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See detailBürgschaft (§§ 765-778), in Erman, BGB
Zetzsche, Dirk Andreas UL

in Erman (Ed.) Bürgschaft (§§ 765-778), in Erman, BGB (in press)

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See detailVerwahrung (§§ 688-700), in Erman, BGB
Zetzsche, Dirk Andreas UL

in Erman (Ed.) Verwahrung (§§ 688-700), in Erman, BGB (in press)

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See detailThe Future of Data-Driven Finance and RegTech
Zetzsche, Dirk Andreas UL; Buckley, Ross; Arner, Douglas et al

in Journal of Law and Policy (in press)

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See detailViews on Ageing - A Lifespan Approach
Kornadt, Anna Elena UL; Kessler, Eva-Marie; Wurm, Susanne et al

in European Journal of Ageing (in press)

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See detailSparse classification with paired covariates
Rauschenberger, Armin UL; Ciocănea-Teodorescu, Iuliana; Jonker, Marianne A. et al

in Advances in Data Analysis and Classification (in press)

This paper introduces the paired lasso: a generalisation of the lasso for paired covariate settings. Our aim is to predict a single response from two high-dimensional covariate sets. We assume a one-to ... [more ▼]

This paper introduces the paired lasso: a generalisation of the lasso for paired covariate settings. Our aim is to predict a single response from two high-dimensional covariate sets. We assume a one-to-one correspondence between the covariate sets, with each covariate in one set forming a pair with a covariate in the other set. Paired covariates arise, for example, when two transformations of the same data are available. It is often unknown which of the two covariate sets leads to better predictions, or whether the two covariate sets complement each other. The paired lasso addresses this problem by weighting the covariates to improve the selection from the covariate sets and the covariate pairs. It thereby combines information from both covariate sets and accounts for the paired structure. We tested the paired lasso on more than 2000 classification problems with experimental genomics data, and found that for estimating sparse but predictive models, the paired lasso outperforms the standard and the adaptive lasso. The R package palasso is available from CRAN. [less ▲]

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See detailChildhood Emotional Abuse and Cyberbullying Perpetration: The Role of Dark Personality Traits
Kircaburun, Kagan; Jonason, Peter; Griffiths, Mark D. et al

in Journal of Interpersonal Violence (in press), 0(0), 0886260519889930

Dark personality traits (i.e., Machiavellianism, psychopathy, narcissism, spitefulness, and sadism) are associated with adverse childhood experiences and deviant online behaviors. However, their mediating ... [more ▼]

Dark personality traits (i.e., Machiavellianism, psychopathy, narcissism, spitefulness, and sadism) are associated with adverse childhood experiences and deviant online behaviors. However, their mediating role between childhood emotional abuse and cyberbullying has never previously been investigated. We examined direct and indirect associations of childhood emotional abuse and cyberbullying via dark personality traits among 772 participants. Men were better characterized by dark personality traits and were more likely to engage in cyberbullying than women, and there were no sex differences in childhood emotional abuse. Collectively, dark traits fully mediated the relationship between childhood emotional abuse and cyberbullying in men, with partial mediation in the total sample and women. More specifically, Machiavellianism and spitefulness were mediators in both samples, sadism was a mediator in men and the total sample, and psychopathy was a mediator in the total sample and women. The dark personality traits can account for the association between childhood emotional abuse and cyberbullying, especially among men. [less ▲]

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See detailThe effect of risk disclosure on analyst following
Derouiche, Imen UL; Muessig, Anke UL; Weber, Véronique UL

in European Journal of Finance (in press)

Prior research shows that financial analysts play an important information intermediary role in France. This study extends earlier research to examine the effect of risk disclosure on the number of ... [more ▼]

Prior research shows that financial analysts play an important information intermediary role in France. This study extends earlier research to examine the effect of risk disclosure on the number of analysts following listed firms. Using a unique dataset of French firms on the 120 SBF index over 2007−2015, the results show a positive and significant relation between risk disclosure and analyst following, suggesting that firms having greater risk disclosure attract more financial analysts. These findings provide empirical support to the argument that analysts incur lower costs of information gathering in firms with greater risk disclosure. The demand for analyst services is also more valuable in these firms, given their potentially high exposure to risks, implying greater analyst following. Overall, our results are in line with prior literature highlighting that analysts’ activities complement annual report disclosures and, generally, corporate disclosures. [less ▲]

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See detailOn Rational Entailment for Propositional Typicality Logic
Booth, Richard; Casini, Giovanni UL; Meyer, Thomas et al

in Artificial Intelligence (in press)

Propositional Typicality Logic (PTL) is a recently proposed logic, ob- tained by enriching classical propositional logic with a typicality opera- tor capturing the most typical (alias normal or ... [more ▼]

