Evaluating and Extending the Coverage of HPSG Grammars: A Case Study for German Jeremy Nicholson author Valia Kordoni author Yi Zhang author Timothy Baldwin author Rebecca Dridan author 2008-05 text Proceedings of the Sixth International Conference on Language Resources and Evaluation (LREC’08) Nicoletta Calzolari editor Khalid Choukri editor Bente Maegaard editor Joseph Mariani editor Jan Odijk editor Stelios Piperidis editor Daniel Tapias editor European Language Resources Association (ELRA) Marrakech, Morocco conference publication nicholson-etal-2008-evaluating https://aclanthology.org/L08-1025/ 2008-05