Abstract
We describe our ongoing efforts in collecting a Czech-English parallel corpus CzEng. The paper provides full details on the current version~0.9 and focuses on its new features: (1) data from new sources were added, most importantly a few hundred electronically available books, technical documentation and also some parallel web pages, (2) the full corpus has been automatically annotated up to the tectogrammatical layer (surface and deep syntactic analysis), (3) sentence segmentation has been refined, and (4) several heuristic filters to improve corpus quality were implemented. In total, we provide a sentence-aligned automatic parallel treebank of
8.0 million sentences, 93 English and 82 Czech words. CzEng~0.9 is freely available for non-commercial research purposes.