Propositional Typicality Logic (PTL) is a recently proposed logic, ob- tained by enriching classical propositional logic with a typicality opera- tor capturing the most typical (alias normal or conventional) situations in which a given sentence holds. The semantics of PTL is in terms of ranked models as studied in the well-known KLM approach to preferen- tial reasoning and therefore KLM-style rational consequence relations can be embedded in PTL. In spite of the non-monotonic features introduced by the semantics adopted for the typicality operator, the obvious Tarskian definition of entailment for PTL remains monotonic and is therefore not appropriate in many contexts. Our first important result is an impossibil- ity theorem showing that a set of proposed postulates that at first all seem appropriate for a notion of entailment with regard to typicality cannot be satisfied simultaneously. Closer inspection reveals that this result is best interpreted as an argument for advocating the development of more than one type of PTL entailment. In the spirit of this interpretation, we in- vestigate three different (semantic) versions of entailment for PTL, each one based on the definition of rational closure as introduced by Lehmann and Magidor for KLM-style conditionals, and constructed using different notions of minimality. [less ▲]

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See detailPolitical Food Communication. Contrasting Food Governance Claims via Labelling Schemes and priorities of private and professional consumers
Reckinger, Rachel UL; Kapgen, Diane UL; Korjonen, Maria Helena UL

in Godeman, Jasmin; Bartelmeß (Eds.) Handbuch Ernährungskommunikation. Interdisziplinäre Perspektiven im Kontext von Nachhaltigkeit (in press)

Political food communication may take many forms, including direct recommendations to public institutions and private households (cf. Reckinger/Régnier 2017), or more indirect labelling schemes that ... [more ▼]

Political food communication may take many forms, including direct recommendations to public institutions and private households (cf. Reckinger/Régnier 2017), or more indirect labelling schemes that certify various types of quality – from sustainable via nutritious to ethical. The underlying governance claims differ in those cases: in the first one, priority is given to analytical, top-down information to procurement actors and to individuals of a given population; in the second one, action is rather taken in the direction of food production and transformation, be it top-down or participatory, with an associated effort to make the communicated guarantees transparent to consumers. In this article, we will analyse in a praxeological perspective the contrasting governance claims that structure a selection of labelling schemes in contemporary Luxembourg: official ones (such as organic produce, among others), voluntary and regional ones, international ones, as well as supermarket brands blurring boundaries and using overlaps of several labels. We will compare the guarantees and transparency that labels tend to offer in the socio-ecological, socioeconomic, sociocultural and socio-political dimensions of food certification, viewed as a potentially enabling or disabling form of food communication. At the same time, we will examine the potential of these aids for individual consumers’ priorities and public procurement actors’ legal framework in selecting foodstuffs with added sustainable or ethical value, asking the question if such certifications are efficient tools of food communication and ultimately of an enhanced food literacy in an arena of potentially conflicting and crowded messages. [less ▲]

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See detailThe EU Administrative Institutions, Their Law and Legal Scholarship
Mendes, Joana UL

in Cane, Peter; Hoffman, Herwig; Lindseth, Peter (Eds.) Oxford Handbook on Comparative Administrative Law (in press)

The chapter approaches the EU administrative institutions as catalysts of the development of administrative law of the European Union. As a chapter of the Oxford Handbook on Comparative Administrative Law ... [more ▼]

The chapter approaches the EU administrative institutions as catalysts of the development of administrative law of the European Union. As a chapter of the Oxford Handbook on Comparative Administrative Law, it explains the main traits of those institutions, how legal scholarship has portrayed them and how it has addressed the core aspects of their legal regimes. Furthermore, it traces the emergence and current state of EU administrative law, characterising the different roles comparative administrative law has had at different stages. It highlights the initial dissonance between the specificities of the EU administrative institutions and the state-matrix of general principles that were developed on the basis of functional comparison; the role of legal scholarship in shaping EU administrative law, in its efforts to give effect to an “utopia” (Chiti, 2007) of an integrated administration constitutionally framed by general principles and fundamental rights; the limits of resorting to comparative administrative law in the context of EU integration and, briefly, the crossroads at which EU administrative law currently stands. [less ▲]

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See detailIntegrating Topological Proofs with Model Checking to Instrument Iterative Design
Menghi, Claudio UL; Rizzi, Alessandro Maria; Bernasconi, Anna

in Proceedings of the 23rd International Conference on Fundamental Approaches to Software Engineering, FASE 2020 (in press)

System development is not a linear, one-shot process. It proceeds through refinements and revisions. To support assurance that the system satisfies its requirements, it is desirable that continuous ... [more ▼]

