Personalization in Semantic Wikis

blaredsnottyAI and Robotics

Nov 15, 2013 (3 years and 10 months ago)

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Personalization
in
Semantic
Wikis
Diego Torres
Dir
: Alicia Díaz
Semantic Wikis

As a social tool, they transform foreigners into
collaborators

As a semantic web tool, they allow better
navigation, information retrieving, ontology
emerging and
collaborative knowledge building
M.
Krötzsch
, D.
Vrandecic
, M.
Völkel
, H. Haller, and R.
Studer
. Semantic
wikipedia
. Journal of Web Semantic,
5(4), 2007.
S.
Schaffert
.
IkeWiki
: A Semantic Wiki for Collaborative Knowledge Management. WETICE, 2006. IEEE.
Buffa
et Al.
SweetWiki
: A Semantic Wiki.
Journal of Web Semantic,6(1)
,2008.
Problem

Knowledge in semantic wikis are shared
(Semantic
MediaWiki,Swooki
):

Semantic data embedded in wiki text
describes the common understanding
of the community

Can be modified by the community
Problem

Only few personal semantic wikis
[Oren06] manage personal knowledge.

Without collaboration

There are no semantic wikis that help
people to combine and manage in a usable
way both
personal and shared
knowledge
Oren
, E
. et al.
Semantic
wikis for
personal
knowledge
management. DEXA06, LNCS Volume
4080
Problem

However, knowledge is basically created by
individuals who are involved in a social process

Knowledge first emerges at individual context and
then is socialized [Stahl06]

It is fundamental to support personal knowledge
building in semantic wikis

Personal understanding in a private way

Personal navigation and browsing
Stahl, G., ed.: Group cognition: Computer support for building collaborative knowledge. Cambridge, MA:
MIT Press (2006)
Our
Approach

Add
personal
knowledge
support
in a P2P
Semantic
Wiki.

Add personal knowledge support in
Swooki

Personal semantic annotations

Only accessible to its owners and presents the user
private view (perspective) on the shared
knowledge

Navigable
Implementation
SWOOKI
Personalization extension
Personal Information
-
Data Model

Personal knowledge in represented by
personal semantic annotations

A personal semantic annotation can be a category or individual

A personal semantic annotation is stored as a RDF triple
Data Model

The same Sesame engine manages both shared
knowledge and personal knowledge in different
name spaces
:

Query personal knowledge

Query shared knowledge

Query both personal and shared knowledge
Data Model

Personal semantic annotations are hosted
locally. A change performed on a personal
semantic annotation is:

Immediately applied locally,

Not propagated to other peers
Add Individual Operations
addIndividual
(PageId,CategoryName
)
//sets the wiki page
PageId
as a member of
CategoryName
{
I
f
CategoryName
does not exist
then
addCategory
(
pageId,CategoryName
)
insertRDF(PersonalStatements
, (
PageId
,
belongsTo
,
CategoryName
))
}
P
-
Swooki
in Action
addIndividual
("SemanticWiki
","Wiki
")
{
insertRDF(PersonalStateme
nts
, ("
SemanticWiki
",
"
belongsTo
",
"Wiki")
}
Demo
Personal Navigation in Action
Personal Navigation in Action
Personal Navigation in Action
Personal
Navigation
in
Action
Experience
-
Lessons Learned

Participants have used both personal and shared
semantic annotations

Tends to use personal annotations when they
were browsing and shared annotations when
they were editing pages.

Personal annotations helps to structure their
own navigational map according to their
personal taxonomy.
Experience
-
Lessons Learned

Personal annotations were easier for people not
familiar with semantic wikis whereas someone
familiar with semantic wikis did not see exactly
the added value of personal semantic
annotations

All participants have manifested the importance
to have
a good user
-
interface
to facilitate
personal navigation
Conclusions

Personal navigation is carried out by the use of
personal semantic annotations.

Users can customize navigation according their
needs and common understanding.

Users complement the shared navigational space
with the private one.

Query both personal and shared knowledge

Shared knowledge are enriched

Experimentation showed that adding personal
knowledge management to semantic wikis are useful
and improve the usability of semantic wikis
Further Work

Enrich the personal annotations model

Relationships, attributes

U
ser friendly interface

Using this work to adapt to other kind of
wikis
(DSMW)

Combining the personal semantic annotations
space with a
Firefox
Add
-
on to be used in
multiple semantic
wikis
References

Oren, E.:
Semperwiki
: a semantic personal wiki. In:
Proc. of 1st Workshop
on The
Semantic Desktop
-
Next
Generation Personal Information Management
and
Collaboration
Infrastructure, Galway, Ireland. (2005
)

Skaf
-
Molli
, H.,
Rahhal
, C.,
Molli
, P.: Peer
-
to
-
peer
semantic
wiki. In
Verlag
, S
., ed
.: DEXA’09: 20th
International
Conference
on
Database
and
Expert
Systems
Applications
. (2009
).

Stahl, G., ed.: Group cognition: Computer support for
building
collaborative knowledge
. Cambridge, MA: MIT
Press (2006
)
-

Diego Torres
, Hala
Skaf
-
Molli
, Alicia Díaz, Pascal
Molli
:
Supporting
Personal
Semantic
Annotations
in P2P
Semantic
Wikis.
DEXA 2009
: 317
-
331