic product spectrum analysis. The microintervallic differences between the experimental values and the PMC's ones were statistically analyzed indicating large deviation of the mean values and the standard deviations. Significant interaction effects were identified among some genera and between ascending and descending scale directions.
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Multimodal Accessibility of Documents
10/2008;
ISBN: 978-953-7619-15-2
To ensure that people with print disability are able equally to participate in society, it is crucial to develop more effective ways for the accessibility of both printed and electronic documents. In this chapter we have first presented an integrated architecture on how a document is structured. The... [more] To ensure that people with print disability are able equally to participate in society, it is crucial to develop more effective ways for the accessibility of both printed and electronic documents. In this chapter we have first presented an integrated architecture on how a document is structured. Then, the existing international standards and guidelines for creating accessible documents were briefly analyzed. Based on these, we have proposed a novel holistic XMLbased system for the real time production, presentation and navigation of multimodal accessible documents.
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A Methodology for the Extraction of Reader's Emotional State Triggered from Text Typography
08/2008;
ISBN: 978-953-7619-03-9
In this chapter we presented a theoretical survey on emotions and a methodology on how reader's emotional state can be modelled. The selection of the Self Assessment Manikin Test and the dimensional approach for emotions led to a procedure for modelling the reader's emotional states on types... [more] In this chapter we presented a theoretical survey on emotions and a methodology on how reader's emotional state can be modelled. The selection of the Self Assessment Manikin Test and the dimensional approach for emotions led to a procedure for modelling the reader's emotional states on typesetting and font elements of e-documents. Documents contain many more elements and their combinations as presented in 4.1 prior to the elements in our experiment, for further experimentation. The proposed modelling can be used in Artificial Intelligence for a number of applications. For example, as proposed in (Tsonos et al., 2007b), we can use the emotionally annotated documents for the multimodal accessibility of documents, focusing on the acoustic modality. Expressive Speech Synthesis (IEEE, 2006) creates more physical results. The dimensional approach of the emotions is also used in speech synthesis (Tsonos et al., 2007b) (Schr?der, 2006). In Figure 8 a proposed real-time system that automatically produces emotional annotation to documents and conveys the visual elements into acoustic modality using expressive speech synthesis is presented. Future work includes the use of an e-TSA composer (Xydas & Kouroupetroglou, 2001a, 2001b) (Xydas et al., 2005) on the DEMOSTHeNES Text-to-Speech platform (Xydas & Kouroupetroglou, 2001c) and models for expressive speech synthesis as proposed by Schr?der (Schr?der, 2006), for acoustic rendition of emotionally annotated documents.
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Towards modeling of Readers' Emotional State response for the automated annotation of documents.
Proceedings of the International Joint Conference on Neural Networks, IJCNN 2008, part of the IEEE World Congress on Computational Intelligence, WCCI 2008, Hong Kong, China, June 1-6, 2008; 01/2008
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A Framework for Language-Independent Analysis and Prosodic Feature Annotation of Text Corpora.
Text, Speech and Dialogue, 11th International Conference, TSD 2008, Brno, Czech Republic, September 8-12, 2008. Proceedings; 01/2008
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HERON: a zournas digital virtual musical instrument
Proceedings of the 3rd international conference on Digital Interactive Media in Entertainment and Arts, New York, NY, USA; 01/2008
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A Methodology for Reader's Emotional State Extraction to Augment Expressions in Speech Synthesis
Tools with Artificial Intelligence, 2007. ICTAI 2007. 19th IEEE International Conference on; 11/2007
This paper presents a methodology for the real-time extraction of readers' emotional state from documents as well as the representation of emotionally annotated documents into acoustic modality. Using the Self Assessment Manikin Test we performed preliminary experiments on the extraction of Plea... [more] This paper presents a methodology for the real-time extraction of readers' emotional state from documents as well as the representation of emotionally annotated documents into acoustic modality. Using the Self Assessment Manikin Test we performed preliminary experiments on the extraction of Pleasure - Arousal - Dominance (P.A.D.) annotation rules that the documents evoke to the readers. The rules are used in an automated procedure that assigns text's formatting and structure of documents (meta-data) to emotional state values. During the vocalization of documents, these values, and consequently the documents' meta-data, are carried by different expressions of speech using text-to-speech synthesis. The proposed system architecture is language independent and content-free.
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A Methodology for Reader's Emotional State Extraction to Augment Expressions in Speech Synthesis.
19th IEEE International Conference on Tools with Artificial Intelligence (ICTAI 2007), October 29-31, 2007, Patras, Greece, Volume 2; 01/2007
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Discrimination and Perception of the Acoustic Rendition of Texts by Blind People.
Universal Access in Human-Computer Interaction. Applications and Services, 4th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2007 Held as Part of HCI International 2007 Beijing, China, July 22-27, 2007 Proceedings, Part III; 01/2007
Following (1)
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Diamantis Koreas
National and Kapodistrian University of Athens
