scholarly journals Set-Valued Uncertain  Process: Definition and  Some Properties

2021 ◽  
Author(s):  
‎Alireza Ghaffari-Hadigheh
Keyword(s):  
Time Moment ◽  
Mathematical Framework ◽  
Human Reasoning ◽  
Process Definition ◽  
Uncertain Process ◽  
Main Concept ◽  
Uncertain Set ◽  
Parameter Values ◽  
Different Levels ◽  
Over Time

Abstract Some phenomena are developing over time, while they are uncertain sets at each moment. From an uncertain set, we mean an unsharp concept, such as “illness” and “recovery”, that is not exactly clear, even for an expert. The values of a parameter that are considered “recovery” would guide one to explain the underlying concept quantitatively. For instance, in recovering from some disease, different levels of health might be assumed. Particularly, at each specific time moment, being healthy to some degree would be measured by belonging parameter values to a set of numbers with a specific belief degree. This set might be extracted using imprecisely observed data, while an expert opinion completely expresses the belief degree. Such concepts would direct one to employ uncertainty theory as a strong axiomatic mathematical framework for modeling human reasoning. Another important feature of these sets is their variation over time. For instance, the set defining “recovery” at the beginning stage of recovery in a disease would be completely or partially different from that at other stages. These characteristics result in considering a sequence of evolving sets over time. Analyzing the behavior of such a sequence motivated us to define the set-valued uncertain process. This concept is a combination of uncertain set, uncertain process, and uncertain sequence. Here, we introduce the main concept. Some properties are extracted and clarified, along with some illustrative examples.

Certain models of granular computing based on rough fuzzy approximations

2020 ◽  
Vol 39 (3) ◽  
pp. 2797-2816
Author(s):  
Muhammad Akram ◽  
Anam Luqman ◽  
Ahmad N. Al-Kenani
Keyword(s):  
Social Networks ◽  
Social Network ◽  
Problem Solving ◽  
Granular Computing ◽  
Research Study ◽  
Network Models ◽  
Mathematical Framework ◽  
Human Reasoning ◽  
Accuracy Measures ◽  
Lower And Upper Approximations

An extraction of granular structures using graphs is a powerful mathematical framework in human reasoning and problem solving. The visual representation of a graph and the merits of multilevel or multiview of granular structures suggest the more effective and advantageous techniques of problem solving. In this research study, we apply the combinative theories of rough fuzzy sets and rough fuzzy digraphs to extract granular structures. We discuss the accuracy measures of rough fuzzy approximations and measure the distance between lower and upper approximations. Moreover, we consider the adjacency matrix of a rough fuzzy digraph as an information table and determine certain indiscernible relations. We also discuss some general geometric properties of these indiscernible relations. Further, we discuss the granulation of certain social network models using rough fuzzy digraphs. Finally, we develop and implement some algorithms of our proposed models to granulate these social networks.

Information content of data with respect to models

1983 ◽  
Vol 245 (5) ◽  
pp. R620-R623
Author(s):  
M. Berman ◽  
P. Van Eerdewegh
Keyword(s):  
Experimental Data ◽  
Data Collection ◽  
Information Content ◽  
Mathematical Framework ◽  
Statistical Measures ◽  
Parameter Values ◽  
Collection Strategies

A measure is proposed for the information content of data with respect to models. A model, defined by a set of parameter values in a mathematical framework, is considered a point in a hyperspace. The proposed measure expresses the information content of experimental data as the contribution they make, in units of information bits, in defining a model to within a desired region of the hyperspace. This measure is then normalized to conventional statistical measures of uncertainty. It is shown how the measure can be used to estimate the information of newly planned experiments and help in decisions on data collection strategies.

scholarly journals Potential of ontology for interoperability in e-government

2016 ◽  
Vol 10 (2) ◽  
Author(s):  
Edilson Ferneda ◽  
Fernando William Cruz ◽  
Hércules Antonio Do Prado ◽  
Renato da Veiga Guadagnin ◽  
Laurindo Campos Dos Santos ◽  
...  
Keyword(s):  
European Union ◽  
Electronic Government ◽  
Practical Solution ◽  
Semantic Level ◽  
Legal Question ◽  
Task Time ◽  
Efficient Mechanisms ◽  
Different Levels ◽  
Over Time ◽  
Legal Meaning

Interoperability is one of the fundamental requirements to enable electronic government. Its implementation can be classified into technical, syntactic, semantic, and organizational levels. At the semantic level, ontology is regarded as a practical solution to be considered. In this context, its adoption was identified in several countries, with different levels of maturity and so many focuses as the specific implementations. One of the main challenges to be overcome is the legal question that refers to the legislation to assure “the preservation of the legal meaning of data”. The lack of efficient mechanisms to support the deployment and use of ontologies can turn the overall task time-expensive, restricted in scope, or even unfeasible. Additionally, many initiatives are recent and need to be validated over time. This paper presents a non-exhaustive survey of the state of interoperability in e-government from the perspective of ontologies' use. The cases of Palestine, European Union, Netherlands, Estonia, and Brazil are discussed.