System development is not a linear, one-shot process. It proceeds through refinements and revisions. To support assurance that the system satisfies its requirements, it is desirable that continuous verification can be performed after each refinement or revision step. To achieve practical adoption, formal verification must accommodate continuous verification efficiently and effectively. Model checking provides developers with information useful to improve their models only when a property is not satisfied, i.e., when a counterexample is returned. However, it is desirable to have some useful information also when a property is instead satisfied. To address this problem we propose TOrPEDO, an approach that supports verification in two complementary forms: model checking and proofs. While model checking is typically used to pinpoint model behaviors that violate requirements, proofs can instead explain why requirements are satisfied. In our work, we introduce a specific notion of proof, called Topological Proof. A topological proof produces a slice of the original model that justifies the property satisfaction. Because models can be incomplete, TOrPEDO supports reasoning on requirements satisfaction, violation, and possible satisfaction (in the case where satisfaction depends on unknown parts of the model). Evaluation is performed by checking how topological proofs support software development on 12 modeling scenarios and 15 different properties obtained from 3 examples from literature. Results show that: (i) topological proofs are ≈60% smaller than the original models; (ii) after a revision, in ≈78% of cases, the property can be re-verified by relying on a simple syntactic check. [less ▲]

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See detailReinforcing citizens’ participation by reforming European commission public consultations
Kies, Raphaël UL

in Alemanno, Alberto; Oregan, James (Eds.) Democratic Participation in a Citizen's Europe: What next for the EU? (in press)

In this chapter, I would like to draw some lessons from the failed attempts of democratization of the EU by proposing some guidelines that should be followed in order to envision a realistic deliberative ... [more ▼]

In this chapter, I would like to draw some lessons from the failed attempts of democratization of the EU by proposing some guidelines that should be followed in order to envision a realistic deliberative and inclusive transformation of the EU-decision making process. By following their spirits, I will propose an ambitious renovation of the public consultation regime of the EU Commission, the only institutionalized system of public consultation enshrined in the EU Treaties that however most of the citizens are not aware of. This is an idea that I first presented in at the conference at the World Bank (Kies 2016) and that has since then been discussed and presented in the report commissioned by the European Economic and Social Committee (Lironi and Peta 2017), the European Parliament (Korthagen et al. 2018) and is presently discussed within the European Court of Auditors. [less ▲]

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See detailThe Principle of Transparency and Access to Documents in the EU: for what, for whom, and of what?
Mendes, Joana UL

in Auby, Jean-Bernard; Jacqueline, Dutheil de la Rochère (Eds.) Traité de Droit Administratif (in press)

Written as a chapter for the third edition of the Traité de Droit Administratif Européen, directed by Jacqueline Dutheil de la Rochère and Jean Bernard Auby (Bryulant, forthcoming), this paper ... [more ▼]

Written as a chapter for the third edition of the Traité de Droit Administratif Européen, directed by Jacqueline Dutheil de la Rochère and Jean Bernard Auby (Bryulant, forthcoming), this paper characterizes transparency as an ambivalent principle of EU law and governance, serving both a functional and a democratic rationale. The analysis focuses on the right of access to documents, a right whose scope and democratic function very much depend on who requests and on the interpretation of the exceptions to access. While the former is a matter of practice, the latter is essentially the result of the main approaches that the Court of Justice of the European Union (CJEU) has followed hitherto: strict interpretation and application of the exceptions, on the one hand, and general presumptions of non-disclosure, on the other. The paper presents both. It argues that, while much criticized in the literature as contrary to the democratic function of the regulation on access to documents, general presumptions of non-disclosure merit a more nuanced analysis. They can be, under restricted circumstances, a way to protect the democratic function of the citizen’s right to access. Yet, the uncertain and evolving criteria for the establishment of a general presumption of non-disclosure have effectively carved out whole categories of documents from the possibility of access, insulating significant sections of EU public action from the pressure of democratic claims. Overall, the right of access to documents, as ancillary to a principle of democracy, has a limited capacity to change the nature of the polity and of the system of governance in which it is embedded. [less ▲]

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See detailThe Foundations of the Duty to Give Reasons and a Normative Reconstruction
Mendes, Joana UL

in Fisher, Elizabeth; King, Jeff; Young, Alison (Eds.) The Foundations and Future of Public Law (in press)

Despite operating in highly constrained legal environments, executive actors may act in a constitutive capacity. This observation prompts a critical assessment of the role of procedural principles in EU ... [more ▼]

Despite operating in highly constrained legal environments, executive actors may act in a constitutive capacity. This observation prompts a critical assessment of the role of procedural principles in EU administrative law. As norms of conduct deployed by executive bodies during the process of norm concretization, procedural principles may have legal dimensions that, while constitutionally relevant, may not come to the fore in judicial review. The chapter develops this argument with regard to the multifaceted character of the duty to give reasons. It argues that, as a norm of conduct, the duty to give reasons ought to ensure the constitutional embeddedness of the constitutive action of EU executive bodies. Such role is consistent both with the original relevance of the duty to give reasons to the law of integration (in the context of the European Coal and Steel Community) and with the current EU constitutional framework. The latter justifies reinstituting the original constitutional function of the duty to give reasons, irrespective of its current scope in the context of judicial review. [less ▲]

