Pub Date : 2013-10-01DOI: 10.1109/ICTA.2013.6815314
David Thaller, G. Nussbaum
Nowadays there hardly exist accessible off the shelf toys for children and adults with disabilities. One group of non-trivial toys that are very interesting for people with physical disabilities are remote controlled (RC) models because the remotes can be easily exchanged by custom ones. If the controller is once adapted to the individual needs of a user, he can buy models in RC hobby shops without the need to adapt or modify it. This paper describes and discusses alternative control interfaces accessible for people with physical disabilities to accurately control model helicopters, airplanes boats or cars.
{"title":"Accessibility of non-trivial remote controlled models and toys","authors":"David Thaller, G. Nussbaum","doi":"10.1109/ICTA.2013.6815314","DOIUrl":"https://doi.org/10.1109/ICTA.2013.6815314","url":null,"abstract":"Nowadays there hardly exist accessible off the shelf toys for children and adults with disabilities. One group of non-trivial toys that are very interesting for people with physical disabilities are remote controlled (RC) models because the remotes can be easily exchanged by custom ones. If the controller is once adapted to the individual needs of a user, he can buy models in RC hobby shops without the need to adapt or modify it. This paper describes and discusses alternative control interfaces accessible for people with physical disabilities to accurately control model helicopters, airplanes boats or cars.","PeriodicalId":188977,"journal":{"name":"Fourth International Conference on Information and Communication Technology and Accessibility (ICTA)","volume":"211 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123275232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-01DOI: 10.1109/ICTA.2013.6815316
Kabil Jaballah
3D sign language is a brand new technology that provides tools to create 3D signed content based on avatars. Pushed by the advances in computer graphics and many other advantages compared with videos of live signers, 3D sign language is getting more interest and lots of 3D signed scenes are being recorded and used for multiple purposes like young deaf teaching. In Tunsia, we created WebSign, a system that translates any textual content into any signed language through an avatar. Many similar systems have been proposed during the past few years. Unfortunately, the created contents are not cataloged efficiently and subsequently could not be retrieved in a relevant way. In this paper, we propose a new approach for automatic 3D signed contents indexing and matching. Our approach is based on classifying automatically sign language parameters (hand shape, location, orientation and movement). We also propose a new model to represent the recognized parameters based on the Mouvement-Hold Model (MHM). We implemented the designed approach and tested it on a repository of more than 2000 3D signed scenes issued from multiple systems. Results are encouraging since they reached up to 90% for the parameters recognition rate.
{"title":"Towards content-based 3D sign language indexing using segmental M-H model","authors":"Kabil Jaballah","doi":"10.1109/ICTA.2013.6815316","DOIUrl":"https://doi.org/10.1109/ICTA.2013.6815316","url":null,"abstract":"3D sign language is a brand new technology that provides tools to create 3D signed content based on avatars. Pushed by the advances in computer graphics and many other advantages compared with videos of live signers, 3D sign language is getting more interest and lots of 3D signed scenes are being recorded and used for multiple purposes like young deaf teaching. In Tunsia, we created WebSign, a system that translates any textual content into any signed language through an avatar. Many similar systems have been proposed during the past few years. Unfortunately, the created contents are not cataloged efficiently and subsequently could not be retrieved in a relevant way. In this paper, we propose a new approach for automatic 3D signed contents indexing and matching. Our approach is based on classifying automatically sign language parameters (hand shape, location, orientation and movement). We also propose a new model to represent the recognized parameters based on the Mouvement-Hold Model (MHM). We implemented the designed approach and tested it on a repository of more than 2000 3D signed scenes issued from multiple systems. Results are encouraging since they reached up to 90% for the parameters recognition rate.","PeriodicalId":188977,"journal":{"name":"Fourth International Conference on Information and Communication Technology and Accessibility (ICTA)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129926381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-01DOI: 10.1109/ICTA.2013.6815313
Sahar Ghrab, Mohamed Turki, F. Gargouri
We propose in this paper a new approach for knowledge cartography which aims to visualize knowledge of the organization among a clear representation. On the one hand, knowledge cartography approach identifies knowledge and evaluates it on the other hand. Moreover, it aims to visualize this knowledge through an understandable graphical representation. This approach has been tested in the organization of protection of motor-disabled of Sfax-Tunisia (ASHMS).
