Issue with getEntites method in CoreDBApiHi Alistair, We discussed the case and I will test several approaches to solving the problem. I will send you a solution by tomorrow.
All the Best! DanKo ----- Original Message ----- From: alistair.d...@bt.com To: kim-discussion@ontotext.com Sent: Thursday, August 06, 2009 3:27 PM Subject: Re: [Kim-discussion] Issue with getEntites method in CoreDBApi Hi DanKo, Thanks, but I'm not sure either of those will work. The first one will still leave me with all the entities from the documents after step 3. I just want the entities of a particular type e.g. organizations so I can show a list of the most popular entities in the same way that the default CORE interface does. I had thought about using an intersect in the following way: 1. Call getEntities(CoreDbQuery query) and collect the entities as a set where the query specifies the entitles should be e.g. protont#Organization 2. Call getEntities(Set docIds) and collect the entities as a second set 3. Intersect the two sets to get the necessary entities of the required class. However, it seems the getEntities call is limited to returning 125 entities. Even calling setMaxResultLength on the query with a larger number does not allow you to increase in beyond 125. As such I don't get all the entities I need to carry out the required intersection. With the second one, I want to refine queries using numerical data. Each document has a money value associated with it and I want to allow the user to define a value range to refine the document set. I currently do this via an SQL query. Can I do this via a KIMQuery? I've had a quick look at the java doc and can't see a way although it looks like you can do something using SeRQL: http://www.openrdf.org/doc/sesame/users/ch06.html#d0e1424 Actually if KIM does support this it would make things somewhat easier as I wouldn't need to hold the documents in two separate places i.e. in KIM and in a separate database. Regards, Alistair ---------------------------------------------------------------------------- From: DanKo [mailto:da...@sirma.bg] Sent: 06 August 2009 09:25 To: Duke,AK,Alistair,DER3 R Cc: kim-discussion@ontotext.com Subject: Re: [Kim-discussion] Issue with getEntites method in CoreDBApi Hi Alistar, I consulted with my coleagues and came to the following work-around solution: 1) Call getDocuments(CoreDbQuery query) and collect the document IDs as a set. 2) Then intersect you set of DocIDs with the retrieved one. 3) Then call getEntities(Set docIds) with the resulting set of documents. Other solution - if applicable - could be to add your metadata as additional KIMDocument features. This will allow to get the whole result in one combined search. Greetings! DanKo ----- Original Message ----- From: alistair.d...@bt.com To: da...@sirma.bg Cc: kim-discussion@ontotext.com Sent: Wednesday, August 05, 2009 6:09 PM Subject: RE: [Kim-discussion] Issue with getEntites method in CoreDBApi Hi Danko, Thanks for the speedy reply. The scenario is as follows. I'm running a query which specifies constraints based on structured metadata associated with the documents (this metadata is held outside of KIM in a simple database table). This results in a set of documents which satisfy the query. Since I associated the KIM docIds with these documents at index time, I want to send the resulting KIM docids to KIM to give me the top occuring organisations, people, etc (rather like the default CORE interface) in that result set. The getEntites query seemed like an ideal way to achieve this in one step. I suppose an alternative would be to use ResultSetIterator getEntities(Set docIds) to get all entities and then build some sort of filter to sort the results into organisations, people, etc but this seems rather clunky in comparison. Is there a better way? Thanks, Alistair Alistair Duke Next Generation Web Research Centre for Information & Security Systems Research BT Innovate & Design ___________________________ Office: +44(0) 1473 608192 Mobile: +44(0) 7730 426257 Fax : +44(0) 1473 606755 Email: alistair.d...@bt.com This email contains BT information, which may be privileged or confidential. It's meant only for the individual(s) or entity named above. If you're not the intended recipient, note that disclosing, copying, distributing or using this information is prohibited. If you've received this email in error, please let me know immediately on the email address above. Thank you. We monitor our email system, and may record your emails. British Telecommunications plc Registered office: 81 Newgate Street London EC1A 7AJ Registered in England no: 1800000 ------------------------------------------------------------------------ From: DanKo [mailto:da...@sirma.bg] Sent: 05 August 2009 16:00 To: Duke,AK,Alistair,DER3 R Cc: kim-discussion@ontotext.com Subject: Re: [Kim-discussion] Issue with getEntites method in CoreDBApi Hi Alistar, It happens so that from some time we do not support the: getEntities(Set docIds, CoreDbQuery query) version of the method. It just redirects the execution to: getEntities(CoreDbQuery query) not to break old implementations. It was our oversight that we didn't remarked it in the documentation. But you can share the querying scenario you try to implements and we will help with it. Greetings, DanKo ----- Original Message ----- From: alistair.d...@bt.com To: kim-discussion@ontotext.com Sent: Wednesday, August 05, 2009 2:55 PM Subject: [Kim-discussion] Issue with getEntites method in CoreDBApi Hi again, I've found some strange behaviour when using the getEntities method of the CoreDbApi. If I use the ResultSetIterator getEntities(Set docIds) form it works fine i.e. I just get the entities in the documents defined in the set. However, if I use the ResultSetIterator getEntities(Set docIds, CoreDbQuery query) form, it only seems to look at the query restrictions and ignores the docid restrictions. This means I get all entites regardless of whether they are in the specified documents or not. I'm using KIM 2.5. Is this something you've come across? Thanks, Alistair Alistair Duke Next Generation Web Research Centre for Information & Security Systems Research BT Innovate & Design ___________________________ Office: +44(0) 1473 608192 Mobile: +44(0) 7730 426257 Fax : +44(0) 1473 606755 Email: alistair.d...@bt.com This email contains BT information, which may be privileged or confidential. It's meant only for the individual(s) or entity named above. If you're not the intended recipient, note that disclosing, copying, distributing or using this information is prohibited. If you've received this email in error, please let me know immediately on the email address above. Thank you. We monitor our email system, and may record your emails. 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