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See detailModerator of the Session 'Politics'
Venken, Machteld UL

Scientific Conference (2020, June 19)

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See detailThe adaptation of MAIN to Luxembourgish
Weth, Constanze UL; Wealer, Cyril UL

in ZAS Papers in Linguistics (2020), 64

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See detailAutonomous model-based assessment of mechanical failures of reconfigurable modular robots with a Conjugate Gradient solver
Hołobut, Paweł; Lengiewicz, Jakub UL; Bordas, Stéphane UL

in 2020 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) (2020)

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See detailA boundary-enhanced supervoxel method for extraction of road edges in MLS point clouds
Sha, Zhengchuan; Chen, Yiping; Li, Wen et al

in A boundary-enhanced supervoxel method for extraction of road edges in MLS point clouds (2020)

Road extraction plays a significant role in production of high definition maps (HD maps). This paper presents a novel boundary-enhanced supervoxel segmentation method for extracting road edge contours ... [more ▼]

Road extraction plays a significant role in production of high definition maps (HD maps). This paper presents a novel boundary-enhanced supervoxel segmentation method for extracting road edge contours from MLS point clouds. The proposed method first leverages normal feature judgment to obtain 3D point clouds global geometric information, then clusters points according to an existing method with global geometric information to enhance the boundaries. Finally, it utilizes the neighbor spatial distance metric to extract the contours and drop out existing outliers. The proposed method is tested on two datasets acquired by a RIEGL VMX-450 MLS system that contain the major point cloud scenes with different types of road boundaries. The experimental results demonstrate that the proposed method provides a promising solution for extracting contours efficiently and completely. Results show that the precision values are 1.5 times higher and approximately equal than the other two existing methods when the recall value is 0 for both tested two road datasets. [less ▲]

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See detailPenser l’impensable. Le droit de vote des étrangers aux élections nationales dans le contexte multinational du Luxembourg et dans le contexte fédéral de l’Union européenne
Heuschling, Luc UL

in XIIème séminaire franco-japonais de droit public, Université d'Hiroshima 15-17 mars 2018 (2020)

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See detailSchools & Teachers. The Education of an Architect in Europe
Van Gerrewey, Christophe; Peleman, David UL; Decroos, Bart

in OASE Journal for Architecture (2019), (#102), 1-9

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See detailKestenberg Conference. Book of Abstracts
Buzás, Zsuzsa; Sagrillo, Damien François UL; Devosa, Iván et al

Book published by John von Neumann University (2017)

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See detailGeoGebraTAO, validation of an adaptive learning environment of dynamic geometry. Source of a differentiation individual pathway of the student?
Dording, Carole; Martin, Romain; Kreis, Yves UL et al

Scientific Conference (2016, July 26)

In this PhD project, about 250 Luxembourgish children of 10-12 years explore elementary geometric concepts in a sequence of learning activities, created with the dynamic mathematics system GeoGebra ... [more ▼]

In this PhD project, about 250 Luxembourgish children of 10-12 years explore elementary geometric concepts in a sequence of learning activities, created with the dynamic mathematics system GeoGebra integrated into the computer-assisted testing framework TAO. The children, who are active in their learning process, are allowed to build new knowledge in an autonomous way and at their own pace. By means of a snapshot of the stimulus containing useful, easily exploitable data, the computer, a diagnostic tool of the competencies of the children in geometry, interprets the answer offered by the child, and based on this answer, gives relaunch instruction to go off to further explore the concepts. So children with special needs are identified and a differentiation individual pathway is inferred through scaffolding or feedback practices. Comparing the obtained results of a pretest and a posttest will allow us to assess the gained knowledge of the children. [less ▲]

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See detailDynamische Mathematik in der Grundschule
Kreis, Yves UL

Presentation (2016, June 28)

Dynamische Mathematik wird seit Jahren erfolgreich in der Sekundarstufe eingesetzt. So erlaubt Dynamische Geometrie Software (DGS) das Erkunden geometrischer Beziehungen, Computer Algebra Systeme (CAS ... [more ▼]

