Дисертації з теми "CNRN"
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Londero, Igor. "Felice Ippolito intellettuale e grand commis - La ricerca nucleare in Italia dal dopoguerra al primo centrosinistra." Doctoral thesis, Università degli studi di Trieste, 2013. http://hdl.handle.net/10077/8618.
Повний текст джерелаLo studio della fisica nucleare in Italia ebbe il suo mito fondativo nelle vicende dei “ragazzi di via Panisperna”, dal nome della via romana in cui sorgevano i laboratori diretti da Enrico Fermi. Dopo aver raggiunto la fama mondiale (in particolare con il Nobel per la fisica di Fermi nel 1938), il gruppo fu disperso a causa della politica (sia razziale che scientifica) del regime fascista. Mentre Fermi ed altri, espatriati in America, davano il proprio determinante contributo alla realizzazione della bomba atomica, in Italia rimase il solo Edoardo Amaldi che, nel dopoguerra, si trovò ad essere, nel Paese e fuori, un fondamentale punto di riferimento per la fisica italiana. Nell’immediato dopoguerra, a fronte di un sostanziale disinteresse del Governo italiano in materia di ricerca, furono le industrie elettriche private a muovere i primi passi verso la ricerca e lo sviluppo della tecnologia nucleare, concedendo il proprio appoggio ad alcuni giovani ricercatori del Politecnico di Milano che diedero vita al CISE (Centro Informazioni Studi Esperienze). Parallelamente, la “comunità dei fisici” iniziava a ritagliarsi un proprio spazio autonomo di manovra. Nel 1951 i gruppi universitari che si occupavano di fisica fondamentale diedero vita all’Istituto Nazionale di Fisica Nucleare (INFN) mentre l'anno successivo, non senza attriti con il CISE, il Ministero dell'Industria appoggiò la creazione del Comitato Nazionale per le Ricerche Nucleari (CNRN), incaricato di promuovere e occuparsi della fisica nucleare applicata. Alla presidenza fu nominato Francesco Giordani, chimico napoletano legato all'IRI ed agli ambienti del neo meridionalismo. Il Comitato, che solo nel 1960 fu mutato in CNEN (Comitato Nazionale per l'Energia Nucleare) ottenendo la necessaria personalità giuridica, dovette costantemente far fronte alle difficoltà derivanti dalla propria fragilità istituzionale e dalle continue tensioni con l'industria elettrica privata. Ciononostante, sotto la guida del suo Segretario Generale Felice Ippolito, riuscì a dar vita ad importanti realizzazioni (come il Sincrotrone di Frascati o il Centro di ricerche nucleari di Ispra) e diede l'impulso fondamentale che portò alla costruzione, nei primi anni '60, delle prime centrali nucleari in Italia. Questo “periodo aureo” della fisica nucleare applicata iniziò a finire nell’agosto del 1963 quando una dura campagna stampa prese a mettere in discussione le gestione di Ippolito che si ritrovò al centro di un “caso” che da mediatico si fece ben presto giuridico e portò, nel marzo del 1964, all'arresto del Segretario Generale del CNEN per irregolarità amministrative. “Il caso Ippolito”, lungi dall’essere solo un processo per un isolato caso di malversazione, di fatto sancì la fine della ricerca e dello sviluppo del nucleare in Italia, facendo piazza pulita non solo dei progetti di nuove centrali atomiche, ma anche di un certo tipo di gestione degli enti pubblici che aveva fatto dell’elasticità amministrativa il proprio punto di forza, laddove in seguito si impose la burocratizzazione e la lottizzazione politica. Nella tesi in esame ho tentato di individuare, all'interno di un campo di ricerca così vario e così ricco di spunti collocati a cavallo di più discipline storiche (storia e filosofia della scienza, dell'economica e dell'industria, della cultura e della politica, delle relazioni internazionali), alcuni snodi focali ed emblematici che permettessero di sviluppare un percorso di indagine su quello che appariva come un meraviglioso tentativo di far recuperare all'Italia il tempo perduto a causa del regime fascista, in termini di sviluppo tecnologico e scientifico, ma anche culturale e politico. Tale tentativo ottenne risultati di rilievo mondiale nel dopoguerra ma andò incontro ad una nuova sconfitta, nei primi anni '60, quando emerse l'incapacità dello Stato di riformare se stesso per tener dietro ai rapidi mutamenti, non solo tecnici, che la tecnologia d'eccellenza pretende per mantenersi tale. Fin dall'inizio ho individuato in Felice Ippolito il trait d'union tra i fatti caratterizzanti le vicende trattate. Interessato alla ricerca nucleare quale geologo esperto in prospezioni minerarie, in seguito venne nominato Segretario Generale del CNRN e si trovò a rivestire un ruolo chiave, emblematico e rappresentativo, all'interno di un complesso ambiente culturale composto da intellettuali, scienziati ed alti funzionari che parteciparono ad una rete di rapporti all'interno della quale si elaborarono delle organiche strategie di sviluppo per il Paese. Ippolito divenne referente e portavoce di una comunità scientifica che si caratterizzava in quegli anni per il suo rapporto estremamente dialettico e consapevole con tutte le componenti della società, dalla classe politica al mondo dell'industria e dell'economica, dal mondo della cultura alle classi subalterne. Per comprendere l'incontro tra Ippolito e la comunità dei fisici, ho ritenuto di iniziare la tesi con un accenno all'esperienza dei “ragazzi di via Panisperna” e di Enrico Fermi, in particolare. La partenza in treno di Fermi per Stoccolma, il 6 dicembre 1938, dove avrebbe ritirato il premio Nobel prima di espatriare negli Stati Uniti (in fuga dalle leggi razziali ma soprattutto dall'incapacità del regime fascista di comprenderne e sostenerne le iniziative), è stata presentata come evento simbolico e metaforico della perdita di un primo “treno per la modernità” da parte dell'Italia. L'attenzione è stata posta soprattutto su chi rimase sulla banchina di quella stazione, ovvero Edoardo Amaldi, che pur con molti dubbi alla fine scelse di rimanere in Italia diventando il punto di riferimento per eccellenza, in virtù del suo carisma scientifico ed umano, della comunità dei fisici italiani nel dopoguerra. In particolare ho messo in evidenza il rafforzarsi in Amaldi di un punto di vista autonomo su quello che doveva essere il rapporto tra la ricerca scientifica ed il mondo della politica e dell'industria. Mentre oltreoceano Fermi delegava al Governo la valutazione etica e la gestione dei risultati del proprio lavoro scientifico, in Italia il suo allievo Amaldi fin dal dopoguerra iniziò a tessere una rete di rapporti, con l'industria e le aziende controllate dallo Stato, caratterizzati da alcuni principi imprescindibili. Quando gli industriali elettrici privati lo chiamarono al CISE, Amaldi pose perentorie condizioni alla propria partecipazione, come la difesa della sua autonomia scientifica, il rifiuto di ogni principio di segretezza, ed il fatto che la ricerca doveva