Filters








383 Hits in 1.3 sec

Dialogue Systems and Planning [chapter]

Guy Camilleri
2002 Lecture Notes in Computer Science  
Cond-app, Prec, Effects and Subtasks are used for planning and plan recognition purpose (see Camilleri [11, 12] ).  ... 
doi:10.1007/3-540-46154-x_60 fatcat:f7lec4eigjh2hicdnaxvwmhh6e

An Ontology for Collaborative Decision Making [chapter]

Jacqueline Konaté, Pascale Zaraté, Aminata Gueye, Guy Camilleri
2020 Lecture Notes in Business Information Processing  
This article focuses on an ontology construction for collaborative decision making. To do this, a state of the art on collaborative decision-making, on ontology engineering and on collaboration engineering has been done. An eight-step ontology development methodology was adopted and implemented to build the ontology. A corpus made up of more than seventy-seven (77) documents was the starting point for the extraction of terms from the ontology and the UML (Unified Modeling Language) language
more » ... ed as a description language of our ontology. This ontology is intended to be the starting point for a facilitation support system in a Collaborative Decision Making process. The aim of the work is to produce a new system according the "Facilitator in the box" paradigm.
doi:10.1007/978-3-030-48641-9_13 fatcat:gwzsk3mnmvgr5mqhsxy5d6g4xa

DSS for Winemaker: A Dynamic Modeling Approach [chapter]

Hassan Ait Haddou, Guy Camilleri, Pascale Zaraté
2012 Lecture Notes in Business Information Processing  
We present a decision support system for the fermentation step in winemaking based on a mathematical model of kinetics of alcoholic fermentation. We used an optimization technique in order to predict the fermentation step. This optimization technique was carried out using the method of factorial analysis. The first interesting application of this system, rather than existing ones, comes from the fact that it can predict the evolution of pH during alcoholic fermentation. Recall that pH is used
more » ... oenology as an indicator of censorial properties, efficiency of sulfating and contamination risks. The second interesting application of this software is that it allows users "online" monitoring of the evolution of the constituents of grape musts.
doi:10.1007/978-3-642-32191-7_6 fatcat:b43gejnil5hyxjdhzdqp3pjgmy

Prediction of Ideas Number During a Brainstorming Session

Hassan Ait Haddou, Guy Camilleri, Pascale Zaraté
2012 Group Decision and Negotiation  
, Guy and Zaraté, Pascale Prediction of Ideas Number During a Brainstorming Session. (2014) Group Decision and Negotiation, vol. 23 (n° 2). pp. 271-298.  ...  [ , ]] ∈ [[ , − ]] ∈ [[ , ]] ∈ [[ , ]] = + − To link to this article : DOI :10.1007/s10726-012-9312-8 URL : http://dx.doi.org/10.1007/s10726-012-9312-8 To cite this version : Ait-Haddou, Hassan and Camilleri  ... 
doi:10.1007/s10726-012-9312-8 fatcat:u2dpqwn6wnbsnfrxhubrhrvzda

A Volunteer Design Methodology of Data Warehouses [chapter]

Amir Sakka, Sandro Bimonte, Lucile Sautot, Guy Camilleri, Pascale Zaraté, Aurelien Besnard
2018 Lecture Notes in Computer Science  
Open Archive Toulouse Archive Ouverte OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible To cite this version: Sakka Abstract. In the context of Volunteered Geographic Information (VGI), volunteers are not involved in the decisional processes. Moreover, VGI systems do not offer advanced historical analysis tools. Therefore, in this work, we propose to use Data Warehouse (DW) and OLAP systems to analyze VGI
more » ... ata, and we define a new DW design methodology that allows involving volunteers in the definition of analysis needs over VGI data. We validate it using a real biodiversity case study.
doi:10.1007/978-3-030-00847-5_21 fatcat:ntxhtbxgtrgz5c7pa2ecyrvlsa

