Ingo Schröder

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Based on the working hypothesis that gradation is a central phenomenon in natural language, this thesis proposes the grammar formalism of weighted constraint dependency grammars (WCDG) as a unified framework for the treatment of gradation. Gradation can be found in different forms in natural language: as a preference for one outcome over another or as an(More)
Based on constraint optimization techniques, an architecture for robust parsing of natural language utterances has been developed. The resulting system is able to combine possibly contradicting evidence from a variety of information sources, using a plausibility-based arbitration procedure to derive fairly rich structural representations, comprising aspects(More)
Natural language parsing is conceived to be a procedure of disambiguation, which successively reduces an initially totally ambiguous structural representation towards a single interpretation. Graded constraints are used as means to express wellformedness conditions of different strength and to decide which partial structures are locally least preferred and,(More)
In this paper, parsing with dependency grammar is modeled as a constraint satisfaction problem. A restricted kind of constraints is proposed, which is simple enough to be implemented efficiently, but which is also rich enough to express a wide variety of grammatical well-formedness conditions. We give a number of examples to demonstrate how different kinds(More)
Smooth (also called differentiable) extensions of generalized cohomology theories recently became an intensively studied mathematical topic with many applications ranging from arithmetic geometry to string theory. Foundational contributions are [CS85], [Bry93] (in the case of ordinary cohomology) and [HS05]. The latter paper gives among many other results a(More)
Der Konsum verschiedener Lebensmittel wie Milch oder Pizza kann zu insulinotropen, akneinduzierenden Effekten führen, die auf Signaltransduktionsebene molekularbiologisch erklärt werden können. Den Zusammenhang von Ernährung und Akne hat Prof. Dr. Bodo C. Melnik in einem kürzlich veröffentlichen Review dargestellt.
If the student of a foreign language is expected to beneet from the interactive nature of computerr based tutoring systems, solutions are required which combine the ability to accept free form input with the production of helpful feedback on the quality of the utterances received. A solution is presented which provides language learning systems with the(More)
The results of an experiment are presented in which an approach for robust parsing has been applied incrementally. They con rm that due to the robust nature of the underlying technology an arbitrary prex of a sentence can be analysed into an intermediate structural description which is able to direct the further analysis with a high degree of reliability.(More)
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