2013s

Resources that change state

The PROV working group received a question from Mike:

My understanding is that an entity referenced in a PROV bundle (e.g. via wasGeneratedBy) must be in the bundle…but I do not wish to duplicate entity definitions through out my bundles. My entities are long lived and will exist in multiple bundles.
So lets say I have a resource for alarms which contains a list of all alarms my company monitors. If I turn off the alarm at alarm/1, my understanding is that in PROV a new entity is created for the new state of alarm/1.
But in my actual data store, I don’t create a new record, I just toggle a flag. So there is a disconnect between how my PROV looks and how my data looks. This is by design is my understanding.
So I would have a new entity in my prov for the alarm/1 in the new state which is a specialization of alarm/1, yes? Ultimately, I want to display all of the provenance for alarm/1 so I can see its history from creation to invalidation. Am I going about this the wrong way?

PROV released as W3C Recommendations

The Provenance Working Group was chartered to develop a framework for interchanging provenance on the Web. The Working Group has now published the PROV Family of Documents as W3C Recommendations, along with corresponding supporting notes. You can find a complete list of the documents in the PROV Overview Note.
PROV enables one to represent and interchange provenance information using widely available formats such as RDF and XML. In addition, it provides definitions for accessing provenance information, validating it, and mapping to Dublin Core. Learn more about the Semantic Web.

Locating provenance for a RESTful web service

This blog post shows how RESTful web services can provide, and link to, provenance data for their exposed resources by using the PROV-AQ mechanism of HTTP Link headers. This is demonstrated by showing how to update a hello world REST service implemented with Java and JAX-RS 2.0 to provide these links.

The  PROV-AQ HTTP mechanism is easiest explained by an example:

GET http://example.com/resource.html HTTP/1.1
Accept: text/html

HTTP/1.1 200 OK
Content-type: text/html
Link: <http://example.com/resource-provenance>; 
         rel="http://www.w3.org/ns/prov#has_provenance"; 
         anchor="http://example.com/resource"

<html>
  <!-- ... -->
</html>

This request for http://example.com/resource.html returns some HTML, but also provides a Link: header that says that the provenance is located at http://example.com/resource-provenance.

W3C PROV Implementations: Preliminary Analysis

By Khalid Belhajjame, syndicated from https://khalidbelhajjame.wordpress.com/2013/04/04/w3c-prov-implementations/

In the beginning of December 2012, the W3C Provenance Working Group issued a call for implementations. As of February the 25th 2013, 64 PROV implementations were reported to the W3C Provenance Working Group.

These implementations took different forms ranging from stand alone applications (30), to reusable frameworks and libraries (10), to services hosted by third parties (9), to vocabularies (21), and constraints validation modules (3).

Recording authorship, curation and digital creation with the PAV ontology
PAV is a lightweight ontology for tracking Provenance, Authoring and Versioning.  PAV supplies terms for distinguishing between the different roles of the agents contributing content in current web based systems: contributors, authors, curators and digital artifact creators. The ontology also provides terms for tracking provenance of digital entities that are published on the web and then accessed, transformed and consumed.
Tutorial on the W3C PROV family of specifications

Posted by Khalid Belhajjame

Provenance, a form of structured metadata designed to record the origin or source of information, can be instrumental in deciding whether information is to be trusted, how it can be integrated with other diverse information sources, and how to establish attribution of information to authors throughout its history.

The PROV set of specifications, produced by the World Wide Web Consortium (W3C), is designed to promote the publication of provenance information on the Web, and offers a basis for interoperability across diverse provenance management systems. The PROV provenance model is deliberately generic and domain-agnostic, but extension mechanisms are available and can be exploited for modelling specific domains.

What can provenance do for me?

Also available on Slideshare, pdf and as pptx.

The above presentation was originally given at the Metagenomics, metagenetics and Pylogenetic workflows for Ocean Sampling Day Workshop at Max Planck Institute for Marine Microbiology on 2013-03-21 by Stian Soiland-Reyes. Reuse allowed under the Creative Commons Attribution license 3.0.

Web Annotation as a First Class Object
Identifier
http://s11.no/2013/web-annotation/
Memento
http://web.archive.org/web/20190320013723/http://s11.no/2013/web-annotation/
Alternates
arXiv:1310.6555
arXiv:1310.6555v3
arXiv:1310.6555v2
PRE-PEER-REVIEW.PDF
16ac93c0-c2af-4e73-b5f8-7d0582556dd7
uk-ac-man-scw:211608
ResearchGate
RDF Turtle
Created
Modified
License
CC BY 4.0
This Document
Author-Accepted Green Open Access
Published
IEEE Internet Computing 17 (6) pp 71–75
12 December 2013 (subscription access)
Cite as
https://doi.org/10.1109/mic.2013.123

Web Annotation as a First-Class Object

Authors
Abstract

Scholars have made handwritten notes and comments in books and manuscripts for centuries. Today’s blogs and news sites typically invite users to express their opinions on the published content; URLs allow web resources to be shared with accompanying annotations and comments using third-party services like Twitter or Facebook. These contributions have until recently been constrained within specific services, making them second-class citizens of the Web.