Fundamentals of Neurogastroenterology: Physiology/Motility – Sensation

Guy Boeckxstaens, Michael Camilleri, Daniel Sifrim, Lesley A. Houghton, Sigrid Elsenbruch, Greger Lindberg, Fernando Azpiroz, Henry P. Parkman
2016 Gastroenterology  
The fundamental gastrointestinal functions include motility, sensation, absorption, secretion, digestion, and intestinal barrier function. Digestion of food and absorption of nutrients normally occurs without conscious perception. Symptoms of functional gastrointestinal disorders often are triggered by meal intake, suggesting abnormalities in the physiological processes are involved in the generation of symptoms. In this article, normal physiology and pathophysiology of gastrointestinal
more » ... , and the processes underlying symptom generation, are critically reviewed. The functions of each anatomic region of the digestive tract are summarized. The pathophysiology of perception, motility, mucosal barrier, and secretion in functional gastrointestinal disorders as well as effects of food, meal intake, and microbiota on gastrointestinal motility and sensation are discussed. Genetic mechanisms associated with visceral pain and motor functions in health and functional gastrointestinal disorders are reviewed. Understanding the basis for digestive tract functions is essential to understand dysfunctions in functional gastrointestinal disorders. T he complex process of digestion of food and absorption of nutrients normally occurs without conscious perception. Symptoms reported by patients with functional gastrointestinal disorders often are triggered by meal intake, suggesting that abnormalities in the physiological processes involved in digestion are involved. Evaluation of sensory function and gastrointestinal motility aims to identify abnormalities in neuromuscular function to ultimately guide therapeutic management. In this article, more general and region-specific aspects of normal physiology and pathophysiology, and the processes underlying symptom generation, are critically discussed. Normal Physiology: Main Components The fundamental gastrointestinal functions include sensation, motility, digestion, absorption, and secretion. Perception Peripheral nerves, afferent signaling. Human beings have the capability to consciously perceive a variety of highly differentiated sensations originating from the upper and lower sections of the gut. In the upper gastrointestinal (GI) tract, specific sensations amenable to conscious awareness range from temperature, taste, hunger, fullness, satiety, nausea, and pain. In the small and large bowel, distensions and contractions cause aversive sensations such as nausea, bloating, cramping, discomfort, and pain. Only a minority of the sensory information arising from the gastrointestinal tract is perceived consciously. The majority (estimated to be >90%) of afferent sensory information from the viscera serves homeostatic functions. The gastrointestinal tract is densely innervated to provide information on its luminal contents, processes regulating digestion and absorption, and potential threats. 1 This information was collected by intrinsic and extrinsic afferent nerves and regulates physiological responses for homeostasis and health. In brief, sensory neurons of the enteric nervous system activate local responses. Extrinsic afferent nerves transmit sensory information to the spinal cord or brainstem for further processing and integration (for brain processing, see later). In general, the extrinsic afferent innervation of the gut is conducted through the vagus nerve and the spinal afferents. The cell bodies of the vagus afferents are in the nodose ganglion, and mainly project to the nucleus of the solitary tract. Vagovagal reflexes result in stimulation of vagal efferents in the dorsal motor nucleus of the vagus nerve. Two examples of vagovagal reflexes are transient lower esophageal sphincter relaxations and mealinduced gastric accommodation. Abbreviations used in this paper: FGID, functional gastrointestinal disorder; GI, gastrointestinal; GNb3, Guanine nucleotide-binding protein G(I)/ G(S)/G(T) subunit b-3; IBS, irritable bowel syndrome; LES, lower esophageal sphincter; LM, longitudinal muscle; MMC, migrating motor complex. Most current article
doi:10.1053/j.gastro.2016.02.030 pmid:27144619 fatcat:7qwkkadt7ncm3elfachuesln64

