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In this paper we report on a Wizard-of-Oz (WOz) experiment which was conducted in order to collect written empirical data on mathematics tutorial dialogues in German. We present a methodological approach for optimising the gains from WOz empirical studies. We show the results of this approach from our empirical study.

Discourse in formal domains, such as mathematics, is characterized by a mixture of telegraphic natural language and embedded (semi-)formal symbolic mathematical expressions. We present language phenomena observed in a corpus of dialogs with a simulated tutorial system for proving theorems as evidence for the need for deep syntactic and semantic analysis. We… (More)

The paper reports on a comparative study of two approaches to extracting definitional sentences from a corpus of scholarly discourse: one based on bootstrapping lexico-syntactic patterns and another based on deep analysis. Computational Linguistics was used as the target domain and the ACL Anthology as the corpus. Definitional sentences extracted for a set… (More)

- Breck Baldwin, Thomas S. Morton, +5 authors Magdalena Wolska
- 1998

Scoring the performance of a system is an extremely important aspect of coreference algorithm performance. The score for a particular run is the single strongest measure of how well the system is performing and it can strongly determine directions for further improvements. In this paper, we present several di erent scoring algorithms and detail their… (More)

- Christoph Benzmüller, Helmut Horacek, Ivana Kruijff-Korbayová, Manfred Pinkal, Jörg H. Siekmann, Magdalena Wolska
- Cognitive Systems
- 2005

Natural language interaction between a student and a tutoring or an assistance system for mathematics is a new multi-disciplinary challenge that requires the interaction of (i) advanced natural language processing, (ii) flexible tutorial dialog strategies including hints, and (iii) mathematical domain reasoning. This paper provides an overview on the… (More)

- Helmut Horacek, Magdalena Wolska
- Intelligent Tutoring Systems
- 2006

We present three corpus-based studies on symbol declaration in mathematical writing. We focus on simple object denoting symbols which may be part of larger expressions. We look into whether the symbols are explicitly introduced into the discourse and whether the information on once interpreted symbols can be used to interpret structurally related symbols.… (More)

We present a method for determining the context-dependent denotation of simple object-denoting mathematical expressions in mathematical documents. Our approach relies on estimating the similarity between the linguistic context within which the given expression occurs and a set of terms from a flat domain taxonomy of mathematical concepts; one of 7 head… (More)

- Andrea Horbach, Alexis Palmer, Magdalena Wolska
- LREC
- 2014

In this paper we investigate the potential of answer clustering for semi-automatic scoring of short answer questions for German as a foreign language. We use surface features like word and character n-grams to cluster answers to listening comprehension exercises per question and simulate having human graders only label one answer per cluster and then… (More)

- Magdalena Wolska, Mark Buckley, Helmut Horacek, Ivana Kruijff-Korbayová, Manfred Pinkal
- Resource-Adaptive Cognitive Processes
- 2011