scholarly journals Creation of a knowledge management model based on CBR

2021 ◽  
Vol 4 (1) ◽  
pp. 19-28
Author(s):  
Ibrahima Gueye ◽  
Abdoulaye Kebe ◽  
Moustapha Diop
Keyword(s):  
Knowledge Base ◽  
The Other ◽  
Management Model ◽  
Electricity Distribution ◽  
Solar Photovoltaic ◽  
Distribution Grid ◽  
Maintenance Activity ◽  
Maintenance Technicians ◽  
Maintenance Activities ◽  
The One

This paper proposes a solution to facilitate maintenance activities associated with stand-alone solar photovoltaic installations in our developing countries. The autonomous photovoltaic solar installation is not connected to the electricity distribution grid. It meets the electricity needs on the one hand, of those who are too far away and who do not have access to the distribution grid. On the other hand, those who wish to overcome the constraints of connection to the electrical distribution grid. Our work focuses on the capitalization of knowledge in maintenance activity. The goal is to propose a model capable of helping maintenance technicians during their interventions by providing them with knowledge elements that will be drawn from a knowledge base. This knowledge base is built from the knowledge collected during previous maintenance activities in a given solar photovoltaic installation.

scholarly journals ATLAS Technical Coordination Expert System

2019 ◽  
Vol 214 ◽  
pp. 05035
Author(s):  
Ignacio Asensi Tortajada ◽  
André Rummler ◽  
George Salukvadze ◽  
Carlos Solans Sánchez ◽  
Kendall Reeves
Keyword(s):  
Expert System ◽  
Fault Tree Analysis ◽  
Principal Component ◽  
The Other ◽  
Detailed Knowledge ◽  
Electricity Distribution ◽  
Web Based ◽  
Risk Assessment Models ◽  
Gas Cooling ◽  
The One

When planning an intervention on a complex experiment like ATLAS, the detailed knowledge of the system under intervention and of the interconnection with all the other systems is mandatory. In order to improve the understanding of the parties involved in an intervention, a rule-based expert system has been developed. On the one hand this helps to recognise dependencies that are not always evident and on the other hand it facilitates communication between experts with different backgrounds by translating between vocabularies of specific domains. To simulate an event this tool combines information from different areas such as detector control (DCS) and safety (DSS) systems, gas, cooling, ventilation, and electricity distribution. The inference engine provides a list of the systems impacted by an intervention even if they are connected at a very low level and belong to different domains. It also predicts the probability of failure for each of the components affected by an intervention. Risk assessment models considered are fault tree analysis and principal component analysis. The user interface is a web-based application that uses graphics and text to provide different views of the detector system adapted to the different user needs and to interpret the data

scholarly journals Reasoning About Typicality and Probabilities in Preferential Description Logics

2020 ◽  
Author(s):  
Laura Giordano ◽  
Valentina Gliozzi ◽  
Antonio Lieto ◽  
Nicola Olivetti ◽  
Gian Luca Pozzato
Keyword(s):  
Knowledge Base ◽  
Minimal Model ◽  
Description Logics ◽  
The Other ◽  
Rational Closure ◽  
Preferential Semantics ◽  
Concept Combination ◽  
Basic Concepts ◽  
The One ◽  
Property Inheritance

In this work we describe preferential Description Logics of typicality, a nonmonotonic extension of standard Description Logics by means of a typicality operator T allowing to extend a knowledge base with inclusions of the form T(C) ⊑ D, whose intuitive meaning is that “normally/typically Cs are also Ds”. This extension is based on a minimal model semantics corresponding to a notion of rational closure, built upon preferential models. We recall the basic concepts underlying preferential Description Logics. We also present two extensions of the preferential semantics: on the one hand, we consider probabilistic extensions, based on a distributed semantics that is suitable for tackling the problem of commonsense concept combination, on the other hand, we consider other strengthening of the rational closure semantics and construction to avoid the so called “blocking of property inheritance problem”.