Dynamic Models for Ideas Number Prediction in Brainstorming

Hassan Ait Haddou, Guy Camilleri, Pascale Zarate
2012 2012 45th Hawaii International Conference on System Sciences  
In this paper, we extend the approach presented in [1] to the cognitive model of brainstorming proposed by Brown and Paulus in [4]. In their work Brown and Paulus developed two dynamic models of brainstorming, a non-cognitive model and a cognitive model. These models describe for each participant, the evolution of ideas number over time, and are formalized by differential equations. Through solution functions of these models, we propose to calculate the number of ideas of each participant on
more » ... time intervals and thus in the future (called prediction). To enable computing solution functions, we used an optimization model to determine the model parameter values. In this paper, we propose an optimization model based on the fourth order Runge-Kutta's numerical method and we apply it to the cognitive model. Through some feasibility tests, we show the adequacy of the proposed approach to our prediction context.
doi:10.1109/hicss.2012.230 dblp:conf/hicss/HaddouCZ12 fatcat:5vjvjqkozrcnlcljgwav7h6c6e

Extracellular K + Dependence of Inward Rectification Kinetics in Human Left Ventricular Cardiomyocytes

Patrick Bailly, Maud Mouchonière, Jean-Pierre Bénitah, Lionel Camilleri, Guy Vassort, Paco Lorente
1998 Circulation  
Background-In human ventricular cells, the inwardly rectifying K ϩ current (I K1 ) is very similar to that of other mammalian species, but detailed knowledge about the K ϩ -dependent distribution of open and blocked states during rectification and about the K ϩ -dependent modulation of inactivation on hyperpolarization is currently lacking. Methods and Results-We used the whole-cell patch-clamp technique to record I K1 in myocytes isolated from subendocardial layers of left ventricular septum
more » ... om patients with nonfailing hearts with aortic stenosis and cardiac hypertrophy who were undergoing open-heart surgery. Outward currents were very small at voltages positive to the reversal potential but increased at high external [K ϩ ]. Chord conductance measurements and kinetic analyses allowed us to estimate the proportion of channels in the open state and of those showing either slow unblock or instantaneous unblock (the so-called slow or instantaneous "activation") on hyperpolarization: the distribution in the individual states was dependent on external [K ϩ ]. The proportion of channels unblocking slowly was greater than that of channels unblocking instantaneously on hyperpolarization from the plateau voltage range. Hence, because of the previously reported link between the presence of highly protonated blocking molecules and slow unblock kinetics, it is suggested that high cellular concentrations of spermine may account for the low outward current density recorded in these cells. The current decrease observed on extended hyperpolarization was significantly relieved by an increase in external [K ϩ ]. Conclusions-The pattern of I K1 current alterations observed in the present model of human ventricular hypertrophy might favor enhanced excitability and underlie ventricular arrhythmias, possibly via increased intracellular polyamine levels.
doi:10.1161/01.cir.98.24.2753 pmid:9851963 fatcat:iyb2lgdnbnho7dmn6d3zrs77pm

Multi-criteria Group Decision Making with Private and Shared Criteria: An Experiment [chapter]

Pascale Zaraté, Guy Camilleri, D. Marc Kilgour
2017 Lecture Notes in Business Information Processing  
OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao.univ-toulouse.fr/ Eprints ID : 19038 Abstract. Collective decision processes remain a common management approach in most organizations. In such processes, it seems important to offer participants the opportunity to confront the differences in their points of view. To this end, cognitive and
more » ... hnical tools are required that facilitate the sharing of individuals' reasoning and preferences, but at the same time allow them to keep some information and attitudes to themselves. The aim of our study is to assess whether, in the multi-criteria approach to problem structuring, decision-makers can be comfortable using shared criteria in addition to private criteria. For this purpose, an exploratory experiment with student subjects was conducted using the Group Decision Support System, GRUS.
doi:10.1007/978-3-319-52624-9_3 fatcat:wgjvkbkihje77ib6jmchln6pfa

UX Challenges in GDSS: An Experience Report [chapter]

