| | SLO | ENG | Cookies and privacy

Bigger font | Smaller font

Show document Help

Title:Integracija podatkovnih virov na osnovi ontologij s semantično označenimi storitvami
Authors:ID Grašič, Boštjan (Author)
ID Podgorelec, Vili (Mentor) More about this mentor... New window
Files:.pdf DR_Grasic_Bostjan_2011.pdf (4,09 MB)
MD5: ABC806925A73B3265AB49573B59A4E72
PID: 20.500.12556/dkum/ec86ef05-534f-4a01-8272-e73dfb5f73ce
 
Language:Slovenian
Work type:Dissertation
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:Količina informacij, ki jih hranimo v različnih informacijskih sistemih, raste eksponentno. Ključni izziv, ki se poraja v obdobju vse večje informacijske zasičenosti, je kako na čim bolj učinkovit način obvladovati ter združevati informacije, ki so porazdeljene med heterogenimi podatkovnimi viri. V okviru doktorske disertacije smo razvili pristop, ki omogoča za uporabnika transparentno integracijo heterogenih podatkovnih virov na osnovi ontologij. Inovativnost pristopa predstavlja uporaba storitev v vlogi podatkovnih virov. Storitve so označene s semantičnimi opisi, ki omogočajo samodejno odkrivanje, kompozicijo ter proženje storitev. Takšen pristop omogoča integracijo praktično kateregakoli podatkovnega vira z uporabo odprtih in standardiziranih tehnologij. Ključni prispevki našega raziskovalnega dela so formalni model za integracijo s semantično označenimi storitvami ter algoritmi za distribuirano povpraševanje po podatkih, ki jih zagotavljajo storitve. Na osnovi definiranega modela in algoritmov smo razvili prototip ter izvedli eksperiment, kjer smo razviti prototip primerjali s standardnimi pristopi za delo s semantično označenimi podatki. Na osnovi rezultatov eksperimenta smo izvedli statistično analizo. Rezultati statistične analize so pokazali, da je razvit prototip učinkovitejši od primerjanih pristopov. Razviti prototip se po učinkovitosti signifikantno ne razlikuje le od dveh najbolj učinkovitih pristopov. Na podlagi izvedene raziskave, lahko sklenemo, da uporaba semantično označenih storitev za integracijo podatkovnih virov na osnovi ontologij izboljša fleksibilnost in nima negativnega vpliva na učinkovitost.
Keywords:Integracija podatkov, semantična integracija, ontologija, storitveno orientirana arhitektura, semantične storitve
Place of publishing:Maribor
Publisher:[B. Grašič]
Year of publishing:2011
PID:20.500.12556/DKUM-20728 New window
UDC:004.62:004.775(043.3)
COBISS.SI-ID:15366422 New window
NUK URN:URN:SI:UM:DK:3K1BNLPF
Publication date in DKUM:30.09.2011
Views:2784
Downloads:261
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FERI
:
Copy citation
  
Average score:(0 votes)
Your score:Voting is allowed only for logged in users.
Share:Bookmark and Share



Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.

Secondary language

Language:English
Title:Ontology based information integration using semantically annotated services
Abstract:We are living in a period of increasing saturation of information. The amount of information stored in different information systems is still growing exponentially. In this manner, the key challenge is to find the most efficient way to manage and integrate the information that is distributed among heterogeneous data sources. In this dissertation we have developed a mediator based information integration approach, allowing users transparent integration of heterogeneous data sources using ontologies. The novelty of our approach is the use of services as data providers. Services are annotated with semantic descriptions that enable automated discovery, composition and service invocation. This approach allows integration of practically any data source using open and standardized technologies. The key contributions of our research work are a formal model for information integration using semantically annotated services, and algorithms for querying distributed data sources, where services are used as data providers. We have developed a prototype based on the developed model and algorithms. Using this prototype, we have evaluated our approach by comparing it to existing approaches and technologies. Statistical analysis has been performed based on the results of the experiment. The analysis proved that the prototype is more efficient than the compared approaches. The prototype efficiency does not differ significantly only from two most efficient approaches. Based on the conducted research, we can conclude that using services as data providers for ontology based information integration improves flexibility and does not have a negative impact on efficiency.
Keywords:Information integration, semantic integration, ontology, service oriented architecture, semantic services


Comments

Leave comment

You must log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back
Logos of partners University of Maribor University of Ljubljana University of Primorska University of Nova Gorica