Hi Sebastian maybe this is because there was a small error in the last example of this mail. I corrected that in an other mail (see http://markmail.org/message/cthhswxjhkfgtpw2)
> XMLHttpRequest cannot load > http://dev.iks-project.eu:8081/entityhub/site/ookaboo/query?{%22ldpath%22:%22@prefix%20oo%20:%20%3Chttp://rdf.ookaboo.com/object/%3E;%20schema:name%20=%20oo:label;%20schema:image%20=%20^oo:depicts;%20owl:samAs;%22,%22constraints%22:[{%22type%22:%22reference%22,%22field%22:%22http://www.w3.org/2002/07/owl. > Origin http://localhost:8888 is not allowed by Access-Control-Allow-Origin. This request looks incomplete as it stops in the middle of the constraint for the Entityhub FieldQuery. If I remember correctly Origin http://localhost:8888 is not allowed by Access-Control-Allow-Origin must not necessarily be related to an CORS related problem as jQuery will return this message on any error with an request the is cross domain. If this is not the cause for the problem, than I suggest to have a talk on IRC. best Rupert On 10.05.2012, at 18:11, Sebastian Germesin wrote: > Hi Rupert, > > small question. I am currently extending the vie image search widget to use > the ookaboo images from your entityhub installation. > > Using your query (see 4), I get an error: > > XMLHttpRequest cannot load > http://dev.iks-project.eu:8081/entityhub/site/ookaboo/query?{%22ldpath%22:%22@prefix%20oo%20:%20%3Chttp://rdf.ookaboo.com/object/%3E;%20schema:name%20=%20oo:label;%20schema:image%20=%20^oo:depicts;%20owl:samAs;%22,%22constraints%22:[{%22type%22:%22reference%22,%22field%22:%22http://www.w3.org/2002/07/owl. > Origin http://localhost:8888 is not allowed by Access-Control-Allow-Origin. > > Am I doing something wrong here? Unfortunately, this is a blocker for using > ookaboo within the widget at the moment. > > This is the code to test (you need to include jQuery in the tab in the middle > to get it actually running. > > http://jsbin.com/iyuwux/2/edit > > > Thanks for your help, > > Sebastian > On 16.02.2012, at 16:18, Rupert Westenthaler wrote: > >> Hi Sebastian, Stanbol community, IKS project Members >> >> Introduction >> ========= >> >> This mail describes how the ookaboo (http://about.ookaboo.com/) image >> databank can be searched by using the Apache Stanbol Entityhub. >> >> This mail describes three different usage scenarios: >> >> (1) search images based on name >> (2) search images for entities based on name >> (3). search images for given dbpedia/freebase concepts >> >> Finally (4) provides information on how to get information on different >> available image variants (icon, thumbnail, … , large, original) for found >> images. >> >> >> Test Server and ookaboo Index >> ======================== >> >> The ookaboo dataset is now available on the IKS server >> >> http://dev.iks-project.eu:8081/entityhub/site/ookaboo/ >> >> The index is also downloadable form >> >> http://dev.iks-project.eu/downloads/stanbol-indices/ >> >> for users that want to install it locally. >> >> The remaining part of this Mail will provide you with examples on how to use >> the ookaboo dataset via the entityhub >> >> >> UseCases >> ======== >> >> (1) You can use the normal find queries to find images for lables >> >> e.g. >> >> curl -X POST -d "name=Bischofshofen&limit=10&offset=0" >> http://dev.iks-project.eu:8081/entityhub/site/ookaboo/find >> >> This will directly return Images - resources of rdf:type >> http://rdf.ookaboo.com/object/Image >> >> (2) you can search for Entities by name >> >> curl -X POST -d >> "name=Bischofshofen&limit=10&offset=0&field=http://rdf.ookaboo.com/object/label"; >> http://dev.iks-project.eu:8081/entityhub/site/ookaboo/find >> >> This will NOT return images but Topics - >> "http://rdf.ookaboo.com/object/Topic"; >> >> (2.b) you can combine Entity searches with a little LDPath magic to directly >> get the pictures for suggested Entities >> >> curl -X POST -d >> "name=Bischofsh*&limit=10&offset=0&field=http://rdf.ookaboo.com/object/label&ldpath=@prefix >> oo : <http://rdf.ookaboo.com/object/>; schema:name = oo:label; schema:image >> = ^oo:depicts;" http://dev.iks-project.eu:8081/entityhub/site/ookaboo/find >> >> this will return the properties >> >> schema:name … with the name of the Entity >> schema:image … with the images for the Entity >> >> (3) you can search for the depictions for a known DBPedia concept >> >> In this case you will need to use the /query endpoint, because /find only >> supports text based searches >> >> FieldQuery (application/json) >> >> { >> "ldpath": "@prefix oo : <http:\/\/rdf.ookaboo.com\/object\/>; schema:name >> = oo:label; schema:image = ^oo:depicts; owl:samAs;", >> "constraints": [ >> { >> "type": "reference", >> "field": "http:\/\/www.w3.org\/2002\/07\/owl#sameAs", >> "value": "http:\/\/dbpedia.org\/resource\/Salzburg", >> } >> ], >> "offset": "0", >> "limit": "3", >> } >> >> The "value" of the of the "reference" constraint represents the >> DBPedia/Freebase resource you want to find images for. In the above Example >> it is set to Salzburg " http://dbpedia.org/resource/Salzburg"; >> >> The RESTful Request looks like this (assuming the above field query is >> stored in the file "./fieldQuery.json" >> >> curl -X POST -H "Accept: application/rdf+xml" -H >> "Content-Type:application/json" --data "@fieldQuery.json" >> http://dev.iks-project.eu:8081/entityhub/site/ookaboo/query >> >> This will return the properties >> schema:name … with the name of the Entity >> schema:image … with the images for the Entity >> owl:sameAs … all (dbpedia and freebase entities mapped to this ookabpoo >> topic) >> >> (3.b) Exact Picture search >> >> You need to know, that typically a lot of Entities are redirected to a >> single Topic (e.g "http://dbpedia.org/resource/Mirabell_Palace"; -> >> "http://dbpedia.org/resource/Salzburg";). Therefore the solution (3) will >> give you Images for most DBPedia concepts, but may return Images that do >> actually show only something related and not the requested Concept itself. >> >> If you only want to search for exact matches you need to use >> "http://rdf.ontology2.com/vocab#akaPrimary:akaPrimary"; instead of >> "owl:sameAs" to query. See the following fieldQuery for such an example. >> >> { >> "ldpath": "@prefix oo : <http:\/\/rdf.ookaboo.com\/object\/>; schema:name >> = oo:label; schema:image = ^oo:depicts; owl:sameAs;", >> "constraints": [ >> { >> "type": "reference", >> "field": "http:\/\/rdf.ontology2.com\/vocab#akaPrimary", >> "value": "http:\/\/dbpedia.org\/resource\/Salzburg", >> } >> ], >> "offset": "0", >> "limit": "3", >> } >> >> (4) using LDPath to query additional information about Images - resources of >> rdf:type http://rdf.ookaboo.com/object/Image >> >> (1) directly retunes Images and (2),(2.b),(3) and (3.b) provide the images >> as values of the schema:image property. This Example now shows how to easily >> get the different versions (available image sizes) >> >> As the Entityhub supports LDPath the easiest way is to use the >> "http://dev.iks-project.eu:8081/entityhub/site/ookaboo/ldpath"; endpoint >> >> Here is the LDPath program I used for testing: >> >> @prefix oo : <http://rdf.ookaboo.com/object/>; >> title = oo:title; >> icon = oo:alternativeSize[oo:sizeCode is "sq"]; >> thumbnail = oo:alternativeSize[oo:sizeCode is "t"]; >> small = oo:alternativeSize[oo:sizeCode is "s"]; >> medium = oo:alternativeSize[oo:sizeCode is "m"]; >> large = oo:alternativeSize[oo:sizeCode is "l"]; >> >> Note: