Academic literature on the topic 'Recherche des séries chronologique'
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Journal articles on the topic "Recherche des séries chronologique"
Desjardins, Bertrand. "Introduction des micro-ordinateurs dans l’élaboration des données au programme de recherche en démographie historique." Cahiers québécois de démographie 8, no. 3 (January 6, 2009): 39–57. http://dx.doi.org/10.7202/600797ar.
Full textBanniard, Michel. "Cum tamen aduersos cogor habere deos (Rome, -50)… Manducando filius meus panem ego morieba de famen (Burgos, + 950) : le latin et ses métamorphoses en diachronie longue, des fluctuations du latin classique aux nouvelles régulations du protoroman." Archivum Latinitatis Medii Aevi 77, no. 1 (2019): 27–71. http://dx.doi.org/10.3406/alma.2019.2568.
Full textMcGrail, Kimberlyn M., Meredith B. Lilly, Margaret J. McGregor, Anne-Marie Broemeling, Kia Salomons, Sandra Peterson, Rachael McKendry, and Morris L. Barer. "Health Care Services Use in Assisted Living: A Time Series Analysis." Canadian Journal on Aging / La Revue canadienne du vieillissement 32, no. 2 (May 23, 2013): 173–83. http://dx.doi.org/10.1017/s0714980813000159.
Full textSaidou, Salifou, and Jean-Marie Karimou Ambouta. "Part contributive de la densité démographique au reverdissement de certaines zones fortement anthropisées du Sahel : cas des Communes d’Aguié et d’Ibohamane au Niger." International Journal of Biological and Chemical Sciences 14, no. 3 (June 19, 2020): 816–34. http://dx.doi.org/10.4314/ijbcs.v14i3.14.
Full textMahmoud Omar. "La guerre des Balkans et ses implications pour la vie socio-politique islamique en Europe du Sud-Est (1876-1914 après JC)." International Journal of Science and Society 4, no. 1 (February 15, 2022): 159–69. http://dx.doi.org/10.54783/ijsoc.v4i1.426.
Full textRouleau, Jean-Paul. "La vie religieuse féminine en évolution et sous observation. Un aperçu historique." Articles 67 (December 14, 2011): 209–14. http://dx.doi.org/10.7202/1006774ar.
Full textMatthews, Sarah F. "Jaber F. Gubrium and Andrea Sankar (eds.). Qualitative Methods in Aging Research. Thousand Oaks, CA: Sage Publications, 1994, pp; 294." Canadian Journal on Aging / La Revue canadienne du vieillissement 14, no. 4 (1995): 795–96. http://dx.doi.org/10.1017/s0714980800016470.
Full textCharpentier, Isabelle. "Les séries politiques, marqueurs de classe et de distinction." Politiques de communication N° 20-21, no. 1 (March 6, 2024): 321–58. http://dx.doi.org/10.3917/pdc.020.0321.
Full textDinga, Bruno, Jimbo Henry Claver, Kum Kwa Cletus, and Shu Felix Che. "Modeling and Predicting Exchange Rate Volatility: Application of Symmetric GARCH and Asymmetric EGARCH and GJR-GARCH Models." Journal of the Cameroon Academy of Sciences 19, no. 2 (August 3, 2023): 155–78. http://dx.doi.org/10.4314/jcas.v19i2.6.
Full textLetalle, Laurie, Emilie Longobardi, and Yannick Courbois. "Effet de l’âge chronologique sur l’autorégulation et l’hétérorégulation chez des jeunes présentant une déficience intellectuelle." Revue francophone de la déficience intellectuelle 25 (November 17, 2014): 37–51. http://dx.doi.org/10.7202/1027326ar.
Full textDissertations / Theses on the topic "Recherche des séries chronologique"
Vuillemin, Benoit. "Recherche de règles de prédiction dans un contexte d'Intelligence Ambiante." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSE1120.
