119 research outputs found

    Strategies in Case-Based Argumentation-Based Negotiation: An Application for the Tourism Domain

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    [EN] Negotiation is a key solution to find an agreement between conflicting parties especially during the purchase journey. This paper treats the negotiations between a travel agency and its customers in the domain of tourism. Both automated negotiation and argumentation are gathered to create a framework for automated agents, presenting a travel agency and its customers, to negotiate a trip and exchange arguments. Agents take advantage of their past experiences and use Case-Based Reasoning to select the best strategy to follow. We represent agents using two types of profiles, Argumentative profile that represents agents¿ ways of reasoning and Preference profile that embodies customers¿ preferences in the domain of tourism.Bouslama, R.; Jordán, J.; Heras, S.; Amor, NB. (2020). Strategies in Case-Based Argumentation-Based Negotiation: An Application for the Tourism Domain. Springer. 205-217. https://doi.org/10.1007/978-3-030-51999-5_17S205217Aamodt, A., Plaza, E.: Case-based reasoning: foundational issues, methodological variations, and system approaches. AI Commun. 7(1), 39–59 (1994)Adnan, M.H.M., Hassan, M.F., Aziz, I., Paputungan, I.V.: Protocols for agent-based autonomous negotiations: a review. In: ICCOINS, pp. 622–626. IEEE (2016)Amgoud, L., Parsons, S.: Agent dialogues with conflicting preferences. In: Meyer, J.-J.C., Tambe, M. (eds.) ATAL 2001. LNCS (LNAI), vol. 2333, pp. 190–205. Springer, Heidelberg (2002). https://doi.org/10.1007/3-540-45448-9_14Amgoud, L., Prade, H.: Generation and evaluation of different types of arguments in negotiation. In: NMR, pp. 10–15 (2004)Bouslama, R., Ayachi, R., Ben Amor, N.: A new generic framework for argumentation-based negotiation using case-based reasoning. In: Medina, J., et al. (eds.) IPMU 2018. CCIS, vol. 854, pp. 633–644. Springer, Cham (2018). https://doi.org/10.1007/978-3-319-91476-3_52Bouslama, R., Ayachi, R., Ben Amor, N.: A new generic framework for mediated multilateral argumentation-based negotiation using case-based reasoning. In: Kern-Isberner, G., Ognjanović, Z. (eds.) ECSQARU 2019. LNCS (LNAI), vol. 11726, pp. 14–26. Springer, Cham (2019). https://doi.org/10.1007/978-3-030-29765-7_2Dimopoulos, Y., Moraitis, P.: Advances in argumentation based negotiation. In: Negotiation and Argumentation in Multi-agent Systems: Fundamentals, Theories, Systems and Applications, pp. 82–125 (2014)Hadidi, N., Dimopoulos, Y., Moraitis, P.: Tactics and concessions for argumentation-based negotiation. In: Computational Models of Argument: Proceedings of COMMA 2012, vol. 245, pp. 285–296 (2012)Hadoux, E., Hunter, A.: Strategic sequences of arguments for persuasion using decision trees. In: AAAI (2017)Heras, S., Jordán, J., Botti, V., Julián, V.: Argue to agree: a case-based argumentation approach. IJAR 54(1), 82–108 (2013)Heras, S., Jordán, J., Botti, V., Julián, V.: Case-based strategies for argumentation dialogues in agent societies. Inf. Sci. 223, 1–30 (2013)Jennings, N.R., Faratin, P., Lomuscio, A.R., Parsons, S., Sierra, C., Wooldridge, M.: Automated negotiation: prospects, methods and challenges. Int. J. Group Decis. Negot. 10(2), 199–215 (2001)Lazar, C.M.: Internet-an aid for e-tourism. Ecoforum J. 8(1), 1–4 (2019)Lopes, F., Novais, A.Q., Coelho, H.: Bilateral negotiation in a multi-agent energy market. In: Huang, D.-S., Jo, K.-H., Lee, H.-H., Kang, H.-J., Bevilacqua, V. (eds.) ICIC 2009. LNCS, vol. 5754, pp. 655–664. Springer, Heidelberg (2009). https://doi.org/10.1007/978-3-642-04070-2_71Park, S., Tussyadiah, I., Mazanec, J., Fesenmaier, D.: Travel personae of american pleasure travelers: a network analysis. J. Travel Tour. Mark. 27, 797–811 (2010)Rahwan, I., Ramchurn, S.D., Jennings, N.R., Mcburney, P., Parsons, S., Sonenberg, L.: Argumentation-based negotiation. KER 18(4), 343–375 (2003)Rahwan, I., Sonenberg, L., McBurney, P.: Bargaining and argument-based negotiation: some preliminary comparisons. In: Rahwan, I., Moraïtis, P., Reed, C. (eds.) ArgMAS 2004. LNCS (LNAI), vol. 3366, pp. 176–191. Springer, Heidelberg (2005). https://doi.org/10.1007/978-3-540-32261-0_12Sierra, C., Jennings, N.R., Noriega, P., Parsons, S.: A framework for argumentation-based negotiation. In: Singh, M.P., Rao, A., Wooldridge, M.J. (eds.) ATAL 1997. LNCS, vol. 1365, pp. 177–192. Springer, Heidelberg (1998). https://doi.org/10.1007/BFb0026758Soh, L.K., Tsatsoulis, C.: Agent-based argumentative negotiations with case-based reasoning. In: AAAI Fall Symposium Series on Negotiation Methods for Autonomous Cooperative Systems, pp. 16–25 (2001)Sycara, K.P.: Persuasive argumentation in negotiation. Theory Decis. 28(3), 203–242 (1990). https://doi.org/10.1007/BF00162699Walton, D.: Argumentation Schemes for Presumptive Reasoning. Routledge, Abingdon (2013