andare a beneficio dell'intera collettività e non a vantaggio di pochi gruppi privati. Dopo aver delineato alcuni elementi della figura di Amaldi, ho concentrato il mio interesse su Ippolito e sui suoi rapporti con l'ambiente culturale napoletano, liberale e meridionalista, di cui anche Francesco Giordani faceva parte. Attraverso la bibliografia e gli archivi dell'ente, ho esaminato la nascita del CNRN sull'asse Ippolito-Giordani-Pietro Campilli (il Ministro dell'Industria che sostenne il progetto) e di seguito l'insorgere delle tensioni con il CISE e l'industria privata. L'obiettivo è stato di mettere in evidenza l'estrema “coerenza” dell'incontro tra i fisici rappresentati da Amaldi e la politica scientifica portata avanti da Ippolito e Giordani, capaci di soddisfarne sia le ambizioni tecnico scientifiche che etiche e politiche. Con un capitolo intermedio, su tematiche di politica nucleare internazionale, ho introdotto il tema dell'iniziatica Atoms for peace, lanciata dal Presidente americano Eisenhower, che prospettava una politica di disarmo atomico fondata sulla socializzazione della tecnologia nucleare ad uso civile. Rinunciando a proporre un inquadramento storiografico e critico complessivo, ho scelto di render conto della rappresentazione offerta da uno dei protagonisti di quegli anni, ovvero il francese Bertrand Goldschmidt, che influenzò grandemente il punto di vista di Ippolito e degli Amici del Mondo (cui Ippolito si legò) e che oggi testimonia in maniera particolarmente efficace il clima di “euforia atomica” che determinò allora fondamentali scelte di politica energetica europea. L'iniziativa Atoms for Peace diede l'occasione ad Ippolito di avviare un'intesa collaborazione con l'ambiente culturale che ruotava attorno alla rivista «Il Mondo» diretta da Mario Pannunzio e che in quel momento si presentava come la fucina, di stampo liberale radicale, dei progetti politici che portarono in seguito al Centrosinistra. Ripercorrendo le pagine della rivista ho messo in evidenza un percorso di progressiva presa di coscienza sulla questione nucleare. Se fino all'iniziativa Atoms for Peace erano considerate solo le applicazioni militari di tale tecnologia, in seguito e anche grazie all'intervento di Ippolito, il dibattito sul nucleare venne connesso alla questione della produzione energetica vista nella prospettiva della lotta contro i monopoli e per la nazionalizzazione del settore. Su questi temi centrali in quella fase politica (sulla nazionalizzazione del settore elettrico si giocò la battaglia fondamentale per il Centrosinistra), Ippolito in particolare, a metà degli anni '50, iniziò a tessere un discorso unitario tra crescente richiesta energetica, sviluppo della tecnologia nucleare e necessaria nazionalizzazione. Coerenti a questa linea iniziarono ad apparire su «Il Mondo» i “Dialoghi plutonici” di Ernesto Rossi che testimoniavano i rapporti sempre più stretti tra Ippolito e la rivista, nel contesto delle vicissitudini politiche che portarono alla nascita del Partito Radicale ed ai convegni degli Amici del Mondo “La lotta contro i monopoli” e “Atomo ed elettricità”. Usando gli atti dei convegni e analizzando i molti articoli in merito apparsi sulla rivista, ho messo in evidenza il processo che portò, a partire dalle posizioni antistataliste sempre sostenute sulle pagine di «Il Mondo» in particolare da Rossi, al definirsi della presa di posizione nazionalizzatrice espressa durante il convegno “La lotta contro i monopoli”. Del seminario “Atomo ed elettricità” ho ritenuto di particolare interesse l'identificazione operata dai relatori tra esigenze tecnico-scientifiche dell'energia nucleare e opzione nazionalizzatrice che portò ad una lettura prettamente politica delle scelte tecniche da operare in materia di filiere tecnologiche. Lettura che, come evidenzieremo, Ippolito non condividerà a favore di un approccio che preferisce le soluzioni particolari alle analisi universali. Atoms for Peace comporta un rilancio generale della politica nucleare italiana anche in termini di “gara atomica” tra ricerca e sviluppo pubblici e privati. In particolare, ho esaminato il crescente clima di ostilità tra il CNRN e l'industria privata (l'Edison in particolare) e le cause che portarono alle dimissioni di Giordani dalla Presidenza del Comitato. In un capitolo titolato “Come Mattei all'Agip” ho delineato le difficoltà istituzionali che dovette affrontare Ippolito da segretario plenipotenziario del CNRN ed il conseguente sviluppo di un modus operandi problematico che ebbe importanti conseguenze nella creazione del “caso” che sarebbe esploso. Tra le molte vicissitudini del CNRN ho seguito soprattutto il processo che portò alla costruzione delle prime centrali atomiche in Italia con particolar attenzione alla collaborazione tra CNRN e Banca Mondiale che portò alla costruzione della centrale di Garigliano e che sintetizzò istanze meridionaliste e nucleariste. Con il capitolo “Dal CNRN al CNEN” ho esaminato il percorso politico che portò alla nascita del CNEN nel contesto delle trattative per il primo Governo di Centrosinistra e della nazionalizzazione dell'energia elettrica. L'obiettivo è stato in particolare mettere in evidenza le tensioni che andarono delineandosi all'interno del nuovo ente elettrico, l'ENEL, tra le posizioni rappresentate dal Direttore Generale Angelini ed il consigliere Ippolito. Negli ultimi due capitoli ho riassunto in modo antologico l'aspetto più ampiamente trattato dalla storiografia esistente sul tema, ovvero il “caso” mediatico e giuridico che prese il nome del Segretario Generale del CNEN e che portò alla sua incarcerazione. Oltre alla fase processuale, ho ricostruito il quadro politico e gli avvenimenti che portarono alla messa in stato di accusa di Ippolito, nell'estate del 1963, ed alla sua incarcerazione l'anno successivo, che ebbero come diretta conseguenza il drastico ridimensionamento dei programmi nucleari del CNEN. Infine ho proposto un'analisi delle ipotesi interpretative date al “caso Ippolito” evidenziando anche alcuni aspetti che, per varie ragioni, non sono stati ancora indagati. In ultima analisi il presente studio tenta di mettere in luce la complessità della materia trattata che, pur prestandosi per molte ragioni alle semplificazioni complottistiche e dietrologiche di stampo giornalistico, risulta incomprensibile senza una contestualizzazione capace di connettere il percorso della fisica nucleare italiana (che a partire dall'esperienza dei “ragazzi di via Panisperna” tende a pensarsi e muoversi come una “comunità” portatrice di propri interessi e ideali), il dibattito filosofico, culturale e tecnico sulle ragioni e sui mezzi dell'intervento dello Stato nell'economia e sul ruolo di intellettuali e scienziati nella società, ed infine la storia politica italiana, europea ed internazionale che portò alla nascita del Centrosinistra.