This LD-Path program requires a fix in LD-Path that is currently not >> yet available to Stanbol. So if you get an NullPointerException on your >> local installation AND you use an up-to-date Stanbol version you will need >> to wait some more days. However you can use the dev.iks-project.eu:8081 >> server in the meantime. >> >> You should definitely use the Web interface provided by >> "http://dev.iks-project.eu:8081/entityhub/site/ookaboo/ldpath"; to test your >> LDPath programs before using the RESTful interface. >> >> The curl command to query the Image information for >> >> >> http://upload.wikimedia.org/wikipedia/commons/0/00/Salzburger_Stadtteile.jpg >> >> would look like that (looks very strange because you need to URLEncode the >> LDPath) >> >> curl -X POST -d >> "context=http://upload.wikimedia.org/wikipedia/commons/0/00/Salzburger_Stadtteile.jpg&ldpath=%40prefix%20oo%20%3A%20%3Chttp%3A%2F%2Frdf.ookaboo.com%2Fobject%2F%E%3B%20title%20%3D%20oo%3Atitle%3B%20icon%20%3D%20oo%3AalternativeSize%5Boo%3AsizeCode%20is%20%22sq%22%5D%3B%20thumbnail%20%3D%20oo%3AalternativeSize%5Boo%3AsizeCode%20is%20%22t%22%5D%3B%20small%20%3D%20oo%3AalternativeSize%5Boo%3AsizeCode%20is%20%22s%22%5D%3B%20medium%20%3D%20oo%3AalternativeSize%5Boo%3AsizeCode%20is%20%22m%22%5D%3B%20large%20%3D%20oo%3AalternativeSize%5Boo%3AsizeCode%20is%20%22l%22%5D%3B%20depicts%20%3D%20oo%3Adepicts%2Fowl%3AsameAs%3B"; >> http://dev.iks-project.eu:8081/entityhub/site/ookaboo/ldpath >> >> and returns >> >> [… removed json-ld header …] >> "@subject": >> "http://upload.wikimedia.org/wikipedia/commons/0/00/Salzburger_Stadtteile.jpg";, >> "icon": "http://images.ookaboo.com/photo/sq/Salzburger_Stadtteile_sq.jpg";, >> "large": "http://images.ookaboo.com/photo/l/Salzburger_Stadtteile_l.jpg";, >> "medium": "http://images.ookaboo.com/photo/m/Salzburger_Stadtteile_m.jpg";, >> "small": "http://images.ookaboo.com/photo/s/Salzburger_Stadtteile_s.jpg";, >> "thumbnail": "http://images.ookaboo.com/photo/t/Salzburger_Stadtteile_t.jpg";, >> "title": { >> "@literal": "Districts of Salzburg", >> "@language": "en" >> } >> } >> >> Note that >> >> * the @subject is the original >> * Icon ~ 75px x 75px >> * thumbnail = max 100px keeping aspect ratio >> >> >> This should have provide you with all the information needed to use ookaboo. >> If any additional question arrives feel free to ask. >> >> Happy Image Searches >> >> best >> Rupert Westenthaler >> > > -- > M.Sc. Sebastian Germesin > > DFKI GmbH > Campus D3 2 > Stuhlsatzenhausweg 3 > D-66123 Saarbruecken, Germany > > phone: +49 (681) 85775 - 5079 > fax: +49 (681) 85775 - 5021 > mail: [email protected] > http: www.dfki.de/~germesin > skype: neogermi1337 > twitter: germesin > > -- > Deutsches Forschungszentrum fuer Kuenstliche Intelligenz (DFKI) GmbH > Firmensitz: Trippstadter Strasse 122, D-67663 Kaiserslautern; Amtsgericht > Kaiserslautern, HRB 2313 > Geschaeftsfuehrung: Prof. Dr. Dr. h.c. mult. Wolfgang Wahlster > (Vorsitzender), Dr. Walter Olthoff > Vorsitzender des Aufsichtsrats: Prof. Dr. h.c. Hans A. Auke
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![http://images.ookaboo.com/photo/sq/Salzburger_Stadtteile_sq.jpg"](http://images.ookaboo.com/photo/sq/Salzburger_Stadtteile_sq.jpg"){kind=link}
![http://images.ookaboo.com/photo/l/Salzburger_Stadtteile_l.jpg"](http://images.ookaboo.com/photo/l/Salzburger_Stadtteile_l.jpg"){kind=link}
![http://images.ookaboo.com/photo/m/Salzburger_Stadtteile_m.jpg"](http://images.ookaboo.com/photo/m/Salzburger_Stadtteile_m.jpg"){kind=link}
![http://images.ookaboo.com/photo/s/Salzburger_Stadtteile_s.jpg"](http://images.ookaboo.com/photo/s/Salzburger_Stadtteile_s.jpg"){kind=link}
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