Mahieddine Djoudi

Université de Poitiers | UP · UFR of fundamental sciences

Nowadays, it is no more needed to do an enormous effort to distribute a lot of forms to thousands of people and collect them, then convert this from into electronic format to track people opinion about some subjects. A lot of web sites can today reach a large spectrum with less effort. The majority of web sites suggest to their visitors to leave ba...

The sheer volume of applications, data and users working in the cloud creates an ecosystem far too large to protect against possible attacks. Several attack detection mechanisms have been proposed to minimize the risk of data loss backed up to the cloud. However, these techniques are not reliable enough to protect them; this is due to the reasons o...

Waste management poses a significant challenge in large urban areas, demanding meticulous logistical planning and scientific insight to balance environmental impact and cost-effectiveness. Ali Mendjeli, a newly established city in Constantine, Algeria, exemplifies this challenge without a mapped and documented inventory. This study employs a Geogra...

Collaboration is a common work between many people which generates the creation of a common task. A computing environment can foster collaboration among peers to exchange and share knowledge or skills for succeeding a common project. Using a computing environment to collaborate allows keeping the information related to performed interactions. This...

This paper introduces a virtual laboratory that aims to support the quick development and easy assimilation of practical works by learners and exchange documents between them via a shared virtual space. The proposed laboratory, named 3DVL@ES (web-based 3D virtual laboratory in experimental science), defines an agile design process to automatically...

Cloud computing is an information technology model that provides computing and storage resources as a service. Data storage security remains the main challenge in adapting this new model. The common solution to secure data in the cloud is data encryption. However, handling all the data with the same security policy does not appear to be good practi...

Today, it is usual that a consumer seeks for others' feelings about their purchasing experience on the web before a simple decision of buying a product or a service. Sentiment analysis intends to help people in taking profit from the available opinionated texts on the web for their decision making, and business is one of its challenging areas. Cons...

The analysis of remote discussions is not yet at the same level as the face-to-face ones. The present paper aspires twofold. On the one hand, it attempts to establish a suitable environment of interaction and collaboration among learners by using the speech acts via a semi structured synchronous communication tool. On the other, it aims to define b...

K-anonymity is the most widely used approach to privacy preserving microdata which is mainly based on generalization. Although generalization-based k-anonymity approaches can achieve the privacy protection objective, they suffer from information loss. Clustering-based approaches have been successfully adapted for k-anonymization as they enhance the...

In this paper, we propose our enhanced approach to create a dedicated corpus for Algerian Arabic newspapers comments. The developed approach has to enhance an existing approach by the enrichment of the available corpus and the inclusion of the annotation step by following the Model Annotate Train Test Evaluate Revise (MATTER) approach. A corpus is...

Today, it is usual that a consumer seeks for others' feelings about their purchasing experience on the web before a simple decision of buying a product or a service. Sentiment analysis intends to help people in taking profit from the available opinionated texts on the web for their decision making, and business is one of its challenging areas. Cons...

The necessity to improve security in a multi-cloud environment has become very urgent in recent years. Although in this topic, many methods using the message authentication code had been realized but, the results of these methods are unsatisfactory and heavy to apply, which, is why the security problem remains unresolved in this environment. This a...

In this paper, we propose our enhanced approach to create a dedicated corpus for Algerian Arabic newspapers comments. The developed approach has to enhance an existing approach by the enrichment of the available corpus and the inclusion of the annotation step by following the Model Annotate Train Test Evaluate Revise (MATTER) approach. A corpus is...

It is very current in today life to seek for tracking the people opinion from their interaction with occurring events. A very common way to do that is comments in articles published in newspapers web sites dealing with contemporary events. Sentiment analysis or opinion mining is an emergent field who is the purpose is finding the behind phenomenon...

Nowadays, it is no more needed to do an enormous effort to distribute a lot of forms to thousands of people and collect them, then convert this from into electronic format to track people opinion about some subjects. A lot of web sites can today reach a large spectrum with less effort. The majority of web sites suggest to their visitors to leave ba...

Nowadays companies are increasingly adopting the technology ofcloud computing. This technology is subject to a lot of research and continuousadvances are made. The use of cloud computing in the companies advantagessuch as: reducing costs, sharing and exchange of information between institutions,but the data in the Cloud computing are susceptible to...

Cloud computing as a potential paradigm offers tremendous advantages to enterprises. With the cloud computing, the market's entrance time is reduced, computing capabilities is augmented and computing power is really limitless. Usually, to use the full power of cloud computing, cloud users has to rely on external cloud service provider for managing...

Interactive multimedia educational content has recently been of interest to attract attention on the learner and increase understanding by the latter. In parallel several open source authoring tools offer a quick and easy production of this type of content. As such, our contribution is to mediatize a course i.e. 'English' with the authoring system...

