A Similarity Measure for Formal Ontologies with an application to - - PowerPoint PPT Presentation

▶

a similarity measure for formal ontologies

A Similarity Measure for Formal Ontologies with an application to - - PowerPoint PPT Presentation

Jan 24, 2024 432 likes •568 views

A Similarity Measure for Formal Ontologies with an application to ontologies of a geographic kind Mark Hall Midflight presentation for the master thesis 27 .01.2006 Overview I Topic Evaluation of data instance statistics Progress &

slide-1

SLIDE 1

A Similarity Measure for Formal Ontologies

with an application to ontologies of a geographic kind Mark Hall

Midflight presentation for the master thesis 27 .01.2006

slide-2

SLIDE 2

Mark Hall A Similarity Measure for Formal Ontologies 27 .01.2006

Overview I

Topic Evaluation of data instance statistics Progress & Outlook

slide-3

SLIDE 3

Mark Hall A Similarity Measure for Formal Ontologies 27 .01.2006

What’s it all about, Basil?

Problem: Semantic harmonisation of heterogeneous data sets Domain: Land-Use/Land-Cover data Solution: Semantic similarity measure based on hybrid cognitive model

slide-4

SLIDE 4

Mark Hall A Similarity Measure for Formal Ontologies 27 .01.2006

Overview II

Topic Evaluation of data instance statistics Progress & Outlook

slide-5

SLIDE 5

Mark Hall A Similarity Measure for Formal Ontologies 27 .01.2006

Instance Statistics

Frequency of Polygons and relative Area calculated No significant correlation found Differences in Topography Differences in Granularity of Catalogue Differences in Granularity of Data

slide-6

SLIDE 6

Mark Hall A Similarity Measure for Formal Ontologies 27 .01.2006

Frequency Problem

slide-7

SLIDE 7

Mark Hall A Similarity Measure for Formal Ontologies 27 .01.2006

Dominant Category

slide-8

SLIDE 8

Mark Hall A Similarity Measure for Formal Ontologies 27 .01.2006

Topographical Differences

slide-9

SLIDE 9

Mark Hall A Similarity Measure for Formal Ontologies 27 .01.2006

Granularity Differences

slide-10

SLIDE 10

Mark Hall A Similarity Measure for Formal Ontologies 27 .01.2006

Overview III

Topic Evaluation of data instance statistics Progress & Outlook

slide-11

SLIDE 11

Mark Hall A Similarity Measure for Formal Ontologies 27 .01.2006

How’ we doin’ mate?

Decent :-) 2 1/2 Chapters written

slide-12

SLIDE 12

Mark Hall A Similarity Measure for Formal Ontologies 27 .01.2006

Land ahoy!

Still on course 1st complete version at end of February Clean up in March

slide-13

SLIDE 13

Thank you

Q&A now

Is anybody watching me?