In the press: Xerox: “Wir bleiben den Druckern treu”
Published in Futurezone Technology News (27 Aug 2014)
CLEF 2014 Conference and Labs of the Evaluation Forum; 15 - 18 September 2014, Sheffield - UK
Abstract: In this paper we report the contribution of XRCE team to the Domain Adaptation Challenge organized in the framework of ImageCLEF 2014 competition. We describe our approach to build an image classification system when a weak image annotation in the target domain is compensated by massively annotated images in source domains. One method is based using several heterogeneous methods for the domain adaptation aimed at the late fusion of the individual predictions. One big class of domain adaptation methods addresses a selective reuse of instances from source domains for target domain. We adopt the adaptive boosting for weighting source instances which learns a combination of weak classifiers in the target domain. Another class of methods aims to transform both target and source domains in a common space. In this class we focused on metric learning approaches aimed at reducing distances between images from the same class and to increase distances of different classes independently if they are from source or target domain. Combined the above approaches with a ”brute-force” SVM-based approach we obtain a set of heterogeneous classifiers for class prediction of target instances. In order to improve the overall accuracy, we combine individual classifiers through different versions of majority voting. We describe different series of experiments including those submitted for the official competition and analyze their results.
ECCV 2014 – European Conference on Computer Vision; Zurich, September 6-12, 2014
Friday, September 12, 2014, full day workshop: Transferring and Adapting Source Knowledge (TASK) in Computer Vision
Workshop Organizers: Antonio M. Lopez (Computer Vision Center and Universitat Autònoma de Barcelona), Kate Saenko (University of Massachusetts Lowell), Francesco Orabona (Toyota Technological Institute Chicago), José Antonio Rodríguez (Xerox Research Europe), David Vázquez (Computer Vision Center), Sebastian Ramos (Computer Vision Center and Universitat Autònoma de Barcelona), Jiaolong Xu (Computer Vision Center and Universitat Autònoma de Barcelona)
Publication: Part of Speech Tagging for French Social Media Data
Authors: Farhad Nooralahzadeh, Caroline Brun, Claude Roux
Publication: New Algorithms for Parking Demand Management and a City Scale Deployment
Authors: Onno Zoeter, Chris Dance, Stéphane Clinchant, Jean-Marc Andreoli
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Xerox Research Centre Europe (XRCE) is a young, dynamic research organization, which creates innovative technologies to support growth in Xerox business process outsourcing and document management services businesses.
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