scholarly journals Consolidation via Tacit Culpability Measures: Between Explicit and Implicit Degrees of Culpability

2021 ◽  
Author(s):  
Jandson S. Ribeiro ◽  
Matthias Thimm
Keyword(s):  
Fixed Point ◽  
Knowledge Base ◽  
Special Class ◽  
Belief Change ◽  
Minimal Change ◽  
The Other ◽  
Preference Relations ◽  
Other Hand ◽  
The One ◽  
Rationality Postulates

Restoring consistency of a knowledge base, known as consolidation, should preserve as much information as possible of the original knowledge base. On the one hand, the field of belief change captures this principle of minimal change via rationality postulates. On the other hand, within the field of inconsistency measurement, culpability measures have been developed to assess how much a formula participates in making a knowledge base inconsistent. We look at culpability measures as a tool to disclose epistemic preference relations and build rational consolidation functions. We introduce tacit culpability measures that consider semantic counterparts between conflicting formulae, and we define a special class of these culpability measures based on a fixed-point characterisation: the stable tacit culpability measures. We show that the stable tacit culpability measures yield rational consolidation functions and that these are also the only culpability measures that yield rational consolidation functions.

The Creation of High-Quality Microhabitats for Small Business in the City Agglomeration

2018 ◽  
Vol 6 (4) ◽  
pp. 4-10
Author(s):  
В. Бородин ◽  
V. Borodin ◽  
В. Химочка ◽  
V. Himochka
Keyword(s):  
Small Business ◽  
External Environment ◽  
Agglomeration Economies ◽  
The Other ◽  
Management Model ◽  
Effective Management ◽  
High Quality ◽  
Other Hand ◽  
The One ◽  
The City

For many years economic theorists are working on issues of development and functioning of business. This is the topic of many articles, it is made numerous findings and proposals concerning the issues of planning, efficiency management, distribution of profits, etc. Along with this, the influence of external environment on individual businesses is not sufficiently researched. The most sensitive to external microenvironment small business is concentrated mainly in the major cities, agglomeration systems. On the one hand, it creates the basis for agglomeration economies, on the other hand, it is entirely dependent on the administrative and managerial processes occurring in it. In this regard, the establishment of an effective management model agglomeration can improve the performance of the business. What models of agglomeration systems are there? Which one is the most effective? The article considers what problems have authorities in the organization of this process.

scholarly journals Normal forms of conditional knowledge bases respecting system P-entailments and signature renamings

2021 ◽  
Author(s):  
Christoph Beierle ◽  
Jonas Haldimann
Keyword(s):  
Normal Form ◽  
Knowledge Base ◽  
Normal Forms ◽  
Nonmonotonic Reasoning ◽  
Knowledge Bases ◽  
The Other ◽  
Conditional Knowledge ◽  
System P ◽  
The One ◽  
Model Equivalence

AbstractConditionals are defeasible rules of the form If A then usually B, and they play a central role in many approaches to nonmonotonic reasoning. Normal forms of conditional knowledge bases consisting of a set of such conditionals are useful to create, process, and compare the knowledge represented by them. In this article, we propose several new normal forms for conditional knowledge bases. Compared to the previously introduced antecedent normal form, the reduced antecedent normal form (RANF) represents conditional knowledge with significantly fewer conditionals by taking nonmonotonic entailments licenced by system P into account. The renaming normal form(ρNF) addresses equivalences among conditional knowledge bases induced by renamings of the underlying signature. Combining the concept of renaming normal form with other normal forms yields the renaming antecedent normal form (ρ ANF) and the renaming reduced antecedent normal form (ρ RANF). For all newly introduced normal forms, we show their key properties regarding, existence, uniqueness, model equivalence, and inferential equivalence, and we develop algorithms transforming every conditional knowledge base into an equivalent knowledge base being in the respective normal form. For the most succinct normal form, the ρ RANF, we present an algorithm KBρra systematically generating knowledge bases over a given signature in ρ RANF. We show that the generated knowledge bases are consistent, pairwise not antecedentwise equivalent, and pairwise not equivalent under signature renaming. Furthermore, the algorithm is complete in the sense that, when taking signature renamings and model equivalence into account, every consistent knowledge base is generated. Observing that normalizing the set of all knowledge bases over a signature Σ to ρ RANF yields exactly the same result as KBρra (Σ), highlights the interrelationship between normal form transformations on the one hand and systematically generating knowledge bases in normal form on the other hand.