XXIV Ciclo
1975
Carpani, Valerio. "CNN-based video analytics." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.
Знайти повний текст джерелаSilva, Rosiane Aparecida da. ""Dosimetria de filtros dinâmicos aprimorados IPEN/CNEN-SP"." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-08012007-195253/.
Повний текст джерелаThe purpose of this work was to accomplish the dosimetry of Enhanced Dynamic Wedge (EDW). It was carried out with two intents: 1) the evaluation of the clinical implementation of the EDW considering its advantages and disadvantages, and 2) the comparison among the efficiency and the better applicability of three different dosimetric systems in a set with the EDW. The dosimetric systems used were: the Beam Image System (BIS2G), from Scanditronix-Wellhöfer, a cylindrical ionization chamber of 0.6 cm3, type Farmer, and an ionization chamber linear detector array, composed by 23 cylindrical ionization chamber of 0.14 cm3, type Farmer. With the BIS2G was possible to plot graphs of fluence that allowed to analyze the symmetry of the graphs of fluence, linearity of the dose, dose rate effect, and gravity effect, features directly connected to the quality of the working of the EDW, further on having been possible to calculate the wedge factor for symmetric fields. With the ionization chamber it was measured the PDP and it was calculated the wedge factor for symmetric and asymmetric fields (one advantage of EDW). With the array it was possible to plot graphs of isodosis that allowed the checking of the symmetry and the comparison with the results obtained with the BIS2G, besides the calculation of the wedge factor for symmetric fields. The wedge factors obtained from the measurements of the three systems were also compared with the results of the formalisms, of Gibbons1 and of Klein et al 2, both well known if the literature, and that were used to validate the results and the work. From these comparisons was verified that the angles of the EDW that show more difference between the results and the formalisms were the 46º and 60º angles related to the method of Klein et al, which show differences of 2.12% related to BIS2G, 1.92% related to the ionization chamber, and 1.10% related to ionization chamber linear detector array.
Lara, Teodoro. "Controllability and applications of CNN." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/28921.
Повний текст джерелаSamal, Kruttidipta. "FPGA acceleration of CNN training." Thesis, Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54467.
Повний текст джерелаCowie, Philip David. "Analysis of the effects of disease-associated variation within a cis-regulatory element of the CNR1 locus on CNR1 promoter dynamics." Thesis, University of Aberdeen, 2014. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=225652.
Повний текст джерелаDíaz, Leal Gabriela. "CNR centro náutico recreativo Río Claro." Tesis, Universidad de Chile, 2015. http://repositorio.uchile.cl/handle/2250/141677.
Повний текст джерелаLEMEE, RIWANON. "Systeme autolytique de propionibacterium freudenreichii cnrz 725 bacterie propionique laitiere." Rennes 1, 1994. http://www.theses.fr/1994REN10198.
Повний текст джерелаRossetto, Andrea. "CNN per view synthesis da mappe depth." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/16570/.
Повний текст джерелаCastelli, Filippo Maria. "3D CNN methods in biomedical image segmentation." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18796/.
Повний текст джерелаRingenson, Josefin. "Efficiency of CNN on Heterogeneous Processing Devices." Thesis, Linköpings universitet, Programvara och system, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-155034.
Повний текст джерелаRodrigues, Demerval Leônidas. "Impacto radiológico devido ao transporte de radiofármacos do Ipen -Cnen/SP." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-25082009-131536/.
Повний текст джерелаWhen a package is shipped, people who work, live or travel in the route used for transportation of radioactive materials are irradiated, as well as those who are inside vehicles that travel in the same or opposite directions. Therefore, the proposed work has as main objective to estimate the radiological impact of the transportation of radiopharmaceuticals of IPENCNEN/ SP to some predefined destinations. The doses in individuals who are in the public streets and in vehicles that travel close to the means of transportation, along the route traveled by packages, during the transport of radiopharmaceuticals were estimated. The doses were also estimated for drivers, from both the operation of driving the vehicle, and the loading and unloading of packages, becouse these tasks are performed by the drivers.
RODRIGUES, DEMERVAL L. "Impacto radiologico devido ao transporte de radiofarmacos do IPEN-CNEN/SP." reponame:Repositório Institucional do IPEN, 2009. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9397.
Повний текст джерелаMade available in DSpace on 2014-10-09T14:04:25Z (GMT). No. of bitstreams: 0
Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
Rul, Françoise. "Contribution a l'etude du systeme peptidasique de streptococcus thermophilus cnrz 302." Caen, 1994. http://www.theses.fr/1994CAEN2022.
Повний текст джерелаKristin, Hallberg. "Islam, BBC och CNN : Palestinska inbördeskriget 2006-2007." Thesis, Uppsala universitet, Teologiska institutionen, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-295888.
Повний текст джерелаBark, Filip. "Embedded Implementation of Lane Keeping Functionality Using CNN." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230193.
