Atlantis Studies in Uncertainty Modelling

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133 articles
Proceedings Article

Assessment of socio-economic development of selected European countries with the use of a modified HDI

Marek Biernacki, Wojciech Guzek
The aim of the paper is to analyse the socio-economic development of selected European countries represented by various social policies, and to verify the hypothesis of different speeds of development within the groups into which these countries divide. The following groups are considered in the analysis:...
Proceedings Article

Adding unpaid work value to income inequality measures in Slovakia

Anna Vallušová, Žaneta Lacová
Income inequality represents one of the central issues that are widely discussed by present-day economists. In Slovakia, significant income inequality linked to disparities between regions persists. The central aim of our paper is to offer an alternative insight into the issue of income inequality measurement...
Proceedings Article

Origin of the state statistical service in Czecho-Slovakia

Prokop Závodský, Ondřej Šimpach
This paper is dedicated to the 100th anniversary of establishing the State Statistical Office (an ancestor of today’s Czech and Slovak statistical offices) in 1919. The paper first describes troubles with organization of the statistical service in Austria-Hungary where the Austrian and Hungarian parts...
Proceedings Article

Unpaid work performed by younger members of household up to 26 years in Slovakia

Mariana Považanová, Ján Kollár, Marián Kika, Gabriela Nedelová
The paper deals with unpaid work in Slovak households whilst focusing upon unpaid work performed by younger members of the household. Studies of unpaid work of people up to 26 years are still not well documented in literature. The aim of this paper is twofold: First, it seeks to answer the question whether...
Proceedings Article

Efficiency of Slovak municipalities’ expenditure on services for senior citizens

Alena Kaščáková, Zuzana Rigová, Katarína Sýkorová
Efficiency in using resources to achieve desired results at the lowest possible cost is not important only for profit-making subjects, but also for non-profit subjects. Economic efficiency of public administration is a permanent topic in Slovakia. Local self-government, represented by municipalities,...
Proceedings Article

Distribution of the wealth of the richest persons in the world

Adam Čabla, Filip Habarta
The aim of this paper is to examine the probability distribution of wealth of the richest persons in the world based on estimates from the CEOWORLD magazine’s rich list for March 2019. Since one can safely assume that there are a tiny number of people out of the whole world’s population in this list,...
Proceedings Article

How to value equity in national accounts?

Jana Kramulová, Jakub Vincenc, Helena Houžvičková
The objective of national accounts is to present a model of the real economy in the most accurate way. It means that not only officially recorded data from business accounting are included, but also model computations are used (e.g. in estimating the size of the shadow economy or correcting a phenomenon...
Proceedings Article

Is one time-series in the business tendency survey able to predict another one? Granger causality between time series

Veronika Ptáčková, Lubomír Štěpánek, Vít Hanzal
A Business Tendency Survey (BTS) is one of popular instruments used for providing rough forecasts of future conditions of the national economy. Economists, journalists and analysts are not the only ones interested in the future development of the economy; ordinary citizens are also attentive to such...
Proceedings Article

Modelling student dropout using statistical and data mining methods

Petr Berka, Luboš Marek, Michal Vrabec
Not completing the study by a large portion of students is a serious problem at universities worldwide. Regardless of the country, numbers are very similar: about one-half of students who enrolled for the bachelor study leave university before obtaining the degree. To deal with this problem, we create...
Proceedings Article

Effects of structural changes in intermediate use on employment using the input-output analysis and the index theory

Karel Šafr, Kristýna Vltavská, Jakub Fischer
The aim of this paper is to investigate the effect of structural changes in intermediate use on employment in the Czech economy. We combine the input-output analysis with the index theory. For the analysis, we use input-output and employment data for the period between the years 2005 and 2015. We focus...
Proceedings Article

Development of regional price levels in the Czech Republic

Petr Musil, Jana Kramulová
Regional price levels attract attention of researchers as well as of general public due to the fact that regional price differences influence the interpretation of regional indicators. The current international approach reflects just price differences among countries, and regional disparities are excluded...
Proceedings Article

Multivariate methods for survey evaluation: A case study of Big Data and the New Digital Divide

Jana Cibulková, Richard Novák, Zdeněk Šulc
The paper evaluates the results of a survey regarding challenges connected to the Big Data phenomenon and the New Digital Divide. Following the authors’ previous research, these challenges consist of issues such as business advantage, privacy intrusion, or big brother effect. Perception of these challenges...
Proceedings Article

Effect of ordinal variable transformations on hierarchical clustering results: A case study on the Big Data phenomenon

Hana Řezanková, Richard Novák
The aim of the paper is to show some possible transformations of ordinal variables in cluster analysis and discuss their effect on hierarchical clustering results. Although several papers comparing different approaches to clustering objects characterized by ordinal variables have been published, the...
Proceedings Article

