Publications équipe DIM - 2009

  1. Ahmed Kharrat, Iulian Sandu Popa, Karine Zeitouni and Sami Faiz. Caractérisation de la densité de trafic et de son évolution à partir de trajectoires d'objets mobiles. In UbiMob 2009. 2009, 33-40. BibTeX

    @inproceedings{KSZF09,
    	author = "Kharrat, Ahmed and Sandu Popa, Iulian and Zeitouni, Karine and Faiz, Sami",
    	title = "{Caractérisation de la densité de trafic et de son évolution à partir de trajectoires d'objets mobiles}",
    	booktitle = "{UbiMob 2009}",
    	year = "{2009}",
    	pages = "{33-40}",
    	owner = "MOIS",
    	timestamp = "2011.07.28"
    }
    
  2. Georges Gardarin, Benjamin Nguyen, Laurent Yeh, Karine Zeitouni, Bogdan Butnaru and Iulian Sandu-Popa. {Gestion efficace de séries temporelles en P2P: Application à l'analyse technique et l'étude des objets mobiles}. In {Bases de Données Avancées}. 2009.
    Abstract In this paper, we propose a simple generic model to manage time series. A time series is composed of a calendar with a typed value for each calendar entry. Although the model could support any kind of XML typed values, in this paper we focus on real numbers, which are the usual application. We define basic vector space operations (plus, minus, scale), and also relational-like and application oriented operators to manage time series. We show the interest of this generic model on two applications: (i) a stock investment helper; (ii) an ecological transport management system. Stock investment requires window-based operations while trip management requires complex queries. The model has been implemented and tested in PHP, Java, and XQuery. We show benchmark results illustrating that the computing of 5000 series of over 100.000 entries in length – common requirements for both applications – is difficult on classical centralized PCs. In order to serve a community of users sharing time series, we propose a P2P implementation of time series by dividing them in segments and providing optimized algorithms for operator expression computation. URL BibTeX

    @inproceedings{GNY+09,
    	author = "Gardarin, Georges and Nguyen, Benjamin and Yeh, Laurent and Zeitouni, Karine and Butnaru, Bogdan and Sandu-Popa, Iulian",
    	title = "{Gestion efficace de s{\'e}ries temporelles en P2P: Application {\`a} l'analyse technique et l'{\'e}tude des objets mobiles}",
    	booktitle = "{Bases de Donn{\'e}es Avanc{\'e}es}",
    	year = "{2009}",
    	address = "{Namur, Belgique}",
    	month = "{} } # Oct # { {}",
    	abstract = "{In this paper, we propose a simple generic model to manage time series. A time series is composed of a calendar with a typed value for each calendar entry. Although the model could support any kind of XML typed values, in this paper we focus on real numbers, which are the usual application. We define basic vector space operations (plus, minus, scale), and also relational-like and application oriented operators to manage time series. We show the interest of this generic model on two applications: (i) a stock investment helper; (ii) an ecological transport management system. Stock investment requires window-based operations while trip management requires complex queries. The model has been implemented and tested in PHP, Java, and XQuery. We show benchmark results illustrating that the computing of 5000 series of over 100.000 entries in length -- common requirements for both applications -- is difficult on classical centralized PCs. In order to serve a community of users sharing time series, we propose a P2P implementation of time series by dividing them in segments and providing optimized algorithms for operator expression computation.}",
    	affiliation = "Parall{\'e}lisme, R{\'e}seaux, Syst{\`e}mes d'information, Mod{\'e}lisation - PRISM - CNRS : UMR8144 - Universit{\'e} de Versailles-Saint Quentin en Yvelines",
    	file = "bda2009.pdf:http\://hal.archives-ouvertes.fr/hal-00488660/PDF/bda2009.pdf:PDF",
    	hal_id = "hal-00488660",
    	language = "Anglais",
    	url = "http://hal.archives-ouvertes.fr/hal-00488660/en/"
    }
    
