15:58:53 <RRSAgent> RRSAgent has joined #RDB2RDF
15:58:53 <RRSAgent> logging to http://www.w3.org/2008/11/21-RDB2RDF-irc
15:59:07 <Ashok> zakim, this is RDB2RDF
15:59:07 <Zakim> ok, Ashok; that matches INC_RDB2RDF()11:00AM
15:59:09 <Zakim> + +1.512.471.aabb
15:59:25 <Ashok> chair: Ashok 
15:59:40 <Ashok> meeting: RDB2RDF XG Telcon
15:59:42 <Zakim> +??P6
16:00:02 <Zakim> + +043316876aacc
16:00:20 <Zakim> +Mike_Dean
16:00:27 <whalb> zakim, +043316876aacc is whalb
16:00:27 <Zakim> +whalb; got it
16:00:43 <Zakim> +Ashok_Malhotra
16:01:14 <Zakim> + +49.322.222.0.aadd
16:01:18 <Ashok> zakim, who is on the phone?
16:01:18 <Zakim> On the phone I see ??P0, +1.617.873.aaaa, +1.512.471.aabb, ??P6, whalb, Mike_Dean, Ashok_Malhotra, +49.322.222.0.aadd
16:01:26 <Zakim> + +0238033aaee
16:01:52 <Zakim> +??P12
16:01:54 <prakash> 617.873.aaaa is Prakash
16:04:15 <juansequeda> juansequeda has joined #RDB2RDF
16:04:57 <Soeren> Soeren has joined #rdb2rdf
16:05:40 <Ashok> scribenick: juansequeda
16:06:36 <juansequeda> Next meeting Nov 28 will be cancelled.
16:06:52 <juansequeda> Next call will be Dec 5
16:07:49 <juansequeda> Minutes of Nov 7 are approved
16:09:49 <Zakim> +??P17
16:09:54 <whalb> http://esw.w3.org/topic/Rdb2RdfXG/ReusableIdentifier
16:10:57 <Cathy> Cathy has joined #RDB2RDF
16:10:59 <juansequeda> Michael started to work with Themis on use cases for ENS: http://esw.w3.org/topic/Rdb2RdfXG/ReusableIdentifier
16:11:23 <juansequeda> Michael will be scheduled for the next call to talk about ENS
16:11:43 <juansequeda> Ashok will contact Bijan and Chris Bizer for their material
16:12:37 <Ashok> Topic:  SateOfTheArtSurvey
16:12:47 <Ashok> s/Sate/State/
16:14:11 <juansequeda> We will have more discussion about Survey over email
16:14:42 <ssahoo2> Survey document URL: http://esw.w3.org/topic/Rdb2RdfXG/StateOfTheArt?action=AttachFile&do=get&target=RDB2RDF_SurveyReport.doc
16:17:06 <hellmann> im here
16:17:22 <Ashok> Are you on the phone?
16:17:50 <hellmann> my microphone is not working
16:18:04 <juansequeda> Presentation from Prakash Manghwani from BBN
16:18:11 <Ashok> Prakash's presentation http://asio.bbn.com/rdb2rdf/AsioRDB2RDF-1.ppt 
16:20:01 <Ashok> Ontology http://asio.bbn.com/rdb2rdf/ds_ont.n3.txt 
16:20:13 <Ashok> http://asio.bbn.com/rdb2rdf/ds_ont_map.n3.txt 
16:20:36 <juansequeda> Asio Parliament is a high performance triple store
16:20:58 <juansequeda> Asio Scount is used for integrating hetergenous data sources 
16:22:20 <juansequeda> Each semantic bridge is a semantic cover.
16:22:40 <juansequeda> the bridges takes the sparql query and translate it to the data sources natural format
16:23:03 <juansequeda> i.e Relational Database Semantic Bridge translates SPARQL to SQL, and returns the relational data to RDF
16:24:19 <juansequeda> There is an ontology for each data source
16:25:10 <juansequeda> Orri: what happens if in a dept, there are different types of customers?
