IRC log of dig on 2012-04-09
Timestamps are in UTC.
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- 11:12:06 [barjavel.freenode.net]
- topic is: Decentralized Information Group @ MIT http://dig.csail.mit.edu/
- 11:12:06 [barjavel.freenode.net]
- Users on #dig: DIGlogger RalphS cheater melvster bblfish rszeno kennyluck presbrey manu1 nunnun_away bergi manu-db sandro mattl ericP betehess
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- 19:11:25 [timbl]
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- 19:11:28 [timbl]
- http://www.w3.org/2001/tag/doc/publishingAndLinkingOnTheWeb-2012-01-04.html
- 19:11:41 [timbl]
- http://www.jenitennison.com/,">http://www.jenitennison.com/, http://www.jenitennison.com/
- 19:11:41 [timbl]
- http://www.torgo.com/, http://www.telefonica.com/
- 19:12:07 [timbl]
- he difference between linking linking and embeding linking
- 19:21:38 [manu-db]
- timbl - new updates to general RDF graph normalization solution (implementation here): https://github.com/digitalbazaar/jsonld.js/blob/master/js/jsonld.js#L1192
- 19:22:27 [manu-db]
- updates include: better performance via short-circuiting bnode naming algorithm, less memory overhead, faster speed.
- 19:23:20 [manu-db]
- we had thought we found a solution in polynomial time, but unfortunately after weeks of testing, it turned out to have a flaw. We may revisit that algorithm because it allowed you to normalize 10K bnode graphs in a matter of seconds vs. it being nearly impossible to do so with the current algorithm.
- 19:24:05 [manu-db]
- in short: progress is being made, but more slowly than we'd like. We think this is the version we're going to freeze, document in a spec, and publish at W3C as a Note for now... then maybe a REC once it gets more eyes on it.
- 19:24:45 [manu-db]
- it is a general solution for RDF graph normalization, and it does have incredibly good performance characteristics for 99.99% of the graphs out there.
- 19:25:27 [manu-db]
- The only place it falls down is when somebody feeds it a "poison" graph (lots and lots of identical bnodes with identical predicates and data).
- 19:25:48 [manu-db]
- (but even then, you can detect it and fail out of the algorithm before expending too much effort)
- 19:27:31 [manu-db]
- The current algorithm is also highly parallel - suited for implementation on hundreds of cores simultaneously, if necessary.
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