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  • Publication . Part of book or chapter of book . 2019
    Closed Access English
    Authors: 
    Dan E. Webster; Sandrine Roulland; James D. Phelan;
    Publisher: HAL CCSD
    Country: France
    Project: EC | LYMPHOSIGN (661066)

    Genome-wide screens are a powerful technique to dissect the complex network of genes regulating diverse cellular phenotypes. The recent adaptation of the CRISPR-Cas9 system for genome engineering has revolutionized functional genomic screening. Here, we present protocols used to introduce Cas9 into human lymphoma cell lines, produce high-titer lentivirus of a genome-wide sgRNA library, transduce and culture cells during the screen, isolate genomic DNA, and prepare a custom library for next-generation sequencing. These protocols were tailored for loss-of-function CRISPR screens in human lymphoma cell lines but are highly amenable for other experimental purposes.

  • Publication . Part of book or chapter of book . Preprint . Article . 2020
    Open Access English
    Authors: 
    Florian Bridoux; Maximilien Gadouleau; Guillaume Theyssier;
    Publisher: HAL CCSD
    Country: France

    Automata networks are mappings of the form \(f: Q^Z \rightarrow Q^Z\), where Q is a finite alphabet and Z is a set of entities; they generalise Cellular Automata and Boolean networks. An update schedule dictates when each entity updates its state according to its local function \(f_i: Q^Z \rightarrow Q\). One major question is to study the behaviour of a given automata networks under different update schedules. In this paper, we study automata networks that are invariant under many different update schedules. This gives rise to two definitions, locally commutative and globally commutative networks. We investigate the relation between commutativity and different forms of locality of update functions; one main conclusion is that globally commutative networks have strong dynamical properties, while locally commutative networks are much less constrained. We also give a complete classification of all globally commutative Boolean networks.

  • Publication . Conference object . Part of book or chapter of book . 2019
    Open Access English
    Authors: 
    Marco Buongiorno Nardelli;
    Publisher: HAL CCSD
    Country: France

    We present the API for MUSICNTWRK, a python library for pitch class set and rhythmic sequences classification and manipulation, the generation of networks in generalized music and sound spaces, deep learning algorithms for timbre recognition, and the sonification of arbitrary data. The software is freely available under GPL 3.0 and can be downloaded at www.musicntwrk.com or installed as a PyPi project (pip install musicntwrk).

  • Publication . Part of book or chapter of book . 2011
    English
    Authors: 
    Dousset, Laurent;
    Publisher: HAL CCSD
    Country: France

    Everywhere humans structure their social field, amongst others, by way of what is called a kinship system. Such systems include aspects of language (kinship terminology), aspects of practice and strategy (marriage, normative behaviours) and aspects of transmission and social reproduction (inheritance and descent). This chapter provides the theoretical and methodological tools to investigate this important social field.

  • Publication . Other literature type . Conference object . Preprint . Part of book or chapter of book . Article . 2013
    Open Access English
    Authors: 
    Xin Luna Dong; Laure Berti-Equille; Divesh Srivastava;
    Publisher: HAL CCSD
    Country: France

    Many data management applications, such as setting up Web portals, managing enterprise data, managing community data, and sharing scientific data, require integrating data from multiple sources. Each of these sources provides a set of values and different sources can often provide conflicting values. To present quality data to users, it is critical to resolve conflicts and discover values that reflect the real world; this task is called {\em data fusion}. This paper describes a novel approach that finds true values from conflicting information when there are a large number of sources, among which some may copy from others. We present a case study on real-world data showing that the described algorithm can significantly improve accuracy of truth discovery and is scalable when there are a large number of data sources. Comment: WAIM 2013

  • Publication . Conference object . Article . Part of book or chapter of book . 2020
    Open Access English
    Authors: 
    Alexis Joly; Hervé Goëau; Stefan Kahl; Christophe Botella; Rafael Ruiz De Castaneda; Hervé Glotin; Elijah Cole; Julien Champ; Benjamin Deneu; Maximillien Servajean; +6 more
    Publisher: HAL CCSD
    Country: France
    Project: EC | COS4CLOUD (863463), ANR | SMILES (ANR-18-CE40-0014), NSF | Graduate Research Fellows... (1745301)

