- From: Oktie Hassanzadeh <oktie@cs.toronto.edu>
- Date: Mon, 20 Jul 2009 16:11:44 -0400
- To: Alan Ruttenberg <alanruttenberg@gmail.com>
- Cc: Hugh Glaser <hg@ecs.soton.ac.uk>, "public-lod@w3.org" <public-lod@w3.org>, Anja Jentzsch <anja@anjeve.de>
On Mon, Jul 20, 2009 at 8:40 AM, Alan Ruttenberg <alanruttenberg@gmail.com> wrote: > > On Mon, Jul 20, 2009 at 7:14 AM, Hugh Glaser<hg@ecs.soton.ac.uk> wrote: > > And just in case you haven't found it, a load of these hard-won equivalences are collected together at sameas.org, such as > > http://sameas.org/?uri=http://data.linkedct.org/resource/intervention/51572 > > Caveat emptor, some of these hard won equivalences will be hard > losses. The sameAs assertions are incorrect. They equate a description > of the values of an independent variable in a clinical study to one of > the drugs administered in the intervention, the drug Ramelteon. > > "Subjects demonstrating low sleep efficiencies and prolonged sleep > latencies, will be randomly assigned to continue to receive SHI > accompanied by either placebo or Ramelteon (8 mg). Matching placebo > will be obtained and the medication pre-packaged and ordered based on > the randomization results" > Thanks for pointing this out. I agree that for this case, sameAs is an incorrect type for the links to other drug sources since intervention is not necessarily a drug, and has a description associated with it. We should treat drug as an entity for the sameAs links to make more sense. I'm working on this and will let you all know once I update the data source. > > It is not straightforward to figure this out, either - there is no > obvious backlink that leads you back from > http://data.linkedct.org/resource/intervention/51572 to the source of > the information http://clinicaltrials.gov/ct2/show/NCT00576927 > where the quote used as the value of linkedct:description is found. > I will look into this as well. There might be a problem with the version of the data source I've used, although the HTML pages have the association between the intervention and the trial now. Thanks, Oktie > While a person browsing this will be able to disambiguate, if you > depend on these equivalences for any sort of reasoning you will land > up dubious conclusions. > > -Alan > > > > > Hugh > > > > On 20/07/2009 05:03, "Oktie Hassanzadeh" <oktie@cs.toronto.edu> wrote: > > > > On Sun, Jul 19, 2009 at 9:00 PM, Amrapali Zaveri <amrapali.zaveri@gmail.com> wrote: > > Hi all, > > > > I am attempting to merge 3 databases: (i) Clinicaltrials.gov <http://clinicaltrials.gov/> , (ii) Geonames <http://www.geonames.org/> , (iii) FDA <http://www.fda.gov/Drugs/InformationOnDrugs/ucm135162.htm> based on ontologies. > > > > There are RDF Triples already defined for (i) http://linkedct.org/index.html and there is already an ontology present for (ii) http://www.geonames.org/ontology/ . However, there is no ontology present for the FDA database. The field "Zip Code" is common for all the three databases. > > > > > > If the FDA datasets are not published as RDF yet, we can certainly take the lead in publishing them as a part of the Linking Open Drug Data [1] project. > > > > [1] http://esw.w3.org/topic/HCLSIG/LODD > > > > LinkedCT already provides links to Geonames, but please let me know if you see any missing links. > > > > > > Regards, > > Oktie > > > > > > Could anyone suggest possibilities of how to merge the three databases, based on ontologies? > > > > Thanks, > > Regards, > > Amrapali J Zaveri > > > > > > > > > > >
Received on Monday, 20 July 2009 20:12:33 UTC