W3C home > Mailing lists > Public > www-rdf-interest@w3.org > December 2003

Re: Trust, Context, Justification and Quintuples

From: Jingwei Huang <jingwei.huang@utoronto.ca>
Date: Thu, 18 Dec 2003 11:31:22 -0500
Message-ID: <007201c3c584$60006760$b700000a@int.novator.com>
To: "Chris Bizer" <chris@bizer.de>, <www-rdf-interest@w3.org>
Cc: "Mark S. Fox" <msf@eil.utoronto.ca>

Hi, Chris,

Nice to know your work. We are working on "Knowledge Provenance" to
determine the validity and origin of web information by means of modeling
and maintaining information source and dependency as well as trust

We have 4 levels of KP models: Level 1 (Static KP) develops the fundamental
concepts for KP, and focuses on provenance of static and certain
information; Level 2 (Dynamic KP) considers how the validity of information
may change over time; Level 3 (Uncertain KP) considers uncertain truth value
and uncertain trust relations; Level 4 (Judgment-based KP) focuses on social
processes (including indirect trust relations) necessary to support

The papers on Static KP and Dynamic KP can be found at:

A paper on uncertain KP is in revision and will be available very soon.

Any comments will be appreciated.

Best regards,


----- Original Message ----- 
From: "Chris Bizer" <chris@bizer.de>
To: <www-rdf-interest@w3.org>
Sent: Thursday, December 18, 2003 9:05 AM
Subject: Trust, Context, Justification and Quintuples

> Hi everybody,
> we did some brainstorming about trust, context and the justification of
> query results and ended up with:
> - an extended RDF data model based on quintuples (a triple plus two
> additional elements: context and statement ID).
> - a trust-oriented query language for this data model
> - the concept of justification trees for tracking data provenance and data
> lineage.
> See: http://www.wiwiss.fu-berlin.de/suhl/bizer/trustcontextjustification/
> Our approach is much more data-oriented than the proof-oriented work of
> McGuinness and da Silva published at ISWC 2003 [1]. But we think for
> applications which don't do heavy inferenceing such a approach could be
> sufficient.
> Is somebody working on similar approaches?
> Do you know any other groups working on the topic?
> What do you think about extending the RDF model for capturing context?
> What do you think about the approach in general?
> We are looking forward to any feedback :-)
> Regards
> Chris Bizer
> http://www.wiwiss.fu-berlin.de/suhl/ueber_uns/team/chris_bizer.htm
> [1]
Received on Thursday, 18 December 2003 11:34:46 UTC

This archive was generated by hypermail 2.3.1 : Wednesday, 7 January 2015 15:07:48 UTC