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Abstract

The article presents Charles Taylor’s critical philosophy of language and it reviews his recent book on the human linguistic capacity. Critical philosophy of language is understood here as a broad (philosophical, social and political) perspective on language characterized by multifaceted concern with the linguistic and cognitive mechanisms involved in language use. The paper discusses Taylor’s interest in language and philosophy of language, and focuses on his seminal distinction between the ‘designative-instrumental’ and ‘constitutive-expressive’ theories of language. In the former theory language is understood within the confi nes of Cartesian representational epistemology, whereas in the latter language constitutes meaning and shapes human experience (one of the features important for defi ning the critical approach to philosophy of language).

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Authors and Affiliations

Piotr Stalmaszczyk
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Abstract

The paper presents the results of the application of the hierarchical clustering methods for the classification of the acoustic emission (AE) signals generated by eight basic forms of partial discharges (PD), which can occur in paper-oil insulation of power transformers. Based on the registered AE signals from the particular PD forms, using a frequency descriptor in the form of the power spectral density (PSD) of the signal, their representation in the form of the set of points on plane XY was created. Next, these sets were subjected to analysis using research algorithms consisting of selected clustering methods. Based on the suggested numeric performance indicators, the analysis of the degree of reproduction of the actual distribution of points showing the particular time waveforms of the AE signals from eight adopted PD forms (PD classes) in the obtained clusters was carried out. As a result of the analyses carried out, the clustering algorithms of the highest effectiveness in the identification of all eight PD classes, classified simultaneously, where indicated. Within the research carried out, an attempt to draw general conclusions as to the selection of the most effective hierarchical clustering method studied and the similarity function to be used for classification of the selected basic PD forms.
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Bibliography

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Authors and Affiliations

Sebastian Borucki
1
Jacek Łuczak
1
Marcin Lorenc
1

  1. Opole University of Technology, Opole, Poland

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