Повний текст джерелаPå senare tid så har intresset angående självkörande bilar ökat. Detta har lett till att många företag och forskare har börjat jobbat på sina egna lösningar till den myriad av problem som upstår när en bil behöver ta komplicerade beslut på egen hand. Detta projekt undersöker möjligheten att lämna så många av dessa beslut som möjligt till en enda sensor och processor. I detta fall så blir det en Raspberry Pi (RPI) och en kamera som sätts på en radiostyrd bil och skall följa en väg. För att implementera detta så används bildbehandling, eller mer specifikt, convolutional neural networks (CNN) från maskininlärning för att styra bilen med en enda kamera. Det utvecklade nätverket är designat och implementerat med ett bibliotek för maskininlärning i Python som kallas för Keras. Nätverkets design är baserat på det berömda Lenet men den har skalats ner för att öka prestandan och minska storleken som nätverket tar men fortfarande uppnå en anständing träffsäkerhet. Nätverket körs på RPIn, vilken i sin tur är fastsatt på en radiostyrd bil tillsammans med kameran. Kablar har kopplats och blivit lödda mellan RPIn och handkontrollen till radiostyrda bilen så att RPIn kan styra bilen. Själva styrningen lämnats åt en simpel "Bang Bang controller". Utvärdering av nätvärket och prototypen utfördes löpande under projektets gång, enhetstester gjordes enligt glasboxmetoden för att testa och verifiera olika delar av koden. Större experiment gjordes för att säkerställa att nätverket presterar som förväntat i olika situationer. Det slutgiltiga experimentet fastställde att nätverket uppfyller en acceptabel träffsäkerhet och kan styra prototypen utan problem när denne följer olika vägar samt att den kan stanna i de fall den behöver. Detta visar att trots den begränsade storleken på nätverket så kunde det styra en bil baserat på datan från endast en sensor. Detta var dessutom möjligt när man körde nätverket på en liten och svag dator som en RPI, detta visar att CNN var kraftfulla nog i det här fallet.
Fernandez, Brillet Lucas. "Réseaux de neurones CNN pour la vision embarquée." Thesis, Université Grenoble Alpes, 2020. http://www.theses.fr/2020GRALM043.
Повний текст джерелаRecently, Convolutional Neural Networks have become the state-of-the-art soluion(SOA) to most computer vision problems. In order to achieve high accuracy rates, CNNs require a high parameter count, as well as a high number of operations. This greatly complicates the deployment of such solutions in embedded systems, which strive to reduce memory size. Indeed, while most embedded systems are typically in the range of a few KBytes of memory, CNN models from the SOA usually account for multiple MBytes, or even GBytes in model size. Throughout this thesis, multiple novel ideas allowing to ease this issue are proposed. This requires to jointly design the solution across three main axes: Application, Algorithm and Hardware.In this manuscript, the main levers allowing to tailor computational complexity of a generic CNN-based object detector are identified and studied. Since object detection requires scanning every possible location and scale across an image through a fixed-input CNN classifier, the number of operations quickly grows for high-resolution images. In order to perform object detection in an efficient way, the detection process is divided into two stages. The first stage involves a region proposal network which allows to trade-off recall for the number of operations required to perform the search, as well as the number of regions passed on to the next stage. Techniques such as bounding box regression also greatly help reduce the dimension of the search space. This in turn simplifies the second stage, since it allows to reduce the task’s complexity to the set of possible proposals. Therefore, parameter counts can greatly be reduced.Furthermore, CNNs also exhibit properties that confirm their over-dimensionment. This over-dimensionement is one of the key success factors of CNNs in practice, since it eases the optimization process by allowing a large set of equivalent solutions. However, this also greatly increases computational complexity, and therefore complicates deploying the inference stage of these algorithms on embedded systems. In order to ease this problem, we propose a CNN compression method which is based on Principal Component Analysis (PCA). PCA allows to find, for each layer of the network independently, a new representation of the set of learned filters by expressing them in a more appropriate PCA basis. This PCA basis is hierarchical, meaning that basis terms are ordered by importance, and by removing the least important basis terms, it is possible to optimally trade-off approximation error for parameter count. Through this method, it is possible to compress, for example, a ResNet-32 network by a factor of ×2 both in the number of parameters and operations with a loss of accuracy <2%. It is also shown that the proposed method is compatible with other SOA methods which exploit other CNN properties in order to reduce computational complexity, mainly pruning, winograd and quantization. Through this method, we have been able to reduce the size of a ResNet-110 from 6.88Mbytes to 370kbytes, i.e. a x19 memory gain with a 3.9 % accuracy loss.All this knowledge, is applied in order to achieve an efficient CNN-based solution for a consumer face detection scenario. The proposed solution consists of just 29.3kBytes model size. This is x65 smaller than other SOA CNN face detectors, while providing equal detection performance and lower number of operations. Our face detector is also compared to a more traditional Viola-Jones face detector, exhibiting approximately an order of magnitude faster computation, as well as the ability to scale to higher detection rates by slightly increasing computational complexity.Both networks are finally implemented in a custom embedded multiprocessor, verifying that theorical and measured gains from PCA are consistent. Furthermore, parallelizing the PCA compressed network over 8 PEs achieves a x11.68 speed-up with respect to the original network running on a single PE
Lind, Johan. "Evaluating CNN-based models for unsupervised image denoising." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-176092.
Повний текст джерелаSöderström, Douglas. "Comparing pre-trained CNN models on agricultural machines." Thesis, Umeå universitet, Institutionen för fysik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-185333.
Повний текст джерелаNicoll, Gemma Mhairi. "A functional analysis of regulatory regions and polymorphisms surrounding the CNR1 locus." Thesis, University of Aberdeen, 2011. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=186094.
Повний текст джерелаNOGUEIRA, TINDYUA DE MORAES. "COMMUNICATION AND MEANING CONSTRUCTION IN PLANNED ORGANIZATIONAL CHANGES: THE CNEN CASE STUDY." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2009. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=15472@1.
