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An application of the shortest confidence intervals for fraction in controls provided by Supreme Chamber of Control

100%
Zieliński W.
Metody Ilościowe w Badaniach Ekonomicznych
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2012
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vol. 13
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issue 2
134-138
EN
In statistical quality control objects are alternatively rated. It is of interest to estimate a fraction of negatively rated objects. One of such applications is a quality control provided by Supreme Chamber of Control (NIK) to find out a percentage of abnormalities in the work among others of tax offices. Mathematical details of experimental designs for alternatively rated phenomena are given in Karliński (2003). Zieliński (2010b) investigated statistical properties of those experimental designs. In the paper, the application of the shortest confidence intervals for fraction in experimental designs is shown. Those intervals were proposed by Zieliński (2010a).
2
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Addendum no. 3 Theory of errors and statistics. Some thoughts about Gauss

100%
Sheynin O.
Śląski Przegląd Statystyczny
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2014
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issue 12(18)
53-51
EN
It is explained that the theory of errors is the application of the statistical method to the entire process of measuring physical magnitudes. In particular, the present- -day experimental design and exploratory data analysis can be considered as a branch of the error theory.
3

Narrative Writing in Digital Formats: Interpreting the Impact of Audience

100%
Lawrence J. F., Niiya M., Warschauer M.
Psychology of Language and Communication
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2015
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vol. 19
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issue 3
201-221
EN
Digital writing has enabled students to write for a variety of authentic audiences, both in and out of the classroom. As they consider audience, students shoulder a cognitive burden that they must juggle in addition to the task of composition. At the same time, writing provides students with opportunities to craft and express their identities. The ways that identity formation and cognitive load intersect may be particularly complex in digital, online writing environments, as students gain the ability to share and receive feedback from global and local audiences. In this counterbalanced experimental study, 86 seventh- and eighth-grade students responded to two narrative prompts. One prompt was written for the teacher and the other was written for the teacher and peers in an online forum. We examined student writing fluency, mechanical errors, academic word use, and setting. Students were found to be more likely to set narratives in private settings when writing for an audience that included peers. We discuss this finding from cognitive and sociocultural perspectives and how it might inform networked communication research.
4
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Statistical properties of a control design of controls provided by supreme chamber of control

100%
Zieliński W.
Metody Ilościowe w Badaniach Ekonomicznych
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2010
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vol. 11
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issue 1
158-166
EN
In statistical quality control objects are alternatively rated. It is of interest to estimate a fraction of negatively rated objects. One of such applications is a quality control provided by Supreme Chamber of Control (NIK) to find out a percentage of abnormalities in the work among others of tax offices. Mathematical details of experimental designs for alternatively rated phenomena are given in Karliński (2003). There are given requirements for sample sizes, numbers of negative rates, accuracy of estimation and error risks. In the paper, some statistical properties of given plans are investigated.
5
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Experimental Design in Evaluating VaR Forecasts

63%
Małecka M., University of Lodz D. o. S. M.
Acta Universitatis Lodziensis. Folia Oeconomica
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2013
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vol. 286
EN
Following a dynamic development of VaR estimation methods from 90s, in recent literature much attention has been paid to testing procedures designed to evaluate quality of VaR models. There has been a wide-ranging discussion on both – statistical properties and empirical application of the two most popular tests, which are Kupiec test from 1995 that considers the ratio of VaR exceedances and Christoffersen autocorrelation test from 1998. We focused on autocorrelation property and compared Christoffersen test to Ljung Box test of 1978 and to the proposition of Engle and Mangianelli from 2004. The goal of the paper was to explore the design of experiments in the context of evaluating power of autocorrelation tests. We presented and contrasted simulation experiments proposed in the literature, indicated their design influence on the results and proposed a new scheme for power evaluating in autocorrelation tests.
PL
W ślad za dynamicznym rozwojem metod estymacji VaR, począwszy od lat dziewięćdziesiątych ubiegłego wieku, w literaturze pojawiła się obszerna dyskusja dotycząca możliwości testowania statystycznego w kontekście oceny modeli VaR. Z jednej strony powstało wiele prac odnoszących się do własności statystycznych dwóch najpopularniejszych testów – testu Kupca z 1995 roku, który bada udział przekroczeń VaR w szeregu i testu autokorelacji przekroczeń VaR Christoffersena z 1998 roku. Z drugiej strony istnieje bogata literatura dotycząca zastosowań rozważanych testów do empirycznych szeregów czasowych. W niniejszej pracy skoncentrowano się na analizie własności testów autokorelacji i porównano test Christoffersena do testów Ljunga Boxa z 1978 roku i testu Engla i Mangianelli’ego z 2004. Celem pracy było przedstawienie przeglądu eksperymentów symulacyjnych wykorzystywanych do badania mocy testów autokorelacji przekroczeń VaR w odniesieniu do założeń metody Monte Carlo oraz zaprezentowanie własnej propozycji eksperymentu.
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Najnowsze metodologie badawcze w lingwistyce kontaktu i automatyczna ekscerpcja anglicyzmów

63%
Witalisz A.
Język Polski
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2022
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vol. 102
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issue 2
5-22
PL
Artykuł przybliża najnowsze metodologie badawcze stosowane w analizie i opisie obcych zapożyczeń językowych, takie jak badania oparte na uzusie i eksperymentalne, jak też badania korpusowe, włączające automatyczną identyfikację i ekscerpcję niezasymilowanych zapożyczeń właściwych. Pierwsze dwa typy analizy są odpowiedzią na nowe w lingwistyce kontaktu spojrzenie na proces zapożyczania jako akt społeczny, w którym główną rolę, często świadomą, pełnią użytkownicy języka biorcy oraz ich potrzeby nominatywne i ekspresywne. Badanie tych potrzeb jest także możliwe dzięki obszernym korpusom elektronicznym, wyposażonym w najnowsze narzędzia przetwarzania danych językowych, umożliwiających analizę zapożyczeń w autentycznych kontekstach. Przedstawione metodologie, czerpiące z onomazjologiczno-kognitywnych założeń teoretycznych w badaniu zapożyczeń oraz przyjmujące perspektywę socjopragmatyczną, pozwalają analizować te obszary, które w studiach strukturalno-systemowych były pomijane bądź niemożliwe do zbadania.
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The paper presents the newest research methodologies used in the analysis and description of foreign lexical loans, such as the usage-based approach, experimental set-ups, as well as corpus-assisted research that includes automatic identification and excerption of unassimilated loanwords. The usage-based approach and experimental design spring from the revised perception of linguistic borrowing in contact linguistics, seen now as a social act, in which the recipient language speakers play the main role by fulfilling their nominal and expressive needs through conscious lexical choices. This type of research is also possible due to large electronic corpora equipped with the latest data processing tools that enable the analysis of borrowed material in authentic contexts. Rooted in the onomasiological-cognitive theoretical background and assuming a socio-pragmatic perspective, the presented methodologies allow for the analysis of those areas within linguistic borrowing that in structural and systemic research were neglected or unanalysable.
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