16:25:33 <juansequeda> Prakash: besides the individual ontology, there is a domain ontology where SWRL is used for the mapping
16:26:21 <juansequeda> Snoggle is a graphical tool that lets you write SWRL rules between data source ontologies and domain ontologies
16:27:08 <juansequeda> Ashok: why create the data source ontology and map it to the domain ontology? why have this middle step?
16:27:19 <juansequeda> The data source ontology could be reused
16:27:50 <juansequeda> Asio Automapper extracts the data source ontology.
16:28:11 <juansequeda> Asio Automapper is a direct mapping technique
16:30:30 <juansequeda> All the transformation can be done in the semantic web space
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16:32:31 <Zakim> +??P19
16:32:33 <Zakim> -??P0
16:32:36 <juansequeda> SPARQL query is written intial. Semantic Query Decomposition uses SWRL to decompse the query and send it to each semantic bridge
16:33:15 <Zakim> +??P0
16:33:18 <Ashok> No problem
16:33:39 <Ashok> Slides for the prsentation are at http://asio.bbn.com/rdb2rdf/AsioRDB2RDF-1.ppt 
16:35:28 <juansequeda> What happens if two data sources return conflicting results? 
16:35:42 <juansequeda> Not part of Asio's scope right now
16:36:12 <juansequeda> Automapper generates an ontology from the RDB schema, and also a "mapping ontology" 
16:36:39 <juansequeda> Autogenerated mapping file is based on d2rq 
16:37:23 <juansequeda> the mappings are from relational data types to xml datatypes
16:38:20 <juansequeda> The configuration file overwrites what is in the relational schema
16:38:34 <juansequeda> i.e if the schema doesnt have a FK, then it is implemented in the config file
16:41:55 <Ashok> <Ashok> Ontology http://asio.bbn.com/rdb2rdf/ds_ont.n3.txt <Ashok> http://asio.bbn.com/rdb2rdf/ds_ont_map.n3.txt 
16:45:55 <juansequeda> mapping is between the data source and the datasource ontology. this mapping is used by the bridge for the query translation
16:47:30 <AxelPolleres> Ijumped in late: can someone say in what sense is this SWRL mappings are different from Eric's canonical mapping and then map by SPARQL? (despite that the mapping SQL to RDF is nor canonical?)
16:49:18 <juansequeda> With SWRL, it is query rewriting, and the rules are chainable, while that is not possible in SPARQL
16:49:37 <AxelPolleres> SWRL rules are chainable, which is not the case for the one-shot SPARQL mapping proposed by Eric... ok. got it
16:53:24 <juansequeda> New features of OWL 2 will enhance the capabilities of Automapper
16:56:34 <juansequeda> Axel will present on Dec 5 about using RIF as the mapping language
16:56:54 <juansequeda> Need to discuss Ivan's comments on the use cases
16:57:03 <juansequeda> Need to comment on the Survey paper
16:57:11 <Zakim> -??P6
16:57:15 <hellmann> bye
16:57:17 <Zakim> - +0238033aaee
16:57:18 <Zakim> -AxelPolleres
16:57:21 <Zakim> -??P17
16:57:23 <Zakim> -??P0
16:57:23 <Zakim> - +49.322.222.0.aadd
16:57:26 <Zakim> -whalb
16:57:27 <Zakim> -Mike_Dean
16:57:33 <Zakim> -Ashok_Malhotra
16:57:35 <Zakim> - +1.617.873.aaaa
16:57:36 <Zakim> - +1.512.471.aabb
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16:57:48 <Zakim> INC_RDB2RDF()11:00AM has ended
16:57:49 <Zakim> Attendees were +1.617.873.aaaa, +1.512.471.aabb, Mike_Dean, whalb, Ashok_Malhotra, +49.322.222.0.aadd, +0238033aaee, AxelPolleres
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16:57:59 <Ashok> rrsagent, make logs public
16:58:19 <Ashok> rrsagent, create minutes
16:58:19 <RRSAgent> I have made the request to generate http://www.w3.org/2008/11/21-RDB2RDF-minutes.html Ashok
17:02:38 <iv_an_ru> iv_an_ru has joined #rdb2rdf
17:04:14 <iv_an_ru> Khm, do we begin or I've joined one hour later than I should?
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