{"title":"Towards a knowledge cartography approach","authors":"Sahar Ghrab, Mohamed Turki, F. Gargouri","doi":"10.1109/ICTA.2013.6815313","DOIUrl":"https://doi.org/10.1109/ICTA.2013.6815313","url":null,"abstract":"We propose in this paper a new approach for knowledge cartography which aims to visualize knowledge of the organization among a clear representation. On the one hand, knowledge cartography approach identifies knowledge and evaluates it on the other hand. Moreover, it aims to visualize this knowledge through an understandable graphical representation. This approach has been tested in the organization of protection of motor-disabled of Sfax-Tunisia (ASHMS).","PeriodicalId":188977,"journal":{"name":"Fourth International Conference on Information and Communication Technology and Accessibility (ICTA)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116334493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-01DOI: 10.1109/ICTA.2013.6815318
Maher Jbali, P. Dalle, M. Jemni
This paper presents a modeling approach for Sign language recognition which is introduced through a dialogue between deaf people and signing avatar. By this modeling approach, the system can be configurable as the scenario and the vocabulary can be modified or changed. Tow important elements are included to these modeling: the context and the prediction. The objective is to improve the reliability of sign language recognition system compared to the classic systems which generally do not use semantic concept.
{"title":"Towards sign language recognition system in Human-Computer interactions","authors":"Maher Jbali, P. Dalle, M. Jemni","doi":"10.1109/ICTA.2013.6815318","DOIUrl":"https://doi.org/10.1109/ICTA.2013.6815318","url":null,"abstract":"This paper presents a modeling approach for Sign language recognition which is introduced through a dialogue between deaf people and signing avatar. By this modeling approach, the system can be configurable as the scenario and the vocabulary can be modified or changed. Tow important elements are included to these modeling: the context and the prediction. The objective is to improve the reliability of sign language recognition system compared to the classic systems which generally do not use semantic concept.","PeriodicalId":188977,"journal":{"name":"Fourth International Conference on Information and Communication Technology and Accessibility (ICTA)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133041220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-01DOI: 10.1109/ICTA.2013.6815309
K. Jayech, Nesrine Trimech, M. Mahjoub, N. Amara
This paper presents a new probabilistic graphical model used to model and recognize words representing the names of Tunisian cities. In fact, this work is based on a dynamic hierarchical Bayesian network. The aim is to find the best model of Arabic handwriting to reduce the complexity of the recognition process by permitting the partial recognition. Actually, we propose a segmentation of the word based on smoothing the vertical histogram projection using different width values to reduce the error of segmentation. Then, we extract the characteristics of each cell using the Zernike and HU moments, which are invariant to rotation, translation and scaling. Our approach is tested using the IFN / ENIT database, and the experiment results are very promising.
{"title":"Dynamic hierarchical Bayesian network for Arabic handwritten word recognition","authors":"K. Jayech, Nesrine Trimech, M. Mahjoub, N. Amara","doi":"10.1109/ICTA.2013.6815309","DOIUrl":"https://doi.org/10.1109/ICTA.2013.6815309","url":null,"abstract":"This paper presents a new probabilistic graphical model used to model and recognize words representing the names of Tunisian cities. In fact, this work is based on a dynamic hierarchical Bayesian network. The aim is to find the best model of Arabic handwriting to reduce the complexity of the recognition process by permitting the partial recognition. Actually, we propose a segmentation of the word based on smoothing the vertical histogram projection using different width values to reduce the error of segmentation. Then, we extract the characteristics of each cell using the Zernike and HU moments, which are invariant to rotation, translation and scaling. Our approach is tested using the IFN / ENIT database, and the experiment results are very promising.","PeriodicalId":188977,"journal":{"name":"Fourth International Conference on Information and Communication Technology and Accessibility (ICTA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125880435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-01DOI: 10.1109/ICTA.2013.6815320
Nadia Aouiti
Communication represents a very important need especially for deaf persons who use sign languages. For this reason, facilitating this communication through Information and Communication Technologies attracted many research. In this context, the Research Lab. LaTICE of the University of Tunis has been devoted during many years to develop the project Websign [1] aiming at using avatars to translate automatically a written text to sign language. The architecture of Websign is based on many modules i.e. linguistic treatment, creation sign dictionaries, animating the avatar, etc.. However, until now, Websign has not yet developed all steps of treatment related to Arabic language and in particular its linguistic step. The aim of this work is to provide an automatic translation system from an Arabic text into an animated sign language with a special focus on syntactic and semantic analysis of the input text in order to extract the maximum of inherent information that can be useful to the translation step.
