Ruprecht-Karls-Universität Heidelberg
Institut für Computerlinguistik

Bilder vom Neuenheimer Feld, Heidelberg und der Universität Heidelberg

New Developments in Semantic Parsing and Discourse Analysis


Studiengang Modulkürzel Leistungs-
BA-2010 AS-CL, AS-FL 8 LP
Master SS-CL, SS-FL, SS-TAC 8 LP
Magister - -
Dozenten/-innen Anette Frank
Veranstaltungsart Hauptseminar
Erster Termin 20.10.2015
Zeit und Ort Di, 16:1517:45, INF 325 / SR 7 (SR)
Commitment-Frist 20.01.2016



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In the seminar we will be looking at two recent developments in the semantic analysis of discourse that are closely related yet complementary. In the first part we investigate current approaches in shallow and deep semantic parsing and how they can be enhanced by distant supervision techniques using external knowledge bases. The second part focuses on the analysis of extrapropositional meaning, and how to obtain models of discourse that offer a global, high-level view of textual content, to be used in advanced semantic NLP tasks, such as summarization, argumentation or plan recognition.

Semantic Parsing and Linking to Knowledge Graphs
While early approaches in deep semantic parsing are confronted with the lack of appropriate training corpora, linking to large-scale knowledge graphs such as FreeBase or DBPedia has been shown to be effective for solving this resource bottleneck. Distant supervision through linking to knowledge graphs also proves effective in large-scale relation extraction and shallow semantic analysis.

Mining and Representing Opinions and Argumentation
Novel NLP applications investigate "extrapropositional" aspects of meaning in discourse, such as opinion and sentiment towards objects or states of affairs, including the detection of intentions, plans or controversial views, which need to be distinguised from actual facts. We will investigate how such higher-level aspects of meaning can captured using discourse segmentation, topic modeling or graph labeling techniques.

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