scholarly journals Strategy selection as rational metareasoning

2016 ◽  
Author(s):  
Falk Lieder ◽  
Tom Griffiths
Keyword(s):  
Artificial Intelligence ◽  
Decision Making ◽  
Cost Benefit ◽  
Human Reasoning ◽  
Strategy Selection ◽  
Heuristics And Biases ◽  
Rational Model ◽  
The Mind ◽  
Over Time ◽  
Human Rationality

Many contemporary accounts of human reasoning assume that the mind is equipped with multiple heuristics that could be deployed to perform a given task. This raises the question how the mind determines when to use which heuristic. To answer this question, we developed a rational model of strategy selection, based on the theory of rational metareasoning developed in the artificial intelligence literature. According to our model people learn to efficiently choose the strategy with the best cost-benefit tradeoff by learning a predictive model of each strategy’s performance. We found that our model can provide a unifying explanation for classic findings from domains ranging from decision-making to problem-solving and arithmetic by capturing the variability of people’s strategy choices, their dependence on task and context, and their development over time. Systematic model comparisons supported our theory, and four new experiments confirmed its distinctive predictions. Our findings suggest that people gradually learn to make increasingly more rational use of fallible heuristics. This perspective reconciles the two poles of the debate about human rationality by integrating heuristics and biases with learning and rationality.

scholarly journals Learning Factories 4.0 in technical vocational schools: can they foster competence development?

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Michael Roll ◽  
Dirk Ifenthaler
Keyword(s):  
Learning Environments ◽  
Industry 4.0 ◽  
Positive Development ◽  
Vocational Schools ◽  
Vocational Students ◽  
Technical Competencies ◽  
Digital Competencies ◽  
Development Of Competencies ◽  
Different Levels ◽  
Over Time

AbstractLearning Factories 4.0 are thought to prepare vocational students for the challenges of Industry 4.0. The implementation of those interconnected Learning Factories 4.0 at technical vocational schools may promote the development of subject-related technical competencies as well as multidisciplinary digital competencies. Still, research is scarce with regard to the development of competencies supported through Learning Factories 4.0 in technical vocational schools. Hence this research focusses on subject-related technical and multidisciplinary digital competencies of technical vocational students change due to different levels of Learning Factory 4.0 interaction over time. Three subsequent competence tests with N = 63 technical vocational students were conducted. Findings indicate the benefits of integrating Learning Factories 4.0 for developing subject-related competencies in technical vocational schools. However, the study could not identify a positive development of multidisciplinary digital competencies. The findings of this study can help educators to further develop learning environments with support from Learning Factories 4.0 as well as preparing their learners for the demanding competencies of Industry 4.0.

Temperament and Coping Activity Under Stress of Changing Intensity Over Time

2012 ◽  
Vol 17 (4) ◽  
pp. 326-336 ◽  
Author(s):  
Irena Heszen
Keyword(s):  
Stress Intensity ◽  
Emotional Reactivity ◽  
Self Report ◽  
Sensory Sensitivity ◽  
And Coping ◽  
First Myocardial Infarction ◽  
Different Levels ◽  
Over Time

Temperament is probably an important factor that influences coping activity. The framework of the study was the Regulative Theory of Temperament by Strelau, where six temperamental traits are distinguished: emotional reactivity, perseveration, activity, briskness, sensory sensitivity, and endurance. These traits were hypothesized to be connected to coping activity in accordance with their psychological characteristics. It was also expected that the associations between temperament and coping activity should depend on stress intensity. Participants were 278 diabetics and 232 patients after first myocardial infarction (MI). The study was longitudinal and two diseases had been purposely selected so as to represent stress intensity either increasing (in diabetes) or decreasing (after MI) over time. Temperamental traits as well as coping activity components: cognitive appraisal, affect, and coping strategies were measured using self-report questionnaires. As hypothesized, temperamental traits were connected to coping activity. Phase-related changes in coping activity confirmed an increase in stress levels in diabetics, while cardiac patients tended to experience the situation as more challenging. While the expectation referring to the differential role of temperament under different levels of stress intensity was not confirmed, the connections of temperament with coping activity were found to decrease under long-term stress.

scholarly journals Land, investments and public-private partnerships: what happened to the Beira Agricultural Growth Corridor in Mozambique?

