Lukáš Svoboda


2018

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Evaluation of Croatian Word Embeddings
Lukáš Svoboda | Slobodan Beliga
Proceedings of the Eleventh International Conference on Language Resources and Evaluation (LREC 2018)

2016

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UWB at SemEval-2016 Task 5: Aspect Based Sentiment Analysis
Tomáš Hercig | Tomáš Brychcín | Lukáš Svoboda | Michal Konkol
Proceedings of the 10th International Workshop on Semantic Evaluation (SemEval-2016)

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UWB at SemEval-2016 Task 1: Semantic Textual Similarity using Lexical, Syntactic, and Semantic Information
Tomáš Brychcín | Lukáš Svoboda
Proceedings of the 10th International Workshop on Semantic Evaluation (SemEval-2016)

2008

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Czech MWE Database
Karel Pala | Lukáš Svoboda | Pavel Šmerk
Proceedings of the Sixth International Conference on Language Resources and Evaluation (LREC'08)

In this paper we deal with a recently developed large Czech MWE database containing at the moment 160,000 MWEs (treated as lexical units). It was compiled from various resources such as encyclopedias and dictionaries, public databases of proper names and toponyms, collocations obtained from Czech WordNet, lists of botanical and zoological terms and others. We describe the structure of the database and compare the built MWEs database with the corpus data from Czech National Corpus SYN2000 (approx. 100 mil. tokens) and present results of this comparison in the paper. These MWEs have not been obtained from the corpus since their frequencies in it are rather low. To obtain a more complete list of MWEs we propose and use a technique exploiting the Word Sketch Engine, which allows us to work with statistical parameters such as frequency of MWEs and their components as well as with the salience for the whole MWEs. We also discuss exploitation of the database for working out a more adequate tagging and lemmatization. The final goal is to be able to recognize MWEs in corpus text and lemmatize them as complete lexical units, i.e. to make tagging and lemmatization more adequate.