Location: Academic Organisations » Unclassified lectures

Ontology construction from text

author:Blaž Fortuna, Jožef Stefan Institute
published: Oct. 9, 2008,   recorded: September 2008,   views: 152
Categories
You might be experiencing some problems with Your Video player.

Slides

Slides
0:00 Ontology construction from text
0:24 Outline
0:44 Big picture
0:46 Vision
1:38 Available tools
2:19 The Plan
3:34 OntoGen
3:36 OntoGen (1)
4:05 Ontology construction with OntoGen
4:29 Ontology model in OntoGen
5:13 Example of a Topic Ontology
5:57 Instance representation
6:52 Basic idea behind OntoGen
7:41 Concept discovery – unsupervised (1)
8:27 Concept discovery – unsupervised (2)
9:17 Concept discovery –supervised (1)
10:19 Concept discovery –supervised (2)
11:21 Concept naming –unsupervised
12:48 Concept naming –supervised
13:31 Concept visualization
14:28 Ontology visualization
15:05 Multiple views of the same data
16:33 Word weight learning
17:04 Relations –preprocessing
18:15 Relations – example (1)
19:20 Relations – abstraction
20:00 Relations – example (2)
20:39 Relations – example (3)
21:09 Relations – example (4)
21:34 Evaluation
22:54 From the users
24:04 Future work
24:06 The Plan
24:19 Move towards bigger granularity
28:10 The Plan
28:29 Example
29:19 The Plan
29:51 Template extraction
30:14 Search over triplets (1)
31:10 Search over triplets (2)
32:03 Template earthquake
32:31 Thank you!
45:21 - Questions
49:44 - Questions

Related content

Visitors who watched this lecture also watched...
42:24
Ontology Engineering Methodologies
782 views - Asunción Gómez-Pérez, 2007
02:28:57
Learning from the Masters: Understanding Ontologies found on the Web
1796 views - Bijan Parsia, 2006
01:19:21
Text Mining for Ontology Learning
315 views - Marko Grobelnik, Dunja Mladenić, 2004
01:08:50
What Semantic Web researchers need to know about Machine Learning?
220 views - Blaž Fortuna, 2007
05:52:44
Introduction to the Semantic Web
3170 views - Aldo Gangemi, Sean Bechhofer, Asunción Gómez-Pérez, Jim Hendler, 2008
43:04
An Introduction to OWL
1018 views - Sean Bechhofer, 2007
18:49
Ontogen Software Demo
334 views - Blaž Fortuna, 2007
02:57:56
Free Semantic Content: Using OpenCyc in Semantic Web Applications
736 views - Marko Grobelnik, Blaž Fortuna, Michael Witbrock, 2008
31:07
A cognitive support framework for ontology mapping
205 views - Sean Falconer, 2007
29:22
Ontology-based Information Extraction for Business Intelligence
535 views - Adam Funk, 2007

Report a problem or upload files

If you have found a problem with this lecture or would like to send us extra material, articles, exercises, etc., please use our ticket system to describe your request and upload the data.
Enter your e-mail into the 'Cc' field, and we will keep you updated with your request's status.
Lecture popularity: You need to login to cast your vote.

See Also:

Download slides icon Download slides: sep08_fortuna_oct_01.ppt (5.5 MB)

Launch Windows Media PlayerLaunch in a standalone WM Player

WMedia PlayerSwitch to Windows Media Player

View slides View slides

Help icon Streaming Video Help

WebLink icon Windows Media Player Firefox Plugin - Download

Link this page  

Would you like to put a link to this lecture on your homepage?
Go ahead! Copy the HTML snippet !

Write your own review or comment:

make sure you have javascript enabled or clear this field: