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See detailEMN Synthesis Report on Children on Migration
Sommarribas, Adolfo UL

Presentation (2021, January 28)

This presentation maps the key findings of the progress made by Member States in the implementation of the recommended actions laid down in the 2017 Commission Communication on the protection of children ... [more ▼]

This presentation maps the key findings of the progress made by Member States in the implementation of the recommended actions laid down in the 2017 Commission Communication on the protection of children in migration, with a view to further understanding progress made in the implementation of the Communication's recommendations. [less ▲]

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See detailEMN Synthesis Report on Children on Migration
Sommarribas, Adolfo UL

Presentation (2021, January 28)

This presentation presents the key findings of the progress made by Member States in the implementation of the recommended actions laid down in the 2017 Commission Communication on the protection of ... [more ▼]

This presentation presents the key findings of the progress made by Member States in the implementation of the recommended actions laid down in the 2017 Commission Communication on the protection of children in migration, with a view to further understanding progress made in the implementation of the Communication's recommendations based on the EMN Synthesis report on Children on migration. [less ▲]

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See detailLe développement du numérique nous rend-il de plus en plus proches ?
Schafer, Valerie UL

Conference given outside the academic context (2021)

Préprogramme Traduction simultanée en français et en hongrois Jeudi 28 Janvier 2021 – EN LIGNE 17h00 – 17h20 Ouverture : Anna Sándor, Journaliste à nőklapja.hu et à HVG.hu 17h20 – 18h00 Table ronde : Le ... [more ▼]

Préprogramme Traduction simultanée en français et en hongrois Jeudi 28 Janvier 2021 – EN LIGNE 17h00 – 17h20 Ouverture : Anna Sándor, Journaliste à nőklapja.hu et à HVG.hu 17h20 – 18h00 Table ronde : Le développement du numérique nous rend-il de plus en plus proches ? Modération réalisée par Anna Sándor, ancienne journaliste à nőklapja.hu et à HVG.hu Participants : Ágnes Zsila, chercheur à l’Institut de Biologie de l’Université ELTE TTK ; (Chercheuse en psychologie, en théorie des jeux, impact des nouvelles technologies en particulier sur les jeunes) György Csepeli, sociologue, professeur émérite (ELTE) chercheur (FTI-iASK) ; (Chercheur en sociologie et psychologie sociale, ancien sous-secrétaire d’Etat hongrois à l’information) Valérie Schafer, Historienne et Professeure d’histoire contemporaine européenne, Université du Luxembourg 18h00 – 18h25 Questions et réponses 18h25 – 18h30 Conclusions [less ▲]

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See detailArtificial Intelligence and Sentencing in Criminal Justice
Allegrezza, Silvia UL

Scientific Conference (2021, January 27)

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See detailCultural differences and immigrants' wages
Raux, Morgan UL

E-print/Working paper (2021)

In this paper, I investigate how cultural differences affect the labor-market performance of immigrant workers in Germany. I document a negative relationship between hourly wages and the cultural distance ... [more ▼]

In this paper, I investigate how cultural differences affect the labor-market performance of immigrant workers in Germany. I document a negative relationship between hourly wages and the cultural distance between immigrants' countries of origin and Germany. This result is robust across the three main indicators used in the gravity literature: linguistic, religious, and genetic distances. This cultural wage penalty disappears after five to ten years spent in Germany. Controlling for language proficiency as well as for selective in- and out-migration, these results highlight the cultural integration of immigrant workers. I finally provide evidence suggesting that lower wage progression may be explained by fewer job-to-job transitions. [less ▲]

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See detailscala-tptp-parser
Steen, Alexander UL

