8 research outputs found
A kvantitatĂv szövegelemzĂ©s lehetĹ‘sĂ©gei a menedzsmenttudományban = Possibilities of quantitative text analysis in management science
A kvantitatĂv szövegelemzĂ©s egyfajta dokumentum, valamint a dokumentumok tartalmát alkotĂł szavak, kifejezĂ©sek csoportosĂtására szolgálĂł, statisztikai mĂłdszerekkel Ă©s eszközökkel megtámogatott eljárások halmaza. LegfĹ‘bb elĹ‘nye, hogy a numerikus adatok által kinyerhetĹ‘kön tĂşl lehetĹ‘vĂ© teszi a további, eddig elĂ©rhetetlennek tűnĹ‘ informáciĂłkhoz valĂł hozzáfĂ©rĂ©st. A kreatĂv szövegelemzĂ©st tehát leginkább akkor használják, amikor a szöveg több informáciĂłt tartalmaz, mint amennyi a számszerűsĂtett adatok alapján kinyerhetĹ‘ lenne. A szöveg- Ă©s tartalomelemzĂ©s mára az egyik legizgalmasabb Ă©s leginkább fĂłkuszált terĂĽlete az adatbányászatnak Ă©s az adatelemzĂ©snek, mind matematikai, statisztikai, mĂłdszertani, mind szoftveres illeszkedĂ©s szempontjábĂłl. Ez a tanulmány egy konkrĂ©t pĂ©ldán keresztĂĽl a szövegelemzĹ‘ eljárások közĂĽl a látens Dirichlet-allokáciĂłt (latent Dirichlet allocation, LDA) mint egy lehetsĂ©ges mĂłdszertani megközelĂtĂ©st mutatja be. ElsĹ‘dleges cĂ©l azt bebizonyĂtani, hogy a szövegelemzĂ©s hosszĂş távĂş Ă©s Ăşjszerű perspektĂvákat jelenthet a menedzsmenttudomány terĂĽletĂ©n. = Quantitative text analysis is a set of procedures for grouping documents and the words and expressions that make up the content of documents, supported by statistical methods and tools. Its main advantage is that in addition to the information that can be extracted from numerical data, it provides a solution for accessing additional information that previously seems unavailable. Thus, text analysis is most commonly used where the text contains more information than could be obtained from quantified data. Text and content analysis is today one of the most exciting and focused areas of data mining and data analysis, both in terms of mathematical, statistical, methodological, and software fit. In this study, latent Dirichlet allocation (LDA) is presented as a possible methodological approach through a concrete example. The primary aim of the article is to show that text analysis can provide long-term and novel perspectives in the fields of management science
Exploiting side information in Bayesian nonparametric models and their applications
My research is to exploit side information into advanced Bayesian nonparametric models. We have developed some novel models for data clustering and medical data analysis and also have made our methods scalable for large-scale data. I have published my research in several journal and conference papers