Download or read book CONCEPTION ET REALISATION D UN SYSTEME UTILISANT DES RESEAUX DE NEURONES POUR L IDENTIFICATION ET LA CARACTERISATION A BORD DE SATELLITES DE SIGNAUX TRANSITOIRES DE TYPE SIFFLEMENT written by FRANCK.. ELIE and published by . This book was released on 1997 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: LA DETECTION DE CHAMPS D'ONDES ELECTROMAGNETIQUES OU ELECTROSTATIQUES, DE NATURE TRANSITOIRE, DANS LES PLASMAS SPATIAUX, EST IMPORTANTE CAR ELLE PERMET ENTRE AUTRES D'IDENTIFIER ET DE CARACTERISER DES PROCESSUS EN COURS DE GENERATION OU D'INTERACTION. LA COLLECTE DE CES SIGNAUX DEPUIS UN SATELLITE POSE DES PROBLEMES LIES A LA CAPACITE DES MEMOIRES EMBARQUEES ET AU DEBIT DE LA TELEMESURE. LA SOLUTION QUE NOUS AVONS ADOPTEE POUR REDUIRE LE NOMBRE DE DONNEES A TRANSMETTRE AU SOL CONSISTE A EFFECTUER, A BORD DU SATELLITE, UNE DETECTION SPECIFIQUE DES SIGNAUX RECHERCHES. AU COURS DE CETTE ETUDE, NOUS AVONS CONCU ET REALISE DEUX SYSTEMES. LE PREMIER EST DEDIE A L'ETUDE DES PHENOMENES DE TYPE SIFFLEMENT. IL PERMET D'EFFECTUER, EN TEMPS REEL, LA DETECTION ET LA CARACTERISATION DE CES PHENOMENES (AVEC 97.7% DE DETECTION ET UNE RESOLUTION SUR L'EVALUATION DU PARAMETRE DE DISPERSION DE 11%). CES PERFORMANCES SONT OBTENUES EN UTILISANT DES RESEAUX DE NEURONES DE TYPE TDNN. POUR LEUR REALISATION MATERIELLE, NOUS AVONS CREE UN ASIC EN TECHNOLOGIE FPGA. L'INTERET DE CETTE APPROCHE TECHNOLOGIQUE VIS-A-VIS DES COMPOSANTS DE TYPE DSP EST LIE AUX CONTRAINTES D'ALLOCATION DE RESSOURCES DES SYSTEMES EMBARQUES (MASSE, VOLUME, PUISSANCE, ETC.). NOUS AVONS ENSUITE ETUDIE LA POSSIBILITE DE GENERALISER NOTRE APPROCHE A L'ENSEMBLE DES PHENOMENES TRANSITOIRES. A LA DIFFERENCE DU SYSTEME DEDIE AUX SIFFLEMENTS, TOUTES LES CLASSES DE TRANSITOIRES N'ETANT PAS A PRIORI PREVISIBLES, CELA IMPOSE DEUX CONTRAINTES : D'UNE PART UN MINIMUM D'INTERACTION ENTRE L'EXPERIMENTATEUR AU SOL ET LE SYSTEME EMBARQUE, ET D'AUTRE PART LA POSSIBILITE DE MODIFIER LES PARAMETRES DU SYSTEME NEURONAL DEPUIS LE SOL. NOUS AVONS MENE CETTE ETUDE JUSQU'A LA REALISATION D'UN NEURO-PROCESSEUR (MICROPROCESSEUR DEDIE AUX TRAITEMENTS NEURONAUX) EN TECHNOLOGIE FPGA. SES CARACTERISTIQUES ONT ETE DEFINIES DE MANIERE A CE QU'IL SOIT ADAPTE A L'ANALYSE DE L'ENSEMBLE DES PHENOMENES TRANSITOIRES, D'OU SON NOM : SINGLE HIGH-REVERSED-9 QUOTATION MARKNUTSRIGHT SINGLE QUOTATION MARK, POUR NEURAL UNIT FOR TRANSIENTS SIGNALS.
