University of Luxembourg

About: University of Luxembourg is a education organization based out in Luxembourg, Luxembourg. It is known for research contribution in the topics: Context (language use) & Computer science. The organization has 4744 authors who have published 22175 publications receiving 381824 citations.

Example-Dependent Cost-Sensitive Logistic Regression for Credit Scoring

Abstract: Everal real-world classification problems are example-dependent cost-sensitive in nature, where the costs due to misclassification vary between examples. Credit scoring is a typical example of cost-sensitive classification. However, it is usually treated using methods that do not take into account the real financial costs associated with the lending business. In this paper, we propose a new example-dependent cost matrix for credit scoring. Furthermore, we propose an algorithm that introduces the example-dependent costs into a logistic regression. Using two publicly available datasets, we compare our proposed method against state-of-the-art example-dependent cost-sensitive algorithms. The results highlight the importance of using real financial costs. Moreover, by using the proposed cost-sensitive logistic regression, significant improvements are made in the sense of higher savings.

Market-Based Banking and the International Financial Crisis

Abstract: 1. Introduction: Towards a Political Economy of Banking 2. Framing Market-Based Banking and the Financial Crisis 3. Market-Based Banking as the Worst of All Worlds: Illustrations from the US and UK 4. Belgium and the Netherlands: Impatient Capital 5. A Peculiar Kind of Devastation: German Market-Based Banking 6. State Intervention and Market-Based Banking in France 7. A 'Ship in Trouble'. The Spanish Banking System and the International Financial Crisis 8. Turning the Crisis on its Head: Sovereign Debt Crisis as Banking Crisis in Italy and Greece 9. Cool Canada: A Case of Low Market-Based Banking in the Anglo-Saxon World 10. Market-Based Banking in Japan: From the Avant-Garde to Europe's Future?

Giant temperature span in electrocaloric regenerator.

Abstract: Cooling devices based on caloric materials have emerged as promising candidates to become the next generation of coolers. Several electrocaloric (EC) heat exchangers have been proposed that use different mechanisms and working principles. However, a prototype that demonstrates a competitive temperature span has been missing. We developed a parallel-plate active EC regenerator based on lead scandium tantalate multilayer capacitors. After optimizing the structural design by using finite element modeling for guidance and to considerably improve insulation, we measured a maximum temperature span of 13.0 kelvin. This temperature span breaks a crucial barrier and confirms that EC materials are promising candidates for cooling applications.