References of "2020"
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See detailA cascading Kalman filtering framework for real-time urban network flow estimation
Rinaldi, Marco UL; Viti, Francesco UL

in 2020 IEEE 23rd International Conference on Intelligent Transportation Systems (ITSC) (2020, December)

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See detailVisions for the future, vocational training and special aspects esp. family violence
Gomez Bravo, Raquel UL

in Book of abstracts (2020, December)

Family violence is a global public health problem, which constitutes a violation of human rights and is considered a hidden epidemic. Family violence (also named domestic violence, domestic abuse or ... [more ▼]

Family violence is a global public health problem, which constitutes a violation of human rights and is considered a hidden epidemic. Family violence (also named domestic violence, domestic abuse or battering) includes intimate partner violence, child abuse/neglect and elder abuse, among others and can take many forms: physicial, emotional, verbal, sexual, physchological, etc. Its consequences involve serious damage to the physical, mental and social well-being of individuals and families. Primary health care professionals may be the first or only point of contact for victims who may be hesitant or unable to seek other sources of assistance. These professionals are in the unique position to offer a safe and confidential environment to facilitate disclosure of violence, and provide appropriate support and referral to other resources and services. Evidence shows that abused women use health care services more than non-abused women, and identify health care professionals as those who they would trust the most with disclosing an abuse. Yet, they tend not to disclose abuse unless specifically asked. Therein lies a problem: most of the practicing physicians have received either no or insufficient education or training in any aspect of family or gender violence. The scope of the problem is alarming: WHO indicates that about 1 in 3 (35%) of women worldwide have experienced either physical and/or sexual violence by intimate partner or non-partner violence in their lifetime. However, experts know that rates of all forms of family violence are underestimated. Why are we not prepared to face an epidemic like this? What are the reasons behind this lack of knowledge and barriers to take action? How can we, health care professionals in the frontline, assume our roles and responsibilities to provide the best care possible to victims, families and perpetrators? [less ▲]

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See detailSpecial Issue: The Dissolution of the Austro-Hungarian Monarchy: Border Making and its Consequences.
Venken, Machteld UL; Bo Frandsen, Steen

in European Review of History (2020), 27(6),

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See detailRoad to effective data curation for translational research
Gu, Wei UL; Hasan, Samiul; Rocca-Serra, Philippe et al

in Drug Discovery Today (2020)

Translational research today is data-intensive and requires multi-stakeholder collaborations to generate and pool data together for integrated analysis. This leads to the challenge of harmonization of ... [more ▼]

Translational research today is data-intensive and requires multi-stakeholder collaborations to generate and pool data together for integrated analysis. This leads to the challenge of harmonization of data from different sources with different formats and standards, which is often overlooked during project planning and thus becomes a bottleneck of the research progress. We report on our experience and lessons learnt about data curation for translational research garnered over the course of the eTRIKS program (https://www.etriks.org), a unique, 5-year, cross-organizational, cross-cultural collaboration project funded by the Innovative Medicines Initiative of the EU. Here, we discuss the obstacles and suggest what steps are needed for effective data curation in translational research, especially for projects involving multiple organizations from academia and industry. [less ▲]

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See detailEFF (economics department) seminar in Groeningen
Sándor, László UL

Speeches/Talks (2020)

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See detailState Aggregation for Multiagent Communication over Rate-Limited Channels
Mostaani, Arsham UL; Vu, Thang Xuan UL; Chatzinotas, Symeon UL et al

in State Aggregation for Multiagent Communication over Rate-Limited Channels (2020, December)

A collaborative task is assigned to a multiagent system (MAS) in which agents are allowed to communicate. The MAS runs over an underlying Markov decision process and its task is to maximize the averaged ... [more ▼]

