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Bouchelligua W.,University of Valenciennes and Hainaut‑Cambresis | Mahfoudhi A.,University of Sfax | Mezhoudi N.,UTIC | Daassi O.,UTIC | Abed M.,University of Valenciennes and Hainaut‑Cambresis
Lecture Notes in Business Information Processing | Year: 2010

In the recent years, the workflow system has increasingly gained considerable attention in the Information Systems community. It allows the integration of the various users to reach the objectives of the organization. The users operate their Information Systems through the User Interfaces (UI). Therefore there is a need to take into account the workflow model in the development process of the UI for an Information System. This paper has two objectives to attain. The first one is the proposition of a model driven approach to derive a plastic UIs of a Workflow Information System. The second objective lies in the use of Business Process Modelling Notation (BPMN) for the modelling of the interaction models (Task Model, Abstract User Interface, Concrete User Interface) with the aim of supplying more adapted models for a business expert who represents a main candidate in the success of the organization. It is through a case study applied to a real information system that our approach proves to be reliable. © 2010 Springer-Verlag.


Anemia has been reported in 15-30% of patients with acute coronary syndrome. This percentage is even higher during the in-hospital phase, when hemoglobin tends to reach a "nadir" value, and usually a larger number of anemic patients compared to admission are discharged from the hospital. Both retrospective evaluation of randomized clinical trials and data coming from prospective or retrospective observational studies have prompted out a direct relationship between anemia and adverse outcomes in acute coronary syndrome patients. Although anemia has the potential to worsen the myocardial ischemic insult in acute coronary syndromes, it is not yet clear whether it is responsible per se for a higher incidence of death and myocardial infarction or it behaves just like an additional risk factor. Blood transfusions may correct anemia but also accentuate rather than attenuate both short-term and long-term rates of major adverse cardiac events, suggesting the opportunity of a restrictive use of this therapy in patients with low levels of hemoglobin who are hemodynamically stable. © 2011 Il Pensiero Scientifico Editore.


Fradella G.,Cardiologia Generale 1 | De Luca L.,European Hospital | Tubaro M.,UTIC | Conte M.R.,A.O. Mauriziano | And 2 more authors.
Giornale Italiano di Cardiologia | Year: 2010

Since the early 1970s, intensive cardiac care is applied in coronary care units (CCUs), initially developed to treat lethal arrhythmias in patients with acute myocardial infarction. In the last decades, treatments offered within the CCUs have greatly expanded. Thus, these units have been called intensive cardiac care units (ICCUs) to reflect such evolution of care and the different epidemiology of patients admitted (subjects with acute coronary syndromes, acute and advanced heart failure, rhythm disturbances or severe valve dysfunction). At the same time, new drugs have become available but also different diagnostic, interventional and therapeutic procedures have been developed, resulting in better patient treatment and improved outcomes. These new devices require a high degree of specialization and specific skills that not every cardiologist is always used to. Consequently, specific training programs on intensive cardiac care for cardiologists working in ICCUs are clearly warranted. The present paper describes the advanced training programs on intensive cardiac care endorsed by the European Society of Cardiology and the Italian Association of Hospital Cardiologists (ANMCO). Both projects aim at improving current knowledge and skills of intensive cardiologists on specific pharmacologic and technical procedures, extending the competence of trained cardiologists to the management of critically ill cardiac patients, and uniforming the quality of care in any ICCU. © 2010 AIM Publishing Srl.


Colonna P.,U.O. di Cardiologia Ospedaliera | Abrignani M.G.,U.O. di Cardiologia | Colivicchi F.,UTIC | Verdecchia P.,Science di Medicina | And 9 more authors.
Giornale Italiano di Cardiologia | Year: 2013

The introduction in the therapeutic armamentarium of three new oral anticoagulants for the prevention of thromboembolism in atrial fibrillation (AF) has stimulated the development of this position paper from the Italian Association of Hospital Cardiologists (ANMCO). First, the pathophysiology of arterial thromboembolism in AF is reviewed, describing the mechanisms of action of the new oral anticoagulants, their pharmacology and pharmacokinetics, and highlighting differences and similarities observed in preclinical studies and trials. Stratification of thromboembolic and bleeding risk is made using different risk scores; a comprehensive analysis of the various international guidelines should emphasize convergences or divergences. An in-depth examination of the limitations of current therapeutic strategies for the prevention of stroke in non-valvular AF provides insight into the difficulty in maintaining adequate adherence to therapy with warfarin and a constant and effective anticoagulation, without wide fluctuations in prothrombin time international normalized ratio (INR) values. Clinical trials of new oral anticoagulants for AF are discussed in detail in the present document, with a focus on similarities and differences, efficacy and safety data, and the net clinical benefit of each new oral anticoagulant. Results obtained in elderly patients, or in patients with renal, liver and ischemic heart disease or previous stroke are reported separately, as well as those regarding combination therapy with antiplatelet agents. Finally, this document provides indications, practical applications and cost-effectiveness analysis of each new oral anticoagulant. It is of utmost importance to know how treatment should be started, how you should switch from warfarin, which patients should be maintained on warfarin, how and when cardioversion, catheter ablation or appendage closure should be performed, what drug and food interactions may affect these medications, and how treatment adherence may be improved to avoid therapy discontinuation. An accurate examination of the risk of bleeding is also provided, with special reference to laboratory monitoring of renal and hepatic function, timing for discontinuing these medications prior to surgery, and treatment of patients with major and minor bleeding. © 2013 Il Pensiero Scientifico Editore.


