Abstract
The German question answering (QA) system InSicht participated in QA@CLEF for the third time. InSicht implements a deep QA approach: it builds on full sentence parses, inferences on semantic representations, and matching semantic representations derived from questions and documents. InSicht was improved for QA@CLEF 2006 as follows: temporal expressions are normalized and temporal deictic expressions are resolved to explicit date representations; the coreference module was extended by a fallback strategy for increased robustness; equivalence rules can introduce negated relations; answer candidates are clustered in order to avoid multiple occurrences of one real-world entity in the answers to a list question; and finally a shallow QA subsystem that produces a second answer stream was integrated into InSicht. The current system is evaluated in an ablation study on the German questions from QA@CLEF 2006.
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Hartrumpf, S., Leveling, J. (2007). Interpretation and Normalization of Temporal Expressions for Question Answering. In: Peters, C., et al. Evaluation of Multilingual and Multi-modal Information Retrieval. CLEF 2006. Lecture Notes in Computer Science, vol 4730. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-74999-8_51
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DOI: https://doi.org/10.1007/978-3-540-74999-8_51
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