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See detailKeynote lecture: Exploring Jewish History in the Digital Age
Zaagsma, Gerben UL

Scientific Conference (2021, October 04)

This lecture will explore the intersection of Jewish Studies and Digital Humanities in general, and the myriad ways in which new technologies affect the field of Jewish History in particular. Importantly ... [more ▼]

This lecture will explore the intersection of Jewish Studies and Digital Humanities in general, and the myriad ways in which new technologies affect the field of Jewish History in particular. Importantly, the digital turn in Jewish Studies needs to be historicised; as is the case for the humanities in general, applications of computing in Jewish Studies go back at least 60 years. And as is true for the humanities in general, we should be careful to differentiate engagements with technology in the various (sub-)disciplines that Jewish Studies incorporates, while remaining attentive to common methodological and epistemological questions. In my lecture I will address these broader issues and ask what specific characteristics, if any, Jewish Studies scholars face, before delving into the specific challenges for Jewish historical research. I will then discuss how digital approaches have been, are, and could be harnassed to address these. As digitisation opens up new avenues for research, and can help overcome the classic problem of dispersal of sources, a crucial question to ask is what (Jewish) heritage is being digitised and which stories about the (Jewish) past can (and cannot) be told using them. What are the politics of digitisation in the context of Jewish history and how can we ensure that the offline Jewish historical record remains as relevant as its online counterpart in an age where more and more scholars move to using online resources? In short, how does the digital turn affect Jewish historical research and how can we bring about the full potential of the digital turn for research into Jewish history? [less ▲]

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See detailThe diplomatic and legal aspects of the Corfu Channel incident
Politis, Alexandros UL

Speeches/Talks (2021)

A speech given in Corfu island, Greece, on 3.10.2021 in the context of a two-day commemoration event on the Corfu Channel incident of 22 October 1946, organised by the Albert Cohen Corfu Association with ... [more ▼]

A speech given in Corfu island, Greece, on 3.10.2021 in the context of a two-day commemoration event on the Corfu Channel incident of 22 October 1946, organised by the Albert Cohen Corfu Association with the participation of representatives of the British Embassy in Athens and the British Armed Forces. [less ▲]

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See detailSEMKIS-DSL: a Domain-Specific Language for Specifying Neural Networks’ Key-Properties
Jahic, Benjamin UL; Guelfi, Nicolas UL; Ries, Benoit UL

Report (2021)

Neural networks are becoming increasingly part of today’s software systems. These neural networks are simplified models of the human brain that are mainly capable of learning from large datasets to ... [more ▼]

Neural networks are becoming increasingly part of today’s software systems. These neural networks are simplified models of the human brain that are mainly capable of learning from large datasets to compute some function based on recognized data. Engineering these datasets and these neural network-based software systems is a complicated and challenging task. Software engineers require methods and tools to engineer these datasets and neural networks for their customers and to satisfy their requirements. In general, they lack methods and tools to support the engineering of dataset and neural networks that satisfy the customer’s requirements. They follow traditional approaches consisting of time-consuming, imprecise and manual activities. Typically, these approaches are not supported by any tool that precisely analyse and specify the neural network’s recognition skills. In our previous work, we have introduced the notion of key-properties for describing the neural network’s recognition skills. In this paper, we define a domain-specific language to support our SEMKIS software engineering methodology for the dataset augmentation to improve network’s key-properties. We present the SEMKIS-DSL for the specification of the key-properties of a neural network. We illustrate the concepts of our DSL with a running example specifying a neural network for recognizing a digital meter counter state. This running example demonstrates a specification of the neural network’s key-properties using the SEMKIS-DSL and a successful improvement of the neural network’s recognition skills. [less ▲]

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See detailMeasuring progress to address statelessness in the EU and Georgia
Sommarribas, Adolfo UL

Report (2021)

Member States reported statistics from a range of sources or categories. The time period covered by the statistics, which was not specified in the information request, also varied. If a date is not ... [more ▼]

Member States reported statistics from a range of sources or categories. The time period covered by the statistics, which was not specified in the information request, also varied. If a date is not specified, it is assumed that statistics refer to the time of the answer period for the ad hoc query which was April/May 2021. Sources/categories reported include residence permit data, population register data, statutory stateless persons, persons without citizenship, unknown/undetected nationality, nationality not specified and recognised stateless persons. T [less ▲]

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See detailVisualizing Visions: Re-viewing the seventeenth-century genre of constcamer paintings
Koeleman, Floor Anna UL

Doctoral thesis (2021)

Constcamer paintings or pictures of collections were created almost exclusively in Antwerp, and to a lesser extent in Brussels, in the seventeenth century. Until now, no attempt had been made to collect ... [more ▼]