A collaborative task is assigned to a multiagent system (MAS) in which agents are allowed to communicate. The MAS runs over an underlying Markov decision process and its task is to maximize the averaged sum of discounted one-stage rewards. Although knowing the global state of the environment is necessary for the optimal action selection of the MAS, agents are limited to individual observations. The inter-agent communication can tackle the issue of local observability, however, the limited rate of the inter-agent communication prevents the agent from acquiring the precise global state information. To overcome this challenge, agents need to communicate their observations in a compact way such that the MAS compromises the minimum possible sum of rewards. We show that this problem is equivalent to a form of rate-distortion problem which we call the task-based information compression. State Aggregation for Information Compression (SAIC) is introduced here to perform the task-based information compression. The SAIC is shown, conditionally, to be capable of achieving the optimal performance in terms of the attained sum of discounted rewards. The proposed algorithm is applied to a rendezvous problem and its performance is compared with two benchmarks; (i) conventional source coding algorithms and the (ii) centralized multiagent control using reinforcement learning. Numerical experiments confirm the superiority and fast convergence of the proposed SAIC. [less ▲]

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See detailEdge Computing: An Overview of Framework and Applications
Krishnasamy, Ezhilmathi UL; Varrette, Sébastien UL; Mucciardi, Michael

Report (2020)

This report gives an overview of the Edge Computing paradigm and its applications. Indeed, with the advent of the Internet of Things (IoT) era, many electronic devices and sensors produce a vast volume of ... [more ▼]

This report gives an overview of the Edge Computing paradigm and its applications. Indeed, with the advent of the Internet of Things (IoT) era, many electronic devices and sensors produce a vast volume of data which should be processed in a timely manner and this novel computing model is nowadays seen as a pertinent answer to this open challenge. This report thus explains why Edge Computing is needed and how the edge architecture is typically structured. It further presents the technologies that help this cutting-edge model to function properly. Since Edge Computing involves a heterogeneous architecture, it requires to adapt to a few technological recommendations for optimal performance. In this context, this report reviews the latest hardware technology trends tied to Edge Computing developments and points out technical challenges implementing this innovative computing model. In particular, we analyse how High-Performance Computing and CloudComputing infrastructures can be efficiently organised to design an Edge Computing-based framework able to tackle cutting-edge issues solved by Artificial Intelligence techniques. Finally, this report presents selected real-world applications of the Edge Computing paradigm across multiple domains affecting our daily life, i.e., healthcare, smart city and grids, industry 4.0 and public safety [less ▲]

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See detailPrivacy-Preserving Logistic Regression as a Cloud Service Based on Residue Number System
Cortés-Mendoza, Jorge; Tchernykh, Andrei; Babenko, Mikhail et al

in Voevodin, Vladimir; Sobolev, Sergey (Eds.) 6th Russian Supercomputing Days, Moscow 21-22 September 2020 (2020, December)

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See detailFrontières liquides : l’eau dans les romans de la terre au Luxembourg
Thiltges, Sébastian UL

in Thiltges, Sébastian; Solte-Gresser, Christiane (Eds.) Ecologie culturelle et cultures écologiques dans la Grande Région (2020, December)

While the earth usually represents the element in which cultural attachment is rooted, water on the contrary reveals what exceeds or interpenetrates the land. The liquid element is as ambiguous as it is ... [more ▼]

While the earth usually represents the element in which cultural attachment is rooted, water on the contrary reveals what exceeds or interpenetrates the land. The liquid element is as ambiguous as it is proteiform: vital and destructive at the same time, it sometimes is a figure of liberation, sometimes of tragic dissolution. In a corpus of Luxembourgish novels from the early 20th century, this paper will analyse the depictions of water, mostly in its opposition with the soil, in order to question the meaning of the liquid element in a context where, corollary to social, economic and political changes, the earth is generally dominant in discourse and imagination. If nature has mostly been confined to the local and cultural landscape, an eco-material reading highlights on the contrary a global and crossborder dimension inherent to nature, but also to culture, disregarding the map-drawn boundaries that define the individual and the collective. Finally, a sensitive, anthropoetical reading also challenges historical, contextual and fictional frames. The materiality of the liquid element is not just a metaphor: it shapes natural, as well as textual environments. [less ▲]

