Fleshing it out: A Supervised Approach to MWE-token and MWE-type Classification

Although some multiword expressions (MWEs) like How do you do? have exclusively idiomatic meaning, other MWEtypes like the phrase kick the bucket may be idiomatic or literal depending on context. The recently developed OpenMWE corpus provides the largest freely available collection of annotated MWE-tokens suitable for supervised classification, but so far its potential has only been superficially investigated and only for classification of MWE-types in the corpus. Instead, we train and evaluate classifiers for crosstype classification and introduce novel features specialised to this task. Our best crosstype classifiers performed as well on non-trained MWE-types as a majority class baseline which has knowledge of the MWE-type.