Constcamer paintings or pictures of collections were created almost exclusively in Antwerp, and to a lesser extent in Brussels, in the seventeenth century. Until now, no attempt had been made to collect all known examples, partly because of the contemporary distribution of such works across collections throughout the Western world. Another difficulty in studying constcamer paintings is the great complexity of the rich variety of subjects, objects, and concepts on display in the images that combine many disciplines separated today. Advances in the field of computer science have made it possible to systematically collect, archive, and analyze artworks and associated information on a large scale. My digital approach to the genre aimed to determine what a constcamer painting is, in terms of form, content, and meaning. In addition to looking at pictorial features and cognitively identifying what we see, contextualization played a key role in achieving understanding. Pictorial, historical, social, cultural, and intellectual contexts served as the framework for interpretation. Special attention has been paid to the interplays between collecting and recollecting, art and science, and physical and metaphysical vision. This thesis argues that pictures of collections primarily lay claim to the active intellect to generate insights by uncovering the multitude of meanings embedded in the seventeenth-century genre. The examination of constcamer paintings through a dataset led to enhanced perception and highlighted the prominence of visuality in the transmission and acquisition of knowledge, both then and now. [less ▲]

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See detailExcess Control Rights, Multiple Large Shareholders, and Corporate Cash Holding Behavior
Benkraiem, Ramzi; Boubaker, Sabri; Derouiche, Imen UL et al

Scientific Conference (2021, October 01)

This article examines the effects of excess control rights of the controlling shareholder and the presence of multiple large shareholders on the propensity of firms to save cash out of cash flow, i.e. the ... [more ▼]

This article examines the effects of excess control rights of the controlling shareholder and the presence of multiple large shareholders on the propensity of firms to save cash out of cash flow, i.e. the sensitivity of cash to cash flow. Using a data set covering 6,430 firm–year observations of 634 French listed firms, the evidence shows that firms have high cash flow sensitivity of cash when the controlling shareholder‘s control rights exceed its cash-flow ownership. However, this sensitivity decreases with the contestability of the controlling owner‘s power. Taken together, these findings provide empirical support to the argument that firms experiencing excess control rights save more cash out of cash flow due to their considerable financial constraints that are lowered in the presence of high control contestability. [less ▲]

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See detailPresenter: Migration and Border Research at C2DH
Venken, Machteld UL

Presentation (2021, October 01)

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See detailFrom SLAM to Situational Awareness: Challenges and Survey
Bavle, Hriday UL; Sanchez Lopez, Jose Luis UL; Schmidt F, Eduardo et al

E-print/Working paper (2021)

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See detailA Formalisation of Abstract Argumentation in Higher-Order Logic
Steen, Alexander UL; Fuenmayor Pelaez, David UL

E-print/Working paper (2021)

We present an approach for representing abstract argumentation frameworks based on an encoding into classical higher-order logic. This provides a uniform framework for computer-assisted assessment of ... [more ▼]

We present an approach for representing abstract argumentation frameworks based on an encoding into classical higher-order logic. This provides a uniform framework for computer-assisted assessment of abstract argumentation frameworks using interactive and automated reasoning tools. This enables the formal analysis and verification of meta-theoretical properties as well as the flexible generation of extensions and labellings with respect to well-known argumentation semantics. [less ▲]

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Peer Reviewed
See detailRequirements And Threat Models of Adversarial Attacks and Robustness of Chest X-ray classification
Ghamizi, Salah UL; Cordy, Maxime UL; Papadakis, Mike UL et al

E-print/Working paper (2021)

Vulnerability to adversarial attacks is a well-known weakness of Deep Neural Networks. While most of the studies focus on natural images with standardized benchmarks like ImageNet and CIFAR, little ... [more ▼]

Vulnerability to adversarial attacks is a well-known weakness of Deep Neural Networks. While most of the studies focus on natural images with standardized benchmarks like ImageNet and CIFAR, little research has considered real world applications, in particular in the medical domain. Our research shows that, contrary to previous claims, robustness of chest x-ray classification is much harder to evaluate and leads to very different assessments based on the dataset, the architecture and robustness metric. We argue that previous studies did not take into account the peculiarity of medical diagnosis, like the co-occurrence of diseases, the disagreement of labellers (domain experts), the threat model of the attacks and the risk implications for each successful attack. In this paper, we discuss the methodological foundations, review the pitfalls and best practices, and suggest new methodological considerations for evaluating the robustness of chest xray classification models. Our evaluation on 3 datasets, 7 models, and 18 diseases is the largest evaluation of robustness of chest x-ray classification models. We believe our findings will provide reliable guidelines for realistic evaluation and improvement of the robustness of machine learning models for medical diagnosis. [less ▲]

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See detailLabor Market Effects of Technology Shocks biased Toward the Traded Sector
Bertinelli, Luisito UL; Cardi; Restout

E-print/Working paper (2021)

Motivated by recent evidence pointing at an increasing contribution of asymmetric shocks across sectors to economic fluctuations, we explore the labor market effects of technology shocks biased toward the ... [more ▼]