Software (2021)

scala-tptp-parser is a library for parsing the input languages of the TPTP infrastructure. The package contains a data structure for the abstract syntax tree (AST) of the parsed input as well as the ... [more ▼]

scala-tptp-parser is a library for parsing the input languages of the TPTP infrastructure. The package contains a data structure for the abstract syntax tree (AST) of the parsed input as well as the parser for the different language of the TPTP, see http://tptp.org for details. In particular, the parser supports: - THF (TH0/TH1): Monomorphic and polymorphic higher-order logic, - TFF (TF0/TF1): Monomorphic and polymorphic typed first-order logic, - FOF: Untyped first-order logic, - CNF: (Untyped) clause-normal form, and - TPI: TPTP Process Instruction language. [less ▲]

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Peer Reviewed
See detailDiagnostik von Lernstörungen im luxemburgischen Grundschulsystem
Fischer, Jessica UL; Pit-Ten Cate, Ineke UL

in Ugen, Sonja; Schiltz, Christine; Fischbach, Antoine (Eds.) et al Lernstörungen im multilingualen Kontext: Diagnose und Hilfestellungen (2021)

Detailed reference viewed: 117 (3 UL)
Peer Reviewed
See detailFallbeispiele
Fischer, Jessica UL; Pit-Ten Cate, Ineke UL

in Ugen, Sonja; Schiltz, Christine; Fischbach, Antoine (Eds.) et al Lernstörungen im multilingualen Kontext: Diagnose und Hilfestellungen (2021)

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See detailEinleitung: Lernstörungen im multilingualen Kontext – Eine Herausforderung
Ugen, Sonja UL; Schiltz, Christine UL; Fischbach, Antoine UL et al

in Ugen, Sonja; Schiltz, Christine; Fischbach, Antoine (Eds.) et al Lernstörungen im multilingualen Kontext: Diagnose und Hilfestellungen (2021)

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See detailLernstörungen im multilingualen Kontext: Diagnose und Hilfestellungen.
Ugen, Sonja UL; Schiltz, Christine UL; Fischbach, Antoine UL et al

Book published by Melusina Press (2021)

Um Kinder mit einer Lernstörung durch möglichst angepasste Hilfsmaßnahmen unterstützen zu können, ist eine umfassende Diagnostik maßgeblich. Die Diagnostik von Lernstörungen stellt vor allem in ... [more ▼]

Um Kinder mit einer Lernstörung durch möglichst angepasste Hilfsmaßnahmen unterstützen zu können, ist eine umfassende Diagnostik maßgeblich. Die Diagnostik von Lernstörungen stellt vor allem in multilingualen Kontexten - wie in Luxemburg - eine Herausforderung dar. Auch werden derzeit vorwiegend im Ausland entwickelte diagnostische Tests durchgeführt, welche die luxemburgischen Besonderheiten, wie etwa das Erlernen der schriftsprachlichen und mathematischen Kompetenzen in einer Zweit- oder Drittsprache, nicht berücksichtigen. Ausgehend vom aktuellen Forschungs- und Wissensstand wird ein vertieftes Verständnis im Hinblick auf Lese- und Rechtschreibstörungen und Rechenstörungen dargelegt. Darauf aufbauend werden diagnostische Vorgehensweisen sowie pädagogische Hilfsmaßnahmen mithilfe von Erfahrungswerten praktizierender Fachkräfte aus dem luxemburgischen Förderbereich vorgestellt. [less ▲]

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See detailDifferenzialdiagnose und weitere Aspekte
Wollschläger, Rachel UL; Muller, Claire UL; Pit-Ten Cate, Ineke UL

in Ugen, Sonja; Schiltz, Christine; Fischbach, Antoine (Eds.) et al Lernstörungen im multilingualen Kontext: Diagnose und Hilfestellungen (2021)

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Peer Reviewed
See detailZero-Rating ist nicht „netzneutral”
Cole, Mark David UL

in Neue Juristische Wochenschrift (2021), 74(4), 208-210

Nach der erheblichen politischen Diskussion vor Verabschiedung der sogenannten Netzneutralitäts-Verordnung der EU (NN-VO)1 und der seither leiser gewordenen Beschäftigung mit diesem ... [more ▼]

