National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
Srovnání metod vyhodnocujících výsledky shlukování
Polcer, Ondřej
J. Žižka, O. Polcer: Comparison of methods evaluating results of clustering Diploma thesis, Mendel University in Brno, 2015. This thesis describes in detail data clustering, development of own clustering application, its comparison with the programme Cluto and analysis of results.
Hledání sémantické informace v textových datech s využitím latentní analýzy
Řezníček, Pavel
The first part of thesis focuses on theoretical introduction to the methods of text mining -- Information retrieval, classification and clustering. LSA method is presented as an advanced model for representing textual data. Furthermore, the work describes source data and methods for their preprocessing and preparation used to enhance the effectiveness of text mining methods. For each chosen text mining method there are defined evaluation metrics and used already existing, or newly implemented, programs are presented. The results of experiments comparing the effects of different preprocessing type and use of different models of the source data are then demonstrated and discussed in the conclusion.
Aplikace metod předzpracování při dolování znalostí z textových dat
Kotíková, Michaela
The diploma thesis focuses on unstructured textual data preprocessing in relation to text mining. A series of experiments oriented to text mining is designed and carried out. The effect of different techniques of textual data preprocessing to the entire text mining process and its results is evaluated based on output of the experiments.

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