Ayadi W.,University of Angers | Elloumi M.,UTIC | Hao J.-K.,University of Angers
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2010

In the context of microarray data analysis, biclustering aims to identify simultaneously a group of genes that are highly correlated across a group of experimental conditions. This paper presents a Biclustering Iterative Local Search (BILS) algorithm to the problem of biclustering of microarray data. The proposed algorithm is highlighted by the use of some original features including a new evaluation function, a dedicated neighborhood relation and a tailored perturbation strategy. The BILS algorithm is assessed on the well-known yeast cell-cycle dataset and compared with two most popular algorithms. © 2010 Springer-Verlag.


Kacem A.,UTIC | Saidani A.,UTIC | Belaid A.,LORIA
Proceedings of the International Conference on Document Analysis and Recognition, ICDAR | Year: 2011

In this paper we present a student information sheet reading system. Relevant algorithm is proposed to locate and label handwritten answer field. As information sheets can be filled in Arabic and/or in French, automating the script language differentiation is a pre-recognition required in the proposed system. We have developed a robust and fast field classification and script language identification method, based on a decision tree, to make these processing practical for sheet recognition. To this end, the system uses several novel features (loops, descenders, diacritics) and analyses the lower profile of script. The classification rates are 92.5% for numeric fields, 94.34% for Arabic scripts and 94.66% for French scripts. Experimental results, carried on 80 sheets, show our system provides an effective way to convert printed sheets into computerized format or collect information for database from printed sheets. © 2011 IEEE.


Marrakchi Z.,University Pierre and Marie Curie | Parvez H.,University Pierre and Marie Curie | Klic A.,University Pierre and Marie Curie | Mehrez H.,University Pierre and Marie Curie | Marrakchi H.,UTIC
IEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS | Year: 2010

An application specific inflexible FPGA (ASIF) is an FPGA with reduced flexibility that can implement a set of application circuits which will operate at mutually exclusive times. These circuits are efficiently placed and routed on an FPGA to minimize the total routing switches required by the architecture. Later all the unused routing switches are removed from the FPGA to generate an ASIF. An ASIF for a set of 17 MCNC benchmark circuits is found to be between 16 and 5 times smaller than a mesh-based unidirectional FPGA required to map any of these circuits. © 2010 IEEE.


Merhbene L.,UTIC | Zouaghi A.,UTIC | Zrigui M.,University of Monastir
ICAART 2010 - 2nd International Conference on Agents and Artificial Intelligence, Proceedings | Year: 2010

In this paper we propose an hybrid system of Arabic words disambiguation. To achieve this goal we use the methods employed in the domain of information retrieval: Latent semantic analysis, Harman, Croft, Okapi, combined to the lesk algorithm. These methods are used to estimate the most relevant sense of the ambiguous word. This estimation is based on the calculation of the proximity between the current context (Context of the ambiguous word), and the different contexts of use of each meaning of the word. The Lesk algorithm is used to assign the correct sense of those proposed by the LSA, Harman, Croft and Okapi. The results found by the proposed system are satisfactory, we obtained a rate of disambiguation equal to 76%.


Essaadali R.,École de Technologie Supérieure of Montreal | Jebali C.,École de Technologie Supérieure of Montreal | Grati K.,UTIC | Kouki A.,École de Technologie Supérieure of Montreal
Canadian Conference on Electrical and Computer Engineering | Year: 2015

The AIS is one among the standards of radio communication system to be approved in the whole of the maritime environment. The adoption of AIS technology as a radio data maritime network that hopes for the rise of added values to the services of maritime industry allowing not only the safety of the ships and the environmental protection, but also improving the organization of the ports and the operations. The goal of this work consists on implementing the protocol layers of mobile AIS station on a DSP by using an embedded operating system: Visual DSP kernel. The solution comprises embedded software for both class A and class B AIS mobile equipment that can use CSTDMA or SOTDMA. © 2015 IEEE.


In a number of domains, like in DNA microarray data analysis, we need to cluster simultaneously rows (genes) and columns (conditions) of a data matrix to identify groups of rows coherent with groups of columns. This kind of clustering is called biclustering. Biclustering algorithms are extensively used in DNA microarray data analysis. More effective biclustering algorithms are highly desirable and needed.We introduce BiMine, a new enumeration algorithm for biclustering of DNA microarray data. The proposed algorithm is based on three original features. First, BiMine relies on a new evaluation function called Average Spearmans rho (ASR). Second, BiMine uses a new tree structure, called Bicluster Enumeration Tree (BET), to represent the different biclusters discovered during the enumeration process. Third, to avoid the combinatorial explosion of the search tree, BiMine introduces a parametric rule that allows the enumeration process to cut tree branches that cannot lead to good biclusters.The performance of the proposed algorithm is assessed using both synthetic and real DNA microarray data. The experimental results show that BiMine competes well with several other biclustering methods. Moreover, we test the biological significance using a gene annotation web-tool to show that our proposed method is able to produce biologically relevant biclusters. The software is available upon request from the authors to academic users.

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