Nach der erheblichen politischen Diskussion vor Verabschiedung der sogenannten Netzneutralitäts-Verordnung der EU (NN-VO)1 und der seither leiser gewordenen Beschäftigung mit diesem telekommunikationsrechtlichen Regelungswerk hat der EuGH mit dem ersten Urteil zur NN-VO diese wieder ins Rampenlicht geholt. [less ▲]

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See detailA Robustness Check to Multiple Overlapping Deprivation Analysis (MODA) Methodology: The Case of Nigeria
Fagbeja, Teju; Cebotari, Victor UL

E-print/Working paper (2021)

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See detailVirtual Verification of Cause-Effect Chains in Automotive Cyber-Physical Systems
Gonzalez de Oliveira, Ricardo UL; Raghupatruni, Indrasen; Hamman, Arne et al

in 21. Internationales Stuttgarter Symposium (2021, January 25)

The technical complexity of automotive Cyber-Physical Systems (CPS) traditionally demands high development and validation efforts. Due to the new technologies entering the automotive market, such as ... [more ▼]

The technical complexity of automotive Cyber-Physical Systems (CPS) traditionally demands high development and validation efforts. Due to the new technologies entering the automotive market, such as Highly Automated Driving (HAD) (>= SAE L3) and connected infotainment, the overall system complexity is currently increasing significantly, challenging traditional system development methods and requiring new approaches for validation and verification (V&V). In parallel, new Electric/Electronic (E/E) architecture patterns are emerging in the automotive industry, distributing the functionalities across several multi-core Electrical Control Units (ECU) connected via Ethernet-based in-vehicle networks. This distributed approach leads to complex inter- and intra-ECU timing relations challenging the concept of freedom from interference according to the ISO 26262, and adding another dimension of effects analysis during V&V. This work enhances a cyber-physical functional simulation tool to include timing effects in distributed cause-effect chains and multi-technology-communication networks (incl. Ethernet and CAN). The resulting simulation allows the system designer to evaluate the impact of timing properties on a given distributed vehicle function, enabling an early validation of the system, avoiding rework during later stages of the development process resulting from wrong design choices. [less ▲]

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See detailEnergy-Efficient Hybrid Symbol-Level Precoding via Phase Shifter Selection in mmWave MU-MIMO Systems
Haqiqatnejad, Alireza UL; Kayhan, Farbod UL; Ottersten, Björn UL

in Energy-Efficient Hybrid Symbol-Level Precoding via Phase Shifter Selection in mmWave MU-MIMO Systems (2021, January 25)

We address the symbol-level precoding design problem for the downlink of a multiuser millimeter wave (mmWave) multiple-input multiple-output wireless system. We consider a hybrid analog-digital ... [more ▼]

We address the symbol-level precoding design problem for the downlink of a multiuser millimeter wave (mmWave) multiple-input multiple-output wireless system. We consider a hybrid analog-digital architecture with phase shifter selection where a small-sized baseband precoder is followed by two successive networks of analog on-off switches and variable phase shifters according to a fully-connected structure. We jointly optimize the digital baseband precoder and the states of the switching network on a symbol-level basis, i.e., by exploiting both the channel state information (CSI) and the instantaneous data symbols, while the phase-shifting network is designed only based on the CSI. Our approach to this joint optimization is to minimize the Euclidean distance between the optimal fully-digital and the hybrid symbol-level precoders. It is shown via numerical results that using the proposed approach, up to 50 percent of the phase shifters can be switched off on average, allowing for reductions in the power consumption of the phase-shifting network. Adopting appropriate power consumption models for the analog precoder, our energy efficiency analysis further shows that this power reduction can substantially improve the energy efficiency of the hybrid precoding compared to the fully-digital and the state-of-the-art schemes. [less ▲]

