Publications (277)
COMMUNICATION
Energy-free Security in Wireless Sensor Networks
Adel Elgaber (1) , Julien Bernard (1) , Yacouba Ouattara (1)
Wireless sensor networks are often deployed in open and uncontrolled environments that make them more vulnerable to security attacks. Cryptographic algorithms can be used to protect the data collected by the sensors against an intruder. The cost in terms of energy to provide enough security can be quite large as these algorithms may be very co(...)
Mots clés non renseignés
ARTICLE
How to take pedagogical requirements into account to design e-learning platforms by using patterns?
Tonguim Ferdinand Guinko, Laurence Capus Hatem Ben Sta
Pattern concept is often used to design educational systems. On the one hand, educational team uses patterns to describe pedagogical scenarios and on the other hand software engineers apply them in e-learning software development process. However, there is no any synergic framework between these two uses of patterns, that could allow pedagogic(...)
Engineering Instructional Design Software
ARTICLE
Energy-free Security in Wireless Sensor Networks
Adel Elgaber, Julien Bernard, Yacouba Ouattara
Wireless sensor networks are often deployed in open and uncontrolled environments that make them more vulnerable
to security attacks. Cryptographic algorithms can be used to protect the data collected by the sensors against an intruder. The cost in terms of energy to provide enough security can be quite large as these algorithms may be very c(...)
Wireless sensor networks; security; compression; energy
ARTICLE
Approche de découverte de nouvelles catégories dans un wiki sémantique basée sur les motifs fréquents
Y. Traoré, S. Malo, C. T. Diop, M. Lo, S. Ouaro
Dans cet article, nous proposons une approche de découverte de nouvelles catégories potentiellement utiles dans un wiki sémantique. Les pages du wiki sont sémantiquement annotées et des tags (mots clés) peuvent être associés librement à celles-ci. Les pages sont créées par les utilisateurs autorisés à partager des informations sur le wiki. Les(...)
Wiki sémantique, Ontologie, Motifs fréquents
ARTICLE
Évaluation de l’impact de fautes matérielles sur le logiciel par Model Checking
D. BASSOLE, Jean-Louis Lanet, and Axel Legay
La mutation de programme dû à un défaut d'environnement est susceptible de générer des problèmes de sécurité comme la non exécution de procédure de vérification, le saut de bloc d'instruction etc.. Pour les éradiquer il est nécessaire de comprendre les effets de ces perturbations sur le logiciel. Souvent les travaux explorent les effets au niv(...)
Mots clés non renseignés
ARTICLE
Toward a Pattern-based e-learning software design approach
Tonguim Ferdinand Guinko, Laurence Capus, Hatem Ben Sta
Enthusiasm for educational software sometimes hides some real problems, which have some negative repercussions on the efficiency and the quality of learning undertaken by learners. Among those problems are the poor analysis, the poor design and the ignorance of the pedagogical theoretical aspects in the design process. This work proposes an e-(...)
Engineering Instructional Design Software
ARTICLE
Three Thresholds for the Efficiency in Energy Management in WSN
Yacouba Ouattara, Christophe Lang, and Adel Elgaber
Nowadays, the domain of sensor networks constitutes a very active research field. People are using a lot of
low cost networks. As a result, they are facing an important energy management problem. Consequently, Researchers have tried to ensure long life to networks [1]-[8]. LEACH, PEGASUS, TEEN and APTEEN are pioneers in the reduction of WSN e(...)
Wirless, WSN
ARTICLE
Three Thresholds for the Efficiency in Energy Management in WSN
Yacouba Ouattara, Christophe Lang, and Adel Elgaber
Nowadays, the domain of sensor networks constitutes a very active research field. People are using a lot of
low cost networks. As a result, they are facing an important energy management problem. Consequently, Researchers have tried to ensure long life to networks [1]-[8]. LEACH, PEGASUS, TEEN and APTEEN are pioneers in the reduction of WSN e(...)