{"title":"Towards an automatic translation from Arabic text to sign language","authors":"Nadia Aouiti","doi":"10.1109/ICTA.2013.6815320","DOIUrl":"https://doi.org/10.1109/ICTA.2013.6815320","url":null,"abstract":"Communication represents a very important need especially for deaf persons who use sign languages. For this reason, facilitating this communication through Information and Communication Technologies attracted many research. In this context, the Research Lab. LaTICE of the University of Tunis has been devoted during many years to develop the project Websign [1] aiming at using avatars to translate automatically a written text to sign language. The architecture of Websign is based on many modules i.e. linguistic treatment, creation sign dictionaries, animating the avatar, etc.. However, until now, Websign has not yet developed all steps of treatment related to Arabic language and in particular its linguistic step. The aim of this work is to provide an automatic translation system from an Arabic text into an animated sign language with a special focus on syntactic and semantic analysis of the input text in order to extract the maximum of inherent information that can be useful to the translation step.","PeriodicalId":188977,"journal":{"name":"Fourth International Conference on Information and Communication Technology and Accessibility (ICTA)","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126024581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-01DOI: 10.1109/ICTA.2013.6815301
S. Salem, L. Cheniti-Belcadhi, R. Braham
Concept mapping has been applied in several fields, including curriculum development, learning, and assessment. The validity of concept mapping process has been proven by many empirical studies. The present paper describes a concept map based system that has been conceived for learners' knowledge assessment in process-oriented short and open answers questions SOAQs' evaluation. The presentation of the system focuses on its architecture on terms of modules, their interactions and their functions. We have three modules: the learner module, the tutor module and the administrator module.
{"title":"Intelligent system to support SOAQs assessment","authors":"S. Salem, L. Cheniti-Belcadhi, R. Braham","doi":"10.1109/ICTA.2013.6815301","DOIUrl":"https://doi.org/10.1109/ICTA.2013.6815301","url":null,"abstract":"Concept mapping has been applied in several fields, including curriculum development, learning, and assessment. The validity of concept mapping process has been proven by many empirical studies. The present paper describes a concept map based system that has been conceived for learners' knowledge assessment in process-oriented short and open answers questions SOAQs' evaluation. The presentation of the system focuses on its architecture on terms of modules, their interactions and their functions. We have three modules: the learner module, the tutor module and the administrator module.","PeriodicalId":188977,"journal":{"name":"Fourth International Conference on Information and Communication Technology and Accessibility (ICTA)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130159920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-01DOI: 10.1109/ICTA.2013.6815312
L. Lafi, Zaki Brahmi, J. Feki, S. Hammoudi
The Model Driven Engineering (MDE) has been proposed to support the development, maintenance and evolution of software systems. In this context several approaches for transformation models have been proposed in the literature. They suffer from two major limitations: i) they have been tested on homogeneous metamodels (e.g., Ecore, UML, Minjava, Kermeta ...), and ii) they use common notions and concepts, such as modeling, matching and processing models. In some approaches they do not distinguish between matching, mapping and transformation. This leads to confusion between these operations. Indeed, it is well recognized that model transformation is at the heart of approaches MDE and it is derived from the mapping model, itself obtained after performing a matching process. In this paper, we propose, in a first part, an extended architecture to semi-automate the process of transformation models. It is the separation of concerns by distinguishing the operations matching, mapping and transformation taking into account several factors (e.g., semantic resources, pre-matching efforts and post-matching efforts...). In the second part, and to test the heterogeneity of metamodels that will be taken as input by matching techniques, we introduce two new types of metamodels representing respectively the multi-agents system platform JADE, and the BPEL language for the web services orchestration. To validate our proposal, our architecture is implemented on a matching technique which details the various steps leading to a semi-automatic transformation process.