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See detailPrésences et déplacements des souverains de la Francie médiane de 843 à 869: Contribution à l'étude de l'espace politique de Lothaire Ier et Lothaire II
Pettiau, Hérold UL

in Pettinger, Maxime (Ed.) D'un regnum à l'autre. La Lotharingie, un espace de l'entre-deux? Von Regnum hum Imperium. Lotharingien als Zwischenreich? (2020, December)

This contribution is devoted to the analysis of the movements made by Emperor Lothar I and his son, King Lothar II, by proposing to distinguish between three types of movement: movements at the beginning ... [more ▼]

This contribution is devoted to the analysis of the movements made by Emperor Lothar I and his son, King Lothar II, by proposing to distinguish between three types of movement: movements at the beginning of the reign, "usual" movements during the reign and movements that would be described as "punctual", of a pendular type. The importance and nature of multilateral meetings between sovereigns is taken into account. This comparison highlights a certain permanence in the use of a stable palatial zone by the two sovereigns, between the Meuse and Eifel on the one hand and a Moselle axis from Thionville to Remiremont on the other, but also, beyond the variety of contexts, similarities in the more exceptional movements, which remain largely concentrated in the Francia media area, a part that fell to Lothaire after the Treaty of Verdun. [less ▲]

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See detailIsolating the incapacitative effect of social distancing on crime: Evidence from Ecuador’s Covid-19 lockdown
Mahe, Clotilde UL; Parra-Cely, Sergio

E-print/Working paper (2020)

Identifying the impact of incapacitation measures on crime, such as imprisonment or curfews, is challenging since any such intervention simultaneously dissuades from engaging in illegal behaviour. We ... [more ▼]

Identifying the impact of incapacitation measures on crime, such as imprisonment or curfews, is challenging since any such intervention simultaneously dissuades from engaging in illegal behaviour. We exploit Covid-19 confinement measures as a quasi-experiment to isolate incapacitative from deterrent effects of mobility restrictions in a developing country, Ecuador. Difference-in-differences and event-study estimates show a significant reduction in violent and property crime, relative to comparable months in pandemic-free years. While the fall in violent crime is driven by rape cases, we observe no cross-crime substitution for property crime. Heterogeneity effect analysis indicates that the composite decline in violent crime is entirely attributed to incapacitation. In contrast, the drop in property crime is attenuated in provinces where the economic activity mainly relies on essential sectors and blue-collar occupations, leaving incapacitation to explain 40 to 50% of the composite decrease. [less ▲]

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See detailDevelopment and Validation of the Revised Multicultural Ideology Scale in Germany and Luxembourg
Stogianni, Maria UL; Berry, John; Grigoryev, Dmitry et al

E-print/Working paper (2020)

A revised version of the Multicultural Ideology Scale (rMCI; Berry 2020; Berry et al., 1977) is currently being developed to measure endorsement of multiculturalism in different cultural contexts. The ... [more ▼]

A revised version of the Multicultural Ideology Scale (rMCI; Berry 2020; Berry et al., 1977) is currently being developed to measure endorsement of multiculturalism in different cultural contexts. The current study, which is part of this cross-cultural research project, presents the first assessment of the rMCI scale in the German language. The measure aims to cover several attitudinal dimensions of multiculturalism, relevant to the integration of different ethnocultural groups: Cultural Maintenance, Equity/Inclusion, Social interaction, Essentialistic Boundaries, Extent of Differences, and Consequences of Diversity. Two independent datasets were acquired from Germany (N = 382) and Luxembourg (N = 148) to estimate the factor structure of the rMCI using different confirmatory factor analysis techniques. The findings suggest that a 4-factor solution, including Cultural Maintenance, Equity/Inclusion, Social interaction, and Consequences of Diversity, was the best fit for the data. Most of these subscales demonstrated adequate psychometric properties (internal consistency, convergent, and discriminant validity). The 4-factor model of the rMCI was partially invariant across the two ethnic groups and full measurement invariance was established across gender. [less ▲]

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See detail« À nos braves » : les monuments aux légionnaires luxembourgeois entre conflit et réconciliation
Camarda, Sandra UL

in Camarda, Sandra; Sauer, Arnaud; Scuto, Denis (Eds.) et al Légionnaires : Parcours de Guerre et de Migrations entre le Luxembourg et la France (2020)

