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See detailQuantifying information flow in interactive systems
Mestel, David UL

in 2019 IEEE 32nd Computer Security Foundations Symposium (CSF) (in press)

We consider the problem of quantifying information flow in interactive systems, modelled as finite-state transducers in the style of Goguen and Meseguer. Our main result is that if the system is ... [more ▼]

We consider the problem of quantifying information flow in interactive systems, modelled as finite-state transducers in the style of Goguen and Meseguer. Our main result is that if the system is deterministic then the information flow is either logarithmic or linear, and there is a polynomial-time algorithm to distinguish the two cases and compute the rate of logarithmic flow. To achieve this we first extend the theory of information leakage through channels to the case of interactive systems, and establish a number of results which greatly simplify computation. We then show that for deterministic systems the information flow corresponds to the growth rate of antichains inside a certain regular language, a property called the width of the language. In a companion work we have shown that there is a dichotomy between polynomial and exponential antichain growth, and a polynomial time algorithm to distinguish the two cases and to compute the order of polynomial growth. We observe that these two cases correspond to logarithmic and linear information flow respectively. Finally, we formulate several attractive open problems, covering the cases of probabilistic systems, systems with more than two users and nondeterministic systems where the nondeterminism is assumed to be innocent rather than demonic. [less ▲]

Detailed reference viewed: 42 (2 UL)
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See detailBorders and Migration
Nienaber, Birte UL

in Wassenberg, Birte; Reitel, Bernard; Thevenet, Anne (Eds.) et al Critical Dictionary on Cross-Border Cooperation in Europe (in press)

Detailed reference viewed: 39 (7 UL)
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See detailDavid Seymour’s Album on the Fight Against Illiteracy in Calabria as a Tool of Mediatization: Material Traces of Editing and Visual Storytelling
Priem, Karin UL

in Hendel, Giovanna; Naggar, Carole; Priem, Karin (Eds.) They Did not Stop at Eboli: The UNESCO Campaign Against Illiteracy in Reportages by David Seymour and Carlo Levi (1950) (in press)

Detailed reference viewed: 43 (4 UL)
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See detailLörres, Möppes, and the Swiss. (Re)Discovering Regional Patterns in Anonymous Social Media Data
Purschke, Christoph UL; Hovy, Dirk

in Journal of Linguistic Geography (in press)

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See detailImages of Industrial Life and Vocational Training: Scouting as a Liminal Space for Educating a Workers’ Elite in 1920s Luxembourg
Herman, Frederik; Priem, Karin UL

in History of Education (in press)

This paper looks at a specific set of corporate images, namely photographs of apprentices of the Luxembourg steel conglomerate ARBED, and analyzes how young workers are depicted in these images. The paper ... [more ▼]

This paper looks at a specific set of corporate images, namely photographs of apprentices of the Luxembourg steel conglomerate ARBED, and analyzes how young workers are depicted in these images. The paper draws on a collection of 2,251 glass plate negatives (re)presenting ARBED’s industrial cosmos, including its vocational school the Institut Emile Metz. The roughly 160 images of apprentices contained in the collection put on display the apprentices’ bodies and a variety of activities in different contexts. The images’ contents testify to the institute’s programmatic hybridity and the constant (re-)mix of formal and semi-formal learning activities intended to educate natural, urban, mobile and communal men and future workers. Our focus is on Boy Scouts activities in a variety of different environments, which have functioned as a liminal space for educating a workers’ elite, mitigating the risks of industrialization and fostering social harmony and cultural belonging. [less ▲]

Detailed reference viewed: 57 (2 UL)
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See detailRespirations-assoziiertes evoziertes Potenzial
Schulz, André UL

in Wirtz, M. A. (Ed.) Dorsch - Lexikon der Psychologie (in press)

Detailed reference viewed: 21 (0 UL)
See detailThey Did not Stop at Eboli: The UNESCO Campaign Against Illiteracy in Reportages by David Seymour and Carlo Levi (1950)
Hendel, Giovanna; Naggar, Carole; Priem, Karin UL

Book published by De Gruyter - Appearances: Studies in Visual Research (in press)

Detailed reference viewed: 51 (3 UL)
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See detailRespiration
Schulz, André UL

in Wirtz, M. A. (Ed.) Dorsch - Lexikon der Psychologie (in press)