scholarly journals Identification of wavelengths from the visible spectrum by means of Arduino for the generation of a knowledge base managed by PROLOG

2018 ◽  
Vol 210 ◽  
pp. 02048
Author(s):  
Pinedo Arriaga O. Ts’zul ◽  
Pinedo Arraiga Carlos D. ◽  
Herrera Alvarado Eduardo ◽  
Tinoco Varela David
Keyword(s):  
Knowledge Base ◽  
Programming Language ◽  
Physical Environment ◽  
Intelligent Systems ◽  
Visible Spectrum ◽  
The Other ◽  
Data Management System ◽  
Software And Hardware ◽  
Physical Variables ◽  
The One

PROLOG is a programming language widely used in the generation of expert and intelligent systems, generally limited to data that is entered directly by a user in the form of software, having little or no interaction with data that is captured directly from a physical environment. This paper presents an implementation of an interface that detects the wavelengths of the visible spectrum, that is, identifies colors, colors that are stored in a knowledge base and then managed by PROLOG. This interface consists of two parts, software and hardware. The hardware is designed by means of the Arduino UNO development board, where a TCS3200 sensor is used. For the development of the software, two tools have been used, on the one hand, the standard programming of the Arduino IDE terminal has been used to manage the inputs and outputs of the Arduino board, and on the other hand, a data management system has been generated, in which PROLOG manages all the data obtained from hardware. This scheme seeks to generate color classifications in a dynamic and intelligent way in the future. The proposed system has the advantage that it is highly economical, easy to perform, uses the logical paradigm of programming, and opens the way to the design of intelligent systems managed by PROLOG from a monitoring of physical variables.

An Organizational Approach to Public Governance

2018 ◽  
Author(s):  
Morten Egeberg ◽  
Jarle Trondal
Keyword(s):  
Knowledge Base ◽  
Organizational Design ◽  
Organizational Factors ◽  
The Other ◽  
Public Governance ◽  
Independent Variables ◽  
The One ◽  
Governance Processes ◽  
Systematic Knowledge ◽  
Organizational Approach

This chapter launches a general organizational approach to public governance. It outlines key theoretical dimensions that cut across governance structures and processes horizontally as well as vertically, thus paving the way for integrating separate empirical analyses into a coherent theoretical whole. Moreover, the organizational (independent) variables outlined represent classical dimensions in the organization literature that are generic in character. This allows for generalizations across time and space. The chapter also highlights the potential for organizational design that follows from our approach. By building systematic knowledge on how organizational factors shape governance processes on the one hand, and how organizational factors themselves might be deliberately changed on the other, the chapter offers a framework for developing a knowledge base for organizational design.

scholarly journals Management of reindeer husbandry in Norway – power-sharing and participation

Rangifer ◽  
2008 ◽  
Vol 28 (1) ◽  
pp. 53 ◽  
Author(s):  
Birgitte Ulvevadet
Keyword(s):  
Power Sharing ◽  
The Other ◽  
Management Model ◽  
Public Officials ◽  
Reindeer Husbandry ◽  
Administrative Management ◽  
The Government ◽  
The One ◽  
Management Functions ◽  
Paper Abstract