{"title":"Towards Generic Semi-Automatic Transformation Process in MDA","authors":"L. Lafi, Zaki Brahmi, J. Feki, S. Hammoudi","doi":"10.1109/ICTA.2013.6815312","DOIUrl":"https://doi.org/10.1109/ICTA.2013.6815312","url":null,"abstract":"The Model Driven Engineering (MDE) has been proposed to support the development, maintenance and evolution of software systems. In this context several approaches for transformation models have been proposed in the literature. They suffer from two major limitations: i) they have been tested on homogeneous metamodels (e.g., Ecore, UML, Minjava, Kermeta ...), and ii) they use common notions and concepts, such as modeling, matching and processing models. In some approaches they do not distinguish between matching, mapping and transformation. This leads to confusion between these operations. Indeed, it is well recognized that model transformation is at the heart of approaches MDE and it is derived from the mapping model, itself obtained after performing a matching process. In this paper, we propose, in a first part, an extended architecture to semi-automate the process of transformation models. It is the separation of concerns by distinguishing the operations matching, mapping and transformation taking into account several factors (e.g., semantic resources, pre-matching efforts and post-matching efforts...). In the second part, and to test the heterogeneity of metamodels that will be taken as input by matching techniques, we introduce two new types of metamodels representing respectively the multi-agents system platform JADE, and the BPEL language for the web services orchestration. To validate our proposal, our architecture is implemented on a matching technique which details the various steps leading to a semi-automatic transformation process.","PeriodicalId":188977,"journal":{"name":"Fourth International Conference on Information and Communication Technology and Accessibility (ICTA)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122326505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-01DOI: 10.1109/ICTA.2013.6815315
M. Garbutt, M. Kyobe
Knowledge is generally acknowledged as essential for everyday life and a requisite for quality of life. Although arguably more so for people with disabilities, disabled people are often excluded due to their impairments. Worsening this exclusion, the expected benefits of information and communications technologies (ICT) in enabling knowledge practices and for assisting disabled people has not been realized as evidenced by a lower adoption rate of ICT by people with disabilities when compared to the adoption rate of ICT by non-disabled people. A review of literature identified two concomitant shortcomings. Firstly, there is a dearth of knowledge available on how disabled people gather and share knowledge, with research about knowledge practices focused predominantly on organizations and largely disregarding knowledge practices of the individual. Secondly, despite the fact that ICT is recognised as important both for disabled people and for knowledge practices, the relationships between disabled people, ICT, and knowledge practices are fundamentally unexplored. Considering information elemental for quality of life, this paper proposes a conceptual model for informing an investigation into the knowledge practices of disabled people and the role that information and communication technology plays in these practices.
{"title":"Knowledge practices of people with disabilities and the role of ICT","authors":"M. Garbutt, M. Kyobe","doi":"10.1109/ICTA.2013.6815315","DOIUrl":"https://doi.org/10.1109/ICTA.2013.6815315","url":null,"abstract":"Knowledge is generally acknowledged as essential for everyday life and a requisite for quality of life. Although arguably more so for people with disabilities, disabled people are often excluded due to their impairments. Worsening this exclusion, the expected benefits of information and communications technologies (ICT) in enabling knowledge practices and for assisting disabled people has not been realized as evidenced by a lower adoption rate of ICT by people with disabilities when compared to the adoption rate of ICT by non-disabled people. A review of literature identified two concomitant shortcomings. Firstly, there is a dearth of knowledge available on how disabled people gather and share knowledge, with research about knowledge practices focused predominantly on organizations and largely disregarding knowledge practices of the individual. Secondly, despite the fact that ICT is recognised as important both for disabled people and for knowledge practices, the relationships between disabled people, ICT, and knowledge practices are fundamentally unexplored. Considering information elemental for quality of life, this paper proposes a conceptual model for informing an investigation into the knowledge practices of disabled people and the role that information and communication technology plays in these practices.","PeriodicalId":188977,"journal":{"name":"Fourth International Conference on Information and Communication Technology and Accessibility (ICTA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131201622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-01DOI: 10.1109/ICTA.2013.6815293
Nour Ben Yahia, M. Jemni
The Inverse Kinematicss (IK) is a method for calculating the postures, in order to satisfy a given task by the user, based on degree of freedom of each joint. This method plays an important role in the animation and simulation of virtual characters to improve and facilitate the use of interfaces. In this paper, we present the description of an animation solver that allows the automatic moving of the different parts of a signing avatar body based on a greedy algorithm. The objective is to obtain a realistic animation of the virtual character that enables deaf person to visualize realistic gestures. Our approach is based on a thorough study of sign language and gestures classification. The challenge of this project is to find a good compromise between computational time and realistic representation that should be closer to real-time generation signs.
{"title":"Notice of Violation of IEEE Publication PrinciplesA greedy inverse kinematics algorithm for animating 3D signing avatars","authors":"Nour Ben Yahia, M. Jemni","doi":"10.1109/ICTA.2013.6815293","DOIUrl":"https://doi.org/10.1109/ICTA.2013.6815293","url":null,"abstract":"The Inverse Kinematicss (IK) is a method for calculating the postures, in order to satisfy a given task by the user, based on degree of freedom of each joint. This method plays an important role in the animation and simulation of virtual characters to improve and facilitate the use of interfaces. In this paper, we present the description of an animation solver that allows the automatic moving of the different parts of a signing avatar body based on a greedy algorithm. The objective is to obtain a realistic animation of the virtual character that enables deaf person to visualize realistic gestures. Our approach is based on a thorough study of sign language and gestures classification. The challenge of this project is to find a good compromise between computational time and realistic representation that should be closer to real-time generation signs.","PeriodicalId":188977,"journal":{"name":"Fourth International Conference on Information and Communication Technology and Accessibility (ICTA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115116228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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