Download or read book APPROCHE RESEAUX DE NEURONES POUR LA CLASSIFICATION D EMISSIONS STRUCTUREES DE TYPE SIFFLEMENT written by XAVIER.. MINIERE and published by . This book was released on 1994 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: LA THESE CONSISTE EN L'IDENTIFICATION DE SIGNAUX GEOPHYSIQUES DE TYPE SIFFLEMENT A BORD D'UN SATELLITE, A PARTIR DE RESEAUX DE NEURONES. TOUTE CETTE ETUDE EST BASEE SUR DES DONNEES TBF D'UNE COMPOSANTE DU CHAMP MAGNETIQUE MESUREE PAR LE SATELLITE ARCAD-3. APRES AVOIR DEFINI LE FORMAT DE DONNEES LE PLUS REPRESENTATIF DES EVENEMENTS A RECONNAITRE, DIFFERENTES METHODES D'IDENTIFICATION ONT ETE TESTEES. LES METHODES LINEAIRES CLASSIQUES AYANT MONTRE UN NIVEAU DE PERFORMANCE INSUFFISANT, NOTRE INTERET S'EST PORTE PLUS PARTICULIEREMENT SUR L'IDENTIFICATION PAR RESEAU DE NEURONES. LE RESEAU RETENU EST UN RESEAU DE NEURONES A SYNAPSES A RETARD DE TYPE TDNN, POUR LEQUEL NOUS OBTENONS UN TAUX DE RECONNAISSANCE DE 87.8%. UN SYSTEME LOGICIEL BASE SUR CE RESEAU A ETE DEVELOPPE: IL PERMET DE SATISFAIRE UNE IDENTIFICATION QUI SOIT A LA FOIS AUTOMATIQUE, CONTINUE ET EN TEMPS REEL A BORD D'UN SATELLITE. L'ASPECT MATERIEL DE CE SYSTEME EST SUCCINCTEMENT ABORDE
Download or read book Algorithmes adaptifs et r seaux de neurones pour la mesure en temps r el de la dimension fractale de signaux lectrophysiologiques written by Luc Lavayssiere and published by . This book was released on 1996 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: EN UTILISANT DES RESEAUX DE NEURONES, DES ALGORITHMES D'APPROXIMATION STOCHASTIQUE ET LA PROGRAMMATION PARALLELE, ON DEVELOPPE DES ALGORITHMES RECURSIFS DE MESURE DE LA DIMENSION FRACTALE DE CORRELATION POUR LA CARACTERISATION DE SIGNAUX STATIONNAIRES ET POUR LA SURVEILLANCE EN TEMPS REEL DE L'ETAT DE SYSTEMES DYNAMIQUES INSTATIONNAIRES. ON MONTRE QUE L'ALGORITHME ADAPTATIF EST UN OUTIL DE DETECTION FIABLE DE LA TRANSITION ENTRE LE CHAOS ET LA PERIODICITE, MEME EN PRESENCE DE BRUIT. IL PEUT ETRE UTILISE POUR LOCALISER DES EVENEMENTS TRANSITOIRES CRITIQUES SUR DES ENREGISTREMENTS NON STATIONNAIRES DE LONGUE DUREE, COMME LES ENREGISTREMENTS DE SIGNAUX ELECTROPHYSIOLOGIQUES ECG OU EEG OU UNE CHUTE DE LA DIMENSION FRACTALE A ETE PRESSENTIE EXPERIMENTALEMENT COMME UN FACTEUR DE RISQUE CLINIQUE IMPORTANT. ON VALIDE LES ALGORITHMES SUR L'ATTRACTEUR THEORIQUE DE ROSSLER ET ON ETUDIE EN DETAIL L'INFLUENCE DU BRUIT SUR LA MESURE. DES RESULTATS PRELIMINAIRES SUR UN SIGNAL ECG DE SOURIS CONFIRMENT LA FAISABILITE D'UNE DETECTION D'ETATS TRANSITOIRES PERIODIQUES OU QUASI-PERIODIQUES PAR UNE MESURE ADAPTATIVE DE LA DIMENSION FRACTALE
Download or read book R seaux de neurones written by Mohamed Ibnkahla and published by . This book was released on 1996 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'OBJECTIF DE CE TRAVAIL EST D'INTRODUIRE DE NOUVEAUX ALGORITHMES ET ARCHITECTURES NEURONAUX AFIN DE LES APPLIQUER AU DOMAINE DES TRANSMISSIONS PAR SATELLITE. CE MEMOIRE EST DIVISE EN TROIS PARTIES. LA PREMIERE PARTIE EST THEORIQUE. ELLE PROPOSE DE NOUVELLES STRUCTURES NEURONALES COMME LES RESEAUX DE NEURONES VECTORIELS, LES RESEAUX DE NEURONES SUR DES VARIETES ET LES