Detailed reference viewed: 26 (0 UL)
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See detailBaroreflex-Sensitivität
Schulz, André UL

in Wirtz, M. A. (Ed.) Dorsch - Lexikon der Psychologie (in press)

Detailed reference viewed: 25 (0 UL)
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See detailElektrogastrogramm (EGG)
Schulz, André UL

in Wirtz, M. A. (Ed.) Dorsch - Lexikon der Psychologie (in press)

Detailed reference viewed: 23 (1 UL)
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See detailHerzschlag-evoziertes Potenzial (HEP)
Schulz, André UL

in Wirtz, M. A. (Ed.) Dorsch - Lexikon der Psychologie (in press)

Detailed reference viewed: 28 (0 UL)
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See detailImpedanzkardiographie (IKG)
Schulz, André UL

in Wirtz, M. A. (Ed.) Dorsch - Lexikon der Psychologie (in press)

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See detailBlutdruckvariabilität
Schulz, André UL

in Wirtz, M. A. (Ed.) Dorsch - Lexikon der Psychologie (in press)

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See detailHerzschlagwahrnehmung
Schulz, André UL

in Wirtz, M. A. (Ed.) Dorsch - Lexikon der Psychologie (in press)

Detailed reference viewed: 23 (1 UL)
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See detailSpirometrie
Schulz, André UL

in Wirtz, M. A. (Ed.) Dorsch - Lexikon der Psychologie (in press)

Detailed reference viewed: 23 (0 UL)
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See detailAtmungsmessung
Schulz, André UL

in Wirtz, M. A. (Ed.) Dorsch - Lexikon der Psychologie (in press)

Detailed reference viewed: 26 (0 UL)
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See detailLauenstein im Bild. Über das Edieren von Geschichte und Erinnerung in historischen Alben
Priem, Karin UL

in Werner, Meike (Ed.) Ein Gipfel für Morgen. Kontroversen 1917/18 um die Neuordnung Deutschlands auf Burg Lauenstein (in press)

Detailed reference viewed: 60 (0 UL)
See detailLa formation professionnelle transfrontalière en tant que processus d’apprentissage et mobilisation du savoir transfrontaliers
Funk, Ines; Nienaber, Birte UL; Dörrenbächer, H. Peter

in Hamez, Grégory; Defays, Jean-Marc (Eds.) Réalités, perceptions et représentations des frontières de l'Union Européenne (in press)

Detailed reference viewed: 59 (2 UL)
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See detailFeasibility of Stellar as a Blockchain-based Micropayment System
Khan, Nida UL; Ahmad, Tabrez; State, Radu UL

in Springer SmartBlock 2019 - 2nd International Conference on Smart Blockchain (in press)

The advent of Bitcoin was heralded as an innovation in the global monetary system, that could bring down transaction fees by circumventing the need for third parties and conduct transactions in real time ... [more ▼]

The advent of Bitcoin was heralded as an innovation in the global monetary system, that could bring down transaction fees by circumventing the need for third parties and conduct transactions in real time. The divisibility of a blockchain cryptocurrency to even fractions of a cent, caused microtransactions to become feasible to formerly non-existent denominations. These microtransactions have spurred the development of novel ways of monetizing online resources and hold the potential to aid in alleviation of poverty. The paper conducts a feasibility study on Stellar as a blockchain-based micropayment system. It highlights the computational and other issues that impedes its progress and utilizes a characterization model for micropayment systems to evaluate the efficacy of the Stellar platform. The paper conducts a comparison with the micropayment solutions from Bitcoin, Ethereum and PayPal. The paper analyzes a subset of transactions from the Stellar blockchain to aid in drawing a conclusion on the undertaken study and elaborates on the mitigation tools to enable fraud prevention in online monetary transactions. [less ▲]

Detailed reference viewed: 56 (12 UL)
See detailClemens Brentano’s “Sound-Thing” (Klingding). Homophonic Translation in German Romanticism
Dembeck, Till UL

in Weissmann, Dirk; Broqua, Vincent (Eds.) Sound / Writing: traduire-écrire entre le son et le sens / Homophonic translation – traducson – Oberflächenübersetzung (in press)

Detailed reference viewed: 24 (0 UL)