Time series analysis of the poverty rate for low-educated people in the Czech Republic, Slovakia and Poland over the period 2005 – 2017

Dagmar Blatná
The at-risk-of-poverty rate indicates the proportion of people with disposable income under the poverty threshold. The aim of the present study is to examine the development of the poverty rate indicator in the Czech Republic, Slovakia and Poland over the period 2005 – 2017 in the group of people with...
Proceedings Article

Maintaining the well-being of ageing population in the Czech Republic

Kateřina Gawthorpe, Karel Šafr
This study analyses the problem of ageing which is currently one of the biggest concerns for central authorities in the Czech Republic. The rapidly changing demographic structure has affected the fiscal policy framework. The focus here is on the economic impact of the ageing phenomenon with respect to...
Proceedings Article

On dynamics in a four-dimensional model of a small open economy

Mária Grausová, Miroslav Hužvár, Rudolf Zimka
In the paper, a four-dimensional nonlinear macroeconomic model of a small open economy describing the development of net real national income, real physical capital stock, nominal interest rate and nominal money stock is analysed. The functions of investment, savings, real income tax, liquidity preference...
Proceedings Article

Differences in relative prospective age determined by cohort and period life tables

Tomáš Fiala, Jitka Langhamrová
Increasing the pension age above the usual threshold of 65 years is very often recommended to ensure financial sustainability of old-age pension systems, especially of those based on the PAYG principle. At the same time, a closer and clearer relation between the pension age threshold and the level of...
Proceedings Article

Corporate website evaluation using partial least squares path modelling

Pavol Kráľ, Peter Laco
Almost all businesses and organizations use the World Wide Web in the form of corporate websites. In today’s highly innovative and competitive environment, the level of corporate internet presentations is one of the key success factors. Approaches to corporate website evaluation are very variable. To...
Proceedings Article

Influence of population ageing on macroeconomic productivity

Martina Šimková, Jaroslav Sixta
Labour force of all European countries is ageing and this natural demographic process has its own consequences on economic output and productivity. This issue has been widely discussed in Western countries for several years, but a deep economic and social discussion is still absent in the Czech Republic....
Proceedings Article

Prioritizing the Strategies to Enhance Smart City Logistics by Intuitionistic Fuzzy CODAS

Gulcin Buyukozkan, Fethullah Göçer
Accurate, well-timed, and efficient delivery operations is a must for supply chains and logistics providers’ survival in a digitally enhanced business environment. Sustainability, mobility and livability related objectives of Smart City Logistics (SCL) address the reduction of trucks, congestion and...
Proceedings Article

Dimensionality Reduction and Its F-Transform Representation

Jiří Janeček, Irina Perfilieva
The aim of this contribution is to connect two techniques: the F-transform on a space with a fuzzy partition and dimensionality reduction. We show how a space with a fuzzy partition can be characterized in terms of the graph Laplacian. After making the spectral analysis of the corresponding Laplacian...
Proceedings Article

Towards fuzzy relational Galois connections between fuzzy T-digraphs

Inma P. Cabrera, Pablo Cordero, Emilio Muñoz-Velasco, Manuel Ojeda-Aciego
In this paper, we give the first steps towards a formal definition of fuzzy relational Galois connection between fuzzy sets with arbitrary fuzzy transitive relations (fuzzy T-digraphs), where the two components of the connection are fuzzy relations. To this end we consider, on the one hand, our definition...
Proceedings Article

Formal Equivalence Analysis

Francisco José Valverde Albacete, Carmen Peláez-Moreno, Pablo Cordero, Manuel Ojeda-Aciego
Following R. Wille's lead and suggestion we set out to design a new kind of view onto a formal context analogous but different to Formal Concept Analysis (FCA) and Formal Independent Analysis (FIA). In this instance, we choose to analyse the information in the incidence table in terms of the partitions...
Proceedings Article

WordNet and Prolog: why not?

Pascual Julian-Iranzo, Fernando Saenz-Perez
This paper describes a set of Prolog modules with predicates to access the information stored in the lexical data base WordNet. The aim is to use the dened predicates for empowering (fuzzy) logic programming systems for approximate reasoning tasks. To achieve this goal it is necessary to have means to...
Proceedings Article

Merging Clusters in Summary Structures for Data Stream Mining based on Fuzzy Similarity Measures

Leonardo Schick, Priscilla Lopes, Heloisa Camargo
Fuzzy Clustering is one of the mining techniques that have been used to extract information from Data Streams. In our previous research we have developed an algorithm called d-FuzzStream, a fuzzy version of the Online-Offline Framework, which consists of two steps: an online step, where a summary structure...
Proceedings Article

Prediction quality of Bayesian belief network model for risky behavior: comparison of subsamples with different rates

