Literatura científica selecionada sobre o tema "Alignement temporal"
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Artigos de revistas sobre o assunto "Alignement temporal"
Lacassain, Christelle, e Caroline Marty. "Énoncés capacitifs et constructions à sujet locatif : quel alignement syntaxe-sémantique ?" Linguistique anglaise 36 (2023). http://dx.doi.org/10.4000/11qbj.
Texto completo da fonteTeses / dissertações sobre o assunto "Alignement temporal"
Soheily-Khah, Saeid. "Generalized k-means-based clustering for temporal data under time warp". Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAM064/document.
Texto completo da fonteTemporal alignment of multiple time series is an important unresolved problem in many scientific disciplines. Major challenges for an accurate temporal alignment include determining and modeling the common and differential characteristics of classes of time series. This thesis is motivated by recent works in extending Dynamic time warping for aligning multiple time series from several applications including speech recognition, curve matching, micro-array data analysis, temporal segmentation or human motion. However these DTW-based works suffer of several limitations: 1) They address the problem of aligning two time series regardless of the remaining time series, 2) They involve uniformly the features of the multiple time series, 3) The time series are aligned globally by including the whole observations. The aim of this thesis is to explore a generalized dynamic time warping for time series clustering. This work includes first the problem of prototype extraction, then the alignment of multiple and multidimensional time series
Teytaut, Yann. "On temporal constraints for deep neural voice alignment". Electronic Thesis or Diss., Sorbonne université, 2023. http://www.theses.fr/2023SORUS196.
Texto completo da fonteTo listen, to respond, to make coincide, to coordinate, to adjust, to follow, to adapt, to be in unison, to synchronize, to align... The rich vocabulary dedicated to the correspondence of human activities shows the importance of their temporal organization. Human communication, multi-modal by nature, is fully concerned by this problematic since there exists a semantic gap between oral locutions and their symbolic sequences: how to interpret a written message without the vocal intonation? what performative style beyond a fixed musical score? This thesis proposes to uncover the complex underlying relationships between the audio and symbolic domains in order to reduce this gap through the fine study of the inherent temporality contained in voice recordings. The voice alignment task lies at the core of this objective, as it aims to determine the temporal occurrence of symbols that are assumed to be present in a voice signal. This work notably focuses on the development of an acoustic model, ADAGIO, capable of estimating such time-symbol links. Recent progress in deep learning have led to implement ADAGIO as a deep neural network in a powerful generic formalism: the “Connectionist Temporal Classification” (CTC). However, the great flexibility offered by CTC is undermined by its intrinsic lack of guarantees for temporally accurate predictions. Therefore, the key contributions of this research consist in reinforcing CTC with additional temporal constraints to improve the quality of the inferred alignments. To do so, three ancillary tasks of (1) spectral content reconstruction; (2) audio structure propagation; and (3) guided monotony are introduced and induce a positive impact on the alignment between voices, texts, and notes. Then, ADAGIO contributes to many practical applications via collaborations such as concatenative speech synthesis or the study of expressive production strategies at play for both social attitudes in speech and singing style in musical performances
Allain, Benjamin. "Suivi volumétrique de formes 3D non rigides". Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAM017/document.
Texto completo da fonteIn this thesis we propose algorithms for tracking 3D deformable shapes in motion from multiview video. Although series of reconstructed 3D shapes can be obtained by applying a static reconstruction algorithm to each temporal frame independently, such series do not represent motion. Instead, we want to provide a temporally coherent representation of the sequence of shapes resulting from temporal evolutions of a shape. Precisely, we want to represent the observed shape sequence as a 3D surface mesh whose vertices move in time but whose topology is constant.In contrast with most existing approaches, we propose to represent the motion of inner shape volumes, with the aim of better accounting for the volumetric nature of the observed object. We provide a fully volumetric approach to the fundamental problems of deformable shape tracking, which are the association between corresponding shape elements and the deformation model. In particular, we extend to a volumetric shape representation the EM-ICP tracking framework and the association-by-detection strategy.Furthermore, in order to better constrain the shape tracking problem, we propose a model for the temporal evolution of deformation. Our deformation model defines a shape space parametrized by variables that capture local deformation properties of the shape and whose values are automatically learned during the tracking process.We validate our tracking algorithms on several multiview video sequences with ground truth (silhouette and marker-based tracking). Our results are better or comparable to state of the art approaches.Finally, we show that volumetric tracking and the shape representation we choose can be leveraged for producing shape animations which combine captured and simulatated motion
Cuvillier, Philippe. "On temporal coherency of probabilistic models for audio-to-score alignment". Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066532/document.
Texto completo da fonteThis thesis deals with automatic alignment of audio recordings with corresponding music scores. We study algorithmic solutions for this problem in the framework of probabilistic models which represent hidden evolution on the music score as stochastic process. We begin this work by investigating theoretical foundations of the design of such models. To do so, we undertake an axiomatic approach which is based on an application peculiarity: music scores provide nominal duration for each event, which is a hint for the actual and unknown duration. Thus, modeling this specific temporal structure through stochastic processes is our main problematic. We define temporal coherency as compliance with such prior information and refine this abstract notion by stating two criteria of coherency. Focusing on hidden semi-Markov models, we demonstrate that coherency is guaranteed by specific mathematical conditions on the probabilistic design and that fulfilling these prescriptions significantly improves precision of alignment algorithms. Such conditions are derived by combining two fields of mathematics, Lévy processes and total positivity of order 2. This is why the second part of this work is a theoretical investigation which extends existing results in the related literature
Cuvillier, Philippe. "On temporal coherency of probabilistic models for audio-to-score alignment". Electronic Thesis or Diss., Paris 6, 2016. http://www.theses.fr/2016PA066532.