Full textThis thesis deals with the subject of Ambient Intelligence, the fusion between Artificial Intelligence and the Internet of Things. The goal of this work is to extract prediction rules from the data provided by connected objects in an environment, in order to propose automation to users. Our main concern relies on privacy, user interactions, and the explainability of the system’s operation. In this context, several contributions were made. The first is an ambient intelligence architecture that operates locally, and processes data from a single connected environment. The second is a discretization process without a priori on the input data, allowing to take into account different kinds of data from various objects. The third is a new algorithm for searching rules over a time series, which avoids the limitations of stateoftheart algorithms. The approach was validated by tests on two real databases. Finally, prospects for future developments in the system are presented
Jiao, Yang. "Applications of artificial intelligence in e-commerce and finance." Electronic Thesis or Diss., Evry, Institut national des télécommunications, 2018. http://www.theses.fr/2018TELE0002.
Full textArtificial Intelligence has penetrated into every aspect of our lives in this era of Big Data. It has brought revolutionary changes upon various sectors including e-commerce and finance. In this thesis, we present four applications of AI which improve existing goods and services, enables automation and greatly increase the efficiency of many tasks in both domains. Firstly, we improve the product search service offered by most e-commerce sites by using a novel term weighting scheme to better assess term importance within a search query. Then we build a predictive model on daily sales using a time series forecasting approach and leverage the predicted results to rank product search results in order to maximize the revenue of a company. Next, we present the product categorization challenge we hold online and analyze the winning solutions, consisting of the state-of-the-art classification algorithms, on our real dataset. Finally, we combine skills acquired previously from time series based sales prediction and classification to predict one of the most difficult but also the most attractive time series: stock. We perform an extensive study on every single stocks of S&P 500 index using four state-of-the-art classification algorithms and report very promising results
Çinar, Yagmur Gizem. "Prédiction de séquences basée sur des réseaux de neurones récurrents dans le contexte des séries temporelles et des sessions de recherche d'information." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAM079.
Full textThis thesis investigates challenges of sequence prediction in different scenarios such as sequence prediction using recurrent neural networks (RNNs) in the context of time series and information retrieval (IR) search sessions. Predicting the unknown values that follow some previously observed values is basically called sequence prediction.It is widely applicable to many domains where a sequential behavior is observed in the data. In this study, we focus on two different types of sequence prediction tasks: time series forecasting and next query prediction in an information retrieval search session.Time series often display pseudo-periods, i.e. time intervals with strong correlation between values of time series. Seasonal changes in weather time series or electricity usage at day and night time are some examples of pseudo-periods. In a forecasting scenario, pseudo-periods correspond to the difference between the positions of the output being predicted and specific inputs.In order to capture periods in RNNs, one needs a memory of the input sequence. Sequence-to-sequence RNNs (with attention mechanism) reuse specific (representations of) input values to predict output values. Sequence-to-sequence RNNs with an attention mechanism seem to be adequate for capturing periods. In this manner, we first explore the capability of an attention mechanism in that context. However, according to our initial analysis, a standard attention mechanism did not perform well to capture the periods. Therefore, we propose a period-aware content-based attention RNN model. This model is an extension of state-of-the-art sequence-to-sequence RNNs with attention mechanism and it is aimed to capture the periods in time series with or without missing values.Our experimental results with period-aware content-based attention RNNs show significant improvement on univariate and multivariate time series forecasting performance on several publicly available data sets.Another challenge in sequence prediction is the next query prediction. The next query prediction helps users to disambiguate their search query, to explore different aspects of the information they need or to form a precise and succint query that leads to higher retrieval performance. A search session is dynamic, and the information need of a user might change over a search session as a result of the search interactions. Furthermore, interactions of a user with a search engine influence the user's query reformulations. Considering this influence on the query formulations, we first analyze where the next query words come from? Using the analysis of the sources of query words, we propose two next query prediction approaches: a set view and a sequence view.The set view adapts a bag-of-words approach using a novel feature set defined based on the sources of next query words analysis. Here, the next query is predicted using learning to rank. The sequence view extends a hierarchical RNN model by considering the sources of next query words in the prediction. The sources of next query words are incorporated by using an attention mechanism on the interaction words. We have observed using sequence approach, a natural formulation of the problem, and exploiting all sources of evidence lead to better next query prediction
Linardi, Michele. "Variable-length similarity search for very large data series : subsequence matching, motif and discord detection." Electronic Thesis or Diss., Sorbonne Paris Cité, 2019. http://www.theses.fr/2019USPCB056.
