conventional/Renewable Energy Sources

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20 Οκτ 2013 (πριν από 4 χρόνια και 24 μέρες)

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Semantic Web: A Key for Effective Knowledge
Management: A Case Study on Facets of Non
-
conventional/Renewable Energy Sources

By

Abhijit Dasgupta

Library

Indian Association for the Cultivation of Science (IACS)

Kolkata


700032

URL:http://www.iacs.res.in

Why Semantic Web:


To have a control over unprecedented retrieval of large number
hits in any online retrieval against any subject query



To enhance the precision ratio and to keep a balance between
recall value & precision ratio



To bind the facets of any subject at metadata level into an
ontological & Semantic order



To control the function of metadata layer on the digital platform



To ensure that the plug
-
in should be within umbral & penumbral
zone at the time of search operation




Semantic Web Technology Departments


XML (Extensible Mark
-
up Language)



XML Schema



RDF (Resource Descriptive Framework)



RDF Schema



OWL (Web Ontology Language)

Semantic Relationship


SKOS: Semantic Relation (Paradigmatic)



SKOS Broader



SKO Narrower



SKOS Related

Dependence and Extension Model of the Semantic Web




Extensible Mark
-
up Language (XML)/Schema
--


extended by



---


Resource Descriptive Framework (RDF)/Schema
--




extended by
----

Web Ontology Language (OWL)

Why Non
-
conventional/Renewable Energy Sources


The very subject is one of the most sought areas of
interdisciplinary research


It has an enormous literary warrant of web literature over last
decade


Due to the extreme multidisciplinary nature of the subject the
target audience is also vast


The online query on this subject is also multifarious and multi
dimensional


To meet the multifarious query the metadata layer also should
be in an effective ontological structure


Semantic web technology may be a solution for effective web
retieval

Steps involved in building SKOS of the Facets on Non
-
conventional/Renewable Energy Resources


The facets/isolates of the non
-
conventional energy resources
are collected from standard Reference Sources



The facets are then arranged into semantic relational structure
like BT/NT/RT manner



The facets are then transferred into SKOS core semantic
mapping


RDF graph



Translation of the SKOS core RDF graph into XML:RDF program


Semantic Relational Hierarchical arrangement of Facets

BT Non
-
conventional Energy


NT Solar Energy


NT Solar Energy Storage


NT Thermal Storage


NT Electrical Storage


NT Chemical Storage


NT Mechanical Energy Storage


NT Electromagnetic Storage


NT Solar Declination


NT Solar Constant


NT Solar Concentrator


NT Solar Collector


NT Solar Cell Principle


NT Solar Photovoltaic Cells


NT Silicon Photovoltaic Cell


NT Single Crystal Photovoltaic Cell


NT Poly
-
crystal Photovoltaic Cell


NT Amorphous Silicon Photovoltaic Cell




contd..

Semantic Relational Hierarchical arrangement of Facets

BT Non
-
conventional Energy


NT Geothermal Energy


NT Geothermal Gradient


NT Geothermal Heat Pump


NT Geothermal Desalination


NT Geothermal Electricity


NT Geothermal Power Plants


NT Dry Steam Plants


NT Flash Steam Plants


NT Binary Cycle Plants


NT Geothermal Cooling


NT Closed Loop


NT Open Loop


NT Pond Loop


NT Fuel Cells


NT Proton Exchange Fuel Cells


NT High Temperature Fuel Cells


NT SOFC (Solid State Fuel Cells)


NT MCFC (Molten Carbonate Fuel Cells)

Transferring the Facets into SKOS Core Semantic
Mapping


RDF Graph
(Standard Followed


SKOS Core Guide:

http://www.w3.org/TR/2005/WD
-
swbp
-
skos
-
core
-
guide
-
20051102)


Transferring the SKOS Core RDF Graph into XML:RDF
Program


<?xml version="1.0" encoding="UTF
-
8"?>


<rdf:RDF



xmlns:rdf="http://www.w3c.org/1999/02/22
-
rdf
-
syntax
-
ns#"



xmlns:skos="http://www.w3c.org/2004/02/skos/core#">


<skos:concept rdf:about="http://www.example.com/concepts#non
-
conventional energy">



<skos:preflabel>non
-
conventioanl energy</skos:preflabel>



<skos:broader rdf:resource="http://www.example.com/concepts#energy resource"/>


</skos:concept>


<skos:concept rdf:about="http://www.example.com/concepts#solar energy">



<skos:preflabel>solar energy</skos:preflabel>



<skos:broader rdf:resource="http://www.example.com/concepts#non
-
conventional energy”/>


<skos:concept rdf:about="http://www.example.com/concepts#solar energy storage">



<skos:preflabel>solar energy storage </skos:preflabel>



<skos:narrower rdf:resource="http://www.exmaple.com/concepts#solar energy"/>


</skos:concept>


<skos:concept rdf:about="http://www.example.com/concepts#thermal storage">



<skos:preflabel>thermal storage</skos:preflabel>



<skos:narrower rdf:resource="http://www.example.com/concepts#solar energy storage"/>


</skos:concept>


<skos:concept rdf:about="http://www.example.com/concepts#electrical storage">



<skos:preflabel>electrical storage</skos:preflabel>



<skos:narrower rdf:resource="http://www.example.com/concepts#solar energy storage"/>


</skos:concept>


<skos:concept rdf:about="http://www.example.com/concepts#chemical storage">



<skos:preflabel>chemical storage</skos:preflabel>



<skos:narrower rdf:resource="http://www.example.com/concepts#solar energy storage"/>


</skos:concept>


<skos:concept rdf:about="http://www.example.com/concepts#mechanical energy storage">



<skos:preflabel>mechanical energy storage</skos:preflabel>


<skos:narrower rdf:resource="http://www.example.com/concepts#solar energy storage"/>


</skos:concept>


<skos:concept rdf:about="http://www.example.com/concepts#electromagnetic storage">



<skos:preflabel>electromagnetic storage</skos:preflabel>



<skos:narrower rdf:resource="http://www.example.com/concepts#solar energy storage"/>


</skos:concept>


</rdf:RDF>

Conclusion:


The hierarchical facet structure needs constant up
-
dation
according to the dynamic nature of the subject



The vocabulary control mechanism is very necessary for
effective implementation of the SKOS



The SKOS knowledge mapping structure has some limitation in
context of assigning labels



Needs more specific properties as sub
-
properties of existing
SKOS core properties