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Статті в журналах з теми "Aide à la décision bi-Critère"
Medjkoune, Liza, Amélie Anota, Enora Vauleon, Apolline Monfillette-Djelad, and Mathieu Boone. "Impact des scores de qualité de vie et des fonctions cognitives sur la décision thérapeutique dans une population réelle de glioblastome en récidive après radio-chimiothérapie." Revue internationale de soins palliatifs Vol. 37, no. 4 (April 21, 2023): 161–71. http://dx.doi.org/10.3917/inka.234.0161.
Повний текст джерелаLemonnier, Louise, and Aurélia Leroux. "Le sepsis néonatal : comment l’identifier, comment le gérer." Le Nouveau Praticien Vétérinaire équine 14, no. 52 (2020): 21–29. http://dx.doi.org/10.1051/npvequi/52020.
Повний текст джерелаBalen, F., X. Dubucs, T. Sylvester, C. Tison, S. Charpentier, C. H. Houze-Cerfon, V. Bounes, and P. G. Reuter. "Régulation médicale de la dyspnée de l’enfant : intérêt d’une régulation pédiatrique." Annales françaises de médecine d’urgence, 2022. http://dx.doi.org/10.3166/afmu-2022-0430.
Повний текст джерелаДисертації з теми "Aide à la décision bi-Critère"
Rakotoarivelo, Jean-Baptiste. "Aide à la décision multi-critère pour la gestion des risques dans le domaine financier." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30067/document.
Повний текст джерелаWe are working on multicriteria decision analysis. We started with the study of risk typology through a huge review of literature. We have developed a theoretical model grouping four different categories of nineteen financial risk cases. Through this theoretical model, we have applied them to the "Caisse d'Epargne Midi-Pyrénées". In this thesis, we seek to make a contribution to the security management of information systems at the level of the savings bank. These analyzes are based on facts observed, collected and measured with real experiments resulting in its information system security policy and want to offer a pragmatic approach to the presentation of financial risk analysis through methods supporting. multicriteria decision analysis. The development of this model makes it possible to represent certain specific aspects of the financial risks that have often occurred in their activities. Our research led to the achievement of a concrete result in relation to the needs of the information system manager of the savings bank. It is an effective decision support system by constructing relative figures for the values of the criteria assigned by the RSSI
Nguyen, Minh Hieu. "Bi-objective optimization with proportional fairness." Electronic Thesis or Diss., Université Clermont Auvergne (2021-...), 2024. http://www.theses.fr/2024UCFA0036.
Повний текст джерелаBi-Objective Combinatorial Optimization (BOCO) is a type of multiple-criteria decision-making with many applications in different scientific areas, such as economics, supply chain, telecommunications, computer science, and social choice. It involves optimizing simultaneously two (conflict) objective functions in a finite feasible set of decision vectors. For BOCO, the concept of Pareto-optimal (non-dominated) solution plays an important role as it distinguishes between efficient and non-efficient solutions. Based on this concept, popular methods for solving BOCO usually construct a representation of the Pareto set that represents different trade-offs between the objectives. Proportional fairness is a widely studied concept in the literature that aims to distribute utilities to ensure fairness and equity among users while optimizing system performance. Related to the proportional changes, it can be used as a standard comparison for two solutions of BOCO, even when the two objectives have different orders of magnitude. The goal of this thesis is to propose a novel criterion for selecting preferred Pareto-optimal solutions in the Pareto set of a general BOCO problem using proportional fairness.For this purpose, we introduce the concept of rho-NF (Nash Fairness) solution for BOCO achieving some Nash equilibrium based on proportional fairness. The factor rho > 0 is presented to reflect the relative importance between the two objectives. We first present the rho-NF solution concept and its characterization. We then show the Pareto efficiency of rho-NF solutions. In fact, each rho-NF solution is necessarily a Pareto-optimal solution but the inverse is not always true. Finally, we show that rho-NF solutions can be found by optimizing a linear combination of two objectives. This is a crucial aspect in developing efficient algorithms for identifying rho-NF solutions.Subsequently, we present the exact algorithms to determine the rho-NF solutions for BOCO. In some cases where the existence of rho-NF solution is not guaranteed, we design a binary search algorithm on the space of the ratio between two objectives which converges in a logarithmic (of fixed parameters depending on the data) number of iterations. It can determine the existence of the rho-NF solution and compute one in the affirmative case. In contrast, when there always exists and may be numerous rho-NF solutions, we develop a Newton-like recursive algorithm to identify all the rho-NF solutions. At each recursive call, we find a rho-NF solution by minimizing iteratively linear combinations of two objectives. Notice that the total number of recursive calls is bounded by the number of Pareto-optimal solutions. Furthermore, there exists one case where finding rho-NF solutions is equivalent to solving classical fractional programming. In this setting, we use the Newton-Dinkelbach method which is broadly applied to fractional programming. If two objectives are linear, the method finds rho-NF solutions in a strongly polynomial number of iterations, regardless of the structure of the feasible set.Finally, we evaluate our algorithms through various instances of BOCO. Computational experiments show the effectiveness of our algorithms, indicating their rapid convergence and efficiency in identifying rho-NF solutions. Furthermore, for some small instances, we compute the whole Pareto set to show that the rho-NF solution set is a strict subset of the Pareto set
Ait, Ouassarah Azhar. "ADI : A NoSQL system for bi-temporal databases." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI046/document.
