Berenike Loos


2008

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A Semantic Memory for Incremental Ontology Population
Berenike Loos | Lasse Schwarten
Proceedings of the Sixth International Conference on Language Resources and Evaluation (LREC'08)

Generally, ontology learning and population is applied as a semi-automatic approach to knowledge acquisition in natural language understanding systems. That means, after the ontology is created or populated, an expert of the domain can still change or refine the newly acquired knowledge. In an incremental ontology learning framework (as e.g. applied for open-domain dialog systems) this approach is not sufficient as knowledge about the real world is dynamic and, therefore, has to be acquired and updated constantly. In this paper we propose the storing of newly acquired instances of an ontological concept in a separate database instead of integrating them directly into the system’s knowledge base. The advantage is that possibly incorrect knowledge is not part of the system’s ontology but stored aside. Furthermore, information about the confidence about the learned instances can be displayed and used for a final revision as well as a further automatic acquisition.

2006

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Proceedings of the 2nd Workshop on Ontology Learning and Population: Bridging the Gap between Text and Knowledge
Paul Buitelaar | Philipp Cimiano | Berenike Loos
Proceedings of the 2nd Workshop on Ontology Learning and Population: Bridging the Gap between Text and Knowledge

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Scaling Natural Language Understanding via User-driven Ontology Learning
Berenike Loos
Proceedings of the Third Workshop on Scalable Natural Language Understanding

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On2L – A Framework for Incremental Ontology Learning in Spoken Dialog Systems
Berenike Loos
Proceedings of the COLING/ACL 2006 Student Research Workshop

2004

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Resolution of Lexical Ambiguities in Spoken Dialogue System
Berenike Loos | Robert Porzel
Proceedings of the 5th SIGdial Workshop on Discourse and Dialogue at HLT-NAACL 2004

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Making Relative Sense: From Word-graphs to Semantic Frames
Robert Porzel | Berenike Loos | Vanessa Micelli
Proceedings of the 2nd International Workshop on Scalable Natural Language Understanding (ScaNaLU 2004) at HLT-NAACL 2004