Automatic extraction and definition of Lithuanian terms

Monografijoje pristatyti naujausi automatizuoto lietuvių kalbos terminų nustatymo ir apibrėžimo tyrimai. Šie tyrimai remiasi deskriptyviosios terminologijos ir tekstynų lingvistikos principais. Knygoje aprašyta, kaip buvo sudarytas specialusis švietimo ir mokslo tekstynas, kokiais metodais remiantis automatiškai nustatyti galimi terminai, kaip iš jų atsirinkti analizuotos srities terminai, kokia jiems būdinga struktūra, su kokiomis problemomis susidurta bandant automatiškai nustatyti terminų antraštines formas. Didelis dėmesys skirtas metodologijai aptarti, kaip pusiau automatiškai iš tekstyno nustatyti dalykinę informaciją apie terminus, kurią būtų galima panaudoti apibrėžtims sudaryti. Monografijoje pristatyti viso tyrimo praktiniai rezultatai: Švietimo ir mokslo terminų žodynas, Švietimo ir mokslo terminų ontologija.This book presents the most recent advances in the field of Lithuanian terminology extraction as well as the first attempt on automatic extraction of Lithuanian term defining contexts. The first work in descriptive terminology by Lithuanian researchers appeared in early 2000s, i.e. R. Marcinkevičienė (2000) and I. Zeller (dissertation "Term recognition and their analysis", 2005). Nevertheless, the larger proportion of research on Lithuanian terminology is still dominated by the prescriptive view, when a lot of attention and research is given to principles and norms of terminology, as well as diachronic aspects of terminology. Chapter 1 describes differences of descriptive and prescriptive terminology. The authors want to emphasize that the prescriptive terminology involves standardisation and approval of terms, while decisions are based on existing terminology dictionaries, documents, standards, lexicons and databases of approved terms. Whereas in the corpus-based terminology management, which is one of the branches of the descriptive terminology, the main focus is placed on the usage of terms in natural language in a corpus, rather than on the standardisation. The empirical research approaches benefit from various automatic term analysis and term extraction tools, which come in handy in corpus-based terminology management. New terminology research has shown that it is very important to harmonize the methods of prescriptive and descriptive terminology. The combination of both methods allows faster processing of evergrowing data, which is very relevant to challenges of the modern lexicography that include quick and efficient creation of dynamic lexicographical sources