Full textData series (ordered sequences of real valued points, a.k.a. time series) has become one of the most important and popular data-type, which is present in almost all scientific fields. For the last two decades, but more evidently in this last period the interest in this data-type is growing at a fast pace. The reason behind this is mainly due to the recent advances in sensing, networking, data processing and storage technologies, which have significantly assisted the process of generating and collecting large amounts of data series. Data series similarity search has emerged as a fundamental operation at the core of several analysis tasks and applications related to data series collections. Many solutions to different data mining problems, such as Clustering, Subsequence Matching, Imputation of Missing Values, Motif Discovery, and Anomaly detection work by means of similarity search. Data series indexes have been proposed for fast similarity search. Nevertheless all existing indexes can only answer queries of a single length (fixed at index construction time), which is a severe limitation. In this regard, all solutions for the aforementioned problems require the prior knowledge of the series length, on which similarity search is performed. Consequently, the user must know the length of the expected results, which is often an unrealistic assumption. This aspect is thus of paramount importance. In several cases, the length is a critical parameter that heavily influences the quality of the final outcome. In this thesis, we propose scalable solutions that enable variable-length analysis of very large data series collections. We propose ULISSE, the first data series index structure designed for answering similarity search queries of variable length. Our contribution is two-fold. First, we introduce a novel representation technique, which effectively and succinctly summarizes multiple sequences of different length. Based on the proposed index, we describe efficient algorithms for approximate and exact similarity search, combining disk based index visits and in-memory sequential scans. Our approach supports non Z-normalized and Z-normalized sequences, and can be used with no changes with both Euclidean Distance and Dynamic Time Warping, for answering both κ-NN and ε-range queries. We experimentally evaluate our approach using several synthetic and real datasets. The results show that ULISSE is several times, and up to orders of magnitude more efficient in terms of both space and time cost, when compared to competing approaches. Subsequently, we introduce a new framework, which provides an exact and scalable motif and discord discovery algorithm that efficiently finds all motifs and discords in a given range of lengths. The experimental evaluation we conducted over several diverse real datasets show that our approaches are up to orders of magnitude faster than the alternatives. We moreover demonstrate that we can remove the unrealistic constraint of performing analytics using a predefined length, leading to more intuitive and actionable results, which would have otherwise been missed
Schroeder, Pascal. "Performance guaranteeing algorithms for solving online decision problems in financial systems." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0143.
Full textThis thesis contains several online financial decision problems and their solutions. The problems are formulated as online problems (OP) and online algorithms (OA) are created to solve them. Due to the fact that there can be various OA for the same OP, there must be some criteria with which one can make statements about the quality of an OA. In this thesis these criteria are the competitive ratio (c), the competitive difference (cd) and the numerical performance. An OA with a lower c is preferable to another one with a higher value. An OA that has the lowest c is called optimal. We consider the following OPS. The online conversion problem (OCP), the online portfolio selection problem (PSP) and the cash management problem (CMP). After the introductory chapter, the OPs, the notation and the state of the art in the field of OPs is presented. In the third chapter, three variants of the OCP with interrelated prices are solved. In the fourth chapter the time series search with interrelated prices is revisited and new algorithms are created. At the end of the chapter, the optimal OA k-DIV for the general k-max search with interrelated prices is developed. In Chapter 5 the PSP with interrelated prices is solved. The created OA OPIP is optimal. Using the idea of OPIP, an optimal OA for the two-way trading is created (OCIP). Having OCIP, an optimal OA for the bi-directional search knowing the values of θ_1 and θ_2 is created (BUND). For unknown θ_1 and θ_2, the optimal OA RUNis created. The chapter ends with an empirical (for OPIP) and experimental (for OCIP, BUND and RUN) testing. Chapters 6 and 7 deal with the CMP. In both of them, a numerical testing is done in order to compare the numerical performance of the new OAs to the one of the already established ones. In Chapter 6 an optimal OA is constructed; in Chapter 7, OAs are designed which minimize cd. The OA BCSID solves the CMP with interrelated demands to optimality. The OA aBBCSID solves the CMP when the values of de θ_1, θ_2,m and M are known; however, this OA is not optimal. In Chapter 7 the CMP is solved, knowing m and M and minimizing cd (OA MRBD). For the interrelated demands, a heuristic OA (HMRID) and a cd-minimizing OA (MRID) is presented. HMRID is good compromise between the numerical performance and the minimization of cd. The thesis concludes with a short discussion about shortcomings of the considered OPs and the created OAs. Then some remarks about future research possibilities in this field are given
Jiao, Yang. "Applications of artificial intelligence in e-commerce and finance." Thesis, Evry, Institut national des télécommunications, 2018. http://www.theses.fr/2018TELE0002/document.
Full textArtificial Intelligence has penetrated into every aspect of our lives in this era of Big Data. It has brought revolutionary changes upon various sectors including e-commerce and finance. In this thesis, we present four applications of AI which improve existing goods and services, enables automation and greatly increase the efficiency of many tasks in both domains. Firstly, we improve the product search service offered by most e-commerce sites by using a novel term weighting scheme to better assess term importance within a search query. Then we build a predictive model on daily sales using a time series forecasting approach and leverage the predicted results to rank product search results in order to maximize the revenue of a company. Next, we present the product categorization challenge we hold online and analyze the winning solutions, consisting of the state-of-the-art classification algorithms, on our real dataset. Finally, we combine skills acquired previously from time series based sales prediction and classification to predict one of the most difficult but also the most attractive time series: stock. We perform an extensive study on every single stocks of S&P 500 index using four state-of-the-art classification algorithms and report very promising results
Gagnon, Jean-François. "Prévision humaine de séries temporelles." Doctoral thesis, Université Laval, 2014. http://hdl.handle.net/20.500.11794/25243.
Full textFaure, Cynthia. "Détection de ruptures et identification des causes ou des symptômes dans le fonctionnement des turboréacteurs durant les vols et les essais." Thesis, Paris 1, 2018. http://www.theses.fr/2018PA01E059/document.
Full textAnalysing multivariate time series created by sensors during a flight or a bench test represents a new challenge for aircraft engineers. Each time series can be decomposed univariately into a series of stabilised phases, well known by the expert, and transient phases that are merely explored but very informative when the engine is running. Our project aims at converting these time series into a succession of labels, designing transient and stabilised phases in a bivariate context. This transformation of the data will allow several perspectives: tracking similar behaviours or bivariate patterns seen during a flight, finding similar curves from a given curve, identifying the atypical curves, detecting frequent or rare sequences of labels during a flight, discovering hidden multivariate structures, modelling a representative flight, and spotting unusual flights. This manuscript proposes : methodology to automatically identify transient and stabilized phases, cluster all engine transient phases, label multivariate time series and analyse them. All algorithms are applied on real flight measurements with a validation of the results from expert knowledge
Guillemé, Maël. "Extraction de connaissances interprétables dans des séries temporelles." Thesis, Rennes 1, 2019. http://www.theses.fr/2019REN1S102.