Amir Sakka, Gabriela Bosetti, Julián Grigera, Guy Camilleri, Alejandro Fernández, Pascale Zaraté, Sandro Bimonte, Lucile Sautot
2019 Lecture Notes in Business Information Processing  
Other issues related to this general problem were "complex GUI in multi-criteria feature selection", and also "redundant controls and terminology".  Lack of awareness in the collaborative process: many  ...  The most serious and repeated issues were connected with two general problems:  Excess of information, or bloated GUIs: one representative example was the "overloaded report" for the decision-making process  ... 
doi:10.1007/978-3-030-21711-2_6 fatcat:6r7hpel4d5g55dftuinmrrwyo4

Electric Vehicles Fleet for Frequency Regulation Using a Multi-Agent System [chapter]

Jean-Baptiste Blanc-Rouchossé, Anne Blavette, Guy Camilleri, Marie-Pierre Gleizes
2018 Lecture Notes in Computer Science  
doi:10.1007/978-3-319-94580-4_7 fatcat:ti3lq34s7jhl5msfdi772fspfu

Negotiation and Collaborative Technologies in Organisations and Supply Chains: Introduction to the Special Issue

Guy Camilleri, Jorge E. Hernández
2016 Group Decision and Negotiation  
doi:10.1007/s10726-016-9491-9 fatcat:epaf466khvbxvdohmppiqt3lny

A Recommender System Based on Multi-Criteria Aggregation

Soumana Fomba, Pascale Zarate, Marc Kilgour, Guy Camilleri, Jacqueline Konate, Fana Tangara
2017 International Journal of Decision Support System Technology  
Recommender systems aim to support decision-makers by providing decision advice. We review briefly tools of Multi-Criteria Decision Analysis (MCDA), including aggregation operators, that could be the basis for a recommender system. Then we develop a multicriteria recommender system, STROMa (SysTem of RecOmmendation Multi-criteria), to support decisions by aggregating measures of performance contained in a performance matrix. The system makes inferences about preferences using a partial order on
more » ... criteria input by the decision-maker. To determine a total ordering of the alternatives, STROMa uses a multi-criteria aggregation operator, the Choquet integral of a fuzzy measure. Thus, recommendations are calculated using partial preferences provided by the decision maker and updated by the system. An integrated web platform is under development.
doi:10.4018/ijdsst.2017100101 fatcat:rmluljelljghvbed7u3d3kye4y

A Mixed Usability Evaluation on a Multi Criteria Group Decision Support System in Agriculture

Julián Grigera, Alejandra Garrido, Pascale Zaraté, Guy Camilleri, Alejandro Fernández
2018 Proceedings of the XIX International Conference on Human Computer Interaction - Interacción 2018  
Other issues specific to the GRUS GUI were detected, similar to those reported in the first part of section 4.1.  ...  Report ✔ 6 Time as a Progress Bar ✔ ✔ 7 Confusing "Join Meeting" functionality ✔ 8 Overloaded Report ✔ ✔ ✔ 9 Unclear current meeting's status ✔ ✔ 10 Redundant controls for "next step" ✔ ✔ 11 Complex GUI  ... 
doi:10.1145/3233824.3233852 dblp:conf/interaccion/GrigeraGZCF18 fatcat:dcumqv5s7fb4hfzuh2xzqepsza

Principle and evaluation of a self-Adaptive Multi-Agent System for State Estimation of electrical distribution network

Alexandre Perles, Guy Camilleri, Marie-Pierre Gleizes, Olivier Chilard, Dominique Croteau
2016 2016 World Congress on Sustainable Technologies (WCST)  
OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao.univ-toulouse.fr/ Eprints ID : 18866 The contribution was presented at WCST 2016 : http://www.wcst.org To link to this article URL : http://dx. Abstract-In our daily life, electricity becomes more and more important. Mainly for environmental concerns, governments tend to encourage integration
more » ... f generators which rely on renewable energy sources. Therefore, it is necessary to move from present electrical networks to smarter ones. These issues have contributed to the development of the concept of Smart Grid. One might well ask the question: how to add a layer of intelligence on electrical networks as we know them?
doi:10.1109/wcst.2016.7886584 fatcat:fovwb3q2eva6zbegjcavb4cexq
« Previous Showing results 1 — 15 out of 383 results