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Project factsheet

English title:

Automatic methods of constructing a semantic network of Polish lexemes for natural language processing

Polish title:

Automatyczne metody konstrukcji sieci semantycznej leksemów polskich na potrzeby przetwarzania języka naturalnego

Project type:

A national Ministry of Science and Higher Education research grant (number 3 T11C 018 29)


31 October 2005 ‒ 30 October 2008

Project Web page:


Principal investigator:

Maciej Piasecki


Institute of Applied Informatics, Wrocław University of Technology

Project description

The main objective of the project was to construct a Polish WordNet as economically as possible.

Polish WordNet is a network of lexical-semantic relations, an electronic thesaurus with a structure modelled on that of the Princeton WordNet and those constructed in the EuroWordNet project. Polish WordNet describes the meaning of a lexical unit of one or more words by placing this unit in a network of links which represent such relations as synonymy, hypernyny, meronymy etc.

To reduce the cost of the project, Polish WordNet was built semi-automatically. Lexical relations were automatically recognized in large corpora of Polish, e.g., IPI PAN Corpus) and suggested to linguists/lexicographers via a graphical interface.