14:57:22 <RRSAgent> RRSAgent has joined #RDB2RDF
14:57:22 <RRSAgent> logging to http://www.w3.org/2008/09/05-RDB2RDF-irc
14:57:46 <Ashok> zakim, this will be rdb2rdf xg
14:57:46 <Zakim> I do not see a conference matching that name scheduled within the next hour, Ashok
14:58:13 <Ashok> zakim, this is RDB2RDF
14:58:13 <Zakim> ok, Ashok; that matches INC_RDB2RDF()11:00AM
14:58:33 <Ashok> chair:  Ashok
14:58:48 <Ashok> meeting: RDB2RDF
14:59:57 <Zakim> +??P2
15:00:01 <iv_an_ru> Hello Ashok
15:00:07 <Zakim> +Ashok_Malhotra
15:00:12 <Zakim> + +1.512.471.aaaa
15:01:47 <juansequeda> juansequeda has joined #RDB2RDF
15:01:55 <Ashok> zakim, who is on the phone?
15:01:55 <Zakim> On the phone I see Andrew_Eisenberg, ??P2, Ashok_Malhotra, +1.512.471.aaaa
15:02:47 <Zakim> +[IBM_Watson]
15:04:14 <Zakim> + +1.408.504.aabb
15:04:53 <Zakim> + +1.213.542.aacc
15:07:34 <Ashok> Minutes from July 25 approved.
15:07:43 <lma> lma has joined #RDB2RDF
15:08:23 <Zakim> +??P11
15:09:21 <Ashok> f2f Oct 30 and 31 in Karlsruhe is confirmed. 
15:09:30 <iv_an_ru> Zakim, ??P11 is orri
15:09:30 <Zakim> +orri; got it
15:09:58 <Ashok> Action on Wolfgang to send out meeting logistics
15:10:25 <Zakim> + +1.937.775.aadd
15:10:29 <iv_an_ru> Zakim, +1.213.542.aacc is me
15:10:29 <Zakim> +iv_an_ru; got it
15:10:50 <juansequeda> Zakim, +1.512.471.aaaa is me
15:10:50 <Zakim> +juansequeda; got it
15:12:26 <Ashok> Cancel calls on Sept 26, Oct 3, 17 and 24
15:13:45 <Ashok> Action items:  Ahmed started email thread
15:16:24 <Ashok> Ahmed asks about performance work
15:16:50 <Ashok> Chris Bizer is starting some work in this area
15:17:21 <Ashok> Ashok will forward to XG when he finds out more
15:17:37 <Ashok> Orri:  Chris has a SPARQL benchmark
15:18:03 <Ashok> Mapping imposes some penalty but not much
15:19:27 <Ashok> Chris will circulate second revision of SPARQL benchmark within the next 20 days
15:19:50 <Ashok> Will mesaure triple store as well as 2 mapping approaches
15:20:16 <Ashok> Ashok:  Are is getting mature
15:20:29 <Ashok> Orri:  Certainly for piloy applications
15:21:30 <Ashok> s/piloy/pilot/
15:21:54 <iv_an_ru> http://virtuoso.openlinksw.com/blog/
15:22:18 <Ashok> Orri has blog with some performance numbers.  See above.
15:23:40 <Ashok> Satya:  No further progress on the literature survey
15:25:37 <Ashok> Orri will make presentation on performance numbers -- perhaps next week
15:25:54 <Ashok> Satya to remind xxx re. presentation
15:28:07 <Ashok> Satya will follow up with Asio/BBN folks re. presentation
15:34:10 <Ashok> Discussion of deliverables
15:34:45 <iv_an_ru> BTW there should be one language for both RDB2RDF and RDF2RDB :)
15:35:28 <iv_an_ru> RDB-121-RDF
15:35:43 <Ashok> 1. Satya/Wofgang will convert wiki to a paper
15:36:50 <Ashok> 2. Recommend to the W3C to start a WG to standardize a language for mapping RDB to RDF 
15:37:12 <Ashok> Language will not be concerned with whether data is stored as RDF or accessed virtaully
15:38:01 <Ashok> Perhaps a simple/direct mapping version of the language as well as a more fully featured version allowing extensibility
15:38:13 <iv_an_ru> Virtual access requires much more expressivity of the mapping language than just composing RDF dump.
