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The paper describes the learner corpus composed of English essays written by native Russian speakers. REALEC (Russian Error-Annotated Learner English Corpus) is an error-annotated, available online corpus, now containing more than 200 thousand word tokens in almost 800 essays. It is one of the first Russian ESL corpora, dynamically developing and striving(More)
Distributed vector representations for natural language vocabulary get a lot of attention in contemporary computational linguistics. This paper summarizes the experience of applying neural network language models to the task of calculating semantic similarity for Russian. The experiments were performed in the course of Russian Semantic Similarity Evaluation(More)
This paper presents an approach to detect real-world events as manifested in news texts. We use vector space models, particularly neural embeddings (prediction-based distribu-tional models). The models are trained on a large 'reference' corpus and then successively updated with new textual data from daily news. For given words or multi-word entities,(More)
In this paper we compare the Russian National Corpus to a larger Russian web corpus composed in 2014; the assumption behind our work is that the National corpus, being limited by the texts it contains and their proportions, presents lexical contexts (and thus meanings) which are different from those found 'in the wild' or in a language in use. To do such a(More)
The present paper introduces approach to improve English-Russian sentence alignment , based on POS-tagging of automatically aligned (by HunAlign) source and target texts. The initial hypothesis is tested on a corpus of bitexts. Sequences of POS tags for each sentence (exactly, nouns, adjectives, verbs and pronouns) are processed as " words " and(More)
We present our experience in applying distributional semantics (neural word embeddings) to the problem of representing and clustering documents in a bilingual comparable corpus. Our data is a collection of Russian and Ukrainian academic texts, for which topics are their academic fields. In order to build language-independent semantic representations of(More)