Adjunct role labeling for Russian
The task of the semantic role labeling usually focuses on identifying and classifying the core, obligatory argu ments of the predicate. The adjuncts of Time, Location, etc. (noncore, modifier arguments) are considered on the periphery of the task  and even doing the easy part of it , despite the fact that they are highly integrated into the clause structure and may nontrivially interact with the meaning of the verb [4, 32]. In this paper, we present experiments on labeling the adjunct roles of LOCATION, TIME, MANNER, DEGREE, REASON, and PURPOSE, based on the manually annotated AdjunctsFrameBank data set. The results show an average F1score of 0.94 on the gold adjunct phrase annotations using the word2vec representations of adjuncts, word2vec representations of pre dicates, and the moprhosyntactic marking of adjuncts. Our findings generally corroborate the theoretical hypothesis on the structural and semantic autonomy and lexicomorphosyntactic specialization of adjuncts. Yet, more com plicated organization of their network is revealed, pointing to the diversity of adjuncts in terms of their distribution and behavior.