Dynamische Mathematik wird seit Jahren erfolgreich in der Sekundarstufe eingesetzt. So erlaubt Dynamische Geometrie Software (DGS) das Erkunden geometrischer Beziehungen, Computer Algebra Systeme (CAS) ermöglichen die Analyse von Funktionen, Tabellenkalkulation gestattet Experimente mit Folgen, usw. Ist dies auch bei jüngeren Kindern denkbar? In der Grundschule ist einerseits ein enaktiver Zugang zu neuem Wissen unabdingbar. Dieser kann jedoch auch (teilweise) virtuell am Computer erfolgen. Andererseits begünstigt ein entdeckender, problemorientierter Unterricht die eigenständige Begriffsbildung der Kinder. Auch solche reichhaltigen Aufgabenstellungen können den Kindern am Computer angeboten werden. Es spricht demnach nichts gegen dynamische Mathematik in der Grundschule. Die didaktischen Möglichkeiten gehen sogar weit über jene eines traditionellen Unterrichts hinaus. Exemplarisch wird anhand von konkreten Beispielen gezeigt, dass dynamische Mathematik bereits in der Grundschule Vorgehensweisen erlaubt, die anders nicht denkbar sind. Zudem wird erläutert, welche theoretischen Konzepte als Basis für dessen Entwicklung dienen. [less ▲]

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See detailGeoGebraTAO - eine dynamische Software für ein niveauangemessenes selbstständiges Arbeiten in Geometrie?
Dording, Carole; Martin, Romain; Kreis, Yves UL et al

Scientific Conference (2016, March 08)

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See detailDie personalisierte und mehrsprachige mathematische Lernumgebung MathemaTIC
Kreis, Yves UL; Kafai-Afif, Amina; Haas, Ben et al

Scientific Conference (2016, March 08)

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See detailMathemaTIC
Kreis, Yves UL; Bertemes, Joseph; Kafai-Afif, Amina et al

Scientific Conference (2015, November 25)

The personlized and multilingual mathematical learning environment MathemaTIC is one of the flagship projects of the Digital (4) Education strategy of the Luxemburgish Ministry of National Education ... [more ▼]

The personlized and multilingual mathematical learning environment MathemaTIC is one of the flagship projects of the Digital (4) Education strategy of the Luxemburgish Ministry of National Education, Children and Youth incorporated in the concept Digital Luxembourg of the Luxemburgish government. It is based on the national curriculum, allows different pedagogical objectives (differentiation, individualization, remidiation and certification) and offers 4 languages (German, French, Portuguese and English) to the user. The development is done in partnership with the teachers who can follow in real-time the learning progress of their students working in class or autonomously at home. During the workshop the (unexperienced) participants will - after a brief presentation - explore the environment, discuss the different pedagogical objectives and usage scenarios this tool offers for teaching and learning mathematics. [less ▲]

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See detailGeoGebraTAO, validation of an Adaptive Learning Environment of dynamic geometry. Source of a differentiation individual pathway of the student?
Dording, Carole; Martin, Romain; Kreis, Yves UL et al

Poster (2015, November 24)

In this PhD project, about 250 luxembourgish children of 10-12 years explore elementary geometric concepts in a sequence of learning activities, created with the dynamic mathematics system GeoGebra ... [more ▼]

In this PhD project, about 250 luxembourgish children of 10-12 years explore elementary geometric concepts in a sequence of learning activities, created with the dynamic mathematics system GeoGebra integrated into the computer-assisted testing framework TAO. The children, who are active in their learning process, are allowed to build new knowledge in an autonomous way and at their own pace. By means of a snapshot of the stimulus containing useful, easily exploitable data, the computer, a diagnostic tool of the competencies of the children in geometry, interprets the answer offered by the child, and based on this answer, gives relaunch instructions to go off to further explore the concepts. So children with special needs are identified and a differentiation individual pathway is inferred through scaffolding or feedback practices. Comparing the obtained results of a pretest and a posttest will allow us to assess the gained knowledge of the children. [less ▲]