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See detailModel Checking MITL formulae on Timed Automata: a Logic-Based Approach
Menghi, Claudio UL; Bersani, Marcello; Rossi, Matteo et al

in ACM Transactions on Computational Logic (in press)

Timed Automata (TA) is de facto a standard modelling formalism to represent systems when the interest is the analysis of their behaviour as time progresses. This modelling formalism is mostly used for ... [more ▼]

Timed Automata (TA) is de facto a standard modelling formalism to represent systems when the interest is the analysis of their behaviour as time progresses. This modelling formalism is mostly used for checking whether the behaviours of a system satisfy a set of properties of interest. Even if efficient model-checkers for Timed Automata exist, these tools are not easily configurable. First, they are not designed to easily allow adding new Timed Automata constructs, such as new synchronization mechanisms or communication procedures, but they assume a fixed set of Timed Automata constructs. Second, they usually do not support the Metric Interval Temporal Logic (MITL) and rely on a precise semantics for the logic in which the property of interest is specified which cannot be easily modified and customized. Finally, they do not easily allow using different solvers that may speed up verification in different contexts. This paper presents a novel technique to perform model checking of Metric Interval Temporal Logic (MITL) properties on TA. The technique relies on the translation of both the TA and the MITL formula into an intermediate Constraint LTL over clocks (CLTLoc) formula which is verified through an available decision procedure. The technique is flexible since the intermediate logic allows the encoding of new semantics as well as new TA constructs, by just adding new CLTLoc formulae. Furthermore, our technique is not bound to a specific solver as the intermediate CLTLoc formula can be verified using different procedures. [less ▲]

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See detailUsing cross-border mobility in vocational education and training in the Greater Region SaarLorLux region
Nienaber, Birte UL; Dörrenbächer, H. Peter; Funk, Ines et al

in Cairns, David (Ed.) The Palgrave Handbook of Youth Mobility (in press)

High unemployment rates on one side of a border and training opportunities on the other, the lack of training programmes for specialised jobs on the one side of the border and well defined vocational ... [more ▼]

High unemployment rates on one side of a border and training opportunities on the other, the lack of training programmes for specialised jobs on the one side of the border and well defined vocational programmes on the other side: cross-border vocational education and training (VET) is an increasingly used tool to accommodate the differing needs inside the European Union in recent years. This paper will present, explain and analyse the diverse approaches and concepts of tailor-made as well as more standardized cross-border VET programmes in the Greater Region SaarLorLux (DE, FR, LUX, BE) and explain the different mobility types (from short-time exchange programmes, to internships as well as a formalised division of mobility between days of apprenticeship in one country and days of practical training in another country). This cross-border region is the largest transboundary commuting area and therefore the largest transboundary labour market in the EU. [less ▲]

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See detailLearning in transition: Erasmus+ as an opportunity for internationalization
Samuk, Sahizer UL; Nienaber, Birte UL; Kmiotek, Emilia Alicja UL et al

in Cairns, David (Ed.) The Palgrave Handbook of Youth Mobility (in press)

Erasmus+ has diversified its benefits for young people to learn and thrive via mobility in the last 30 years. How does Erasmus+ serve young people? We conducted 10 semi-structured interviews with young ... [more ▼]

Erasmus+ has diversified its benefits for young people to learn and thrive via mobility in the last 30 years. How does Erasmus+ serve young people? We conducted 10 semi-structured interviews with young people (aged between 18-29) in Luxembourg, Norway and Romania. Firstly, these young people feel that their identity changes as they internationalise and they travel more after the Erasmus+ experience. Hence, Erasmus+ is an eye opener. Secondly, employment, volunteering or training activities under Erasmus+ become a door-opener increasing young people’s chances of finding jobs. Thirdly, Erasmus+ does not end when the mobility ends: a new life style is adopted and nostalgia with the Erasmus+ leads to feeling at “home” in international environments. All these three aspects can be defined as Erasmus-isation encapsulated within a life-long perspective. [less ▲]

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See detailThe Uniqueness of Subjective Ageing. Convergent and Discriminant Validity
Spuling, Svenja M.; Klusmann, Verena; Bowen, Catherine E. et al

in European Journal of Ageing (in press)

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See detailLes archevêques de Milan face aux premières expériences seigneuriales: stratégies et positionnements (milieu XIIIe-début XIVe s.)
Salemme, Timothy UL

in Barralis, Christine (Ed.) L’évêque face à son métier. Actes du colloque international, Metz. 15-17 novembre 2017 (in press)

Detailed reference viewed: 14 (0 UL)