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See detailAn exploratory approach for an oriented development of an untargeted hydrophilic interaction liquid chromatography-mass spectrometry platform for polar metabolites in biological matrices
Iturrospe, Elias; Da Silva, Katyeny Manuela; Talavera Andujar, Begona UL et al

in Journal of Chromatography. A (2020)

The analysis of polar metabolites based on liquid chromatography-mass spectrometry (LC-MS) methods should take into consideration the complexity of interactions in LC columns to be able to cover a broad ... [more ▼]

The analysis of polar metabolites based on liquid chromatography-mass spectrometry (LC-MS) methods should take into consideration the complexity of interactions in LC columns to be able to cover a broad range of metabolites of key biological pathways. Therefore, in this study, different chromatographic columns were tested for polar metabolites including reversed-phase and hydrophilic interaction liquid chromatography (HILIC) columns. Based on a column screening, two new generations of zwitterionic HILIC columns were selected for further evaluation. A tree-based method optimization was applied to investigate the chromatographic factors affecting the retention mechanisms of polar metabolites with zwitterionic stationary phases. The results were evaluated based on a scoring system which was applied for more than 80 polar metabolites with a high coverage of key human metabolic pathways. The final optimized methods showed high complementarity to analyze a wide range of metabolic classes including amino acids, small peptides, sugars, amino sugars, phosphorylated sugars, organic acids, nucleobases, nucleosides, nucleotides and acylcarnitines. Optimized methods were applied to analyze different biological matrices, including human urine, plasma and liver cell extracts using an untargeted approach. The number of high-quality features ( < 30% median relative standard deviation) ranged from 3,755 for urine to 5,402 for the intracellular metabolome of liver cells, showing the potential of the methods for untargeted purposes. [less ▲]

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See detailAutomating the Design of Efficient Distributed Behaviours for a Swarm of UAVs
Duflo, Gabriel UL; Danoy, Grégoire UL; Talbi, El-Ghazali UL et al

in IEEE Symposium Series on Computational Intelligence, Canberra 1-4 December 2020 (2020, December)

The usage of Unmanned Aerial Vehicles (UAVs) is gradually gaining momentum for commercial applications. The vast majority considers a single UAV, which comes with several constraints such as its range of ... [more ▼]

The usage of Unmanned Aerial Vehicles (UAVs) is gradually gaining momentum for commercial applications. The vast majority considers a single UAV, which comes with several constraints such as its range of operations or the number of sensors it can carry. Using multiple autonomous UAVs simultaneously as a swarm makes it possible to overcome these limitations. However, manually designing complex emerging behaviours like swarming is a difficult and tedious task especially for such distributed systems which performance is hardly predictable. This article therefore proposes to automate the design of UAV swarming behaviours by defining a multi-objective optimisation problem, so called Coverage of a Connected-UAV Swarm (CCUS), and designing a Q-Learning based Hyper-Heuristic (QLHH) for generating distributed CCUS heuristics. Experimental results demonstrate the capacity of QLHH to generate efficient heuristics for any instance from a given class. [less ▲]

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See detailThe Dissolution of the Austro-Hungarian Monarchy: Border Making and its Consequences.
Venken, Machteld UL

in European Review of History (2020), 26(6), 697-708

This special issue addresses practices of border-making and their consequences on the territory of the former Austro-Hungarian Monarchy. As the reality did not correspond to the peaceful Europe ... [more ▼]

This special issue addresses practices of border-making and their consequences on the territory of the former Austro-Hungarian Monarchy. As the reality did not correspond to the peaceful Europe articulated in the Paris Treaties, a multitude of (un)foreseen complications followed the drawing of borders and states. Articles include new case studies on the creation, centralization or peripheralization of border regions, such as Subcarpathian Rus, Vojvodina, Banat and the Carpathian Mountains, on border zones such as the Czechoslovakian harbour in Germany, and on cross-border activities. The special issue shows how disputes over national identities and ethnic minorities, as well as other factors such as the economic consequences of the new state borders, appeared on the interwar political agenda and coloured the lives of borderland inhabitants. Adopting a bottom-up approach, the contributions demonstrate the agency of borderlands and their people in the establishment, functioning, disorganization or ultimate breakdown of some of the newly created interwar nation-states. [less ▲]