Повний текст джерелаA lot of researchers and managers have been trying to find the factors that affect the success of organizational change processes. One of the most mentioned factors in literature about this theme is the resistance to change on the part of some organizational actors, in special the ones belonging to the lower hierarchical levels. How these individuals realize themselves and the other in organizational change processes? How they realize the content and management of the change? What is the role of communication in a change context? This work aims to contribute to the comprehension of the communication role in the meaning construction for individuals and groups in planned organizational changes, as well as to understand its relationship with behavior aspects presented for them. For this purpose, it was conducted a longitudinal case study in a public federal organization that is performing an organizational change in the Technology of Information area: implantation of an electronic management system of documents and workflow. The research methodology was based on methods triangulation that comprehended the analysis of official organizational documents, application of questionnaires and semi-structured interviews to the employers in two different moments, and researcher participant observation by means of Action Research (THIOLLENT, 1997 and 2005) due to the high level of relationship between the researcher and the change project. The results showed that the organizational change is sensible to relational and temporal aspects and that human action and behavior in organizations should be thought as the results of communication as determinant to the meaning construction and social identity. The results also present some questionings about the conflicts experienced by middle managers in a change context and point to the necessity of realizing the fact that middle managers are change agents but they are also human beings.
Siqueira, Patricia Mára de. "Implantação do novo protocolo de dosimetria da AIEA no LCI/IPEN/CNEN." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-27032012-084827/.
Повний текст джерелаIn order to implement the new IAEA code of practice in Brazil the national calibration laboratories, the Laboratory of Instrument Calibration (LCI/IPEN) is calibrating clinical dosimeters in terms of both air kerma and absorbed dose to water in a 60Co gamma ray beam. The ND,w/NK ratios thus obtained are then compared with the literature values; a satisfactory agreement has been found. The differences between the CK values obtained in the present work and the literature values may be due to several components. These could be the chamber-to-chamber variations which may be subject to different estimated uncertainties by PSDLs, and the variations in the standards used by each National Metrology Institute (NMI) or Dosimetry Laboratory. However, since the ratio of both air kerma and absorbed dose to water standards for each NMI to those of the BIPM are known, it is possible to reduce the measured ratios to the expected BIPM equivalent ratios. All these CK results have been converted to the BIPM equivalent values to facilitate comparison. The use of the CK value as a and quality control parameter to verify the results of the routine calibrations is discussed in this work. The long term stability of wich standard ionization chamber was checked in order to evaluate the calibration procedures followed at LCI. Moreover, a database was created to store the calibration data aiming the quality improvement of the calibration procedure.
SIQUEIRA, PATRICIA M. de. "Implantação do novo protocolo de dosimetria da AIEA no LCI/IPEN/CNEN." reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11454.
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Dissertação (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
MATSUDA, HYLTON. "Monitoracao do feixe externo do ciclotron cyclone 30 do IPEN-CNEN/SP." reponame:Repositório Institucional do IPEN, 2002. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10995.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
Thibaut, Eric. "Transfert de technologie : cas du CNRS : structure de la pensée créatrice autonome." Strasbourg, 2010. https://publication-theses.unistra.fr/public/theses_doctorat/2010/THIBAUT_Eric_2010.pdf.
Повний текст джерелаThis thesis a been performed at CNRS (Centre National de la Recherche Scientifique) in Directorate of Industrial Policy. If we take in consideration the economic theories on growth and innovation, the "new" politics and innovation of the French national system of innovation and the concept of "Open Science", the Technology Transfer Office (TTO) of the fundamental academic research struggle to find its place. This work offers to adjust the paradigm of the "inefficience" of the academic technology transfer by bringing out the endogenous and exogenous causes of the problematic of the "valorisation" of public research. We describe a real « Paradox ofValorisation and Innovation » by focusing on two fundamental facts of the difficulty of the academic technology transfer: the structure of knowledge and the proccss of creation (genesis) of the inventions. These empirical, quantitative and qualifying results claim for anothcr vision of the public technology transfer. This model constitutes an approach of "Quantic Vectorisation" of the transfer of technology. It is inspired by the theory of construction of the "La Pensée Vivante" ("Living Thought" - Rohrbach -1993) and by the "L'Esprit Scientifique" ("Scientific Spirit" - Bachelard -1961) on the way of construction of the thinking: made by "La Pensée Mémoire" (Memory Thinking), "La Pensée Inventive" (Inventive Thinking), "La Pensée Réflective" (Reflective Thinking) and "La Pensée Créatrice" (Creative Thinking). It is also inspired by the "Knowledge Management" (Nonaka -1994 and Prax -2001) and it allows us to propose elements to understand the process of the genesis of the invention
Gustafsson, Magnus, and Niclas Hagel. "Al-Jazeera och CNN - En jämförande fallstudie i krigsjournalistik." Thesis, Halmstad University, School of Social and Health Sciences (HOS), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-2234.
Повний текст джерелаFörfattare: Magnus Gustafsson Niclas Hagel
Handledare: Thomas Knoll
Examinator: Martin Danielsson
Titel: Al-Jazeera och CNN - En jämförande fallstudie i krigsjournalistik
Typ av rapport: C - uppsats
Ämne: Medie- och Kommunikationsvetenskap
År: Höstterminen 2008
Sektion: Sektionen för Hälsa och Samhälle
Syfte: Vårt syfte är att studera och jämföra al-Jazeeras och CNN:s
bevakning av en händelse i Afghanistankonflikten för att kunna
redogöra för eventuella skillnader. Vi vill se hur olika faktorer
påverkar journalistiken. En analys ur ett genusperspektiv
kommer också att göras.
Metod: Fallstudie har tillämpats som huvudsaklig metod och vid analys
av material har innehållsanalys och kritisk diskursanalys använts.
Slutsatser: Efter att ha jämfört de två nyhetskanalerna kan vi tydligt se att
det finns stora skillnader i rapporteringen av ett amerikanskt
flyganfall mot en afghansk by. CNN som amerikansk
nyhetskanal visar att deras rapportering påverkas av det
amerikanska medieklimatet där en neutral krigsrapportering kan
ses som stötande och journalister ständigt utsätts för
påtryckningar. Ur ett genusperspektiv ser vi dock tydliga
likheter mellan kanalerna.
Berg, Albin. "Jämförelse av CNN modeller för objektidentifiering och automatisk markering." Thesis, Högskolan i Skövde, Institutionen för informationsteknologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-18637.
Повний текст джерелаEl, Ahmar Wassim. "Head and Shoulder Detection using CNN and RGBD Data." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/39448.
