| Autor: |
Brück, Tim Vor Der, Busemann, Stephan |
| Zdroj: |
Zeitschrift für Sprachwissenschaft; November 2007, Vol. 26 Issue: 2 p291-315, 25p |
| Abstrakt: |
Tree mapping grammars are used in natural language generation (NLG) to map non-linguistic input onto a derivation tree from which the target text can be trivially read off as the terminal yield. Such grammars may consist of a large number of rules. Finding errors is quite tedious and sometimes very time-consuming. Often the generation fails because the relevant input subtree is not specified correctly. This work describes a method to detect and correct wrong assignments of input subtrees to grammar categories by cross-validating grammar rules with the given input structures. The method also detects and corrects the usage of a category in a grammar rule. The result is implemented in a grammar development workbench and accelerates the grammar writer's work considerably. The paper suggests the algorithms can be ported to other areas in which tree mapping is required. |
| Databáze: |
Supplemental Index |
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