swaha08 - personalizing human interaction through hybrid ontological profiling: cultural heritage...
DESCRIPTION
My presentation for a paper I wrote titled: Personalizing Human Interaction through Hybrid Ontological Profiling: Cultural Heritage Case Study, Nima Dokoohaki, Mihhail Matskin, presented at SWAHA08 workshop at ASWC08, Bangkok Thailand, February 2009.TRANSCRIPT
PERSONALIZING HUMAN INTERACTION THROUGH HYBRID ONTOLOGICAL PROFILING: CULTURAL HERITAGE CASE STUDYNima Dokoohaki, Mihhail MatskinBangkok, Thailand, February 2nd 2009
First workshop on Semantic Web Applications and Human Aspects (SWAHA)
Royal Institute of technology (KTH),Stockholm, Sweden
Content
Motivation Problem Description/Formulation Contribution
User Profile Profile Structure
Records (segments) Semantic network of user profile
Extending CH ontologies with User keywords User Model ontology CH Metadata + Human User Metadata
Conclusion/Future Work Questions
General Problem
Scenario: Constructing a Semantics-aided Museum
(Cultural Heritage) knowledge Platform Clients are mobile devices which guide users
through exhibit Goals:
Improving structured, user behaviour and preference dependent access to cultural heritage repositories Approach taken: User modelling and profiling
Bringing personalised cultural experience closer to non-expert communities Approach taken: Personalization techniques;
Collaborative Filtering Recommender Systems
Contribution
Need for a hybrid approach Allows description of the user attributes Recording history of user access for
personalized, adaptive and interactive experience
Need for a generic structure Structure that allows incorporation of all kinds
of usage attributes [Domain independence] Weight(s) can be assigned to recorded
materials [Weighted profiles] Structure that can be presented in
[Interoperable] high level formats (OWL/RDF) low level formats (XML/Database)
Profile Structure
A Generic Structure Used for saving and retrieving different types
of information that document both behavior and knowledge aspects of the user.
Documents Personal information about the user History and evidence of the Usage
experience Weight of the information recorded
Structural descriptions Depth (hierarchy) Length (flat structure)
Profile RecordsProfile Records
Example: Records of visit of user to museum:
< Reference to Context, visited, “artifact name”, atTime{Date time/date value}, Rank, Privacy, Trust>
<http://smartmuseum.eu/ns/context/weather#, visited, Venere, atDate 20081210 , 0.8, 0.5, 0.6>
Example: Records of visit of user to museum:
< Reference to Context, visited, “artifact name”, atTime{Date time/date value}, Rank, Privacy, Trust>
<http://smartmuseum.eu/ns/context/weather#, visited, Venere, atDate 20081210 , 0.8, 0.5, 0.6>
User ProfileUser Profile
Italian Renaissance
Sandro Botticelli
Michelangelo Buonarroti
Primavera
David
Venere
Holy Family
Early Renaissance
Late Renaissance
Semantic Profile NetworkSemantic Profile Network
hasPainted
hasArtist
hasArtist
hasCreated hasPaintedhasPainted
Semantic Profile NetworkSemantic Profile Network
Visualized by RDF Gravity, http://semweb.salzburgresearch.at/apps/rdf-gravity/download.html
Improving personalization through cultural heritage extension with user model We can extend existing [legacy] cultural
heritage keyword-set to contain Human attributes [extended] Construct a user model ontology to describe
attributes of our user The user model ontology concepts are used to
expand legacy concepts for cultural heritage Aim: Improving recommendations
(information retrieved on user’s behalf) Through query expansion
Expanded query contains user attributes (profiles) Efficient individual/group matchmaking
Similar instances are on both sides item instances and user profiles
Extending Metadata with Human Attributes (User Model Ontology)
Perspectives
Categories
Schema
Instances
All
SUM:Age Group
SUM:Knowledge
Group
TGN:Place
ULAN:Person AAT:
Concept
VRA:Work
VRA:techniqueVRA:Material
VRA:CreatorVRA:location.CreationSite
SM: SuitesAgeGroup
SM:SuitesKnowledgeGroup
SUM:Tour.
TourName
SM: IncludedinTour
SUM:Visitor
Typology
SM: SuitesVisitorType
SM:Companion SUM:visit.
Companion
Greedy
Virtual Uffizi
Florence
Adult
Sandro Botticelli
Venere
Tempera on Canvas
Teenager
Selective
Parent
IncludedinTour
SuitesVisitorType
SuitesVisitorType
CreationSiteCreator
Material
SuitesKnowledgeGroup
Companion
SuitesAgeGroupSuitesAgeGroup
Extended CH keywords with Human
Extended CH keywords with Human
Conclusion / Future work
Conclusions User Behavior models ( Profiling / Modeling) seem to become
dominant approaches in addressing problems of altering structure of human-system
interactions, specifying and presenting of preferences of human users
Personalization techniques seem to become dominant approaches in
information dissemination Future work
Focused study of personalization effect based on profile/model Implementing personalization services based on user
profile/model Recommendation [ongoing]
Improving existing recommendation based on weight values [ongoing]
Questions ?
Thank you !
Nima Dokoohaki
School of Information and Communications Technology (ICT ),
Royal Institute of Technology ( KTH ),Stockholm,Sweden
Office: +46 (0) 8 790 4149Cell : +46 (0) 76 269 76 30Fax: +46 (0) 8 751 1793
http://web.it.kth.se/~nimad/