RESEAUX D'OPERATEURS. LA DEUXIEME PARTIE EST CONSACREE AUX APPLICATIONS AUX TRANSMISSIONS PAR SATELLITE SUSCITES PAR LE CENTRE NATIONAL D'ETUDES SPATIALES (CNES). NOUS AVONS D'ABORD UTILISE LES RESEAUX DE NEURONES POUR LA MODELISATION DE CANAUX NON LINEAIRES SANS MEMOIRE COMME LES TUBES A ONDE PROGRESSIVE (TOP), PAR EXEMPLE. LA METHODE NEURONALE OFFRE DE MEILLEURES PERFORMANCES QUE LES OUTILS CLASSIQUES. NOUS AVONS ENSUITE APPLIQUE LES RESEAUX NEURONAUX A L'IDENTIFICATION ET LA CARACTERISATION DE CHAINES DE TRANSMISSION PAR SATELLITE CONTENANT UN ELEMENT NON LINEAIRE SANS MEMOIRE. LES OUTILS NEURONAUX SONT UTILISES FINALEMENT POUR LA DETECTION ET LA CARACTERISATION DE CHANGEMENTS QUI PEUVENT TOUCHER UN CANAL DE TRANSMISSION PAR SATELLITE. LA TROISIEME PARTIE DE LA THESE ANALYSE LES PROPRIETES DE CONVERGENCE DES RESEAUX NEURONAUX. DEUX ETUDES SONT PRESENTEES. LE PREMIERE ETUDE ANALYSE L'INFLUENCE DU NOMBRE DE COUCHES SUR LES PROPRIETES DE CONVERGENCE DE LA RETROPROPAGATION DANS LE CAS D'UN RESEAU MULTI-COUCHES LINEAIRE. LA DEUXIEME ETUDE EST CONSACREE A UN RESEAU NON LINEAIRE UTILISE POUR MODELISER LA CARACTERISTIQUE D'AMPLITUDE D'UN TOP.
Download or read book Identification de syst mes utilisant les r seaux de neurones written by Héctor Manuel Romero Ugalde and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce rapport porte sur le sujet de recherche de l'identification boîte noire du système non linéaire. En effet, parmi toutes les techniques nombreuses et variées développées dans ce domaine de la recherche ces dernières décennies, il semble toujours intéressant d'étudier l'approche réseau de neurones dans l'estimation de modèle de système complexe. Même si des modèles précis ont été obtenus, les principaux inconvénients de ces techniques restent le grand nombre de paramètres nécessaires et, en conséquence, le coût important de calcul nécessaire pour obtenir le niveau de pratique de la précision du modèle désiré. Par conséquent, motivés pour remédier à ces inconvénients, nous avons atteint une méthodologie complète et efficace du système d'identification offrant une précision équilibrée, la complexité et les modèles de coûts en proposant, d'une part, de nouvelles structures de réseaux de neurones particulièrement adapté à une utilisation très large en matière de modélisation système pratique non linéaire, d'autre part, un simple et efficace technique de réduction de modèle, et, troisièmement, une procédure de réduction de coût de calcul. Il est important de noter que ces deux dernières techniques de réduction peut être appliquée à une très large gamme d'architectures de réseaux de neurones sous deux simples hypothèses spécifiques qui ne sont pas du tout contraignant. Enfin, la dernière contribution importante de ce travail est d'avoir montré que cette phase d'estimation peut être obtenue dans un cadre robuste si la qualité des données d'identification qu'il oblige. Afin de valider la procédure d'identification système proposé, des exemples d'applications entraînées en simulation et sur un procédé réel, de manière satisfaisante validé toutes les contributions de cette thèse, confirmant tout l'intérêt de ce travail.