To ensure uninterrupted services to the cloud clients from federated cloud providers, it is important to guarantee an efficient allocation of the cloud resources to users to improve the rate of client satisfaction and the quality of the service provisions. It is better to get as more computing and storage resources as possible. In cloud domain seve...

It is very current in today life to seek for tracking the people opinion from their interaction with occurring events. A very common way to do that is comments in articles published in newspapers web sites dealing with contemporary events. Sentiment analysis or opinion mining is an emergent field who's the purpose is finding the behind phenomenon m...

Efcient resource management in dynamic cloud computing is receiving more and more attentions. Many works are still ongoing, since federated cloud computing is an open environment. We present in this paper a fexible model, new cloud operators can join the federation or leave it. The model integrates interactions between broker agents organizatio...

Nous présentons une approche de curation basée sur l'utilisation combinée de plusieurs outils numérique et appliquée au domaine du Learning Analytics.

It is a challenging task to identify sentiment polarity in Arabic journals comments. Algerian daily newspapers interest more and more people in Algeria, and due to this fact they interact with it by comments they post on articles in their websites. In this paper we propose our approach to classify Arabic comments from Algerian Newspapers into posit...

The growth of local data annually implies extra charges for the customers, which makes their business slowing down. Cloud computing paradigm comes with new technologies that offer a very economic and cost-effective solution, but the organizations are slow in accepting it due to security issues and challenges associated with it. Security is one of t...

This chapter surveys the development and current state of e-learning in the People’s Democratic Republic of Algeria. The author surveys the general social, economic, historical, and demographic background of Algeria and provides a review of its educational system. Analysis and statistics on the information and communications technology (ICT) infras...

Nowadays, it is no more needed to do an enormous effort to distribute a lot of forms to thousands of people and collect them, then convert this from into electronic format to track people opinion about some subjects. A lot of web sites can today reach a large spectrum with less effort. The majority of web sites suggest to their visitors to leave ba...

Nowadays companies are increasingly adopting the technology of cloud computing. This technology is subject to a lot of research and continuous advances are made. The use of cloud computing in the companies advantages such as: reducing costs, sharing and exchange of information between institutions, but the data in the Cloud computing are susceptibl...

Collaboration is a common work between many people which generates the creation of a common task. A computing environment can foster collaboration among peers to exchange and share knowledge or skills for succeeding a common project. Therefore, when users interact among themselves and with an environment, they provide a lot of information. This inf...

Cloud computing as a potential paradigm offers tremendous advantages to enterprises. With the cloud computing, the market's entrance time is reduced, computing capabilities is augmented and computing power is really limitless. Usually, to use the full power of cloud computing, cloud users has to rely on external cloud service provider for managing...

The purpose of this paper is to present an authoring tool for the development of a distance learning hypermedia intelligent tutoring system (HITS). Designed to satisfy guidelines of accessibility of the W3C recommendation for authors and learners that present disabilities, the authoring tool allows several authors geographically dispersed to cooper...

Navigation is the least understood aspect of web accessibility for many web developers, but is the most important for providing users with disabilities equal access to the web. It seems that the ability of users with disabilities to navigate over the web is not dependent on the graphical complexity, but on the markup used to create the structure of...

In this paper, we present a collaborative learning environment mediatized on the Internet. For its design, we take into account all the components intervening in the interaction and collaboration process and we propose an approach guided by ontologies (domain and application). The objective of this work is to allow multiple users (learners, teacher...

Nowadays, the Web has become one of the most widespread platforms for information change and retrieval. As it becomes easier to publish documents, as the number of users, and thus publishers, increases and as the number of documents grows, searching for information is turning into a cumbersome and time-consuming operation. Due to heterogeneity and...

Web accessibility is actually the most important aspect for providing access to information and interaction for people with disabilities. However, it seems that the ability of users with disabilities to navigate over the Web is not dependent on the graphical complexity, but on the markup used to create the structure of the website. Consequently, it...

Nowadays, the Web has become one of the most widespread platforms for information change and retrieval. As it becomes easier to publish documents, as the number of users, and thus publishers, increases and as the number of documents grows, searching for information is turning into a cumbersome and time-consuming operation. Because of the loose inte...

Adaptive learning technology allows for the development of more personalized online learning experiences with materials that adapt to student performance and skill level. The term "adaptive" is also used to describe Assistive Technologies that allow the usability of online based courses for learners with disabilities and special needs. Authoring to...

The objective of this article is to model and implement a learner Supervision and Control Tool during a remote learning session of practical work. This tool will be integrated in our Collaborative Virtual L@boratory. It serves the users (learners, teachers, tutors) of our virtual laboratory during the assistance and evaluation process. It allows th...

