Re: Modeling Uncertainty in PROV - presented at WWW2013

Thanks, Tom - 

Uncertainty is a “big deal” with spatial data, whether collected by traditional survey techniques, from sensors, or for volunteered geographic information (VGI).

For example, check out COBWEB http://www.opengeospatial.org/projects/initiatives/cobweb as an interesting example of where data quality, provenance, and uncertainty all collide. 

In terms of the geosciences (hydrology, meteorology, etc), we have been using UnCertML for modeling and encoding uncertainty in our standards work.

I will share your presentation with the OGC Membership. I suspect that there will be considerable interest.

Regards

Carl Reed, PhD
CTO
OGC


From: Tom De Nies 
Sent: Friday, June 07, 2013 6:22 AM
To: public-prov-comments@w3.org 
Subject: Modeling Uncertainty in PROV - presented at WWW2013

Hi all,

since we're sharing PROV stories, I thought I'd let you know of our recent contribution at WWW2013 [1].

It's a very simple & lightweight set of attributes, used to model provenance in case the content is uncertain, or when the provenance statements are uncertain themselves. 
I needed these for my work with Named Entity Recognition, provenance reconstruction and trust assessment, and decided to write a short paper about them in case someone else had use for them. Since most PROV statements support attributes, the PROV I add these to remains perfectly valid.
Of course, you could create your own attributes for this, but should you want to use them as well, we've created an "UP" namespace at our lab's website [2].

Best regards,
Tom

[1] De Nies, Tom, et al. "Modeling uncertain provenance and provenance of uncertainty in W3C PROV." Proceedings of the 22nd international conference on World Wide Web companion. International World Wide Web Conferences Steering Committee, 2013.
http://dl.acm.org/citation.cfm?id=2487871
[2] http://semweb.mmlab.be/ns/up/


Tom De Nies
Researcher Semantic Web
Ghent University - iMinds
Faculty of Engineering and Architecture
Department of Electronics and Information Systems - Multimedia Lab
Gaston Crommenlaan 8 bus 201, B-9050 Ledeberg-Ghent, Belgium

t: +32 9 331 49 59
e: tom.denies@ugent.be

URL:  http://multimedialab.elis.ugent.be