Download or read book CONCEPTION ET REALISATION D UN RESEAU DE NEURONES INTEGRE EN TECHNOLOGIE CMOS POUR LA RECONNAISSANCE AUTOMATIQUE DE CHIFFRES MANUSCRITS written by PIERRE-YVES.. ALLA and published by . This book was released on 1994 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES RECHERCHES DANS LE DOMAINE DES RESEAUX DE NEURONES SONT TRES ACTIVES DEPUIS LE DEBUT DES ANNEES 80. LA DECOUVERTE DE NOUVEAUX ALGORITHMES D'APPRENTISSAGE PLUS PERFORMANTS, MAIS AUSSI UNE MEILLEURE COMPREHENSION DES PROPRIETES ET DES LIMITES DES RESEAUX DE NEURONES, ONT PERMIS LA REALISATION DE MODELES EFFICACES DANS DE NOMBREUX DOMAINES COMME LA RECONNAISSANCE OU LE CONTROLE DE PROCESSUS. LES PROPRIETES DES RESEAUX RESULTENT DU COMPORTEMENT COLLECTIF DES NEURONES FONCTIONNANT EN SIMULTANEITE, CE QUI REND LEUR SIMULATION SUR DES MACHINES SEQUENTIELLES CLASSIQUES ASSEZ COUTEUSE EN TEMPS. CETTE CONSTATATION, AINSI QUE D'EVENTUELLES CONTRAINTES DE PORTABILITE, ONT MOTIVE LES RECHERCHES SUR L'INTEGRATION DES RESEAUX DE NEURONES. L'APPROCHE PRESENTEE ICI EST FONDEE SUR LA SYNTHESE AUTOMATIQUE. NOUS EXPOSONS UNE ARCHITECTURE PERMETTANT LA SYNTHESE RAPIDE DE CIRCUITS NUMERIQUES INTEGRANT DES RESEAUX DE NEURONES. NOUS RAPPELONS DANS UN PREMIER TEMPS LES PRINCIPES THEORIQUES DES NEURONES FORMELS, ET PRESENTONS LES PRINCIPALES REALISATIONS DE CIRCUITS INTEGRES EFFECTUEES DANS CE DOMAINE. PUIS NOUS DECRIVONS L'ARCHITECTURE DES PROCESSEURS NEURONES ET LEUR SCHEMA D'INTERCONNEXION. ENFIN, UNE LARGE PARTIE DE CE MANUSCRIT EST CONSACRE A LA CONCEPTION ET LA REALISATION D'UN CIRCUIT INTEGRANT UN RESEAU DE RECONNAISSANCE DE CHIFFRES MANUSCRITS
Download or read book Modern Electrocardiography written by Eugene Lepeschkin and published by . This book was released on 1951 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Submarine Mass Movements and Their Consequences written by Vasilios Lykousis and published by Springer Science & Business Media. This book was released on 2007-09-14 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions from leading researchers in science and engineering, this book provides a global perspective on submarine mass movements and their consequences. Authors report on new findings from fundamental as well as site-specific studies from around the world. All studies relied on the most recent technologies, including multi-beam sonar imaging techniques, 3D seismic analysis, slope stability analysis, debris flow, and tsunami modeling.
Download or read book What Nazism Did to Psychoanalysis written by Laurence Kahn and published by Taylor & Francis. This book was released on 2022-09-09 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: What Nazism Did to Psychoanalysis explores the impact Nazism had on the evolution of psychoanalysis and tackles the enigma of the transformation of individual hate into mass psychosis and of the autocratic creation of a neo-reality. Addressing the effects of the Holocaust on the psychoanalytic world, this book does not focus on the suffering of the survivors but the analysis of the concrete mechanisms of destruction that affected language and thought, their impact on the practice of psychoanalysis and the defences that psychoanalysts tried to find against the linguistic, legal and symbolic chaos that struck the foundations of reality. Laurence Kahn discusses the struggle against the appropriation, by the Nazi language, of key terms such as demonic nature, drives, ideals and, above all, the Selbsterhaltungstrieb (the self-preservation drive), which became, with Hitler, the axis of the living space policy, the "Lebensraum". Covering key topics such as trauma, transgenerational issues, silence and secrecy and the depredation of culture, this is an essential work for psychoanalysts and anyone wishing to understand how strongly the development of psychoanalysis was affected by Nazism.
Download or read book Transformational Processes in Clinical Psychoanalysis written by Lawrence J. Brown and published by Routledge. This book was released on 2018-10-09 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, Lawrence J. Brown offers a contemporary perspective on how the mind transforms, and gives meaning to, emotional experience that arises unconsciously in the here-and-now of the clinical hour. Brown surveys the developments in theory and practice that follow from Freud’s original observations and traces this evolution from its conception to contemporary analytic field theory. Brown emphasizes that these unconscious transformational processes occur spontaneously, in the blink of an eye, through the "unconscious work" in which the analyst and patient are engaged. Though unconscious, these processes are accessible and the analyst must train himself to become aware of the subtle ways he is affected by the patient in the clinical moment. By paying attention to one’s reveries, countertransference manifestations and even supposed "wild" or extraneous thoughts, the analyst is able to obtain a glimpse of how his unconscious is transforming the ambient emotions of the session in order to formulate an interpretation. Brown casts a wide theoretical net in his exploration of these transformational processes and builds on the contributions of Freud, Theodor Reik, Bion, Ogden, the Barangers, Cassorla, Civitarese and Ferro. Bion’s theories of alpha function, transformations, dreaming and his clinical emphasis on the present moment are foundational to this book. Brown’s writing is clear and aims to describe the various theoretical ideas as plainly as possible. Detailed clinical material is given in most chapters to illustrate the theoretical perspectives. Brown applies this theory of transformational processes to a variety of topics, including the analyst’s receptivity, countertransference as transformation, the analytic setting, the paintings of J.M.W. Turner, "autistic transformations" and other clinical situations in the analysis of children and adults. Transformational Processes in Clinical Psychoanalysis will be of great interest to all psychoanalysts and psychoanalytic psychotherapists.
