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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Semantic Information and Information Security : Definitional Issues

Lundgren, Björn January 2016 (has links)
This licentiate thesis consist of two separate research papers which concern two tangential topics – that of semantic information and that of information security. Both topics are approached by similar methods, i.e. with a concern about conceptual and definitional issues. In Paper I – concerning the concept of information, and a semantic conception thereof – the conceptual, and definitional, issues focus on one property, that of truthfulness. It is argued – against the veridicality thesis – that semantic information need not be truthful. In Paper II – concerning information security – it is argued that the current leading definitions (so-called ‘CIA’ definitions, which define information as secure if, and only if, the properties of confidentiality, integrity, and availability are retained) suffer from both actual and possible counter-examples, and lack an appropriate conceptual sense. On the basis of this criticism a new kind of definitions is proposed and argued for. / <p>QC 20161220</p> / SECURIT
2

On the veridicality of perfective clause-embedding verbs in Polish / A unified aspect-based analysis of incremental theme verbs with nominal and propositional complements

Zuchewicz, Karolina 17 September 2020 (has links)
Die vorliegende Arbeit beschäftigt sich mit der wahrheitsbasierten Bedeutung perfektiver satzeinbettender Prädikate im Polnischen, i.e. mit dem Zusammenhang zwischen Aspekt und Wahrheitsinferenz. Den Kern meiner Dissertation bilden sogenannte ‚reveal-type predicates‘ wie ‘beweisen’, ‘zeigen’ oder ‘offenbaren [dass]’. In Abhängigkeit von deren aspektueller Markierung bringen sie entweder eine maximale (bei perfektiven Verben) oder eine partielle Evidenz (bei imperfektiven Verben) für die Wahrheit einer eingebetteten Proposition mit sich. Nur wenn die Evidenz maximal ist, wird der dass-Satz notwendigerweise als wahr interpretiert. Ich habe gezeigt, dass maximale Evidenz einer totalen Affiziertheit eines nominalen inkrementellen Themas (wie z. B. in ‘einen Schrank bauen.pfv’) entspricht (Maximalität von Evidenz = Maximalität vom Schrank). Somit sind reveal-type predicates inkrementell. Außerdem habe ich eine Akzeptabilitätsstudie mit 51 polnischen MuttersprachlerInnen geplant und durchgeführt, die die Veridikalität des Perfektivs und die Neutralität des Imperfektivs bestätigt hat. Die Interpretation der Ergebnisse wurde um eine Korpusuntersuchung ergänzt. Basierend auf den theoretischen Beobachtungen und den Studienergebnissen habe ich eine einheitliche Analyse für inkrementelle Verben vorgeschlagen, die entweder ein nominales oder ein propositionales Objekt verlangen. Die von mir für das Polnische entdeckten Korrelationen gelten auch für andere slawische (Tschechisch, Russisch) und einige nicht-slawische Sprachen (austronesische Sprachen, Französisch, Ungarisch). / In my dissertation, I investigated a systematic interaction between the perfective aspect of a clause-embedding verb and a truth-oriented interpretation of embedded propositions in Polish. I demonstrated that the so-called reveal-type predicates (‘prove’, ‘reveal’, ‘show [that]’) are in complementary distribution with respect to triggering truth-related meaning of their sentential complements. Whereas perfective variants enforce embedded propositions to be true, imperfective counterparts are almost only compatible with false (or neutral) propositions. I further showed that clause-embedding reveal-type predicates exhibit an incremental structure and can therefore be treated by analogy to verbs that combine with nominal incremental themes. In the former case, we have a gradual creation of a proof, whereas in the latter case, we have a gradual creation of an object like ‘wardrobe’ (maximality of evidence = maximality of a wardrobe). I proposed a novel analysis of incremental theme verbs that combine with either nouns or clauses. According to my analysis, one possible realization of a partial-total affectedness of an incremental theme is a gradual creation of a proof for an embedded proposition. In order to obtain empirical evidence for the (non-)veridicality of (im)perfective reveal-type predicates in Polish, I conducted an acceptability judgement study with 51 Polish native speakers. I further conducted a corpus-based analysis of the frequency of investigated lexemes, which completed the interpretation of results. Apart from Polish, I provided evidence from other Slavic languages (Czech, Russian) and some non-Slavic languages (Austronesian languages, French, Hungarian).

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