Grammatical error detection using HPSG grammars: Diagnosing common Mandarin Chinese grammatical errors

Computational Grammars can be adapted to detect ungrammatical sentences, effectively transforming them into error detection (or correction) systems. In this paper we provide a theoretical account of how adapt implemented HPSG grammars for grammatical detection. We discuss single input reconstructed in multiple ways and, turn, used specific, high-quality feedback language learners. then move on exemplify with few the most common classes made by learners Mandarin Chinese. conclude some notes concerning adaptation and implementation methods described here ZHONG, an open-source grammar