Wirless, WSN, Routing
ARTICLE
Remainder approach for the computation of digital straight line subsegment characteristics
JSD Ouattara, E Andres, G Largeteau-Skapin, R Zrour, TMY Tapsoba
Given a digital straight line D of known characteristics (a, b, c), and given two arbitrary discrete points A (x a, y a) and B (x b, y b) of it, we are interested in computing the characteristics of the digital straight segment (DSS) of D delimited by the endpoints A and B. Our method is based entirely on the remainder subsequence S={a x− c mo(...)
Remainder, Digital straight line, subsegment recognition, Discrete geometry
ARTICLE
Reducing Object-Oriented Testing Cost Through the Analysis of Antipatterns
Aminata Sabané
RÉSUMÉ: Les tests logiciels sont d'une importance capitale dans nos sociétés numériques. Le bon fonctionnement de la plupart des activités et services dépendent presqu'entièrement de la disponibilité et de la fiabilité des logiciels. Quoique coûteux, les tests logiciels demeurent le meilleur moyen pour assurer la disponibilité et la fiabilité(...)
Computer science
ARTICLE
Extraction des connaissances dans un wiki sémantique : apport des ontologies dans le prétraitement
Y. Traoré, S. Malo, C. T. Diop, M. Lo, S. Ouaro
Dans cet article, nous proposons une approche d’extraction des connaissances dans un wiki sémantique. Les pages du wiki sont annotées par une ontologie décrivant les connaissances socioculturelles des communautés ouest-africaines. Notre démarche consiste à extraire, à partir des pages du wiki, les tags (mot clés) qui y sont associés librement(...)
Wiki sémantique, extraction de connaissances, Ontologie, fouille de données
ARTICLE
Domain matters : bringing further evidence of the relationships among anti-patterns, application domains, and quality-related metrics in Java mobile apps.
Mario Linares Vasquez, Sam Klock, Collin McMillan, Aminata Sabane, Denys Poshyvanyk, Yann-Gael Gueheneuc
Some previous work began studying the relationship between application domains and quality, in particular through the prevalence of code and design smells (e.g., anti-patterns). Indeed, it is generally believed that the presence of these smells degrades quality but also that their prevalence varies across domains. Though anecdotal experiences(...)
Mots clés non renseignés
ARTICLE
Information Access Assistant Service (IAAS)
Kisito Kaboré, Oumarou Sie, Florence Sèdes, André Péninou
With the great diffusion of multimedia information on
the web, plenty of solutions are proposed to solve the web users’
cognitive overload. Despite the multitude of solutions, the web
users are still looking for more and more simple assistant in web
using. In this paper we present an information adaptation system
using characteristics of(...)
user group, customization, web services, information access, recomendation
ARTICLE
Performances of neural networks and LDPC decoders for OFDM high speed transmission in optical fiber
Serge Roland Sanou, François Zougmoré, Marcel Kebré, Zacharie Koalaga, Ali Doumounia
This paper presents a comparison of the performances of coded OFDM (Orthogonal Frequency Division Multiplexing) for optical broadband transmission using Random Neural Network (RNN), a variant of RNN, Soft Decision Decoding (SDD) and LDPC channel decoding techniques. The performance evaluation is based firstly on the Error Vector Magnitude (EVM(...)
OFDM, BER, EVM, Optical fiber, Decoder, Neural network, SDD, LDPC
ARTICLE
BER reduction for mQAM high-speed transmission in optical fiber networks using convolutional, BCH, RS and LDPC error correcting codes
S. R. Sanou, F. Zougmore, Z. Koalaga, M. Kebré
A comparative study of digital m-ary Quadrature Amplitude Modulation (mQAM) channel coding signals for optical high-speed transmission is presented in this article. The needs to transmit information at high speed are topical and relevant to the images, the sounds, and data of any kind, etc. The photonic networks are the subject of much researc(...)
mQAM, broadband, BER, optical fiber