Zuwendungsmotive zur computervermittelten Partnersuche

Die Magisterarbeit „Zuwendungsmotive zur computervermittelten Partnersuche – Eine Untersuchung vor dem Hintergrund des Nutzenansatzes“ kann dem Teilgebiet der Mediennutzungsforschung – konkret der Gratifikationsforschung - innerhalb der Kommunikationswissenschaft zugeordnet werden. Im Zuge der Arbeit wird Aufschluss darüber gegeben, aus welchen Motiven und dahinter liegenden Sinnstrukturen heraus Menschen computervermittelt auf einer Online-Singlebörse auf Partnersuche gehen. Theoretisches Fundament sind neben dem Nutzen- und Belohnungsansatz die 5 Motivgruppen von Schweiger (2007), adaptiert durch Grimm (2001, 2006) und die einzelnen Theorien der computervermittelten Kommunikation, die im „medienökologischen Rahmenmodell computervermittelter Kommunikation“ verschmelzen. Als Fallbeispiel für die Untersuchung dient die Online-Singlebörse www.herzflimmern.at. Durch problemzentrierte Leitfadeninterviews, die mittels qualitativer Inhaltsanalyse ausgewertet wurden, werden die Zuwendungsmotive und dahinterliegenden Sinnstrukturen der User offengelegt. Die Ergebnisse werden in Form von Hypothesen präsentiert.Within the research area of communication studies the master-thesis “Motivations for Online Dating – a Study based on the Uses and Gratification Approach” can be placed in the field of gratification research. The main issue of the thesis is to examine which motivations and needs are most responsible for the fact that people tend to look for their partner on the internet via online dating services. The empirical study is based on the uses and gratification approach with a main focus on the 5 motivation categories by Schweiger (2007), slightly adapted by the concept of Grimm (2001 and 2006). Furthermore the different theories of computer mediated communication which are all integrated in the “media-ecological model of computer mediated communication” (Döring 2003) play another important role. The online dating service www.herzflimmern.at functions as an example for the empirical analysis. It was possible to work out the user’s motivations and needs with the help of problem-centered guided interviews which were analyzed by a qualitative content analysis. The results are presented in form of hypotheses

Complexity Results and Algorithms for Extension Enforcement in Abstract Argumentation

Peer reviewe

Synthesizing Argumentation Frameworks from Examples

Peer reviewe

Extension Enforcement under Grounded Semantics in Abstract Argumentation

Peer reviewe

Advanced Algorithms for Abstract Dialectical Frameworks based on Complexity Analysis of Subclasses and SAT Solving

dialectical frameworks (ADFs) constitute one of the most powerful formalisms in abstract argumentation. Their high computational complexity poses, however, certain challenges when designing efficient systems. In this paper, we tackle this issue by (i) analyzing the complexity of ADFs under structural restrictions, (ii) presenting novel algorithms which make use of these insights, and (iii) implementing these algorithms via (multiple) calls to SAT solvers. An empirical evaluation of the resulting implementation on ADF benchmarks generated from ICCMA competitions shows that our solver is able to outperform state-of-the-art ADF systems. (c) 2022 The Author(s). Published by Elsevier B.V.Peer reviewe

Synthesizing Argumentation Frameworks from Examples

Proceeding volume: 285Peer reviewe

A holistic assessment of the impacts of park management: findings from the evaluation of Regional Nature Parks in Switzerland

In Switzerland, Regional Nature Parks are required to undergo an impact assessment after ten years of operation, in order for the federal government to award the Park of National Importance label for a further ten years and for the government, relevant canton and communes to continue to provide financial support for the park’s operation. To this end, is there a convenient way of identifying and holistically assessing the impacts of park management activities on the goals of the parks and the overarching targets of parks policy in Switzerland? Based on experience gained from the evaluation of three Regional Nature Parks, we have developed a framework model for the holistic evaluation of such parks and present it here for discussion

Implementing RLWE-based Schemes Using an RSA Co-Processor

We repurpose existing RSA/ECC co-processors for (ideal) lattice-based cryptography by exploiting the availability of fast long integer multiplication. Such co-processors are deployed in smart cards in passports and identity cards, secured microcontrollers and hardware security modules (HSM). In particular, we demonstrate an implementation of a variant of the Module-LWE-based Kyber Key Encapsulation Mechanism (KEM) that is tailored for high performance on a commercially available smart card chip (SLE 78). To benefit from the RSA/ECC co-processor we use Kronecker substitution in combination with schoolbook and Karatsuba polynomial multiplication. Moreover, we speed-up symmetric operations in our Kyber variant using the AES co-processor to implement a PRNG and a SHA-256 co-processor to realise hash functions. This allows us to execute CCA-secure Kyber768 key generation in 79.6 ms, encapsulation in 102.4 ms and decapsulation in 132.7 ms