Motivated by recent evidence pointing at an increasing contribution of asymmetric shocks across sectors to economic fluctuations, we explore the labor market effects of technology shocks biased toward the traded sector. Our VAR evidence for seventeen OECD countries reveals that the non-traded sector alone drives the increase in total hours worked following a technology shock that increases permanently traded relative to non-traded TFP. The shock generates a reallocation of labor toward the non-traded sector which contributes to 35% on average of the rise in non-traded hours worked. Both labor reallocation and variations in labor income shares are found empirically connected with factor-biased technological change. Our quantitative analysis shows that a two-sector open economy model with flexible prices can reproduce the labor market effects we document empirically once we allow for imperfect mobility of labor, gross substitutability between home- and foreign-produced traded goods, and factor-biased technological change. When calibrating the model to country-specific data, its ability to account for the cross-country reallocation and redistributive effects we estimate increases once we let factor-biased technological change vary between sectors and across countries. [less ▲]

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Peer Reviewed
See detailExplicar los impactos de la globalización en las zonas transfronterizas a través de la calidad de la democracia. Un marco interregional comparativo
Koff, Harlan UL; Mejía Idarraga, Santiago

in Estudios Políticos (2021), 62

Globalisation has significantly affected the ability of States to govern flows. Important questions which have recently emerged in international relations ask: how has globalisation affected border ... [more ▼]

Globalisation has significantly affected the ability of States to govern flows. Important questions which have recently emerged in international relations ask: how has globalisation affected border regions and what explains these impacts? Employing a comparative, cross-regional research design, this article proposes two originalresponses to these questions: first, it questions whether border communities benefit or suffer from globalization and, in doing so, it addresses the impacts of globalization on border communities. Second, an attempt is made to explain these impacts by studying the democratic quality of border integration processes. Thus, globalization is examined as a system in which the benefits are distributed or concentrated according to the quality of the integration processes. [less ▲]

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See detailAnalysis of the geometrical imperfections of a dry-stacked masonry block based on Miscanthus
Pereira Dias, Patrick; Jesuino Kammer, Vanessa; Waldmann, Daniele UL

in Construction and Building Materials (2021)

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Peer Reviewed
See detailLeveraging Temporal Information for 3D Trajectory Estimation of Space Objects
Mohamed Ali, Mohamed Adel UL; Ortiz Del Castillo, Miguel UL; Al Ismaeil, Kassem UL et al

in Proceedings of the IEEE/CVF International Conference on Computer Vision (ICCV) Workshops (2021, October)

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Peer Reviewed
See detailIntelligent Autonomous Agents and Trust in Virtual Reality
Sun, Ningyuan UL; Botev, Jean UL

in Computers in Human Behavior Reports (2021)

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See detailChronique de droit des marchés financiers
Conac, Pierre-Henri UL

in Revue des Sociétés (2021)

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Peer Reviewed
See detailFlight to Safety and Retail Investor Behavior
Lehnert, Thorsten UL

Scientific Conference (2021, October)

Detailed reference viewed: 38 (3 UL)
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Peer Reviewed
See detailThe Moderating Role of Attention Control in the Relationship Between Pain Catastrophizing and Negatively-Biased Pain Memories in Youth With Chronic Pain
Wauters, Aline; Noel, Melanie; van Ryckeghem, Dimitri UL et al

in Journal of Pain (2021), 22(10), 1303-1314

The present study examined the role of attention control in understanding the development of negatively-biased pain memories as well as its moderating role in the relationship between pain catastrophizing ... [more ▼]

The present study examined the role of attention control in understanding the development of negatively-biased pain memories as well as its moderating role in the relationship between pain catastrophizing and negatively-biased pain memories. Youth with chronic pain (N = 105) performed a cold pressor task (CPT) and completed self-report measures of state/trait pain catastrophizing and attention control, with the latter comprising both attention focusing and attention shifting. Two weeks after the CPT, youth's pain-related memories were elicited via telephone allowing to compute pain and anxiety memory bias indices (ie, recalling pain intensity or pain-related anxiety, respectively, as higher than initially reported). Results indicated no main effects of attention control and pain catastrophizing on pain memories. However, both components of attention control (ie, attention focusing and attention shifting) moderated the impact of pain catastrophizing on youth's memory bias, with opposite interaction effects. Specifically, whereas high levels of attention shifting buffered the influence of high pain catastrophizing on the development of pain memory bias, high levels of attention focusing strengthened the influence of high pain catastrophizing on the development of anxiety memory bias. Interaction effects were confined to trait catastrophizing (ie, not state catastrophizing). Theoretical and clinical implications are discussed. PERSPECTIVE: This article investigates the role of attention control in the development of negatively-biased pain memories in children with chronic pain. Findings underscore the importance of targeting differential components of attention control and can inform intervention efforts to minimize the development of negatively biased pain memories in youth with chronic pain. [less ▲]

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