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See detailEstimating worldwide effects of non‐pharmaceutical interventions on COVID‐19 incidence and population mobility patterns using a multiple‐event study
Askitas, Nikolaos; Tatsiramos, Konstantinos UL; Verheyden, Bertrand

in Scientific Reports (2021), 11(1972 (2021)), 1-13

Various non‐pharmaceutical interventions were adopted by countries worldwide in the fight against the COVID‐19 pandemic with adverse socioeconomic side effects, which raises the question about their ... [more ▼]

Various non‐pharmaceutical interventions were adopted by countries worldwide in the fight against the COVID‐19 pandemic with adverse socioeconomic side effects, which raises the question about their differential effectiveness. We estimate the average dynamic effect of each intervention on the incidence of COVID‐19 and on people’s whereabouts by developing a statistical model that accounts for the contemporaneous adoption of multiple interventions. Using daily data from 175 countries, we show that, even after controlling for other concurrent lockdown policies, cancelling public events, imposing restrictions on private gatherings and closing schools and workplaces had significant effects on reducing COVID‐19 infections. Restrictions on internal movement and public transport had no effects because the aforementioned policies, imposed earlier on average, had already de facto reduced human mobility. International travel restrictions, although imposed early, had a short‐lived effect failing to prevent the epidemic from turning into a pandemic because they were less stringent. We interpret the impact of each intervention on containing the pandemic using a conceptual framework which relies on their effects on human mobility behaviors in a manner consistent with time‐use and epidemiological factors. [less ▲]

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See detailDevelopment of New Concrete Mixes from Recycled Aggregates from known resources
Chewe, Ngapeya; Waldmann, Daniele UL

Presentation (2021, January 20)

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See detailHybrid automatic repeat request‐based intelligent reflecting surface‐assisted communication system
Ai, Yun; Mohamed, M.; Kong, Long UL et al

in Electronics Letters (2021)

The intelligent reflecting surface (IRS) is an emerging technique to extend wireless coverage. In this letter, the performance of the hybrid automatic repeat request (hybrid ARQ) for an IRS‐assisted ... [more ▼]

The intelligent reflecting surface (IRS) is an emerging technique to extend wireless coverage. In this letter, the performance of the hybrid automatic repeat request (hybrid ARQ) for an IRS‐assisted system is analysed. More specifically, the outage performance of the IRS‐aided system using hybrid ARQ protocol with chase combining is studied. The asymptotic analysis also shows that the outage performance is better and improves linearly by increasing the number of reflectors of the IRS‐aided system. The results also verify the potential of combining the ARQ scheme in the link layer of the IRS‐aided system and demonstrate that a very small change of path loss condition can impact the performance largely. [less ▲]

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See detailRobust Multidimensional Pricing: Separation without Regret
Kocyigit, Cagil UL; Rujeerapaiboon, Napat; Kuhn, Daniel

in Mathematical Programming (2021)

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See detailCompletion Time Minimization in NOMA Systems:Learning for Combinatorial Optimization
Wang, Anyue UL; Lei, Lei UL; Lagunas, Eva UL et al

in IEEE Networking Letters (2021)

In this letter, we study a completion-time minimization problem by jointly optimizing time slots (TSs) and power allocation for time-critical non-orthogonal multiple access (NOMA) systems. The original ... [more ▼]

In this letter, we study a completion-time minimization problem by jointly optimizing time slots (TSs) and power allocation for time-critical non-orthogonal multiple access (NOMA) systems. The original problem is non-linear/non-convex with discrete variables, leading to high computational complexity in conventional iterative methods. Towards an efficient solution, we train deep neural networks to perform fast and high-accuracy predictions to tackle the difficult combinatorial parts, i.e., determining the minimum consumed TSs and user-TS allocation. Based on the learning-based predictions, we develop a low-complexity post-process procedure to provide feasible power allocation. The numerical results demonstrate promising improvements of the proposed scheme compared to other baseline schemes in terms of computational efficiency, approximating optimum, and feasibility guarantee. [less ▲]

Detailed reference viewed: 31 (6 UL)