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Vortrag von Manfred Stede am Dienstag, 29.05.2018 (16:00 Uhr - GB 3/159)

Montag, 14. Mai 2018. Aus der Kategorie 'Vortragsreihe'.

Das Sprachwissenschaftliche Institut lädt herzlich ein zum Vortrag von

Manfred Stede (Universität Potsdam)

The Potsdam argumentative microtext corpus:
Classification experiments and new extensions.

Argumentative "microtexts" are short texts produced by students in response to a trigger question that invites taking a stance and providing arguments in support of that stance. Our original corpus of 115 texts of this kind, collected in a classroom setting, was published in 2015, together with annotations of the underlying argumentation structure.  In the talk, I first describe our experiments on automatically classifying those structures, which make use of the minimum-spanning tree algorithm, and of Integer Linear Programming.  Then I turn to various extensions made to the corpus just recently: New annotation layers that allow for computing correlations with properties of argumentation structure, as well as an extension of the overall data set by 200 new texts that were obtained via crowdsourcing. I will summarize our experiences with this approach to text production and explain the extra steps needed to make the crowdsourced data compatible to the original corpus.