Many governments have come to realize that the best way to manage natural resources is to include the resource users in order to increase legitimacy for governance. For the Sami reindeer industry, the Norwegian government has implemented two different management models in order to meet this challenge. On the one hand, there is a corporative management model where a few democratically elected reindeer owners represent the whole industry in the annual negotiations with the government. On the other hand, there is a co-management model where reindeer owners are represented in boards at the local, regional and national levels where the government has delegated a number of management functions. In addition, there is also a hierarchical administrative management system, with only public officials as employees. Nevertheless, through media, surveys and interviews, there has been observed some dissatisfaction among reindeer owners; they claim that the system is not inclusive. I argue that the election of reindeer owners to the different co-management boards and the election of reindeer owners to the corporative units have been challenging because it is difficult to establish systems of representation that are fair for everyone. I also argue that it is complicated to make such comprehensive systems work in practice, as initially planned on paper. Abstract in Norwegian / Sammendrag:Forvaltningen av reindriften i Norge – maktfordeling og deltakelseMyndigheter i mange land har erkjent at å innbefatte ressursbrukere i forvaltningsmessige beslutningsprosesser skaper en mer rettmessig forvaltningspolitikk. For å øke medvirkningen for ressursbrukere har norske myndigheter iverksatt to ulike forvaltningsmodeller i den samiske reindriften. På den ene siden er det innført et korporativt system hvor utvalgte reineiere representerer reindriften i de årlige forhandlingene med myndighetene. På den andre siden er det iverksatt et medforvaltningssystem hvor reineiere er representert i styrer på lokalt, regionalt og nasjonalt nivå. Staten har også delegert en del forvaltningsgjøremål til disse styrene. Likevel har det gjennom media, spørreundersøkelser og intervjuer, kommet frem at noen reineiere er misfornøyde med forvaltningssystemet og at de føler seg ekskludert fra deltakelse. Jeg argumenterer derfor for at oppnevningen av reineiere til de ulike medforvaltningsstyrene og oppnevning av reineiere til det korporative organ er en delvis uløst utfordring fordi det er vanskelig å etablere et representasjonssystem som føles rettferdig for alle. Jeg påviser også at det er vanskelig å få slike sammensatte systemer til å fungere like godt i praksis som de var planlagt.

Research of Low Voltage Distribution Grid’s Reliability

2014 ◽  
Vol 577 ◽  
pp. 572-575
Author(s):  
Lei Tian ◽  
Yuan Hong ◽  
Wen Yuan Li ◽  
Qing Feng Zhang
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Safety Management ◽  
Low Voltage ◽  
Supply System ◽  
The Other ◽  
Voltage Distribution ◽  
Distribution Grid ◽  
Structure Characteristics ◽  
The One

Management of power supply reliability is not only the quality management of equipment and power supply system, but also the safety management of equipment’s operation and power supply system’s maintenance. In order to analysis the reliability of 10kV distribution grid, on the one hand, this paper analyzed the structure characteristics of 10kV distribution grid and four kinds of wiring patterns, which were the main parts of 10kV distribution grid. On the other hand, it pointed out the reasons, which affected the distribution grid’s reliability and discussed the ways to improve the 10kV distribution grid’s reliability.

scholarly journals Environmental management of coastal careers along the Doukkala-Abda linea

2021 ◽  
Vol 298 ◽  
pp. 02001
Author(s):  
Toufik Remmal ◽  
Halima Jounaid ◽  
Fouad Amraoui
Keyword(s):  
Environmental Management ◽  
Public Safety ◽  
The Other ◽  
Management Model ◽  
Other Hand ◽  
The Creation ◽  
The One ◽  
Sand And Gravel ◽  
Harmful Effects

This study proposes an environmental management model for sand and gravel quarries along the coastline from Doukkala to Abda. It aims at the one hand; the creation of a regional database bringing together all the quarries to identify and characterize the materials exploited as well as the major impacts and risks associated with subsequent physiographic changes; and on the other hand to develop intervention mechanisms to prevent, reduce or even eliminate the harmful effects of abusive exploitation on the environment and public safety, while taking into account the specificities of the region.

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