Повний текст джерелаSophocleous, Antonia. "Role of type 2 cannabinoid receptor in bone metabolism." Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/5940.
Повний текст джерелаAntonini, Marc. "Compression des images et des vidéos numériques : dix années de recherches au CNRS." Habilitation à diriger des recherches, Université de Nice Sophia-Antipolis, 2003. http://tel.archives-ouvertes.fr/tel-00473186.
Повний текст джерелаSchoueri, Roberto Mauro. "Projeto e implementação do equipamento para tomografia com nêutrons do IPEN-CNEN/SP." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-06052016-074255/.
Повний текст джерелаIn the work reported in this dissertation, a facility for neutron tomography was developed and installed at the irradiation channel #14 of the IEA-R1 nuclear research reactor of IPEN-CNEN/SP. Several selected objects were inspected, and the obtained images demonstrate the main characteristic of the present technique that is its capability to visualize hydrogenous rich substances. In such facility, a tomography can be obtained in 400 s with a spatial resolution of 205 μm, and the obtained images have sufficient quality to allow qualitative and quantitative analysis. These characteristics are very similar to the ones of the top facilities around the world, and the quality of the provided images are sufficient to allow qualitative and quantitative analysis of the inspected object. The implementation of the neutron tomography technique opens up the possibility of new research as it provides a new tool for inspection of objects, which provides a view of its internal structure, which is not always possible for two-dimensional imaging methods.
LEONARDO, LUCIO. "Determinacao de tricio e estroncio-90 no controle radiologico do IPEN-CNEN/SP." reponame:Repositório Institucional do IPEN, 2004. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11171.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
SCHOUERI, ROBERTO M. "Projeto e implementação do equipamento para tomografia com nêutrons do IPEN-CNEN/SP." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/26383.
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Dissertação (Mestrado em Tecnologia Nuclear)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
Xavier, Roberto Salles. "Modelagem organizacional da Comissão Nacional de Energia Nuclear (CNEN): da crítica à esperança." reponame:Repositório Institucional do FGV, 2007. http://hdl.handle.net/10438/3578.
Повний текст джерелаThis research had the objective to verify if the current organization design of the Comissão Nacional de Energia Nuclear (CNEN) facilitates or makes it difficult the reach of the organization performance. In order to make the analysis, the used ways had been bibliographic, documental and field researches. The bibliographical survey allowed to conclude that it has a necessity of searching a balance between the objectivist and subjectivist approaches of the theory of the organization design. The documental survey supplied elements that they make possible to understand the main phases of the development of the CNEN in elapsing of the time and that they explain the current organization design. Finally, the research of field, carried through with the main managers of the institution, made possible the data-collecting that contributed to ratify the initial assumption of the research of that the current organization design of the CNEN makes it difficult the performance of the organization.
Esta pesquisa teve por objetivo verificar se a atual modelagem organizacional da Comissão Nacional de Energia Nuclear (CNEN) facilita ou dificulta o alcance do desempenho organizacional. Para possibilitar a análise, os meios utilizados foram as pesquisas bibliográfica, documental e de campo. O levantamento bibliográfico permitiu concluir que há uma necessidade de se buscar um equilíbrio entre as vertentes objetivista e subjetivista da teoria da modelagem organizacional. A pesquisa documental forneceu elementos que possibilitaram compreender as fases principais do desenvolvimento da CNEN no decorrer do tempo e que explicam a atual modelagem organizacional. Por fim, a pesquisa de campo, realizada com os principais gerentes da instituição, possibilitou o levantamento de dados que contribuiu para ratificar a suposição inicial da pesquisa de que a atual modelagem organizacional da CNEN dificulta o desempenho da organização.
Grogan, Andree Marie. "Observations on the news factory a case study of CNN /." restricted, 2005. http://etd.gsu.edu/theses/available/etd-11172005-173426/.
Повний текст джерелаTitle from title screen. Merrill Morris, committee chair; Marian Meyers, Douglas Barthlow, committee members. Electronic text (98 p.) : digital, PDF file. Description based on contents viewed June 21, 2007. Includes bibliographical references (p. 89-96).
Grogan, Andree Marie. "Observations on the News Factory: A Case Study of CNN." Digital Archive @ GSU, 2006. http://digitalarchive.gsu.edu/communication_theses/6.
Повний текст джерелаHiselius, Leo. "Igenkänning av musikalisk genre med CNN-nätverk och transfer learning." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254764.
Повний текст джерелаThis project studies the effects of transfer learning on music information retrieval tasks of CNN-based audio data representations. Several neural networks are fed melspectrogram matrices and trained with random initial weights on three different classification tasks including ’genre’, ’region’ and ’year’ and classification performance is measured, after which transfer learning is utilized and classification performance is measured again. F1-score for individual classes within the different tasks is also measured. Comparing the results shows that transfer learning is applicable in this task domain.
Pereira, Tiago Manuel Encarnação. "Aquisição e deteção de sinais de baixa CNR por software." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/16417.
Повний текст джерелаO presente trabalho propõe-se implementar duas ferramentas em software, um deles para aquisição e processamento de um sinal de satélite a 20GHz e canais meteorológicos, o outro para processamento de um sinal de satélite a 40GHz. Em primeiro lugar desenvolveu-se o software que recebe o sinal de 40GHz, denominado detetor digital, em MATLAB. A aquisição dos dados é feita com base num recetor de rádio digital, o processamento dos dados é feito através de deteção espetral (FFTs) e uma malha de sincronização de fase (PLL). A par da aquisição de dados é feito também um apontamento periódico da antena de receção. Todos os dados processados são guardados em ficheiros de saída devidamente estruturados e datados. De seguida desenvolveu-se o software de aquisição e processamento do sinal de satélite a 20GHz, denominado software de aquisição, em LabVIEW. Neste caso, a aquisição do sinal de satélite é feita através de um recetor superheteródino que converte o sinal para a banda de áudio, sinal que depois é digitalizado através de uma placa de aquisição de dados. Os canais meteorológicos são também digitalizados na mesma placa. O software de aquisição recebe os dados provenientes da placa de aquisição e, para fazer o processamento do sinal utiliza deteção espetral (FFTs), para fazer o processamento dos dados meteorológicos, usa apenas médias reduzir a taxa de amostragem. Todos os dados processados são guardados em ficheiros de saída devidamente estruturados e datados. Finalmente, são analisados alguns resultados obtidos pelo detetor digital, por forma a comparar o desempenho dos métodos de deteção.