    Les tumeurs oncocytaires de la thyroide : a propos de 25 cas

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    But : Les tumeurs Ă  cellules oncocytaires de la thyroĂŻde (TOT) ont donnĂ© jusqu’à ces derniĂšres annĂ©es de nombreuses controverses, du fait des difficultĂ©s Ă  diffĂ©rencier les tumeurs bĂ©nignes des tumeurs malignes, entraĂźnant des attitudes thĂ©rapeutiques divergentes. L’objectif de cette Ă©tude est de voir Ă  travers une revue de littĂ©rature les aspects cliniques et pathologiques particuliers aux tumeurs oncocytaires de la thyroĂŻde et d’essayer de rĂ©unir les Ă©lĂ©ments cliniques et anatomopathologiques pouvant prĂ©dire l’aspect malin de ces tumeurs. MĂ©thodes : Il s’agit d’une Ă©tude rĂ©trospective menĂ©e sur une pĂ©riode de 19 ans Ă©talĂ©e de janvier 1988 Ă  dĂ©cembre 2006, pendant laquelle nous avons colligĂ© 25 cas de tumeurs oncocytaires de la thyroĂŻde. La circonstance de dĂ©couverte Ă©tait un nodule thyroĂŻdien pour tous les patients. Resultats : Notre travail repose sur une sĂ©rie de 25 tumeurs oncocytaires de la thyroĂŻde, dont 3 cancers oncocytaires (12%). Ces tumeurs reprĂ©sentent 1,2% des tumeurs thyroĂŻdiennes opĂ©rĂ©es durant la mĂȘme pĂ©riode. L’ñge moyen des patients ayant eu un carcinome oncocytaire Ă©tait de 65 ans, la taille moyenne de ces carcinomes Ă©tait de 4 cm. Le traitement a consistĂ© en une loboisthmectomie pour les adĂ©nomes et en une thyroĂŻdectomie totale associĂ©e Ă  un curage ganglionnaire cervical suivi d’une irathĂ©rapie pour les carcinomes. Une seule patiente ayant prĂ©sentĂ© un carcinome oncocytaire a dĂ©veloppĂ© une mĂ©tastase Ă  distance. L’évolution Ă©tait favorable chez tous les autres patients avec recul variable de 9 mois Ă  22 ans avec une moyenne de 5 ans. Conclusion : Les tumeurs oncocytaires de la thyroĂŻde sont reconnues Ă  la lumiĂšre des travaux rĂ©cents comme une entitĂ© anatomo-clinique particuliĂšre, se diffĂ©renciant des tumeurs vĂ©siculaires (auxquelles elles ont Ă©tĂ© longtemps assimilĂ©es) par une Ă©volution plus pĂ©jorative et par une insensibilitĂ© Ă  l’iode radioactif avec une frĂ©quence accrue de mĂ©tastases pour les carcinomes.Mots clĂ©s : tumeur oncocytaire, tumeur Ă  cellules de Hurthle, cancer de la thyroĂŻde, thyroidectomie

