Pub Date : 2013-10-01DOI: 10.1109/ICTA.2013.6815287
Mohamed Koutheair Khribi
Learner models represent a basic knowledge asset that can be used to ensure personalization within e-learning systems. These models can be built only based on learners activities, tracked and gathered on the web server side. In this paper, we propose to outline the general principles of an entirely automated web mining based approach for modeling learners in learning management systems. So, we consider a learner model with three components: the learner's profile, the learner's knowledge, and the learner's educational preferences. These learner's model components are inferred automatically from usage data, based on web mining techniques. Then, a hierarchical multi-level model based collaborative filtering approach is applied for modeling learners into groups.
{"title":"A web mining based approach for automatic student model discovery","authors":"Mohamed Koutheair Khribi","doi":"10.1109/ICTA.2013.6815287","DOIUrl":"https://doi.org/10.1109/ICTA.2013.6815287","url":null,"abstract":"Learner models represent a basic knowledge asset that can be used to ensure personalization within e-learning systems. These models can be built only based on learners activities, tracked and gathered on the web server side. In this paper, we propose to outline the general principles of an entirely automated web mining based approach for modeling learners in learning management systems. So, we consider a learner model with three components: the learner's profile, the learner's knowledge, and the learner's educational preferences. These learner's model components are inferred automatically from usage data, based on web mining techniques. Then, a hierarchical multi-level model based collaborative filtering approach is applied for modeling learners into groups.","PeriodicalId":188977,"journal":{"name":"Fourth International Conference on Information and Communication Technology and Accessibility (ICTA)","volume":"13 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":"124931094","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.2013.6815305
Anis Elbahi, M. Mahjoub, Mohamed Nazih Omri
The assistive technology and e-learning have been widely used to improve web accessibility for disabled users. One of the issues of online web-based applications is to understand how a user interacts with online application and the strategy by which he reasons to perform a given activity. Know what the web user is doing can provide useful clues to better understand his behavior in order to guide him in his interaction process. This study proposes a methodology to analyze user mouse movement in order to infer the task performed by the user. To do this, a Hidden Markov Model is used for modeling the interaction of the learner with an e-learning application. The obtained results show the ability of our model to analyze the interaction in order to recognize the task performed by the learner.
{"title":"Hidden Markov model for inferring user task using mouse movement","authors":"Anis Elbahi, M. Mahjoub, Mohamed Nazih Omri","doi":"10.1109/ICTA.2013.6815305","DOIUrl":"https://doi.org/10.1109/ICTA.2013.6815305","url":null,"abstract":"The assistive technology and e-learning have been widely used to improve web accessibility for disabled users. One of the issues of online web-based applications is to understand how a user interacts with online application and the strategy by which he reasons to perform a given activity. Know what the web user is doing can provide useful clues to better understand his behavior in order to guide him in his interaction process. This study proposes a methodology to analyze user mouse movement in order to infer the task performed by the user. To do this, a Hidden Markov Model is used for modeling the interaction of the learner with an e-learning application. The obtained results show the ability of our model to analyze the interaction in order to recognize the task performed by the learner.","PeriodicalId":188977,"journal":{"name":"Fourth International Conference on Information and Communication Technology and Accessibility (ICTA)","volume":"99 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":"115667523","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.2013.6815284
Houssem Abdellaoui, M. B. Mohamed, Khaireddine Bacha, M. Zrigui
Accessibility of e-learning systems to people with some disabilities is a current common problem. So, to create accessible e-learning platforms, we need a richer implementation of their pedagogical content. An ontological representation of learning object can be suitable way to encourage reusability, share and interoperability of learning object. The aim of this study is to present a design of an accessible learning object model using an ontological approach and compliant to IMS-AccessFor All v3.0 specification. The use of ontologies will define a semantic content structures and relationships between learning object, their components and their alternatives. We will use Protégé development tool.