In this paper, we propose an improved scheme of non-blocking checkpointing algorithm for distributed systems that minimizes the request number. It is based on piggybacking of dependency vectors not on request messages but on computation messages and replies. Here, a process can initiate checkpointing only if it is a popular process (a process that...

One of the difficulties of teaching English is the prosody, including the stress. French learners have difficulties to encode this information about the word because it is irrelevant for them. Therefore, they have difficulty to produce this stress when they speak that language. Studies in this area have concluded that the dual-coding approach (audi...

Nowadays, the video documents like educational courses available on the web increases significantly. However, the information retrieval systems today can not return to the users (students or teachers) of parts of those videos that meet their exact needs expressed by a query consisting of semantic information. In this paper, we present a model of pe...

Today, the resources available on the web increases significantly. The motivation for the dissemination of knowledge and their acquisition by learners is central to learning. However, learners show differences between the ways of learning that suits them best. The objective of the work presented in this paper is to study how it is possible to integ...

Adaptive hypermedia is the answer to the "lost in hyperspace" syndrome, where the user has normally too many links to choose from, and little knowledge about how to proceed and select the most appropriate ones to him/her. Adaptive hypermedia thus offers a selection of links or content most appropriate to the user. Until very recently, little attent...

In this study we used a statistical analysis, based on a sub-sample of participants enrolled in the fifth years of Computer Science Department of Batna (Algeria) University, the effects of an online environment reading comprehension were investigated. The students' native language was Arabic, and they were learning English as a second foreign langu...

The use of the web in languages learning has been developed at very high speed these last years. Thus, we are witnessing many research and development projects set in universities and distance learning programs. However, the interest in research related to writing competence remains relatively low. Our proposed research examines the use of the web...

The objective of this article is to model and implement a learner supervision system during a remote session of practical works (PW). This system will serve the users (learners, teachers, tutors) of our virtual laboratory during the assistance and evaluation process. It also makes it possible for the teachers to be aware of the progress status of t...

The objective of the works presented in this article is to study how we can integrate models from cognitive theories and ontologies for the construction of adaptive hypermedia. The goal is to provide the system capacity enabling it to carry out reasoning on descriptions obtained in order to automatically adapt resources and services offered to a le...

In this paper we will use the specification of a biochemistry practical work to demonstrate the use of our virtual laboratory platform. This platform has an agent based architecture which we proposed in our previous work. We describe a generic architecture of a virtual laboratory. We have chosen biochemistry major because almost all its courses req...

Adaptive hypermedia is a relatively new direction of research on the crossroads of hypermedia and user modeling. Until very recently, little attention has been given to the complex task of authoring materials for Adaptive Educational Hypermedia (AEH). An author faces a multitude of problems when creating a personalized, rich learning experience for...

The purpose of the present research is trying to determine if the reading comprehension instruction can be enhanced by an online reading environment to compensate for the lack of time devoted to the English course at Algeria, Batna Computer Science Department. Our main research question is trying to provide us with an answer to the following questi...

This work is in line with the framework of the development of a 3D interactive environment to make it easy for university students to do their distant practical works (PW). This environment allows several learners to share a 3D work space. Therefore this is a multi users environment, distributed over a network and uses the virtual reality which all...

A key aspect of the design of any software system is its architecture. An architecture description provides a formal model of the architecture in terms of components and connectors and how they are composed together. COSA (Component-Object based Software Structures), is a software architecture model is based on object- oriented modeling and compone...

Learning requirements are increasing in Algeria because of population explosion and the policy of democratization of education. An estimated several thousand teachers in the deficit for the coming years in Algerian universities. If you look at training trainers who is supposed to take over shows that the number of positions available each year is s...

This paper presents a new algorithm for simultaneous resources sharing by several processes in distributed system. This algorithm treats the problem of message complexity which is an important factor in such a problem, and the waiting time of the requesting sites which can be considered as a quality measure of the distributed algorithms. In this al...

Conférence Internationale

Recently, middleware as an abstraction layer is completely integrated in development environments for resolving heterogeneity and guaranteeing the transparency communication of distributed components. The explicit separation of architecture and implementation is the main concern of the Model Driven Architecture (MDA), aiming to well understanding a...

The use of the mobile devices in language learning has been developed at a very high speed in the last years. Thus, we are witnessing many research and development projects set in universities and distance learning programs. However, the interest in research related to listening comprehension competence remains relatively low. Our proposed research...

Several routing protocols for mobile ad hoc networks have been proposed in the literature, each one based on a different strategic: proactive, reactive and hybrid. Some of these protocols have been studied and their performance is evaluated in detail. However a comparison between them is lacking to help determine an optimal strategy. This paper add...