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See detailSous les pavés, l’archive ! Luttes sociales et archives du Web
Schafer, Valerie UL

in Le Temps des Médias (2020), 35

The archiving of the Web since 1996, thanks to Internet Archive, prior to the multiplication of institutional initiatives, notably in Europe, has created a massive born-digital heritage of social ... [more ▼]

The archiving of the Web since 1996, thanks to Internet Archive, prior to the multiplication of institutional initiatives, notably in Europe, has created a massive born-digital heritage of social movements. Evolutionary in time, in space and according to digital platforms, this heritage invites us to think about the notion of living archive, the relationship between memory and history, the writing of the history of social struggles, the potentialities and methodological as well as ethical risks it raises. [less ▲]

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See detailAccurate, timely, interoperable? Data management in the asylum procedure in Luxembourg
Petry, Ralph UL; Nienaber, Birte UL

Report (2020)

The main objective of this study of the European Migration Network is to provide objective and reliable information about the data management in the asylum procedure in Luxembourg. The Luxembourgish ... [more ▼]

The main objective of this study of the European Migration Network is to provide objective and reliable information about the data management in the asylum procedure in Luxembourg. The Luxembourgish Asylum Law foresees a centralised and streamlined asylum system with one single national authority for registering, lodging and examining applications for international protection, namely the Ministry of Foreign and European Affairs, implemented by the Directorate of Immigration. The Asylum Law clearly distinguishes the phases of making, registering and lodging an application for international protection. In practice, however, the three phases generally occur on the same day or within a few working days if the claim is not directly made to the Directorate of Immigration. Furthermore, the asylum system does not differentiate between the different types of entry routes to Luxembourgish territory. As a consequence, applicants for international protection have a swift access to the asylum procedure once they express their wish to apply for international protection in Luxembourg. In addition to the tracks foreseen in the Recast Asylum Procedures Directive (2013/32/EU), Luxembourg operates a fourth track in the form of the ultra-accelerated procedure, which was introduced in 2017 as a practical acceleration of the accelerated procedure for applicants stemming from safe countries of origin from the Western Balkan countries and Georgia. The study provides an detailed overview of what data is collected from applicants of international protection, at what stage of the procedure this data is collected and by whom, as well as where and how this data is stored. Lastly, the study has shown that, despite the increase of applications since 2015 and a consistent high number of applications since then, the processing times have decreased significantly, in particular since 2017. [less ▲]

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See detailBreaking Up the Unity of the World: Peter Fitzpatrick’s Conception of Responsive Law
van der Walt, Johan Willem Gous UL

in Law, Culture and the Humanities (2020)

This short article on Peter Fitzpatrick’s conception of “responsive law” analyzes the ambiguous temporality that Fitzpatrick discerned in modern law. On the one hand, law makes the claim of being fully ... [more ▼]

This short article on Peter Fitzpatrick’s conception of “responsive law” analyzes the ambiguous temporality that Fitzpatrick discerned in modern law. On the one hand, law makes the claim of being fully present and therefore already and completely contained in itself. This aspect of law reflects the law’s claim to “immanence,” that is, its claim of always being able to rely strictly on its own operational terms without having to take recourse to any consideration not already contained within itself. It is this aspect of law that renders the ideal of the “rule of law” feasible. On the other hand, the law’s claim to doing justice to every unique and therefore every new case also demands that it takes leave of that which is already settled within it. This aspect of law can be called its “imminence.” The imminence of the law concerns the reality that law always finds itself on the threshold of that which has not yet been said and must still be said. The article shows how Fitzpatrick relied on Freud’s concept of the totem to explain the “wondrous” unity of its immanence and imminence. [less ▲]

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