电子学习系统对某些残疾人的可访问性是当前的一个普遍问题。因此，要创建可访问的电子学习平台，我们需要更丰富地实现其教学内容。学习对象的本体表示可以促进学习对象的可重用性、共享性和互操作性。本研究的目的是提出一个使用本体论方法并符合IMS-AccessFor All v3.0规范的可访问学习对象模型的设计。本体的使用将定义一个语义内容、结构和学习对象、它们的组件和它们的替代品之间的关系。我们将使用proprosamuise开发工具。
{"title":"Ontology based description of an accessible learning object","authors":"Houssem Abdellaoui, M. B. Mohamed, Khaireddine Bacha, M. Zrigui","doi":"10.1109/ICTA.2013.6815284","DOIUrl":"https://doi.org/10.1109/ICTA.2013.6815284","url":null,"abstract":"Accessibility of e-learning systems to people with some disabilities is a current common problem. So, to create accessible e-learning platforms, we need a richer implementation of their pedagogical content. An ontological representation of learning object can be suitable way to encourage reusability, share and interoperability of learning object. The aim of this study is to present a design of an accessible learning object model using an ontological approach and compliant to IMS-AccessFor All v3.0 specification. The use of ontologies will define a semantic content structures and relationships between learning object, their components and their alternatives. We will use Protégé development tool.","PeriodicalId":188977,"journal":{"name":"Fourth International Conference on Information and Communication Technology and Accessibility (ICTA)","volume":"2 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":"131135743","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.2013.6815302
Thomas Mtonga
Computers have become a huge and indispensable gadget in supporting the daily activities of all human beings. One of the areas which seem to benefit a lot from computers is the educational sector. Using computers, lessons are made simple through printing work in bulk, searching for information, communicating with learners and so on. This study sought to establish the availability of computers in Zambian schools for the blind and determine how accessible the computers were to blind learners. Furthermore, the study sought to investigate the benefits of using computers for the blind in the country. The study revealed alarming low levels of computers in schools for the blind. The ratios for one computer to the number of learners were intriguing and very saddening. The study also showed that 16/18 learners with visual impairments had no access to computers. Meaning the majority of blind learners significantly miss out on the benefit that can come from computers. In order to collect the information presented above, a qualitative research approach was used. Thirty respondents participated in the study. Twelve were administrators and teachers while eighteen were pupils. The respondents recommended that schools needed to be stocked with working computers installed with speech programs.
{"title":"A situational analysis on the availability and access to computers for educational purposes by learners with visual impairements in Zambi: A case of three basic and three high schools for the blinds","authors":"Thomas Mtonga","doi":"10.1109/ICTA.2013.6815302","DOIUrl":"https://doi.org/10.1109/ICTA.2013.6815302","url":null,"abstract":"Computers have become a huge and indispensable gadget in supporting the daily activities of all human beings. One of the areas which seem to benefit a lot from computers is the educational sector. Using computers, lessons are made simple through printing work in bulk, searching for information, communicating with learners and so on. This study sought to establish the availability of computers in Zambian schools for the blind and determine how accessible the computers were to blind learners. Furthermore, the study sought to investigate the benefits of using computers for the blind in the country. The study revealed alarming low levels of computers in schools for the blind. The ratios for one computer to the number of learners were intriguing and very saddening. The study also showed that 16/18 learners with visual impairments had no access to computers. Meaning the majority of blind learners significantly miss out on the benefit that can come from computers. In order to collect the information presented above, a qualitative research approach was used. Thirty respondents participated in the study. Twelve were administrators and teachers while eighteen were pupils. The respondents recommended that schools needed to be stocked with working computers installed with speech programs.","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":"122838811","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.2013.6815307
L. Merhbene, A. Zouaghi, M. Zrigui
In this paper we propose an experimental study for some supervised algorithms to disambiguate arabic words. Due to the lack of linguistic data for the Arabic language, we work on non-annotated corpus and with the help of four annotators; we were able to annotate the different samples containing the ambiguous words. Since that, we test the naïve Bayes algorithm, the decision lists and the exemplar based algorithm. During the experimental study, we test the influence of the window size on the disambiguation quality, the derivation and the technique of smoothing for the (2n+1)-grams. We find that the exemplar based algorithm achieves the best rate of precision.
{"title":"An experimental study for some supervised lexical disambiguation methods of arabic language","authors":"L. Merhbene, A. Zouaghi, M. Zrigui","doi":"10.1109/ICTA.2013.6815307","DOIUrl":"https://doi.org/10.1109/ICTA.2013.6815307","url":null,"abstract":"In this paper we propose an experimental study for some supervised algorithms to disambiguate arabic words. Due to the lack of linguistic data for the Arabic language, we work on non-annotated corpus and with the help of four annotators; we were able to annotate the different samples containing the ambiguous words. Since that, we test the naïve Bayes algorithm, the decision lists and the exemplar based algorithm. During the experimental study, we test the influence of the window size on the disambiguation quality, the derivation and the technique of smoothing for the (2n+1)-grams. We find that the exemplar based algorithm achieves the best rate of precision.","PeriodicalId":188977,"journal":{"name":"Fourth International Conference on Information and Communication Technology and Accessibility (ICTA)","volume":"23 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":"128948954","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.2013.6815295
Mehrez Boulares, M. Jemni
HMM-based models are widely used in many fields such as pattern recognition, speech recognition or Part-of-speech tagging. However, A HMM can be considered as a simplest dynamic Bayesian network. This network allows us to design a probabilistic graphical model that can be used in machine translation field especially for sign language machine translation. In this paper, we present a Bayesian Learning based method to train the alignment between a simple GLOSS form and a more complicated GLOSS form using sign language specificities such as space locative and classifier predicates.