    International audience; Building accurate knowledge of the identity, the geographic distribution and the evolution of species is essential for the sustainable development of humanity, as well as for biodiversity conservation. However, the difficulty of identifying plants and animals in the field is hindering the aggregation of new data and knowledge. Identifying and naming living plants or animals is almost impossible for the general public and is often difficult even for professionals and naturalists. Bridging this gap is a key step towards enabling effective biodiversity monitoring systems. The LifeCLEF campaign, presented in this paper, has been promoting and evaluating advances in this domain since 2011. The 2020 edition proposes four data-oriented challenges related to the identification and prediction of biodiversity: (i) PlantCLEF: cross-domain plant identification based on herbarium sheets, (ii) BirdCLEF: bird species recognition in audio soundscapes, (iii) GeoLifeCLEF: location-based prediction of species based on environmental and occurrence data, and (iv) SnakeCLEF: image-based snake identification.

  • Publication . Part of book or chapter of book . 2019
    Open Access
    Authors: 
    Pierre Drap; Odile Papini; Djamal Merad; Jérôme Pasquet; Jean-Philip Royer; Mohamad Motasem Nawaf; Mauro Saccone; Mohamed Ben Ellefi; Bertrand Chemisky; Julien Seinturier; +3 more
    Publisher: Springer International Publishing
    Country: France
    Project: ANR | GROPLAN (ANR-13-CORD-0014)

    International audience; This chapter introduces several state of the art techniques that could help to make deep underwater archaeological photogrammetric surveys easier, faster, more accurate, and to provide more visually appealing representations in 2D and 3D for both experts and public. We detail how the 3D captured data is analysed and then represented using ontologies, and how this facilitates interdisciplinary interpretation and cooperation. Towards more automation, we present a new method that adopts a deep learning approach for the detection and the recognition of objects of interest, amphorae for example. In order to provide more readable, direct and clearer illustrations, we describe several techniques that generate different styles of sketches out of orthophotos developed using neural networks. In the same direction, we present the Non-Photorealistic Rendering (NPR) technique, which converts a 3D model into a more readable 2D representation that is more useful to communicate and simplifies the identification of objects of interest. Regarding public dissemination, we demonstrate how recent advances in virtual reality to provide an accurate, high resolution, amusing and appropriate visualization tool that offers the public the possibility to ‘visit’ an unreachable archaeological site. Finally, we conclude by introducing the plenoptic approach, a new promising technology that can change the future of the photogrammetry by making it easier and less time consuming and that allows a user to create a 3D model using only one camera shot. Here, we introduce the concepts, the developing process, and some results, which we obtained with underwater imaging.

  • Open Access English
    Authors: 
    Claude Springer;
    Publisher: HAL CCSD
    Country: France

