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Słowa znaczące, słowa kluczowe, słowozbiory – o statystycznych metodach wyszukiwania wyrazów istotnych

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Eder M.
Przegląd Humanistyczny
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2016
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vol. 60(3 (454))
31-44
PL
This article discusses automatic extraction of relevant words from sets of texts. The author briefly presents three methods aimed to extract the words from the corpus of words with regard to their frequency, or words whose occurrence next to each other is not random. First, he focuses on the keyword analysis method, then he discusses the Zeta method developed by John Burrows and Hugh Craig, and the third method covered in the article is the topic modelling method, which is becoming very popular recently, and consists in finding clusters of words co-occurring in similar contexts. Topic modelling was intended for a quick content search in large collections of documents. On the basis of 100 Polish novels, the article presents how this method can be used for linguistic studies.
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USING CORPORA TO AID QUALITATIVE TEXT ANALYSIS

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Olejniczak J.
Journal of Education Culture and Society
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2018
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vol. 9
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issue 2
154-164
EN
Aim. The aim of this paper is to present and exemplify a number of basic uses of corpus-based text analysis tools that can supplement and provide additional insight for an otherwise qualitative analysis of a text. I attempt to show that nowadays certain corpus tools are easily accessible to any researcher and can be used to enrich the results of studies concerned with texts.  Methods. This paper comprises the basics of corpus building, the main types of data that can be drawn from a simple corpus and a detailed description of four methods that can aid text analysis: wordlists, concordances, dispersion plots and keywords. Each of those four methods is thoroughly described, including a number of examples of its applications and indicates its possible limitations. Results. The examples provided suggest that even performing a very simple corpus analysis of a text might unveil certain trends and phenomena not noticeable through the classic qualitative text analysis methods (e.g. close reading). The paper argues that corpus research can hence work as an extension of a quantitative analysis (or be its starting point) by examining themes and keywords present in a given text and enrich the results of a qualitative study with a fresh perspective. Finally, the paper claims that basic corpus analysis can, in fact, be successfully employed by researchers who do not have any prior experience with statistics or corpora.  
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