Multiperspective explorability of tag spaces Mauri Kaipainen, Katrin Niglas, Peeter Normak, Jaagup Kippar

KERG Perspectives to Web 2.0 cognitive social design

Perspectives to Web 2.0

cognitive

social

design

Competences from: Cognitive science Computer science Education Statistics

Competences from:

Cognitive science

Computer science

Education

Statistics

Core issue: Ontologies of Web 2.0? How to make sense of the conceptual polyphony of everyone’s democratic Web 2.0? Report of work in progress.

How to make sense of the conceptual polyphony of everyone’s democratic Web 2.0?

Report of work in progress.

Focus: Collaborative tagging Examples: Flickr YouTube Del.icio.us CiteULike =>Collaborative sensemaking = ’definition of conceptualization’

Examples:

Flickr

YouTube

Del.icio.us

CiteULike

=>Collaborative sensemaking = ’definition of conceptualization’

Tag space The accumulation of tags in a collaborative tagging system as shared conceptual space.

The accumulation of tags in a collaborative tagging system as shared conceptual space.

Tag space as ontology ” An ontology is a specification of a conceptualization ” (Gruber 1993) What dimensions define the tag space?

” An ontology is a specification of a conceptualization ” (Gruber 1993)

What dimensions define the tag space?

Tag space as ontological space (ontospace)

Soft ontology Open ended Non-hierarchical (flat) Allows constant redefinition (perspectives) Elaboration of Aviles...Kaipainen et al. (2003)

Open ended

Non-hierarchical (flat)

Allows constant redefinition (perspectives)

Elaboration of Aviles...Kaipainen et al. (2003)

Soft ontology as matrix Add tags = ontodimensions Explore! Give your weights to tags = perspective

Perspective to ontospace

Perspective visualization Visualization of ontospace from chosen perspective with: Multidimensional Scaling (MDS, Kruskal & Wish 1978) Similarity clustering

Visualization of ontospace from chosen perspective with:

Multidimensional Scaling (MDS, Kruskal & Wish 1978)

Multi-Perspective Exploration - Why? Go ’beyond the information given’ (Bruner 1973)! Hands-on ontology! Recognizing different views to the ontospace Explicate and analyse one’s own perspectives, premises Share perspectives (Compare to photo angles!) Ecology, immersion in conceptual world! (Ulric Neisser in the era... => Games)

Go ’beyond the information given’ (Bruner 1973)! Hands-on ontology!

Recognizing different views to the ontospace

Explicate and analyse one’s own perspectives, premises

Share perspectives (Compare to photo angles!)

Ecology, immersion in conceptual world! (Ulric Neisser in the era... => Games)

Exploration as knowledge building Neisser’s perceptual cycle (1976) emphasizes the systemic nature of cognitive ecology

Neisser’s perceptual cycle (1976)

emphasizes the systemic nature of cognitive ecology

Perceptual cycles and shared ontology as object of exploration Shared ontology

Characteristics of the system Ecology, complex system Iterative, continuous Knowledge building Social: Shared domain Individual: Private perspectives

Ecology, complex system

Iterative, continuous

Knowledge building

Social: Shared domain

Individual: Private perspectives

Prototype of exploration tool: Perspective by sliders Slider interface to explore perspectives => Similarity clustering

Slider interface to explore perspectives

Exploration tool: Content item characterized

Soft search Consider best hit it with respect to the next-best ones Why this result? What if? Try different perspectives => Iterative feedback to schema!

Consider best hit it with respect to the next-best ones

Why this result? What if? Try different perspectives

=> Iterative feedback to schema!

Soft distinctions Explore the effect of taking into account another ontodimension Better distinction?

Explore the effect of taking into account another ontodimension

Better distinction?

Summary: Hands on ontology! Going ”beyon d the information given” Bruner (1973) Allows hands on exploration of ontology Supports individual knowledge building

Going ”beyon d the information given” Bruner (1973)

Allows hands on exploration of ontology

Supports individual knowledge building

Summary: Sharing ontology Ontospace and the exploration tool can be built into online applications! Individual perspectives made shareable Understanding the other Elaborating common concepts

Ontospace and the exploration tool can be built into online applications!

Individual perspectives made shareable

Understanding the other

Elaborating common concepts

Conclusions How to make sense of conceptual polyphony of ’democratic’ Web 2.0 concepts? a) Experts’ top down fixed ontology definitions, or b) Democratic soft ontologies and multiperspective exploration

How to make sense of conceptual polyphony of ’democratic’ Web 2.0 concepts?

a) Experts’ top down fixed ontology definitions, or

b) Democratic soft ontologies and multiperspective exploration

Conclusions Proposed Interaction with ontospace as a means of cognitive-social knowledge building Repurposing a statistical method to allow real-time multi-perspective exploration of ontospaces Transition from sharing a domain to sharing perspectives

Proposed

Interaction with ontospace as a means of cognitive-social knowledge building

Repurposing a statistical method to allow real-time multi-perspective exploration of ontospaces

Transition from sharing a domain to sharing perspectives

Discussion Multiperspective exploration: ’ Immersion’ to concretized virtual conceptual spaces? Exploration ≈ playing around => game-like approach to complex information domains

Multiperspective exploration:

’ Immersion’ to concretized virtual conceptual spaces?

Exploration ≈ playing around => game-like approach to complex information domains

Discussion Other application areas besides collaborative tagging Methodology: Mixed qualitative-quantitative methods (Niglas & Kaipainen in press) Political space Geotagging (Taggin’ Tallinn) All sensemaking of complex domains!

Other application areas besides collaborative tagging

Methodology: Mixed qualitative-quantitative methods (Niglas & Kaipainen in press)

Political space

Geotagging (Taggin’ Tallinn)

All sensemaking of complex domains!

References http://imke.tlu.ee/mediawiki/index.php?title=Mpx#References

http://imke.tlu.ee/mediawiki/index.php?title=Mpx#References

Lev Manovich Studia Generalia Tallinn 08.10.2007 http://www.tlu.ee/imke/manovich/

http://www.tlu.ee/imke/manovich/

Thank you for attention! Discussion wiki: http://imke.tlu.ee/mediawiki/index.php?title=Mpx Email: [email_address]

Discussion wiki:

http://imke.tlu.ee/mediawiki/index.php?title=Mpx

Email:

[email_address]