15:38:56 <iv_an_ru> +q
15:41:37 <Ashok> Ivan:  We would need a mapping from simple syntax to complex syntax
15:43:46 <Ashok> There is also a performance tradeoff
15:44:42 <Ashok> Orri:   We will need the SQL part to be extensible as well.  Many systems have proprietary extensions that we would like to exploit
15:46:13 <Ashok> Cathy:  If the extensibility string gets very complex it is hard to figure out what's going on
15:47:10 <Zakim> -iv_an_ru
15:47:41 <Zakim> - +1.408.504.aabb
15:48:12 <Ashok> Cathy:  Does it have to be XML?
15:48:32 <Ashok> Ashok:  You start from RDB Schema, right?
15:49:05 <Ashok> Orri:  Writing as RDF instance data is very tedious
15:49:40 <Zakim> + +1.408.504.aaee
15:50:34 <Ashok> Orri:  In favor human readable syntax rather than expressing parse tree as XML or RDF
15:52:04 <Ashok> Andrew:  We could have 2 versions of the language -- human and machine readable and allow mapping between then.
15:52:36 <Ashok> By human readable we mean SPARQL-like not natural language
15:52:50 <iv_an_ru> iv_an_ru  owl:instanceOf dbpedia:HomoSapiens ==> I don't want to write XML or RDF, the notation should resemble SQL or a mix of SQL and SPARQL/TURTLE.
15:53:43 <iv_an_ru> At the same time some vendors may decide to export/import descriptions of mappings in RDF form but that's not for initial version of the spec, I guess.
15:54:47 <iv_an_ru> (conference system has disconnected me and do not connect again :(
15:55:32 <Ashok> Orri:  I will create initial set of requirements 
15:56:07 <Ashok> Orri:  I would like some usecases 
15:56:34 <Ashok> Can Cathy send a few representative queries
15:56:56 <Ashok> Cathy:  I will do that
15:57:10 <iv_an_ru> I'd like some usecases that are benchmarks as well, to ensure that we did not forget something important for performance of RDF Views.
15:57:11 <Zakim> - +1.937.775.aadd
15:58:16 <Ashok> 3.  Orri's note re.  marking updated RDF graphs
15:58:54 <Ashok> Ashok:  Not directly in line of the XG
15:59:36 <Ashok> orri:  Useful for customizing triple-stores
15:59:56 <Ashok> Orri:  Rocommends we wait on this
16:01:56 <Zakim> -Andrew_Eisenberg
16:01:57 <Zakim> -??P2
16:01:58 <Zakim> -orri
16:01:59 <Zakim> - +1.408.504.aaee
16:01:59 <Zakim> -juansequeda
16:02:00 <Zakim> -Ashok_Malhotra
16:02:00 <Zakim> -[IBM_Watson]
16:02:01 <Zakim> INC_RDB2RDF()11:00AM has ended
16:02:03 <Zakim> Attendees were Andrew_Eisenberg, Ashok_Malhotra, [IBM_Watson], +1.408.504.aabb, orri, +1.937.775.aadd, iv_an_ru, juansequeda, +1.408.504.aaee
16:02:44 <Ashok> Orri:  The WG that is started should have something to say about this but perhaps the XG need not.
16:03:14 <Ashok> Ashok:  So, let's withdraw this from the list of deliverables for the time being.
16:03:22 <Ashok> AOB?
16:03:34 <Ashok> End of XG Telcon
16:03:46 <Ashok> rrsagent, make logs public
16:04:01 <Ashok> zakim, list participants
16:04:01 <Zakim> sorry, Ashok, I don't know what conference this is
16:04:23 <Ashok> rrsagent, create minutes
16:04:23 <RRSAgent> I have made the request to generate http://www.w3.org/2008/09/05-RDB2RDF-minutes.html Ashok
18:16:00 <Zakim> Zakim has left #RDB2RDF