Welcome to the RDF*/SPARQL* mailing list

Hi all,

I just wanted to welcome everyone who has already subscribed to this list!

The main purpose of this list is to have a place where folks can ask and 
discuss questions related to the RDF*/SPARQL* approach and how to use this 
approach.

If you are here to help or support the work on the submission document about 
RDF*/SPARQL*, I will send another email later to share details about how we 
are going to do this. Given that the vacation period here has started, 
probably not much is going to happen anyways during the next weeks.

In the meantime, maybe, everyone who has joined the list may introduce 
themselves; who are you and what's your interest in RDF*/SPARQL*?

For myself, I simply list the documents I wrote about about RDF*/SPARQL* with 
a brief summary of what each of them provides:

1/ As an introductory document I created the short position statement that I 
wrote for the W3C workshop in March 2019 in Berlin. This position statement 
provides a brief motivation and an overview of the approach, a summary of its 
properties, and pointers to other publications and material.
http://blog.liu.se/olafhartig/2019/01/10/position-statement-rdf-star-and-sparql-star/


2/ "Foundations of an Alternative Approach to Reification in RDF"
http://arxiv.org/pdf/1406.3399

This is the initial document that I wrote together with Bryan Thompson. The 
main contributions of this document are a formal definition of the RDF* data 
model, a mapping from RDF* to pure RDF with the RDF reification vocabulary, a 
definition of the Turtle* grammar, a formal definition of SPARQL*, and a precise 
specification of how SPARQL* (as a query language) extends the W3C 
recommendation of the SPARQL 1.1 Query Language.

3/ "SPARQL* Update"
http://blog.liu.se/olafhartig/documents/sparql-update/

This document specifies SPARQL* Update, which is an RDF*-specific extension of 
SPARQL Update.

4/ "Foundations of RDF* and SPARQL* - An Alternative Approach to Statement-
Level Metadata in RDF"
http://olafhartig.de/files/Hartig_AMW2017_RDFStar.pdf

This document is a research paper that looks at redundancy in RDF* graphs, and 
shows that the reification-based mappings from RDF* to RDF and from SPARQL* to 
SPARQL possess two desirable properties: they are information preserving and 
query result preserving.

5/ "Reconciliation of RDF* and Property Graphs"
http://arxiv.org/pdf/1409.3288

This document describes the relationship between RDF* and the Property Graph 
data model. More technically, this document provides two formal mappings from 
RDF* graphs to Property Graphs, and one such mapping in the other direction 
(PG to RDF*).

Additionally, together with some of my students, we have developed an RDF*/
SPARQL* extension of the Java RDF framework Apache Jena to provide a 
collection of tools and Java libraries to process RDF* data and SPARQL* 
queries. See: https://github.com/RDFstar/RDFstarTools

Moreover, we have some preliminary extension of these tools that connect RDF* 
and Property Graphs: https://github.com/RDFstar/RDFstarPGConnectionTools



Olaf

-----
Dr. Olaf Hartig, Docent
 Associate Professor (Universitetslektor, docent) 
 Division for Database and Information Techniques (ADIT)
 Department of Computer and Information Science (IDA) 
 Linköping University  

 Website: http://olafhartig.de

 Office: Building B, Ground floor, Room 2B:478 

 Postal address:
      Dept. of Computer and Information Science (IDA)
      Linköpings universitet
      SE-581 83 Linköping
      SWEDEN

Received on Saturday, 6 July 2019 10:11:37 UTC