Central and Eastern European Survey

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Type of Organisation: public
Number of Employees: Less than 10
Activities developed: Research, Education.

My research team is involved in written natural language processing. It is a small team: these are some of my graduated students making their diploma project work under my supervision and former students presently teaching assistants, doctorands, and researchers in other institutions which are my collaboratores. This research does not constitute the main object of our university; it is rather a matter of hobby, of scientific interest which is materialized in published works and studies. In the last two years, our research was supported by a Grant from the National Concil for the Universitary Scientific Research. Our study leads to a standardization for Romanian language concerning the statistical structure of digrams,trigrams, m-grams. (We have developed a new method for the random data sampling from NL in order to obtain the conditional probabilities on a single preceeding letter. Based on this data sample we could determine the conditional probabilities and the digram probabilities with a statistical error control. We further determined the entropies for the first and second approximation to Romanian, including the conditional entropies on a single preceeding letter. For details, see 26 bellow.) We carried out this statistical analysis of printed Romanian having at our disposal some texts (about 21 books meaning more than 15 million characters) printed by Metropol Publishing House (Bucharest). The numerical results we obtained could be of interest for large dictionaries encoding, intelligent OCR, cryptography, etc. Speaking about my concerns, my interest in NL began in 1979 when I completed my PhD thesis with a special chapter developing new enciphering methods for multiple Markov-Chains, with applications to Romanian written language. I resumed these works in the last five years, some results beeing presented in some papers (see 26 bellow). In the university there is also a group involved in Speech (Research and Education). I filled in this questionnaire concerning only the (written) Natural Language involvement.

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