Projecting Multiword Expression Resources on a Polish Treebank
نویسندگان
چکیده
Multiword expressions (MWEs) are linguistic objects containing two or more words and showing idiosyncratic behavior at different levels. Treebanks with annotated MWEs enable studies of such properties, as well as training and evaluation of MWE-aware parsers. However, few treebanks contain full-fledged MWE annotations. We show how this gap can be bridged in Polish by projecting 3 MWE resources on a constituency treebank.
منابع مشابه
Annotation of Multiword Expressions in the Prague Dependency Treebank
We describe annotation of multiword expressions in the Prague Dependency Treebank, using several automatic pre-annotation steps. We use subtrees of the tectogrammatical tree structures of the Prague dependency treebank to store representations of the multiword expressions in the dictionary and pre-annotate following occurrences automatically. We also show a way to measure reliability of this ty...
متن کاملLiteral readings of multiword expressions: as scarce as hen’s teeth
Multiword expressions can have both idiomatic and literal occurrences. Distinguishing these two cases is considered one of the major challenges in MWE processing. We suggest that literal readings should be considered in both semantic and syntactic terms, which motivates their study in a treebank. We propose heuristics to automatically pre-identify candidate sentences that might contain literal ...
متن کاملIdentification of Ambiguous Multiword Expressions Using Sequence Models and Lexical Resources
We present a simple and efficient tagger capable of identifying highly ambiguous multiword expressions (MWEs) in French texts. It is based on conditional random fields (CRF), using local context information as features. We show that this approach can obtain results that, in some cases, approach more sophisticated parserbased MWE identification methods without requiring syntactic trees from a tr...
متن کاملSyntactic Identification of Occurrences of Multiword Expressions in Text using a Lexicon with Dependency Structures
We deal with syntactic identification of occurrences of multiword expression (MWE) from an existing dictionary in a text corpus. The MWEs we identify can be of arbitrary length and can be interrupted in the surface sentence. We analyse and compare three approaches based on linguistic analysis at a varying level, ranging from surface word order to deep syntax. The evaluation is conducted using t...
متن کاملTowards an LFG parser for Polish: An exercise in parasitic grammar development
While it is possible to build a formal grammar manually from scratch or, going to another extreme, to derive it automatically from a treebank, the development of the LFG grammar of Polish presented in this paper is different from both of these methods as it relies on extensive reuse of existing language resources for Polish. LFG grammars minimally provide two levels of representation: constitue...
متن کامل