The aim of this thesis is to implement two software tools: one of them is to acquire and process a satellite beacon signal at 20GHz alongside with some meteorological channels, the other is to process a satellite beacon signal at 40GHz. The first one, developed in MATLAB, is the software for the 40GHz beacon, named Digital Detector. The data acquisition is done with a Software Digital Radio (SDR) receiver, the data processing is done through spectral detection (FFTs) and a phase locked-loop (PLL). In parallel with data acquisition, the digital detector is capable of, periodically, control the antenna pointing system. All processed data is stored in output files properly structured and dated. The next step was the development, in LabVIEW, of the acquisition and processing software for the 20GHz beacon, named acquisition software. In this case, the acquisition of the satellite signal is made using a superheterodyne receiver which converts the signal to the audio band; the signal is then digitized by a data acquisition board. The weather channels are also scanned on the same board. The acquisition software receives data from the acquisition card and uses spectral detection (FFTs) to detect the signal. Regarding the processing of meteorological data, it displays only averages to control the data rate. All processed data is stored in output files properly structured and dated. Finally, some results obtained with the digital detector are analyzed in order to compare the performance of both detection methods implemented.
Tang, Yitai. "Characterization of CnrN-mediated size regulation in Dictyostelium." Thesis, 2008. http://hdl.handle.net/1911/22286.
Повний текст джерелаZabouri, Nawal. "Caractérisation du système des endocannabinoïdes au niveau de la rétine adulte et en développement." Thèse, 2011. http://hdl.handle.net/1866/5409.
Повний текст джерелаThe endocannabinoid (eCBs) system is composed of the ligands, the receptors - the most studied are CB1R and CB2R – and the synthesizing and degradative enzymes. The lipophilic ligands are not stored in vesicles, thereby placing the synthesizing and degradative enzymes as key regulators of the receptor function. The eCB system is thought to participate to developmental processes in the central nervous system (CNS). The rodent retina is a valuable model to study CNS development, as it contains well identified cell types with established developmental timelines. Very little is known about the distribution of this neuromodulationsystem in the developing retina. In this thesis, the expression patterns of CB1R and eCB degradative enzyme FAAH were investigated in the rat retina during postnatal development. To identify the cells expressing these proteins, co-stainings were carried out for CB1R or FAAH and retinal cell type markers. At P1, CB1R was expressed in ganglion, amacrine, horizontal and mitotic cells, whereas FAAH was present in ganglion and cholinergic amacrine cells. In the course of development, both CB1R and FAAH were transiently expressed in some cell type, suggesting a role of the eCB system in developmental processes. Furthermore, our data demonstrated an important expression of both proteins in adult animals, supporting the hypothesis that the eCB system is involved in retinal functions. Briefly, functional in vitro studies on non-mammalian retinae have revealed an effect of CB1R on cone photoreceptors and bipolar cells response. Despite the recent demonstration of CB2R mRNA and protein presence in the retina, there are no data on CB2R functional role in retina have been published. In this thesis, the consequences of removing either CB1R or CB2R from the retina of transgenic mice were evaluated. Retinal response was recorded by electroretinogram in cnr1-/- (CB1R-KO) and cnr2-/- (CB2R-KO) mice. This data suggests that both receptors are involved in shaping the retinal response to light and they have different roles in this process.
Lee, Yi-Jou, and 李依柔. "A Reconfigurable CNN Accelerator Design." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/15122663000772368149.
Повний текст джерела國立臺灣大學
資訊工程學研究所
105
With the large size of the convolutional neural network (CNN), performance and energy efficiency of CNN accelerator become an important problem. From previous works, we can find that DRAM accesses took a large part in energy consumption. To reduce DRAM accesses, we observe the computation behavior of convolutional layer, and many parameters are shared between computation. Those data may be loaded on-chip repeatedly with the limitation of on-chip buffer size in an accelerator. We would like to capture data reuse via the on-chip buffer to reduce DRAM accesses of CNN computation. There are three kinds of data reuse can be captured, and those data will be kept by on-chip buffer and be evicted when not needed. The first kind of data reuse is input feature map reuse, the next is filter reuse and the other is intermediate feature map reuse. Each layer in a CNN model may favor different data reuse policy based on the size of its input, output, and filters. But existing CNN accelerators only focus on one type of data reuse through CNN processing. To have flexibility using different data reuse policy for each layer in CNN processing, we would like to propose a reconfigurable CNN accelerator design, which can be configured to capture different types of reuse with the objective of minimizing off-chip memory accesses. With separating the CNN processing into several computation primitives which are units of convolution with different inputs and filters, we can reuse different data by arranging the computation ordering of those computation primitives in our accelerator. And our accelerator will execute based on the instructions generated by off-line generator considering the optimal reuse policy and hardware constraints. Our work shows that with our reconfigurable design, DRAM accesses can be reduced, and compare the execution time and the energy when using different data reuse policy. We also analyze the effect of the different configuration in our CNN accelerator design.
Lopez, Paola Denisse Gomez, and 鮑樂. "Face Keypoint Recognition with CNN." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/87259949052618555601.
Повний текст джерела元智大學
通訊工程學系
104
Purpose This is an attempt to unravel the problem of human face keypoints recognition. In the new area of machine learning research called deep learning. Different approaches to this problem were evaluated and proposed one system to implement using python libraries for computational skills. Methodology Face keypoints detection was achieved by using a template algorithm. Using GPU instances and convolutional networks consisting of multiple levels. The key idea is to pre-train models in completely unsupervised way and finally they can be fine-tuned for the task at hand using supervised learning using Nesterov Gradient Algorithm to create the perceptron units. Manual detection was used to test implemented face keypoints recognition system. Findings Successful results were obtained for automated face keypoints recognition under robust and controlled conditions. The experimental results show that the model provides better results than publicly available benchmarks for the dataset. Originality/Value Discuss different machine learning techniques used for face keypoints detection and provide a description why most algorithms are based in neural networks. Keywords Convolution Neural network, face keypoints recognition.
CHEN, CHUN-LIN, and 陳俊霖. "CNN-based identity recognition system." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/drtnp8.