    Stenose tracheale post-intubation

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    Objective : Remind the main post-intubation tracheal stenosis etiopathogenic characteristics, specify the preoperative assessment and discuss the different therapeutic modalities.Materials and methods : This retrospective study includes 28 cases of scarring tracheal stenosis treated between 1987 and 2003.Results : They are acquired, secondary to intubation and / or tracheotomy. The results of our study highlight the important role of medical and endoscopic treatment. However, the best treatment of tracheal stenosis remains the surgical treatment based on tracheal resection anastomosis, 89% of good results in our study.Conclusion : Our results indicate that the endoscopic treatment of post-intubation tracheal stenoses can be considered a safe first-line therapy, leaving the complex and relapsing stenoses, for surgical resection.Keywords : Tracheal stenosis, tracheal intubation, tracheotomy

    Thrombophlebite du sinus caverneux d’origine otogene : a propos d’un cas

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    But : Nous illustrons un cas de thrombophlĂ©bite du sinus caverneux compliquant une oto-mastoĂŻdite. Nous Ă©tudions Ă  la lumiĂšre de la littĂ©rature les difficultĂ©s diagnostiques et l’importance de la mise en oeuvre d’un traitement prĂ©coce et adaptĂ© afin d’éviter les sĂ©quelles ultĂ©rieures. Observation : Il s’agit d’un enfant ĂągĂ© de 14 ans, qui avait prĂ©sentĂ© une exophtalmie avec oedĂšme palpĂ©bral bilatĂ©ral et une baisse de l’acuitĂ© visuelle d’aggravation progressive au dĂ©cours d’un Ă©pisode otitique. L’examen avait objectivĂ© une paralysie faciale pĂ©riphĂ©rique droite et Ă  l’otoscopie un tympan droit bombĂ© congestif.La TDM avait mis en Ă©vidence une thrombophlĂ©bite du sinus caverneux associĂ©e Ă  un abcĂšs cĂ©rĂ©bral et Ă  un abcĂšs rĂ©tropharyngĂ© avec une oto-mastoĂŻdite homolatĂ©rale. Le malade a Ă©tĂ© traitĂ© par une antibiothĂ©rapie Ă  large spectre associĂ©e Ă  une hĂ©parinothĂ©rapie, avec mastoĂŻdectomie droite et drainage de l’abcĂšs rĂ©tro-pharyngĂ©. L’évolution a Ă©tĂ© marquĂ©e par la rĂ©gression totale de la paralysie faciale, avec repermĂ©abilisation du sinus caverneux et disparition totale de l’abcĂšs temporal au contrĂŽle scannographique. Le patient a gardĂ© comme seule sĂ©quelle une cĂ©citĂ© mono oculaire gauche. Conclusion : La thrombophlĂ©bite du sinus caverneux est une affection rare, surtout dans son origine otogĂšne elle doit ĂȘtre diagnostiquĂ©e et traitĂ©e le plutĂŽt possible, afin de prĂ©venir les sĂ©quelles ou d’obtenir la rĂ©gression de ces derniĂšres. Le traitement doit associer une antibiothĂ©rapie Ă  large spectre, les anticoagulants et un drainage chirurgical appropriĂ© du foyer septique.Mots-clĂ©s : ThrombophlĂ©bite du sinus caverneux, Otite moyenne aiguĂ«, complication