Download or read book The Analyst s Reveries written by Fred Busch and published by Routledge. This book was released on 2019-03-04 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: While the use of the analyst’s own reveries in work with patients has increased in recent times, there has been little critical inquiry into its value, and the problems it may lead to. The Analyst's Reveries finds increasing veneration for the analyst’s use of their reveries, while revealing important differences amongst post-Bionians in how reverie is defined and used clinically. Fred Busch ponders if it has been fully recognized that some post-Bionions suggest a new, radical paradigm for what is curative in psychoanalysis. After searching for the roots of the analyst’s use of reverie in Bion’s work and questioning whether in this regard Bion was a Bionian, Busch carefully examines the work of some post-Bionians and finds both convincing ways to think about the usefulness and limitations of the analyst’s use of reverie. He explores questions including: From what part of the mind does a reverie emerge? How does its provenance inform its transformative possibilities? Do we over-generalize in conceptualizing what is unrepresented, with the corresponding problem of false positives? Do dreams equal understanding and what about the generalizability of the co-created reverie? Busch concludes that it is primarily through the analyst’s own associations that the reverie’s potential is revealed, which further helps the analyst distinguish it from many other possibilities, including the analyst’s countertransference. He believes in the importance of converting reveries into verbal interpretations, a controversial point amongst post-Bionians. Busch ends with the difficult task of classifying the analyst’s reveries based on their degree of representation. The Analyst's Reveries will be of great interest to psychoanalysts and psychoanalytic psychotherapists.
Download or read book In the Analyst s Consulting Room written by Antonino Ferro and published by Psychology Press. This book was released on 2002 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Complements and develops Antonino Ferro's new model of the relationship between patient and analyst, by concentrating on adults.
Download or read book Psychoanalytic Studies on Dysphoria written by Marion M. Oliner and published by Routledge. This book was released on 2018-11-12 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Psychoanalytic Studies on Dysphoria: The False Accord in the Divine Symphony depicts the profound dysphoria afflicting certain individuals, and includes the author's own personal experience of this as a German Jewish child during the Holocaust. Marion M. Oliner explores the impact of catastrophic events on the lives of individuals and their descendants from a broadly psychoanalytic perspective. The book focuses on the interplay between the experience and the unconscious meaning attributed to the trauma, and the ways in which patients may feel guilt, and blame themselves for the events and effects of their trauma. Drawing on the work of Freud and Winnicott, and with emphasis on the traumas suffered during the Second World War, Oliner offers new ways of understanding how resistant to treatment such traumas can be, and how the analyst can understand the experiences. The chapters span the evolution undergone in the nearly four decades of practice by the author. The book references a range of works including some taken from the German and French psychoanalytic literature, some never published in English. Taken together they aim at keeping the vitality of psychoanalysis without idealization, while discarding concepts whose essence is static, and therefore unhelpful. Psychoanalytic Studies on Dysphoria will appeal to psychoanalysts as well as other mental health professionals working with self-defeating behavior as a result of trauma.
Download or read book Love of Beginnings written by J.-B. Pontalis and published by . This book was released on 1993 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Winner of the Prix Femina and considered a masterpiece of autobiography, this is J. B. Pontalis' lyrical meditation on his own life. One of France's pre-eminent psychoanalysts, he is co-author of the classic The Language of Psychoanalysis and he has also been a member of the editorial committee of Les Temps Modernes.
Download or read book Unrepresented States and the Construction of Meaning written by Howard B. Levine and published by Routledge. This book was released on 2018-05-01 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last several decades, the analytic field has widened considerably in scope. The therapeutic task is now seen by an increasing number of analysts to require that patient and analyst work together to strengthen, or to create, psychic structure that was previously weak, missing, or functionally inoperative. This view, which may apply to all patients, but is especially relevant to the treatment of non-neurotic patients and states of mind, stands in stark contrast to the more traditional assumption that the therapeutic task involves the uncovering of the unconscious dimension of a present pathological compromise formation that holds a potentially healthy ego in thrall. The contrast which this book calls attention to is that which exists roughly between formulations of psychic structure and functioning that were once assumed to have been sufficiently well explained by the hypotheses of Freud's topographic theory and those that were not. The former are modeled on neurosis and dream interpretation, where conflicts between relatively well-defined (saturated) and psychically represented desires were assumed to operate under the aegis of the pleasure-unpleasure principle.
