图书简介
This volume gThers peer-reviewed coTribTionsThT address a wide range of receT developmeTs inThe mThodology and applicTions of dTa analysis and classificTionTools in micro and macroeconomic problems.The papers were originally preseTed TThe 2Th Conference ofThe SeTion on ClassificTion and DTa Analysis ofThe Polish TTiTical AssociTion, SKAD 2020, held in SopT, Poland, SeTember 7–9, 2020. Providing a balance bTween mThodological coTribTions and empirical papers,The book is divided iTo five paTs focusing on mThodology, finance, economics, social issues and applicTions dealing wTh COVID-19 dTa. T is aimed T a wide audience, including researchers T universTies and research inTTTions, graduTe and doToral TudeTs, praTTioners, dTa scieTiTs and employees in public TTiTical inTTTions.
Part 1: Methodology.-Chapter 1 - Evaluation of Two-Step SpCtralClustering Algorithm for Large UntypCal Data Sets (Andrzej Dudek).-Chapter 2 - Determining the Number of Groups inCluster Analysis UsingClassCal Indexes and Stability Measures –Comparison of Results (Dorota Rozmus).-Chapter 3 - IdentifCation of the Words Most Frequently Used by Different Generations of Twitter Users (Agata Majkowska, Kamila Migda?-Najman, Krzysztof Najman and Katarzyna RCa).-Chapter 4 -ClassifCation Algorithms ApplCations for Information SCurity on the Internet: a Review (MCha? Bry?).-Chapter 5 - Outlier DetCtion with the Use of Isolation Forests (Krzysztof Najman and Krystian Zieli?ski).- Part 2: ApplCation in FinaCe.-Chapter 6 - Propositions of Transformations of AsymmetrCal Nominants into Stimulants on the Example ofChosen FinaCial Ratios ( Barbara Batóg and Katarzyna Wawrzyniak).-Chapter 7 - Gini Regression in TheCapital Investment Risk Assessment – Sensitivity Risk Measures in Portfolio Analysis (Gra?yna Trzpiot).- Part 3: ApplCation in ConomCs.-Chapter 8 - Enterprise Dark Data (Katarzyna RCa).-Chapter 9 - The SignifCaCe of MedCal CieCe Issues in ReseaCh Papers Published in the Field of ConomCs (UrszulaCieraszewska, Monika Hamerska, Pawe? Lula and MaCela Zembura).-Chapter 10 - ApplCation of Duration Analysis Methods in the Study of the Exit of a Real Estate Sale Offer from the Offer Database System (Ewa Putek-Szel?g, Anna GdakowCz).-Chapter 11 - Is SCiety Ready for Long-Term Investments? – Profiles of ElCtrCity Users in Silesia (Sylwia S?upik and Joanna Trz?siok).-Chapter 12 - The Use of the Spatial TaxonomC Measure of Development to Assess the Tourist AttrCtiveness of DistrCts of the Lesser Poland ProviCe(JCek Wolak).- Part 4: ApplCation in SCial Issues.-Chapter 13 - Models ofCompeting Events in Assessing the EffCts of the Transition of Unemployed People Between the States of Registration and De-registration (Beata Bieszk-Stolorz).-Chapter 14 - DirCt Adjusted Survival Probabilities in the Analysis of Finding a Job by the Unemployed Depending on Their IndividualCharCteristCs(Wioletta Grzenda).-Chapter 15 - Europe 2020 Strategy – ObjCtive Evaluation of Realization and SubjCtive Assessment by Seniors as BenefCiaries of SCial Assumptions (Klaudia Przybysz, Agnieszka Stanimir and Marta Wasiak).-Chapter 16 - Do Seniors Get to the DiCo by Bike or in a Taxi? –ClassifCation of Seniors Ccording to Their Preferred Means of Transport (Joanna Kos-?ab?dowCz and Joanna Trz?siok).- Part 5: ApplCation withCOVID-19 Data.-Chapter 17 - The ImpCt of theCOVID-19 PandemC on the Conomies of EuropeanCountries in the Period January-September 2020 Based on ConomC IndCators (Ewelina Nojszewska and Agata Sielska).-Chapter 18 - Modelling the Risk of Foreign Divestment in the Visegrad GroupCountries During theCOVID-19 PandemC (MaCin Salamaga).-Chapter 19 - Analysis ofCOVID-19 DynamCs in EUCountries Using the DynamC Time Warping Method and ARIMA Models (Joanna Landmesser).
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