  3. Pablo Andres Diaz, Francois-Xavier Dudouet, Jean-Christophe Graz, Benjamin Nguyen and Antoine Vion. Gouverner la standardisation par les changements d'arène. Le cas du XML. In {Congrès International des Associations Francophones de Science Politique}. 2009, http://www.congresafsp2009.fr/. Communication in the Economy of Politics and Politics of Economy session of the French Political Sciences Association Congress (AFSP).
    Abstract In this paper, we discuss the available approches of the new governance structures of standardization, in order to propose new hypothesis on the way computer sciences languages are dealt with. We consider the example of the XML language and its applications in order to propose a dynamic analysis of this governance, focusing on the coordination that is done by companies, and the strategic usage they have of these arenas to further their goals. We advocate the development of more of such empirical analysis in order to cover all the perspectives of possible international policies in this area. URL BibTeX

    @inproceedings{DDG+09,
    	author = "Diaz, Pablo Andres and Dudouet, Francois-Xavier and Graz, Jean-Christophe and Nguyen, Benjamin and Vion, Antoine",
    	title = "{Gouverner la standardisation par les changements d'arène. Le cas du XML}",
    	booktitle = "{Congr{\`e}s International des Associations Francophones de Science Politique}",
    	year = "{2009}",
    	pages = "{http://www.congresafsp2009.fr/}",
    	address = "{Grenoble, France}",
    	note = "{Communication in the Economy of Politics and Politics of Economy session of the French Political Sciences Association Congress (AFSP)}",
    	abstract = "{In this paper, we discuss the available approches of the new governance structures of standardization, in order to propose new hypothesis on the way computer sciences languages are dealt with. We consider the example of the XML language and its applications in order to propose a dynamic analysis of this governance, focusing on the coordination that is done by companies, and the strategic usage they have of these arenas to further their goals. We advocate the development of more of such empirical analysis in order to cover all the perspectives of possible international policies in this area.}",
    	affiliation = "Institut de recherche interdisciplinaire en sociologie, {\'e}conomie, science politique - IRISES - Universit{\'e} Paris Dauphine - Paris IX - CNRS : UMR7170 - Parall{\'e}lisme, R{\'e}seaux, Syst{\`e}mes d'information, Mod{\'e}lisation - PRISM - CNRS : UMR8144 - Universit{\'e} de Versailles-Saint Quentin en Yvelines - Laboratoire d'{\'e}conomie et de sociologie du travail - LEST - CNRS : UMR6123 - Universit{\'e} de Provence - Aix-Marseille I - Universit{\'e} de la M{\'e}diterran{\'e}e - Aix-Marseille II",
    	audience = "internationale",
    	hal_id = "hal-00456205",
    	language = "Fran{\c c}ais",
    	url = "http://hal.archives-ouvertes.fr/hal-00456205/en/"
    }
    
  4. Bogdan Butnaru, Benjamin Nguyen, Georges Gardarin and Laurent Yeh. XQ2P: Efficient XQuery P2P Time Series Processing. In {Bases de Données Avancées (Démonstration)}. 2009.
    Abstract In this demonstration, we propose a model for the management of XML time series (TS), using the new XQuery 1.1 window operator. We argue that centralized computation is slow, and demonstrate XQ2P, our prototype of efficient XQuery P2P TS computation in the context of financial analysis of large data sets (>1M values). URL BibTeX

    @inproceedings{BNGY09,
    	author = "Butnaru, Bogdan and Nguyen, Benjamin and Gardarin, Georges and Yeh,	Laurent",
    	title = "{XQ2P: Efficient XQuery P2P Time Series Processing}",
    	booktitle = "{Bases de Donn{\'e}es Avanc{\'e}es (D{\'e}monstration)}",
    	year = "{2009}",
    	address = "{Namur, Belgique}",
    	month = "{} } # Oct # { {}",
    	abstract = "{In this demonstration, we propose a model for the management of XML time series (TS), using the new XQuery 1.1 window operator. We argue that centralized computation is slow, and demonstrate XQ2P, our prototype of efficient XQuery P2P TS computation in the context of financial analysis of large data sets (>1M values).}",
    	affiliation = "Parall{\'e}lisme, R{\'e}seaux, Syst{\`e}mes d'information, Mod{\'e}lisation - PRISM - CNRS : UMR8144 - Universit{\'e} de Versailles-Saint Quentin en Yvelines",
    	file = "bda2009-demo.pdf:http\://hal.archives-ouvertes.fr/hal-00488663/PDF/bda2009-demo.pdf:PDF",
    	hal_id = "hal-00488663",
    	language = "Anglais",
    	url = "http://hal.archives-ouvertes.fr/hal-00488663/en/"
    }
    

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