Evaluation a of a layered approach to question answering over linked data

Walter S, Unger C, Cimiano P, Bär D (2012)
Presented at the The 11th International Semantic Web Conference (ISWC 2012), Boston, USA.

Download
OA
Konferenzbeitrag | Veröffentlicht | Englisch
Abstract / Bemerkung
We present a question answering system architecture which processes natural language questions in a pipeline consisting of five steps: i) question parsing and query template generation, ii) lookup in an inverted index, iii) string similarity computation, iv) lookup in a lexical database in order to find synonyms, and v) semantic similarity computation. These steps are ordered with respect to their computational effort, following the idea of layered processing: questions are passed on along the pipeline only if they cannot be answered on the basis of earlier processing steps, thereby invoking computationally expensive operations only for complex queries that require them. In this paper we present an evaluation of the system on the dataset provided by the 2nd Open Challenge on Question Answering over Linked Data (QALD-2). The main, novel contribution is a systematic empirical investigation of the impact of the single processing components on the overall performance of question answering over linked data.
Erscheinungsjahr
Konferenz
The 11th International Semantic Web Conference (ISWC 2012)
Konferenzort
Boston, USA
PUB-ID

Zitieren

Walter S, Unger C, Cimiano P, Bär D. Evaluation a of a layered approach to question answering over linked data. Presented at the The 11th International Semantic Web Conference (ISWC 2012), Boston, USA.
Walter, S., Unger, C., Cimiano, P., & Bär, D. (2012). Evaluation a of a layered approach to question answering over linked data. Presented at the The 11th International Semantic Web Conference (ISWC 2012), Boston, USA. doi:10.1007/978-3-642-35173-0_25
Walter, S., Unger, C., Cimiano, P., and Bär, D. (2012).“Evaluation a of a layered approach to question answering over linked data”. Presented at the The 11th International Semantic Web Conference (ISWC 2012), Boston, USA.
Walter, S., et al., 2012. Evaluation a of a layered approach to question answering over linked data. Presented at the The 11th International Semantic Web Conference (ISWC 2012), Boston, USA.
S. Walter, et al., “Evaluation a of a layered approach to question answering over linked data”, Presented at the The 11th International Semantic Web Conference (ISWC 2012), Boston, USA, 2012.
Walter, S., Unger, C., Cimiano, P., Bär, D.: Evaluation a of a layered approach to question answering over linked data. Presented at the The 11th International Semantic Web Conference (ISWC 2012), Boston, USA (2012).
Walter, Sebastian, Unger, Christina, Cimiano, Philipp, and Bär, Daniel. “Evaluation a of a layered approach to question answering over linked data”. Presented at the The 11th International Semantic Web Conference (ISWC 2012), Boston, USA, 2012.
Alle Dateien verfügbar unter der/den folgenden Lizenz(en):
Copyright Statement:
This Item is protected by copyright and/or related rights. [...]
Volltext(e)
Access Level
OA Open Access
Zuletzt Hochgeladen
2013-07-30T14:24:07Z

Export

Markieren/ Markierung löschen
Markierte Publikationen

Open Data PUB

Suchen in

Google Scholar