Alena Suvorova, Alexander Tulupyev
The study investigates the proposed approach for behavior modeling on the base of Bayesian belief networks that allows predicting behavior characteristics using small and incomplete data from surveys about behavior episodes. We explored the prediction quality of the models in case of rare behavior. The...
Proceedings Article

Type-2 Fuzzy Logic Approach for Overloaded Hosts in Consolidation of Virtual Machines in Cloud Computing

Bruno Moura, Guilherme Schneider, Adenauer Yamin, Mauricio Pilla, Renata Reiser
Dynamic consolidation of virtual machines (VMs) is an effective way to improve resource utilization and power efficiency in cloud computing. Determining when it is best to relocate VMs from an overloaded host is one aspect of dynamic VM consolidation that directly influences the resource utilization...
Proceedings Article

On the relationship between L-fuzzifying approximation spaces and L-fuzzifying pretopological spaces

Anand Pratap Singh, Irina Perfilieva
The aim of this contribution is to establish the interrelationship between L-fuzzifying approximation spaces based on reflexive L-fuzzy relations and L-fuzzifying pretopological spaces. This connection is established in the category theoretic setup.
Proceedings Article

An Approach Towards Image Edge Detection Based on Interval-Valued Fuzzy Mathematical Morphology and Admissible Orders

Peter Sussner, Lisbeth Corbacho Carazas
Edge detection is an important step for pre-processing digital images before more advanced methods of image analysis such as segmentation can be applied. There are an infite number of edge detectors that can be derived from pairs of fuzzy dilation and erosion operators. Usually, an edge detector is based...
Proceedings Article

2-Tuple Linguistic Integrated Group Decision Making Methodology for E-Commerce Strategy Selection

Gulcin Buyukozkan, Deniz Uztürk
2-Tuple linguistic model, which is a fuzzy logic based linguistic decision-making tool, enables the use of multi-granulated linguistic variables in decision making. This property facilitates the decision-making process for decision makers (DMs) and provides a comfortable decision-making environment for...
Proceedings Article

Pattern Classification on Complex System Using Modified Gustafson- Kessel Algorithm

Miguel Khatounian Filho, Leo Koki, Renato Aguiar
This work has been focused in the application of Gustafson- Kessel Algorithm in a complex system through a methodology proposed. The complex system here considered will be the financial market. So, the main objective of this paper is to classify objects in two patterns: winner and loser. The methodology...
Proceedings Article

Content Determination for Natural Language Descriptions of Predictive Bayesian Networks

Martín Pereira-Fariña, Alberto Bugarín
The dramatic success of Artificial Intelligence applications has been accompanied by more complexity, which makes its comprehension for final users more difficult and damages trustworthiness as a result. Within this context, the emergence of Explainable AI aims to make intelligent systems decisions and...
Proceedings Article

For Quantum and Reversible Computing, Intervals Are More Appropriate Than General Sets, And Fuzzy Numbers Than General Fuzzy Sets

Oscar Galindo, Vladik Kreinovich
Need for faster and faster computing necessitates going down to quantum level -- which means involving quantum computing. One of the important features of quantum computing is that it is reversible. Reversibility is also important as a way to decrease processor heating and thus, enable us to place more...
Proceedings Article

Scalarization for Approximate Multiobjective Multiclass Support Vector Machine Using the Large-k Norm

Yoshifumi Kusunoki, Keiji Tatsumi
We study a multiclass extension of support vector machine (SVM) based on geometric margin maximization. Since there are different margins for different class-pairs, the maximum-margin SVM can be formulated as a multiobjective optimization problem. This multiobjective multiclass SVM (MMSVM) is difficult...
Proceedings Article

Modelling competing theories

Willem Conradie, Andrew Craig, Alessandra Palmigiano, Nachoem Wijnberg
We introduce a many-valued semantics for basic normal lattice-based modal logic. This semantics is based on reflexive many-valued graphs. We discuss an interpretation and possible applications of this logical framework in the context of the formal analysis of the interaction between (competing) scientific...
Proceedings Article

Modified multivariate F-transform based on B-splines

Martins Kokainis, Svetlana Asmuss
We deal with the higher degree multivariate fuzzy transforms (F-transforms with polynomial components) in the case when generalized fuzzy partition of the Cartesian product of intervals is given by multivariate B-splines. The aim of this paper is to generalize the technique of modified F-transform introduced...
Proceedings Article

Outlier Detection in Location Based Systems By Using Fuzzy Clustering

Basar Oztaysi, Sezi Cevik Onar, Cengiz Kahraman
Customer segmentation has been one of most important decision in marketing. In general, demographics of customers, monetary value of customer transactions, types of product/service used are the sources of segmentation process. In recent years, new technology enabled new sources of data. On of these new...
Proceedings Article

