A apresentação está carregando. Por favor, espere

A apresentação está carregando. Por favor, espere

Franz-Josef Katzdobler Heraldo Pimenta Borges Filho Project ISKM, 2008/2009 1 Knowledge Extraction from the Web (ISEWO) Franz-Josef Katzdobler Heraldo.

Apresentações semelhantes


Apresentação em tema: "Franz-Josef Katzdobler Heraldo Pimenta Borges Filho Project ISKM, 2008/2009 1 Knowledge Extraction from the Web (ISEWO) Franz-Josef Katzdobler Heraldo."— Transcrição da apresentação:

1 Franz-Josef Katzdobler Heraldo Pimenta Borges Filho Project ISKM, 2008/ Knowledge Extraction from the Web (ISEWO) Franz-Josef Katzdobler Heraldo Pimenta Borges Filho DEI – FCTUC, 2008/2009

2 Franz-Josef Katzdobler Heraldo Pimenta Borges Filho Project ISKM, 2008/ Content Introduction Objectives of the Project Architecture Demo Conclusion Future Work

3 Franz-Josef Katzdobler Heraldo Pimenta Borges Filho Project ISKM, 2008/ Introduction Increasing Amount of Knowledge –Extract relevant information from the Web is a complex and important task

4 Franz-Josef Katzdobler Heraldo Pimenta Borges Filho Project ISKM, 2008/ Objectives

5 Franz-Josef Katzdobler Heraldo Pimenta Borges Filho Project ISKM, 2008/ Architecture

6 Franz-Josef Katzdobler Heraldo Pimenta Borges Filho Project ISKM, 2008/ Web-Harvest Open Source Web Data Extraction Tool –Written in Java –Mainly focused on HTML/XML based Websites –XSLT, XQuery, Regular Expressions –Configured with a Config-File –Get XML as output (comfortable for processing in the next stages)

7 Franz-Josef Katzdobler Heraldo Pimenta Borges Filho Project ISKM, 2008/ XML-Output … Pate Bocadelia c/ Caranguejo La Piara 2.10 false Molho Base p/ Engrossar Molhos Express Maizena 2.49 false Arroz Basmati Continente 2.13 false...

8 Franz-Josef Katzdobler Heraldo Pimenta Borges Filho Project ISKM, 2008/ Ontology

9 Franz-Josef Katzdobler Heraldo Pimenta Borges Filho Project ISKM, 2008/ Jena Framework for Building Semantic Web Applications –Possibliity to load ontology from existing file –Persistent Model available The only thing the programmer needs to do is offering a database connection OntModel class can be used to manipulate the data

10 Franz-Josef Katzdobler Heraldo Pimenta Borges Filho Project ISKM, 2008/ Demo

11 Franz-Josef Katzdobler Heraldo Pimenta Borges Filho Project ISKM, 2008/ Conclusion Advantages –Get the cheapest product from several different markets –No need to visit all the different webpages Limitations –The markets are predefined –Config Files manually created

12 Franz-Josef Katzdobler Heraldo Pimenta Borges Filho Project ISKM, 2008/ Possible Future Work More Flexibility –Creation of config-file automatically –Extend the ontology e.g. Categories for the product –Give suggestions to the user (Product X may also be interesting for you...)

13 Franz-Josef Katzdobler Heraldo Pimenta Borges Filho Project ISKM, 2008/ End of Presentation Questions / Discussion


Carregar ppt "Franz-Josef Katzdobler Heraldo Pimenta Borges Filho Project ISKM, 2008/2009 1 Knowledge Extraction from the Web (ISEWO) Franz-Josef Katzdobler Heraldo."

Apresentações semelhantes


Anúncios Google