Nadia Nouali-Taboudjemat

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The challenges of wireless and mobile computing environments have attracted the attention of researchers to revisit the conventional implementation of distributed computing paradigms. In this paper we propose to revisit the conventional implementation of the Two Phase Commit (2PC) protocol which is a fundamental asset of transactional technology for(More)
The challenges of wireless and mobile computing environments have attracted the attention of researchers to revisit the conventional transaction paradigm. Indeed, this paradigm is an indispensable asset in modern information systems. The atomicity property of a distributed transaction is ensured with the use of an atomic commit protocol (ACP). Due to their(More)
Recently, advances in mobile computing development have renewed the interest in the transaction techniques, in particular atomic commit protocols (ACPs). In this study, we propose a simulation platform for mobile distributed transaction systems and use it to compare the performances of a set of mobile ACPs. The results demonstrate the necessity of(More)
The transaction paradigm ensures consistency in the presence of concurrent accesses to shared data and in the presence of failures. Traditionally, the transaction semantics is defined by the ACID properties (Atomicity, Consistency, Isolation and Durability) which implementation is through such mechanisms as commitment protocols ensuring Atomicity and(More)
layer signalling protocol, SIP offers mobility management capability. However SIP Terminal Mobility suffers from considerable handoff latency which is unsuitable for real time applications and frequent local movements (intra domain handoffs). Hierarchical Mobile SIP (HMSIP) was then proposed as a solution to reduce the SIP handoff delay and to provide a(More)
There are numerous projects dealing with disaster management and emergency response that use wireless sensor networks technologies. Indeed, WSNs offer a good alternative compared to traditional ad hoc networks. Air pollution monitoring, forest fire detection, landslide detection, natural disaster prevention, industrial sense and control applications,(More)
Disaster management and risk prevention in Algeria have undergone many changes in the recent years. Important efforts have been provided on the legal and organizational sides to set the right conditions for an integrated and collaborative framework for disaster management in the country. The aim is to address the lack of information sharing, coordination(More)
Association rules mining (ARM) is a well-known combinatorial optimization problem aiming at extracting relevant rules from given large-scale datasets. According to the state of the art, the bio-inspired methods proved their efficiency by generating acceptable solutions in a reasonable time when dealing with small and medium size instances. Unfortunately, to(More)