    α7-Nicotinic Acetylcholine Receptor: Role in Early Odor Learning Preference in Mice

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    Recently, we have shown that mice with decreased expression of α7-nicotinic acetylcholine receptors (α7) in the olfactory bulb were associated with a deficit in odor discrimination compared to wild-type mice. However, it is unknown if mice with decreased α7-receptor expression also show a deficit in early odor learning preference (ELP), an enhanced behavioral response to odors with attractive value observed in rats. In this study, we modified ELP methods performed in rats and implemented similar conditions in mice. From post-natal days 5–18, wild-type mice were stroked simultaneously with an odor presentation (conditioned odor) for 90 s daily. Control mice were only stroked, exposed to odor, or neither. On the day of testing (P21), mice that were stroked in concert with a conditioned odor significantly investigated the conditioned odor compared to a novel odor, as observed similarly in rats. However, mice with a decrease in α7-receptor expression that were stroked during a conditioned odor did not show a behavioral response to that odorant. These results suggest that decreased α7-receptor expression has a role in associative learning, olfactory preference, and/or sensory processing deficits

    The Common Swift Louse Fly, Crataerina pallida: An Ideal Species for Studying Host-Parasite Interactions

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    Little is known of the life-history of many parasitic species. This hinders a full understanding of host-parasitic interactions. The common swift louse fly, Crataerina pallida Latreille (Diptera: Hippoboscidae), an obligate haematophagous parasite of the Common Swift, Apus apus Linnaeus 1758, is one such species. No detrimental effect of its parasitism upon the host has been found. This may be because too little is known about C. pallida ecology, and therefore detrimental effects are also unknown. This is a review of what is known about the life-history of this parasite, with the aim of promoting understanding of its ecology. New, previously unreported observations about C. pallida made from personal observations at a nesting swift colony are described. Unanswered questions are highlighted, which may aid understanding of this host-parasite system. C. pallida may prove a suitable model species for the study of other host-parasite relationships

    Interspecific variation in the relationship between clutch size, laying date and intensity of urbanization in four species of hole-nesting birds

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    The increase in size of human populations in urban and agricultural areas has resulted in considerable habitat conversion globally. Such anthropogenic areas have specific environmental characteristics, which influence the physiology, life history, and population dynamics of plants and animals. For example, the date of bud burst is advanced in urban compared to nearby natural areas. In some birds, breeding success is determined by synchrony between timing of breeding and peak food abundance. Pertinently, caterpillars are an important food source for the nestlings of many bird species, and their abundance is influenced by environmental factors such as temperature and date of bud burst. Higher temperatures and advanced date of bud burst in urban areas could advance peak caterpillar abundance and thus affect breeding phenology of birds. In order to test whether laying date advance and clutch sizes decrease with the intensity of urbanization, we analyzed the timing of breeding and clutch size in relation to intensity of urbanization as a measure of human impact in 199 nest box plots across Europe, North Africa, and the Middle East (i.e., the Western Palearctic) for four species of hole-nesters: blue tits (Cyanistes caeruleus), great tits (Parus major), collared flycatchers (Ficedula albicollis), and pied flycatchers (Ficedula hypoleuca). Meanwhile, we estimated the intensity of urbanization as the density of buildings surrounding study plots measured on orthophotographs. For the four study species, the intensity of urbanization was not correlated with laying date. Clutch size in blue and great tits does not seem affected by the intensity of urbanization, while in collared and pied flycatchers it decreased with increasing intensity of urbanization. This is the first large-scale study showing a species-specific major correlation between intensity of urbanization and the ecology of breeding. The underlying mechanisms for the relationships between life history and urbanization remain to be determined. We propose that effects of food abundance or quality, temperature, noise, pollution, or disturbance by humans may on their own or in combination affect laying date and/or clutch size

    Variation in clutch size in relation to nest size in birds

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