Full textEnergiency is a company that sells a platform to allow manufacturers to analyze their energy consumption data represented in the form of time series. This platform integrates machine learning models to meet customer needs. The application of such models to time series encounters two problems: on the one hand, some classical machine learning approaches have been designed for tabular data and must be adapted to time series, on the other hand, the results of some approaches are difficult for end users to understand. In the first part, we adapt a method to search for occurrences of temporal rules on time series from machines and industrial infrastructures. A temporal rule captures successional relationships between behaviors in time series . In industrial series, due to the presence of many external factors, these regular behaviours can be disruptive. Current methods for searching the occurrences of a rule use a distance measure to assess the similarity between sub-series. However, these measurements are not suitable for assessing the similarity of distorted series such as those in industrial settings. The first contribution of this thesis is the proposal of a method for searching for occurrences of temporal rules capable of capturing this variability in industrial time series. For this purpose, the method integrates the use of elastic distance measurements capable of assessing the similarity between slightly deformed time series. The second part of the thesis is devoted to the interpretability of time series classification methods, i.e. the ability of a classifier to return explanations for its results. These explanations must be understandable by a human. Classification is the task of associating a time series with a category. For an end user inclined to make decisions based on a classifier’s results, understanding the rationale behind those results is of great importance. Otherwise, it is like having blind confidence in the classifier. The second contribution of this thesis is an interpretable time series classifier that can directly provide explanations for its results. This classifier uses local information on time series to discriminate against them. The third and last contribution of this thesis, a method to explain a posteriori any result of any classifier. We carried out a user study to evaluate the interpretability of our method
Boughrara, Adel. "Sur la modélisation dynamique retrospective et prospective des séries temporelles : une étude méthodologique." Aix-Marseille 3, 1997. http://www.theses.fr/1997AIX32054.
Full textThe past years have witnessed intensive competition among economic and econometric methodologies attempting to explain macroeconomic behaviour. Alternative schools have made claims with respect both to the purity of their methodology and to their ability to explain the facts. This thesis investigates the epistemological foundations of the major competitors, namely, the new classical school with its links to prospective econometric modelling on the one hand, and the retrospective modelling which is more close to inductive methods, on the other hand. The main conclusion of the thesis is that none of the rival schools has a very tight link with the popperien epistemology of falsificationism
Books on the topic "Recherche des séries chronologique"
Gourieroux, Christian. Séries temporelles et modèles dynamiques. Paris: Economica, 1990.
Find full textBowerman, Bruce L. Time series forecasting: Unified concepts and computer implementation. 2nd ed. Boston: Duxbury Press, 1987.
Find full textMills, Terence C. Time series techniques for economists. Cambridge [England]: Cambridge University Press, 1990.
Find full textMills, Terence C. Time series techniques for economists. Cambridge: Cambridge University Press, 1992.
Find full textBook chapters on the topic "Recherche des séries chronologique"
ATTO, Abdourrahmane M., Aluísio PINHEIRO, Guillaume GINOLHAC, and Pedro MORETTIN. "Analyse d’ordre fractionnaire et prédiction de trajectoire de cyclones." In Détection de changements et analyse des séries temporelles d’images 1, 159–82. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9056.ch6.
Full text"1. Table chronologique." In Atelier de recherche sur les textes médiévaux, 127–228. Turnhout: Brepols Publishers, 2001. http://dx.doi.org/10.1484/m.artem-eb.4.00270.
Full textCONRADSEN, Knut, Henning SKRIVER, Morton J. CANTY, and Allan A. NIELSEN. "Détection de séries de changements dans des séries d’images SAR polarimétriques." In Détection de changements et analyse des séries temporelles d’images 1, 41–81. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9056.ch2.
Full textMorin, Céline. "Chapitre deux. Femmes et médias : courants de recherche." In Les Héroïnes de séries américaines, 41–57. Presses universitaires François-Rabelais, 2017. http://dx.doi.org/10.4000/books.pufr.9056.
Full textBéal, Christophe. "24 heures chrono et l’état d’exception." In 24 heures chrono, naissance du genre sécuritaire ? Librairie Philosophique J. Vrin, 2022. http://dx.doi.org/10.53984/philoseries02324.
Full textJullia, Patricia, and Frédéric Marty. "Un si grand soleil, une série très « Sud de France » ?" In Marque et Territoire : Dispositifs, stratégies et enjeux, 189–210. Éditions de l'Université de Lorraine, 2023. http://dx.doi.org/10.62688/edul/b9782384510122/c03c.
Full textBillard, Michel. "Évolution des pathocénoses du Néolithique moyen à la Tène sur des séries ostéo-archéologiques de Limagne d'Auvergne (Puy-de-Dôme)." In Économie et société de la fin de la Préhistoire : Actualité de la recherche, 317–25. Alpara, 2010. http://dx.doi.org/10.4000/books.alpara.3670.
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