Повний текст джерелаNowadays, every company is operating in very dynamic and complex environments which require from its managers to have a deep understanding of its business in order to take rapid and relevant decisions, and thus maintain or improve their company's activities. They can rely on analyzing the data deluge generated by the company's activities. A new class of systems has emerged in the decision support system galaxy called "Operational Intelligence" (OI) to meet this challenge. The objective is to enable operational managers to understand what happened in the past as well as what is currently happening in their business. In this context, the notions of time and traceability turns out to play a crucial role to understand what happened in the company and what is currently happening in the company. In this thesis, we present "Axway Decision Insight" (ADI), an "Operational Intelligence" solution developed by Axway. ADI's key component is a proprietary bi-temporal and column-oriented DBMS that has specially been designed to meet OI requirements. Its bi-temporal capabilities enable to catch both data evolution in the modeled reality (valid time) and in the database (transaction time).We first introduce ADI by focusing on two topics: 1) the GUI that makes the platform "code-free". 2) The adopted bi-temporal modeling approaches. Then we propose a performance benchmark that meets ADI's requirements. Next, we present two bi-temporal query optimizations for ADI. The first one consists in redefining a complex bi-temporal query into: 1) a set of continuous queries in charge of computing aggregation operations as data is collected. 2) A bi-temporal query that accesses the continuous queries' results and feeds the GUI. The second one is a cost-based optimization that uses statistics on bi-temporal data to determine an "optimal" query plan. For these two optimizations, we conducted some experiments, using our benchmark, which show their interests
Ben, Souissi Souhir. "Vers une nouvelle génération d'outils d'aide à la décision s'appliquant à la prévention des risques lors de la prescription des antibiotiques : combinaison des technologies Web sémantique et de l'aide multicritère à la décision." Thesis, Valenciennes, 2017. http://www.theses.fr/2017VALE0027/document.
Повний текст джерелаMotivated by the well documented worldwide spread of adverse drug events that are associated to antibiotics usage, as well as the increased danger of antibiotic resistance (caused mainly by inappropriate prescribing and overuse), we propose a general architecture for recommendation systems adapted for this kind of context and we develop a specific system for antibiotic prescription (PARS). The type of context that our architecture covers is characterised by highly risky decisions or decisions with high stakes. Such a system cannot be based on machine learning, since there are no available training data sets or case bases. However, rules of good practice and expert knowledge are available, therefore our system should be able to model and implement them. The proposed solution is intended to be used by a decision maker who must adapt his/her decision both to each subject’s specific needs and characteristics, as well as to different types of evolution. Our approach is based on the combination of semantic technologies with MCDA (Multi-Criteria Decision Aids). The decision support process involves two steps. First, by taking into account the specific application domain, the approach evaluates the relevance of each alternative (action) in order to satisfy the needs of a given subject. The first level of the decision support model aims to select all the alternatives that have the potential to fulfill the subject’s needs. Subsequently, the second level consists of evaluating and sorting the selected alternatives in categories according to their adequacy to the characteristics of the subject. We propose an approach that exploits the knowledge schemes of semantic web technologies (ontologies) and that structures the recommendation rules into a suitable sorting method: the MR-Sort with Veto. By doing so, our solution is able to link and match heterogeneous knowledge sources expressed by experts. In collaboration with the EpiCURA Hospital Center, we have applied this approach in the medical domain and more specifically in the prescription of antibiotics. The system’s recommendations were compared with those expressed in the guidelines currently in use at EpiCURA. The results showed us that PARS allows for a better consideration of the sensitivity of the patients to the adverse effects of antibiotics. Moreover, by taking into account the additional characteristics of the patients, the model is able to adapt to contextual changes (such as new antibiotics, side effects and development of resistant micro-organisms)
Khannoussi, Arwa. "Intégration des préférences d'un opérateur dans les décisions d'un drone autonome et élicitation incrémentale de ces préférences." Thesis, Brest, 2019. http://www.theses.fr/2019BRES0080.