{"title":"Toward HMM based machine translation for ASL","authors":"Mehrez Boulares, M. Jemni","doi":"10.1109/ICTA.2013.6815295","DOIUrl":"https://doi.org/10.1109/ICTA.2013.6815295","url":null,"abstract":"HMM-based models are widely used in many fields such as pattern recognition, speech recognition or Part-of-speech tagging. However, A HMM can be considered as a simplest dynamic Bayesian network. This network allows us to design a probabilistic graphical model that can be used in machine translation field especially for sign language machine translation. In this paper, we present a Bayesian Learning based method to train the alignment between a simple GLOSS form and a more complicated GLOSS form using sign language specificities such as space locative and classifier predicates.","PeriodicalId":188977,"journal":{"name":"Fourth International Conference on Information and Communication Technology and Accessibility (ICTA)","volume":"43 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":"128653564","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.2013.6815294
Ameera M. Almasoud, Hend Suliman Al-Khalifa
Portable Document Format (PDF) documents are increasingly being used to disseminate files over the web. PDF is a file format that is independent of the application used to create it. In order to make such file format universally accessible, it needs to follow certain standards defined by W3C. Yet, not all PDF files are equally accessible, especially for blind people. Blind people confront many difficulties with this type of document, in particular Arabic PDF. They are moving away from this type of documents while most of the documents on the web are of this kind. In this paper, we investigate the problems encountered by Arab blind people while accessing Arabic PDF files, and suggest solutions to overcome such problems.
{"title":"Investigating accessibility problems of Arabic PDF documents","authors":"Ameera M. Almasoud, Hend Suliman Al-Khalifa","doi":"10.1109/ICTA.2013.6815294","DOIUrl":"https://doi.org/10.1109/ICTA.2013.6815294","url":null,"abstract":"Portable Document Format (PDF) documents are increasingly being used to disseminate files over the web. PDF is a file format that is independent of the application used to create it. In order to make such file format universally accessible, it needs to follow certain standards defined by W3C. Yet, not all PDF files are equally accessible, especially for blind people. Blind people confront many difficulties with this type of document, in particular Arabic PDF. They are moving away from this type of documents while most of the documents on the web are of this kind. In this paper, we investigate the problems encountered by Arab blind people while accessing Arabic PDF files, and suggest solutions to overcome such problems.","PeriodicalId":188977,"journal":{"name":"Fourth International Conference on Information and Communication Technology and Accessibility (ICTA)","volume":"25 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":"117006674","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.2013.6815311
Mariam Ben Hassen, Mohamed Turki, F. Gargouri
One of the main problems of capitalizing on knowledge lies in the choice of knowledge on which it is necessary to capitalize. This knowledge has different sources, and must be identified, localized, analyzed and evaluated in order to determine the ones which are actually crucial. This paper addresses the problem of knowledge localization centered on process analysis. We propose a new meta-model of the organization's processes to model knowledge localization, entitled OPM4KL. This meta-model enriches graphical representation of the organization's processes by integrating the notion of knowledge. It has been illustrated through applying it to a real case study in the context of the Association of Protection of Motors-Disabled of Sfax-Tunisia (ASHMS).
{"title":"Towards a meta-model of the organization's processes modelling for knowledge localization","authors":"Mariam Ben Hassen, Mohamed Turki, F. Gargouri","doi":"10.1109/ICTA.2013.6815311","DOIUrl":"https://doi.org/10.1109/ICTA.2013.6815311","url":null,"abstract":"One of the main problems of capitalizing on knowledge lies in the choice of knowledge on which it is necessary to capitalize. This knowledge has different sources, and must be identified, localized, analyzed and evaluated in order to determine the ones which are actually crucial. This paper addresses the problem of knowledge localization centered on process analysis. We propose a new meta-model of the organization's processes to model knowledge localization, entitled OPM4KL. This meta-model enriches graphical representation of the organization's processes by integrating the notion of knowledge. It has been illustrated through applying it to a real case study in the context of the Association of Protection of Motors-Disabled of Sfax-Tunisia (ASHMS).","PeriodicalId":188977,"journal":{"name":"Fourth International Conference on Information and Communication Technology and Accessibility (ICTA)","volume":"16 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":"126637565","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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