Texto completo da fonteThis thesis deals with automatic alignment of audio recordings with corresponding music scores. We study algorithmic solutions for this problem in the framework of probabilistic models which represent hidden evolution on the music score as stochastic process. We begin this work by investigating theoretical foundations of the design of such models. To do so, we undertake an axiomatic approach which is based on an application peculiarity: music scores provide nominal duration for each event, which is a hint for the actual and unknown duration. Thus, modeling this specific temporal structure through stochastic processes is our main problematic. We define temporal coherency as compliance with such prior information and refine this abstract notion by stating two criteria of coherency. Focusing on hidden semi-Markov models, we demonstrate that coherency is guaranteed by specific mathematical conditions on the probabilistic design and that fulfilling these prescriptions significantly improves precision of alignment algorithms. Such conditions are derived by combining two fields of mathematics, Lévy processes and total positivity of order 2. This is why the second part of this work is a theoretical investigation which extends existing results in the related literature
Joder, Cyril. "Alignement temporel musique-sur-partition par modèles graphiques discriminatifs". Phd thesis, Télécom ParisTech, 2011. http://pastel.archives-ouvertes.fr/pastel-00664260.
Texto completo da fontePalaude, Axel. "Stratégies pour la résolution de problèmes : un modèle de classification de comportements de résolution". Electronic Thesis or Diss., Bordeaux, 2024. http://www.theses.fr/2024BORD0381.
Texto completo da fonteLearning regulation is the set of skills that facilitate learning. This includes motivational and emotional skills, as well as meta-cognition skills, such as monitoring goals and strategies. Learning situations are present in every-day life, and mostly take the form of open problems, problems for which there is an unknown solution or method to achieve them. Open problem solving requires learning unknown elements, which requires regulation skills. Understanding the strategies used by learners to solve open-ended problems allows us to better understand the regulation processes and therefore the learning process. Regulatory processes can be influenced and trained, and this understanding of the processes could lead, to better-suited teaching methods. This thesis presents a model representing the learning process of a learner confronted with an open problem, as well as a method allowing, based on external observations of actions carried out by learners, to group problem-solving sequences depending on the strategies used. The analysis methods use clustering algorithms, which using dynamic time warping as a measure of similarity between problem-solving sequences. This dynamic time warping measure is applied to symbolic data, which can be compared through the use of proper metrics. In the context of small datasets, a metaclustering method is presented for robustness purposes. Two case studies use the method defined here to show the potential uses of such a method but also to discuss its limitations. The first, CreaCube, is the study of a creative problem-solving task, in which we try to understand the processes of creativity. Second, Outer Wilds tries to extend the analysis to long problems
Beaudette, David. "Suivi de chansons par reconnaissance automatique de parole et alignement temporel". Mémoire, Université de Sherbrooke, 2010. http://savoirs.usherbrooke.ca/handle/11143/1582.
Texto completo da fonteArsenteva, Polina. "Statistical modeling and analysis of radio-induced adverse effects based on in vitro and in vivo data". Electronic Thesis or Diss., Bourgogne Franche-Comté, 2023. http://www.theses.fr/2023UBFCK074.
Texto completo da fonteIn this work we address the problem of adverse effects induced by radiotherapy on healthy tissues. The goal is to propose a mathematical framework to compare the effects of different irradiation modalities, to be able to ultimately choose those treatments that produce the minimal amounts of adverse effects for potential use in the clinical setting. The adverse effects are studied in the context of two types of data: in terms of the in vitro omic response of human endothelial cells, and in terms of the adverse effects observed on mice in the framework of in vivo experiments. In the in vitro setting, we encounter the problem of extracting key information from complex temporal data that cannot be treated with the methods available in literature. We model the radio-induced fold change, the object that encodes the difference in the effect of two experimental conditions, in the way that allows to take into account the uncertainties of measurements as well as the correlations between the observed entities. We construct a distance, with a further generalization to a dissimilarity measure, allowing to compare the fold changes in terms of all the important statistical properties. Finally, we propose a computationally efficient algorithm performing clustering jointly with temporal alignment of the fold changes. The key features extracted through the latter are visualized using two types of network representations, for the purpose of facilitating biological interpretation. In the in vivo setting, the statistical challenge is to establish a predictive link between variables that, due to the specificities of the experimental design, can never be observed on the same animals. In the context of not having access to joint distributions, we leverage the additional information on the observed groups to infer the linear regression model. We propose two estimators of the regression parameters, one based on the method of moments and the other based on optimal transport, as well as the estimators for the confidence intervals based on the stratified bootstrap procedure
Aperio, bella Ludovica. "Recherche de technihadrons dans le spectre di-électrons et alignement temporel du calorimètre Argon liquide de l'expérience ATLAS". Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00744495.
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