Повний текст джерелаA fully autonomous unmanned aerial vehicle (UAV) is an aircraft without a human pilot on board. It is consequently able to accomplish a mission without the intervention of a human operator and to make decisions in a totally autonomous way. This implies that the ground operator must have a high level of confidence in the decisions made by the UAV.The main objective of this thesis is therefore to propose a decision engine to be embedded in the autonomous UAV that guarantees a high level of operator confidence in the UAV's ability to make the "right" decisions. For this purpose, we propose a multi-level decision engine composed of two main decision levels. The first one monitors the state of the UAV and its environment to detect events that can disrupt the mission’s execution and trigger the second level. Once triggered, it allows to choose a highlevel action (landing, continuing,...) best adapted to the current situation from a set of possible actions. This engine also integrates the operator's preferences by using Multi-Criteria Decision Aiding models. They require a preliminary phase before the mission, where the operator's preferences are elicited, before being integrated into the UAV. To reduce the operator's effort during this phase, we propose an incremental elicitation process during which the questions submitted to the operator are deduced from the previous answers. This allows us to determine a model that accurately represents his or her preferences, while minimizing the number of questions
Agrebi, Maroi. "Méthodes d'aide à la décision multi-attribut et multi-acteur pour résoudre le problème de sélection dans un environnement certain/incertain : cas de la localisation des centres de distribution." Thesis, Valenciennes, 2018. http://www.theses.fr/2018VALE0013/document.
Повний текст джерелаThe research work presented in this thesis is part of the works’ continuity on multi-criteria group (decision-makers) decision-making, particularly in the field of the distribution centers’ location selection. Under certain environment, although the decision to select the location of the distribution centers has given rise in several research works, it has never been the object, to our knowledge, of a decision taken by several decision makers. In this regard, the first objective of this thesis is to develop a multi-attribute and multi-actor decision-making method (MAADM) to resolve the posed problem. For this purpose, we have adapted and extended the ELECTRE I method. Under uncertain environment, In view of the inherent uncertainty and inaccuracy of human decision-making, the future behavior of the market and companies, the second objective of this thesis is to propose a fuzzy multi-attribute and multi-actor decision-making method (FMAADM) to treat the problem in question. To this end, we have coupled the MAADM method with the fuzzy set theory. To validate the two contributions, we designed a decision support system (S-DSS) to implement the MAADM method and the FMAADM method. Based on the S-DSS, two experimental studies were conducted. We also applied a sensitivity analysis to verify the sensitivity of the solution retained vis-a-vis to weights’ variations of evaluation criteria. The obtained results prove that the MAADM method and the FMAADM method meet the desired objective and thus retained for the selection of the best location under certain/uncertain context of multi-attribute and multi-actor
Lapertot, Arnaud. "Méthodologie d'optimisation de composants et de systèmes énergétiques complexes : application au secteur résidentiel." Thesis, Aix-Marseille, 2021. http://www.theses.fr/2021AIXM0624.
Повний текст джерелаThis thesis is dedicated to the optimization of components and energy systems with an application in the residential sector. The methodology developed is composed of a sensitivity analysis, a multi-objective optimization and a multi-criteria decision-making aid to select the best compromise.First of all, an optimization of a domestic hot water production system is implemented numerically and is based on an experimental set-up in the IUSTI laboratory. The aim of this study is to optimize the performance of a heat pump-based system by improving its regulation according to different drawing profiles. Then, the procedure is applied to the parametric optimization of an earth-air heat exchanger (EAHE). The system uses geothermal resources to preheat or cool the air in a building by ventilation. The model of the earth-air heat exchanger has been experimentally validated with an existing geothermal platform at Strasbourg. A system that combines an EAHE, a double flow ventilation and a heat pump is also studied. Optimal sizing makes it possible to obtain a system that is profitable, autonomous and efficient for the different climates considered. Finally, the process is applied to the topological optimization of heat exchangers. The procedure identifies the set of topologies that has a good compromise between pressure drops and heat transfer. The decision aid methodology selects the final topology that allows to have an optimized distribution of solid elements in order to obtain the best compromise between these objectives