PowerMagpieLaurian GridinocKnowledge Media Institute, The Open University

2009/03/10

Semantic Browsing

semantic links, not syntactic ones

provide interpretation support

Magpie (2003)

ontology-driven named entity recognition

semantic services

http://projects.kmi.open.ac.uk/magpie/main.html

PowerMagpie (2007)

find ontologies at runtime: Watson (2006)

provide “interpretation support”?

http://watson.kmi.open.ac.uk/http://powermagpie.open.ac.uk/

PowerMagpie

Interpretation

A process of locating and making additional information explicit in a way that makes it coherent and “look orderly”

Information always comes in packages expressing certain points of view

Nelson, T. H. (1997). The future of information. Ideas, Connections, and the Gods of Electronic Literature.

Interpretation

The application of a certain point of view is usually subject to subscribing to some ‘sense of order’

Humans exhibit innate senses of order, and use different systems of order to filter out or transform the facts that do not fit the expected order.

To understand a point of view, one need to recognise first the primary systems of order, as other abstract systems of order may compose upon them.

(Ted Nelson)

On semantic web statements reflect specific points of view which usually adhere to certain ontologies as systems of order

PowerMagpie

What it does?

discover interesting terms

relate them with ontologies

show some ontological information

add RDFa annotations

What it should do?

hide URIs and superfluous relations and concepts

less trees/graphs, more text/tagclouds

persist annotations

“semantic links”

How?get more instance data (LOD)

process all the literals of an entity’s CBD, show a tagcloud as entity’s definition

cluster entities

cluster ontologies (by domain?)

show at most key terms from an ontology, or key related terms

discover relations across ontologies (scarlet.open.ac.uk)

Visualisation developed by Takayuki Goto, Knowledge as Media Group (KasM) Tokyo.

http://www-kasm.nii.ac.jp/

Medical Ontologies

Epidemiological O.

Geographical O.

Conceptual Spaces

Euclidian space, highly dimensional

quality dimensions

concepts as (convex) regions

objects as points

similarity = distance

(Gärdenfors, P. (2004) Conceptual Spaces: The Geometry of Thought)

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<http://example.com/#xpointer(string-range(/html/body/p[2],"documentation"))> <http://openguid.net/rdf#identical>

<http://www.daml.org/2002/01/experiences/experiences.daml#documentation> .

Next

de-couple UI from back-end

RESTful API

sample implementation with Mozilla Ubiquity

build on top of Talis Platform

Thank you.

http://purl.org/net/laur