    International audience; Ce début du 21e siècle est marqué par l'explosion des réseaux sociaux mais également par une nouvelle approche plus informelle, massive et ouverte de l'apprentissage. La dimension sociale (Springer, 2009), que l'on peut déduire de la prise en compte de l'action sociale (CECR, 2001), doit être interprétée dans toute sa dimension à la fois physique et virtuelle. L'acteur social est aujourd'hui connecté, confronté à des « textes » qui ne relèvent plus uniquement du mode écrit et de la littératie classique, ni même de la plurilittératie. La question de l'intégration linguistique des migrants doit ainsi prendre en compte la nouvelle donne numérique. Or, la didactique des langues vise avant tout la maitrise de la littératie écrite, malgré l'affirmation de l'importance de la communication orale et l'accent mis sur l'éducation plurilingue comme finalité. Il en va de même pour les échelles de performances du CECR ainsi que pour les certifications en langues, et en particulier pour les certifications du public migrant très marquées par l'alphabétisation (Huver et Springer, 2011). Les nouvelles vagues de migration, auxquelles nous assistons, montrent l'importance croissante de l'e-migration et des réseaux sociaux qui accompagnent les migrants dans leur fuite de la guerre et de la barbarie. Diminescu (2005) décrit les réseaux mis en place par les migrants connectés ; Bashi (2007), de son côté, montre que l'intégration sociale (la survie sociale) dépend de la qualité des liens (survival of the knitted) qu'ils entretiennent avec leurs communautés. La théorie des réseaux de liens (Granovetter, 1973) exprime cette nouvelle réalité. La compétence plurilingue ne peut donc plus suffire. Elle est portée et renforcée par de nouvelles compétences qui relèvent de la translittératie (digital literacy) et de la multimodalité. De nouvelles recherches (Kress, 2009) montrent que le monde numérique actuel n'est plus fondé sur le mode écrit. La toile propose en effet des « textes » multimodaux qui relèvent plus d'une sémiotique sociale (Halliday, 1978) que d'une linguistique structurale et textuelle ou d'une sociolinguistique. Dès lors, il semble indispensable de faire évoluer le cadrage théorique qui sous-tend la didactique des langues, le CECR ainsi que les certifications pour les migrants adultes. Nous appuierons cette problématique sur une analyse de discours de forums de migrants (Facebook) ainsi que sur les résultats d'une enquête auprès d'associations de migrants à Marseille. La Recommandation 2034 (2014) alinéa 7.2. suggère de « proposer des options autres que les tests de langue/d'intégration pour promouvoir et mesurer l'intégration et améliorer les perspectives d'intégration des migrants et des candidats à l'immigration ». Il nous semble que ces options devraient prendre en compte les nouvelles compétences numériques pour accompagner une société de la connaissance réellement inclusive (Stratégie de Lisbonne, 2000, et Europe 2020).

  • Publication . Part of book or chapter of book . Conference object . 2012
    Closed Access
    Authors: 
    Zohir Bouzid; Shantanu Das; Sébastien Tixeuil;
    Publisher: Springer Berlin Heidelberg
    Country: France

    Robot Systems. This paper considers distributed systems of autonomous robots that can move freely on the two-dimensional Euclidean space, have visibility sensors (to see other robots, obstacles etc.) and can perform computations. One of the fundamental problems in distributed coordination of robots is to gather the robots at a single location. The gathering problem has been studied under various models with the objective of determining the minimal set of assumptions that still allows the robots to gather successfully within a finite time. For example, it is known that gathering can be solved even if the robots are anonymous (indistinguishable from each-other), oblivious (no persistent memory of the past), and cannot communicate explicitly with each other (except for indirect signaling using movement). Further, the robots may not share a common sense of direction. Robots operate in cycles that comprise look, compute, and move phases. The look phase consists in taking a snapshot of the other robots positions. In the compute phase, a robot computes a target destination, based on the previous observation, using a deterministic algorithm and in the move phase, the robot moves toward the computed destination (although the move may end before reaching the target destination). We consider the semi-synchronous ATOM model [4], where each cycle is considered to be atomic but only a subset of the robots may be active in each cycle. The robots are modeled as points on the Euclidean plane and the objective is to gather all robots at a single point.

  • Publication . Part of book or chapter of book . Other literature type . Article . 2007
    Open Access English
    Authors: 
    Cornean, Horia D.; Thomas Pedersen; Ricaud, Benjamin;
    Publisher: HAL CCSD
    Countries: France, France, Denmark

    Published in: Contemporary Mathematics: "Adventures in Mathematical Physics". Editors: F. Germinet and P. D. Hislop, 2007.; International audience; Recent two-photon photo-luminescence experiments give accurate data for the ground and first excited excitonic energies at different nanotube radii. In this paper we compare the analytic approximations proved in [CDR], with a standard variational approach. We show an excellent agreement at sufficiently small radii.

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