Повний текст джерела國立中央大學
資訊管理學系在職專班
107
This paper proposes a set of "CNN-based identity recognition system" for identity recognition using a computer vision library OpenCV and deep learning technology and webcam. It is expected to be applied to access control and regional security. Monitoring, advertising, or other related systems that need to be enhanced by confirming their identity. This thesis is based on Python and TensorFlow's built-in GoogLeNet CNN model. Supervised learning is used to obtain facial image features and classified by identity. This paper uses self-organizing face image data and compares GoogLeNet. The identification rate of the three versions of the model, in the neural network architecture with the highest recognition rate in the experiment, can increase the recognition rate by adding the residual network experiment. Using the neural network model of the above-mentioned best recognition rate, the OpenCV is used to load the movie to instantly recognize the character in the film to verify the practicability of the neural network model of the research training. In the verification part of the results, the paper has self-organized 14 public figures, and each public figure has at least 130 face images as training and test and verification samples, among which the best recognition rate of the neural network is in 1260 images. The recognition rate of the training sample is 100%, and the image recognition rate of the 450 images is 99.11%. The time of the instant image recognition from the face image in the film to the completion identity is about 0.1 second.
Chen, Zih-Jie, and 陳子傑. "CNN-based Gaze Block Estimation." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/3mzyzg.
Повний текст джерела國立中央大學
資訊工程學系
107
The visual is one of the most important senses that a human receives outside information. The visual helps us explore the world, receive new knowledge, and communicate with computer. As contactless human-computer interaction (HCI) model continues to develop, the technology of communicating with gaze behavior has become a highlight in this field. There have been many applications in the fields of education, advertising, nursing, entertainment or virtual reality. In general, most of the eye tracking devices need calibration in advance or fixing head. There are still many restrictions on usage specification. To solve the above problems, this study uses the ResNet model as the core of classification to construct Gaze Block Estimation Model (GBE Model). It can estimate the gaze block of the user without calibration process. Moreover, only an RGB camera device without depth information is used to capture the image, such as a webcam, a built-in camera on a laptop, or front-facing camera of a smartphone. The deep learning approach is data-driven. It needs a large amount of correctly labeled training data to train a stable and compliant model. However, the existing public dataset of visual behavior has different application scenarios. Resulting in images of the dataset does not apply to all application domains. Therefore, this study collects and builds up to a dataset of eye images of up to 300000 images. According to the experimental results, the GBE Model can estimate gaze block of the user without calibration process and allow the head moving. Even in the real-life testing, it can reach 85.1% accuracy. The experimental results prove the proposed method can let user use gaze block to control the screen, and achieve the goal of HCI application scenario.
Nowakowski, Christine M. "Cloning of peptidase genes from Lactobacillus helveticus CNRZ 32." 1992. http://catalog.hathitrust.org/api/volumes/oclc/25778302.html.
Повний текст джерелаRebelo, José Soares. "CNN-Based Refinement for Image Segmentation." Master's thesis, 2018. https://repositorio-aberto.up.pt/handle/10216/114115.
Повний текст джерелаLIAO, PEN-MIN, and 廖本閔. "Streamflow Forecasting by CNN-GRU Model." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/8rs76r.
Повний текст джерела逢甲大學
水利工程與資源保育學系
107
During the last two decades, the application of artificial intelligence in the field of flood forecasting has increased noticeably. Since the information of flood forecasting is the most important part of disaster management, also the emergency response and the mechanism of Recurrent Neural Network (RNN) include the behavior of the time series, this study attempt to adopt the Gated Recurrent Unit (GRU) which is a type of RNN used to develop a rainfall-runoff model for the mentioned purpose above. In this research RNN is using Gated Recurrent Unit (GRU). In each field, applicability of GRU is still in researching. Thereby, this paper will discuss the application GRU in the flood forecast. In order to improve the prediction accuracy of the GRU, the data is processed by using the Convolutional Neural Network (CNN) and then input into the GRU for prediction, called CNN-GRU. In the past, most studies used to extract every rainfall from the data before learning artificial neural networks for flood flow prediction. However this study will use a different approach, because GRU cell can remember the status from past. In addition, optimal hyperparameters setting for artificial neural networks will be found by genetic algorithm (GA) to modeling Dali River hourly rainfall-runoff model. Evaluation indicators show that CNN-GRU is better than GRU, the evaluation indicators show that CNN-GRU is better than GRU, because CNN-GRU uses CNN to extract eigenvalues from input data before using GRU for prediction.
Rebelo, José Soares. "CNN-Based Refinement for Image Segmentation." Dissertação, 2018. https://repositorio-aberto.up.pt/handle/10216/114115.
Повний текст джерелаChen, Shih-Che, and 陳釋澈. "Mandarin Tone Classification Using CNN/DNN." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/6ptt3a.
Повний текст джерела國立臺灣大學
資訊工程學研究所
106
In Mandarin Chinese system, the tone plays an important role. Different tone patterns of the same syllable may result in different meanings. People whose native language aren’t Mandarin can be distinguished by their tone patterns. Therefore, we propose a method for tone classification. First, we convert the audio signal into the spectrogram. We treat the spectrogram as images, apply them as the image inputs for image recognition convolutional neural networks, and create tone classification models. We compare different image recognition models for tone classification. This approach can achieve good accuracy without too many processes on the audio signal. The tone classification architecture can be applied to Chinese teaching methods which will lead to educational success.
Yang, Hsin-Wei, and 楊馨媁. "CNN-based Handwritten Invoice Recognition System." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/c5zem6.
Повний текст джерела國立臺灣海洋大學
資訊工程學系
107
This paper proposes a method that uses deep learning and convolution neural network (CNN) for handwritten invoice recognition, this method can help enterprises solve that enterprises use only handwritten invoices and reduce labor costs of sorting invoices. Invoice recognition contains invoice number, buyer's government uniform invoice number, seller's government uniform invoice number, digital total amount, and Chinese total amount. Models train by different content, analyze and calculate the best results based on the labels, coordinates and scores of the model detection results. Besides, total amount result use digital total amount and Chinese total amount to correct, which increase 3% accuracy of total amount. The experiment use about 500 labeled invoices to train models, use models to recognize that randomly selected 1000 invoices, according to research results, the overall recognition accuracy over 95%.