Papers by Niklas Rach
On the Vector Representation of Utterances in Dialogue Context (L18-1)
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| Challenge: | In recent years, the representation of words as vectors in a vector space has gained a high degree of attention in the research community. |
| Approach: | They introduce a new language resource that represents dialogue utterances in vector space and captures the semantic meaning of those utterrances in the dialogue context. |
| Outcome: | The proposed model captures relevant semantic information by comparing them to manually annotated dialogue acts. |
Evaluation of Argument Search Approaches in the Context of Argumentative Dialogue Systems (2020.lrec-1)
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| Challenge: | Argumentative dialogue systems and chat bots require a database of arguments that matches their requirements. |
| Approach: | They propose a dialogue system that presents arguments by virtual avatar and synthetic speech to users and allows them to rate the presented content in four different categories. |
| Outcome: | The proposed system evaluates arguments retrieved by two state-of-the-art argument search engines and a system based on traditional web search. |