Linked Open Data to Support Content-based Recommender Systems - I-SEMANTIC…
Open Recommender
14
OpenRecommender OpenRecommender A Cross-Platform Semantic Recommendation Engine Bryan Copeland, BCmoney MobileTV
-
Upload
bcmoney-mobiletv -
Category
Technology
-
view
1.236 -
download
1
description
OpenRecommender is an open source project to create the world's most reliable and scalable Recommendation Engine software for filtering and suggesting content & services of all types, in the right place, at the right time.
Transcript of Open Recommender
OpenRecommenderOpenRecommender
A Cross-Platform Semantic Recommendation Engine Bryan Copeland, BCmoney MobileTV
SW Adoption (Major Issues)SW Adoption (Major Issues)
Data linkage & integration
Vocabulary selection
Service & Content discovery
Search-equivalent paradigm
RecommendationsRecommendations
What is a recommendation? Interesting video (Video + Discussion) Shocking News story (News + Text + Organization) Delicious recipe/restaurant (Food + Text/Location) Favorite song/band (Person + Organization/Audio) “My shows” (Video + Person + Event) Medical Dataset to query (Species + Text + License) Medical treatment (Species + Person + Text) Legal services (Person + Organization + Profession + Event)
I like it, so you must like it too!
TaxonomyTaxonomy
Audio Celestial Code Device Discussion Event Food Image License
LocationNewsOrganizationPersonProfessionSpeciesTextVideo
SchemaSchema
{ "recommendations": [ { "recommendation" : { "title":"", "image":"", "link":"", "description":"“ } } ]}
<recommendations> <recommendation> <title><title> <image></image> <link></link> <description></description> … </recommendation> …<recommendations>
XML JSON
SemanticsSemantics
RDF<foaf:Person rdf:ID="http://facebook.com/bcmoney"> <foaf:name> Bryan Copeland </foaf:name> <rec:recommends> <dc:title lang="ja">Akunin</dc:title> <dc:title lang="en">Villain</dc:title> <dc:image>...</dc:image> <dc:source> http://www.akunin.jp/ </dc:source> <dc:description>…</dc:description> </rec:recommends></foaf:Person>
n3@prefix foaf: <http://xmlns.com/foaf/0.1/>.@prefix dc: <http://purl.org/dc/elements/1.1/>.@prefix owl: <http://www.w3.org/2002/07/owl#>.@prefix rec: <http://openrecommender.org/schema/>.
<http://facebook.com/bcmoney> foaf:name “Bryan Copeland"; dc:publisher “Facebook“; rec:recommends <http://www.akunin.jp/>. <http://www.akunin.jp/> dc:Title "Akunin"; dc:Title “Villain"; owl:sameAs <http://imdb.com/title/tt1542840/>; owl:sameAs <http://freebase.com/view/m/0dlh7sg>
.
OntologyOntology
Mobile PhonesMobile TV
Broadcast Type One-seg DMB IPTV
XMLTV
Dublin CoreFOAFMusic
ArchetypesArchetypes
Lean ForwardResearcher TechieChannel SurferArmchair ActivistSuper FanParty organizerBargain hunter
Lean BackBusy ExecutiveBusiness OwnerCouch PotatoConcerned Parent Jock/CheerleaderParty hopperPack rat
AlgorithmsAlgorithms
Machine Learning (Stats)Non-negative matrix factorization Single Value DecompositionLaBarrie Theory (EQ)Collaborative Filtering (CF)Natural Language Processing (NLP)Fuzzy String Matching“Intelligent” Randomization
RelevanceRelevance
Ranking factor plots performance of algorithms for each Archetype against each Semantic type from Taxonomy
P x Q x R matrixHeight = 10 (# of algorithms)Width = 500 (# of users)Depth = 17 (# of categories in Taxonomy)
ExampleExample
User 1
User 2
… User N
CF 0.014 0.173
ML 0.158 0.092
…
A(n)
Audio…
Video
P
Q
R
P =
Cross-Platform?Cross-Platform?
Platform-specific plugins/apps: WordPress MediaWiki Firefox, IE, Safari, Opera browser plugin iPhone Blackberry Android Java Desktop client?
Web Service API (w/ SPARQL endpoint) PHP, AJAX, HTML5 toolkits W3C Widgets
Looking For…Looking For…
Code Contributors
Sponsors (contest)
Project Champion (industry)
Collaboration, Feedback
QuestionsQuestions
Recommendations replacement for Search?
How can Recommendation Engines (like Search Engines) be gamed?
Ideas on ways to prevent attacks?
Privacy issues? Others?
