Morphology
Universal part-of-speech tags and universal features in the Latvian data have been obtained by an automatic conversion of the Latvian Treebank morphological tags, also taking into account syntactic roles (to distinguish DET from PRON), lemmas and wordforms.
Lemmas from Latvian Treebank is used as-is except “words with spaces”, where spliting on whitespaces provides correct result in all known cases.
Currently no language specific tags or features are used.
Known discrepancies
- All words lacking Latvian morphology are marked as residuals or abrievations in Latvian Treebank. Thus, sometimes it is impossible to convert automaticaly correctly, and something that should be labeled as noun or adjective in UD are mislabeled as X.
- In Latvian subordinate clause can be introduced by an adverb, e.g., kad “when”, kur “where”, or noun kuriene “whereabouts” in prepositional construction and these cases can not be automatically relabeled as SCONJ.
- Some adjectivized participles are not marked with VerbForm
=Partand has no Voice feature, if original treebank has no such information. - Some adverbs that have been formed from adjectivized participles, e.g., ziedošāk “in a more flowering manner”, peļami “in a blameworthy manner”, are not marked
VerbForm=Trans, if original treebank has no such information. - Adverbs that have been formed from adjectives, e.g., labi “in a good manner”, labāk “in a better manner”, vislabāk “in the best manner”, has no Degree feature (they should!), because original treebank has no such information.
- Negatives are marked only for verbs as treebank contains no such information for other parts of speach and adding them authomatically would introduce too much errors.
- Reflexiveness is marked on verbs.
- Nouns denominating names of the fractions, e.g. trešdaļa “third part”, simtdaļa “hundred part”, are not currently labeled as NumType
=Frac. - Nouns denominating names of large numbers, e.g. simts “hundred”, tūkstotis “thousand”, might not be labeled as
NumType=Ord.