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See detailEntdeckendes Lernen im Mathematikunterricht der Grundschule: Natürliche Zahlen
Kreis, Yves UL

Book published by University of Luxembourg - 3. Aufl. (2012)

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See detailGeoGebra(Mobile) and TAO 2.0: Unleashing the power of assessment in geometry
Kreis, Yves UL; Jadoul, Raynald

Scientific Conference (2011, March 30)

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See detailEntdeckendes Lernen im Mathematikunterricht der Grundschule: Geometrie
Kreis, Yves UL

Book published by University of Luxembourg - 2. Aufl. (2011)

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See detaili2g Common File Format Final Version
Egido, Santiago; Hendriks, Maxim; Kreis, Yves UL et al

Report (2010)

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See detailTechnical Aspects of Intergeo
Kreis, Yves UL; Kortenkamp, Ulrich

Scientific Conference (2010, July 02)

• Formal Descriptions of Constructions, Exercises and other Digital Content in Mathematics • Data Exchange in Mathematics and Mathematics Education • Comparison of Interactive Geometry Tools • Mathematics ... [more ▼]

• Formal Descriptions of Constructions, Exercises and other Digital Content in Mathematics • Data Exchange in Mathematics and Mathematics Education • Comparison of Interactive Geometry Tools • Mathematics Education and Social Networks/Web 2.0 • Integration of Digital Content in the Classroom • Innovative Uses of ICT in Teaching Mathematics [less ▲]

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See detailDynamic mathematics and computer-assisted testing: GeoGebra inside TAO
Kreis, Yves UL; Dording, Carole; Porro, Vincent et al

in Kortenkamp, Ulrich; Pech, Pavel; Dohrmann, Christian (Eds.) et al Proceedings of the Interoperable Interactive Geometry Conference 2010 (2010)

In this article we present the integration of the dynamic mathematics system GeoGebra into the computer-assisted testing framework TAO. One chapter is dedicated to the explanations of the tools involved ... [more ▼]

In this article we present the integration of the dynamic mathematics system GeoGebra into the computer-assisted testing framework TAO. One chapter is dedicated to the explanations of the tools involved as well as their communication. Another one focuses on a small-scale test, explaining the building of such a test, describing its realization as well as the constraints met and reporting on the collected data as well as its possible usage. [less ▲]

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See detailKonstruktionsbeschreibungen und DGS
Kortenkamp, Ulrich; Kreis, Yves UL

in Lindmeier, Anke M.; Ufer, Stefan (Eds.) Beiträge zum Mathematikunterricht 2010 (2010)

Die Fähigkeit zur Formalisierung von Konstruktionsbeschreibungen ist ein Ziel im Mathematikunter-richt. Oft mangelt es Schülerinnen und Schülern an der notwendigen Strenge. Dabei ist unklar, wie genau ... [more ▼]

Die Fähigkeit zur Formalisierung von Konstruktionsbeschreibungen ist ein Ziel im Mathematikunter-richt. Oft mangelt es Schülerinnen und Schülern an der notwendigen Strenge. Dabei ist unklar, wie genau eigentlich eine solche Beschreibung sein muss. Aus der Entwicklung eines gemeinsamen Dateiformates für DGS heraus stammt eine Betrachtungs-weise, die die mathematische Beschreibung von Konstruktionen vereinfacht. Eine klare Trennung von Objekten und ihren Beziehungen zueinander hilft nicht nur dem Computer, sondern sowohl Lehrper-sonen als auch Lernenden, den Kerngedanken einer Konstruktion zu verstehen. Dies hat nicht nur Einfluss auf die Verschriftlichung von Konstruktionen, sondern auch auf den Umgang mit DGS all-gemein (Konstruktionsreihenfolge, Umkehrung von Konstruktionen, freie/abhängige Elemente). Wir stellen zudem vor, wie das neue i2g-Format, welches im Intergeo-Projekt (http://i2geo.net) entwi-ckelt wurde, den Datenaustausch zwischen verschiedenen Geometrie-Programmen ermöglicht (hier: GeoGebra und Cinderella). [less ▲]

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