Two theorems from extreme value theory for interval valued events

Katarína Čunderlíková
In papers \cite{BartkovaCunderlikova18, BartkovaCunderlikova18p} we proved the Fisher-Tippett-Gnedenko theorem and the Pickands-Balkema-de Haan theorem on family of intuitionistic fuzzy events. Since between the intuitionistic fuzzy events and the interval valued events exist a connection, so we try...
Proceedings Article

A debate model for cooperative agents to achieve common objectives

Abdelhak Imoussaten, Jacky Montmain
We consider the situation where a group of agents are involved in the achievement of a common goal. Each agent owns a set of actions that are partial solutions for the problem to be solved. Moreover, different agents may have the same actions. In order to decide which action to select from different...
Proceedings Article

Incremental Learning of Fuzzy Decision Trees for Streaming Data Classification

Riccardo Pecori, Pietro Ducange, Francesco Marcelloni
Data stream analysis is growing in popularity in the last years since several application domains require to continuously and quickly analyse data produced by sensors with the aim of, for instance, reacting immediately when problems arise, or detecting new trends. The specificity of these domains imposes...
Proceedings Article

Convex preferences as aggregation of orderings

Marta Cardin
Convexity of preferences is a canonical assumption in economic theory. In this paper we consider a generalized definition of convex preferences that relies on the abstract notion of convex space.
Proceedings Article

Interpolative Boolean Algebra for Generalizations of Intuitionistic Fuzzy Sets

Pavle Milošević, Bratislav Petrović
The idea of this paper is to investigate intuitionistic fuzzy set (IFS) generalizations and make one step further into that direction by introducing interpolative Boolean algebra (IBA) to Liu’s generalized IFS. First, we aim to give an overview of the existing attempts to generalize or alter the definition...
Proceedings Article

Stability of Fuzzy Cognitive Maps with Interval Weights

Istvan Harmati, Laszlo T. Koczy
In fuzzy cognitive maps (FCMs) based modelling paradigm, the complex system's behaviour is gathered by the causal connections acting between its main characteristics or subsystems. The system is represented by a weighted, directed digraph, where the nodes represent specific subsystems or features, while...
Proceedings Article

Transitivity properties of ternary fuzzy relations

Lemnaouar Zedam, Bernard De Baets
Recently, we have introduced six types of composition of crisp ternary relations. These compositions are close in spirit to the definition of the composition of binary relations. In this note, we extend these notions to the fuzzy setting. Based on these types of composition, we introduce several types...
Proceedings Article

Some remarks on topological structures in the context of fuzzy relational mathematical morphology

Alexander Sostak, Ingrida Uljane
In this paper, we develop a topological view point on the subject of mathematical morphology. We shaw that erosion can be interpreted as a certain remote fuzzy interior operator; in its turn dilation can be interpreted as a remote fuzzy closure operator. Further, we introduce two kinds (upper and lower)...
Proceedings Article

Uncertainty-aware similarity measures – properties and construction method

Patryk Żywica, Anna Stachowiak
A concept of uncertainty-aware similarity measure for interval--valued fuzzy sets is being defined and discussed. The aim of the paper is to support the opinion that both definition and construction of such measure should take into account the epistemic nature of compared incomplete (uncertain) information....
Proceedings Article

A Case Study on Wildfire Propagation Modelling Using Evolving Rule Based Fuzzy Cognitive Maps

Joao Paulo Carvalho, Pedro Gregorio
Fuzzy Cognitive Maps (FCM) and other Dynamic Cognitive Maps (DCM) were originally developed as mechanisms to simulate the evolution of complex qualitative dynamic systems. In this paper we present a case study where we show that Evolving DCM (specifically Evolving Rule Based Fuzzy Cognitive Maps, Ev-RBFCM)...
Proceedings Article

Abductive reasoning in normal residuated logic programming via bipolar max-product fuzzy relation equations

David Lobo, Maria Eugenia Cornejo Piñero, Jesús Medina
Fuzzy relation equations have recently been extended to a more general framework in which the unknown variables appear together with their logical negation connectives, giving rise to the called bipolar fuzzy relation equations. This paper shows an abductive procedure for a special kind of normal residuated...
Proceedings Article

A Characterization of Uninorms by Means of a Pre-order they Induce

Dana Hliněná, Martin Kalina
In Hlinena et al. (2014) the authors, inspired by Karacal and Kesicioglu (2011), introduced a pre-order induced by uninorms. This contribution is devoted to a classification of families of uninorms by means of types of pre-orders (and orders) they induce. Philosophically, the paper follows the original...
Proceedings Article

An approach to vocabulary expansion for neural network language model by means of hierarchical clustering

Pavel V. Dudarin, Nadezhda G. Yarushkina
Neural network language models become the main tool to solve tasks in NLP field. These models already have shown state-of-the-art results in classification, translation, named entity recognition and so on. Pre-trained models are distributed freely in the internet, and could be reused with help of transfer...