some unrefined ideas on recommendations

giving a try to the black layout working largely offline...apologize for this crap presentation :)

Davide Palmisano - WP3 meeting, 15/09/2009@VU

Tuesday, September 15, 2009

a realistic scenario:

an instance of the Beancounter is running

for each user registered on it, we have:

a large RDF graph regarding user’s activities, friend relationships, geolocalization and more...

Tuesday, September 15, 2009

not exactly a coherent, meaningful and immediately usable user

profile

but, for sure, something where mine interests, topics and user habits

Tuesday, September 15, 2009

not exactly a coherent, meaningful and immediately usable user

profile

but, for sure, something where mine interests, topics and user habits

“the treasury is there, you just need to know where to dig” - anonymous

Tuesday, September 15, 2009

Tuesday, September 15, 2009

Tuesday, September 15, 2009

Tuesday, September 15, 2009

in this case we can reasonably claim that:

<http://dpalmisano.myopenid.com> foaf:interest <http://dbpedia.org/resource/Category:Post-rock>

and then recommend him other stuff with that SKOS subject

Tuesday, September 15, 2009

how to achieve this?

analogically to spiders of a traditional web crawler we can imagine a set of profilers

Tuesday, September 15, 2009

how to achieve this?

analogically to spiders of a traditional web crawler we can imagine a set of profilers

according to a predefined set of rules they explore the links and produce a set

of coherent triples stating explicit interests

Tuesday, September 15, 2009

a rule like a SPARQL construct:

construct {<http://dpalmisano.myopenid.com> foaf:interest ?skos} where { <http://dpalmisano.myopenid.com> ?r ?s. ?s skos:Subject ?skos }

Tuesday, September 15, 2009

a rule like a SPARQL construct:

construct {<http://dpalmisano.myopenid.com> foaf:interest ?skos} where { <http://dpalmisano.myopenid.com> ?r ?s. ?s skos:Subject ?skos }

and where is the statistical side of the hybrid algoritm?[1]

[1] NoTube DoWTuesday, September 15, 2009

construct {<http://dpalmisano.myopenid.com> foaf:interest ?skos} where { <http://dpalmisano.myopenid.com> ?r ?s. ?s skos:Subject ?skos }

trivially we could consider the number of incoming links of the SKOS subject ?skos starting from resources that are linked with <http://dpalmisano.myopenid.com>

an higher number leads to a more enforced foaf:interest ?skos

Tuesday, September 15, 2009

from a technology perspective

Hadoop could be a reasonable choice

the links discovery is a pure batch process that needs heavy computations

Hadoop is mature enough to be experimented within NoTube

Tuesday, September 15, 2009