2018 ◽  
Vol 56 (1) ◽  
pp. 87-112 ◽  
Author(s):  
Randi Kaarhus
Keyword(s):  
Direct Investment ◽  
Agricultural Development ◽  
Capital Requirements ◽  
Commercial Agriculture ◽  
Market Strategy ◽  
Agricultural Growth ◽  
Land Grabs ◽  
Resource Dynamics ◽  
Different Levels ◽  
Over Time

AbstractInfluential discourses present Foreign Direct Investment (FDI) as essential for agricultural development in Africa; a parallel, critical debate on ‘land rushes’ has denounced Land Grabs, demanding increased accountability in FDI-based land deals. This article explores an initiative located in central Mozambique, the Beira Agricultural Growth Corridor (BAGC). It shows how the international fertiliser company Yara set out to enrol actors at different levels in business, governance and agricultural development into BAGC as a public-private partnership to promote commercial agriculture. Very soon, however, Yara made shifts in its engagement and market strategy, leaving the BAGC initiative to supporting donors and local producers. The analysis presented here shows how the tension between ‘patient-capital’ requirements, high risks and low immediate returns have shaped this case over time – in a context of a national political economy framed by extractive-resource dynamics.

scholarly journals Self-Reinforcing Processes Governing Urban Sprawl in Belgium: Evidence over Six Decades

2020 ◽  
Vol 12 (10) ◽  
pp. 4097 ◽  
Author(s):  
Ahmed Mustafa ◽  
Jacques Teller
Keyword(s):  
Linear Regression ◽  
Population Density ◽  
Urban Sprawl ◽  
Urban Dispersion ◽  
Dispersion Degree ◽  
Dispersion Patterns ◽  
Study Country ◽  
Per Capita ◽  
Different Levels ◽  
Over Time

Urban sprawl is widely acknowledged as an environmental and socio-economic challenge worldwide. This study examines urban sprawl in Belgium over six decades from 1950 to 2010. We assume that sprawl is a self-reinforcing process, i.e., sprawl is fueling further sprawl over time. The main objective of this study is to examine this assumption. We measure urban sprawl at four different levels in this study: country, regions, municipalities, and 1-km2 cells. Three sprawl indices are employed: the degree of urban dispersion, degree of urban permeation of the landscape, and built-up land uptake per capita. These three indices consider both the growth of built-up areas and population density to measure the magnitude of sprawl. The drivers of urban sprawl have been analyzed at a 1-km2 level. The examined drivers are previous urban dispersion patterns, distance to urban cores, elevation, and slope degree by means of linear regression. Urban sprawl significantly increased between 1950 and 1980, whereas its increase was more moderate between 1980 and 2010. Urban dispersion and permeation strongly affect the Brussels and Flanders regions. The results show that the increase in the degree of dispersion is locally driven by previous values of dispersion; i.e., it provides an adequate milieu for further dispersion. Therefore, our conclusion is that urban sprawl in Belgium tends to be a self-reinforcing process.

Stimulus Parameter Considerations and Individual Differences in Cutaneous Sensitivity to Electropulse Stimulation

1966 ◽  
Vol 23 (3_suppl) ◽  
pp. 1215-1222 ◽  
Author(s):  
R. L. Brown ◽  
R. A. Spern ◽  
K. Schmitt ◽  
A. Solomon
Keyword(s):  
Pain Threshold ◽  
Optimal Parameter ◽  
Single Pulse ◽  
Pulse Number ◽  
Body Region ◽  
Stimulus Parameter ◽  
Msec Duration ◽  
Parameter Values ◽  
Significant Support ◽  
Over Time

The two experiments described were concerned with defining the optimal parameter values for an electropulse stimulus and the extent of S differences. In Exp. I, touch and pain threshold variations were established on 12 Ss as a function of pulse number (1, 4, 8) and pulse duration (0.5, 1.0 msec). Significant support was obtained for use of a single pulse of 0.5-msec. duration. In Exp. II, touch and pain thresholds were obtained on 20 Ss coincident with body region and session variation. The abdomen and chest appear to be ideal electrode sites. S differences over time were discussed.

Do semantic modal maps have a role in a constructionalization approach to modals?

2016 ◽  
Vol 8 (1) ◽  
pp. 97-124 ◽  
Author(s):  
Elizabeth Closs Traugott
Keyword(s):  
Construction Grammar ◽  
Levels Of Abstraction ◽  
Semantic Maps ◽  
Micro Level ◽  
Different Levels ◽  
Over Time ◽  
Conceptual Schemas

My aim in this paper is to show that, in modified form, semantic connectivity maps of the kind developed in van der Auwera & Plungian (1998) and van der Auwera (2013) can be useful for showing the development over time of relationships among polysemous constructions. Since these maps pertain primarily to meaning and are intended as contributions to cross-linguistic generalizations rather than to language-specific grammars, their purpose might seem orthogonal to construction grammar, in which form–meaning pairs are the basic units of grammar. I propose that the semantic maps can usefully be rethought as being of two kinds: schema-construction maps that represent relationships between abstract, conceptual schemas linked to underspecified form, and micro-construction maps that represent relationships between specific constructions. These two kinds of maps capture both form and meaning since they represent form–meaning pairings, but at different levels of abstraction. They can also capture direction of changes, as tendencies at the schema level and specific trajectories at the micro-level. My case study is the development of the marginal modals better, rather, sooner (see Denison & Cort 2010, van der Auwera & De Wit 2010). I show that better is significantly different in distribution and meaning from rather and sooner, and that, although they form a family of micro-constructions, they do not form a tight-knit group. This can be captured well by modified semantic maps.

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