March 2024 - Wikibase-cloud - lists.wikimedia.org

Problem creating new wikibase
by Matthew Ong 03 Apr '24

03 Apr '24

Hello, Recently I have been creating test wikibase projects on wikibase-cloud and deleting them when the test was over. I noticed initially on the wikibase-cloud console that I could have a maximum of 6 wikibases created at a time. However today when I tried to create another wikibase from the console I got a 'Creation Failed' message in red. Is this because a person can create a maximum of 6 wikibases total on their account? If so, this was not made clear before...

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Problem retrieving sparql query results for bulk data recently uploaded
by Matthew Ong 29 Mar '24

29 Mar '24

Hello, I noticed today a major problem on my Wikibase-cloud project with respect to a particular sparql query (see below). After using WikibaseIntegrator to bulk create about 300,000 items all having a specific 'instance of X' statement, a sparql query that tried to retrieve those items on the basis of that 'instance of X' statement failed to retrieve any of them. It isn't a problem with the query syntax since changing X to another item Y yields proper results. The item X is retrievable via its Qid and label in the main search box. Does anyone have experience with this problem or know what is going on? Query: https://framenet-akkadian257.wikibase.cloud/query/#PREFIX%20pr%3A%20%3Chttp… .

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Re: how to set up the Wikibase.cloud query service
by Matthew Ong 28 Mar '24

28 Mar '24

Hi Linda, I believe your prefix 'ktv' needs to be defined as < https://tdkiv.wikibase.cloud/prop/direct/>. You can see the how the prefix patterns work in general at https://www.mediawiki.org/wiki/Wikibase/Indexing/RDF_Dump_Format#Prefixes_u… . However, when I myself made this change I still did not get your item Q10 in the query. Perhaps you should add a label to the item? Matt

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how to set up the Wikibase.cloud query service
by Linda Jansová 28 Mar '24

28 Mar '24

Dear all, I have just started using Wikibase.cloud and have set up this instance: https://tdkiv.wikibase.cloud/ I have added one property (https://tdkiv.wikibase.cloud/wiki/Property:P1) and imported some data (e.g., https://tdkiv.wikibase.cloud/wiki/Item:Q10). Now I would like to get a list of all items (their QIDs) with P1 present. I have tried the following query: https://tdkiv.wikibase.cloud/query/embed.html#PREFIX%20ktd%3A%20%3Chttp%3A%… A short URL to query results: https://tinyurl.com/2dcy62zk But, unfortunately, it gives no results. I suppose it maybe a config issue (I have just used the query service as it is available out-of-the box with a new Wikibase.cloud instance). Also, due to the nature of the values assigned P1 which are longer texts, I have set up String and Monolingual text to a maximum of 2000 chars. I hope it won’t be an underlying issue for the query but I am just noting it here as the config page mentions that “Longer than default lengths (which are used on Wikidata) is generally untested and might have some unexpected outcomes.” What (and where) should I check or set up to make the query service work? Or how should I change my query to make it return the results I hope for :-)? Thank you in advance for your help! Linda --- Linda Jansova National Library of the Czech Republic linda.jansova(a)nkp.cz linda.jansova(a)gmail.com

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Strange issue with sparql query
by Matthew Ong 23 Mar '24

23 Mar '24

Hello all again, I was wondering if anyone knew why a straightforward sparql query on my wikibase-cloud project should somehow miss a result it should normally find: " PREFIX pr: <https://framenet-akkadian.wikibase.cloud/prop/direct/> PREFIX it: <https://framenet-akkadian.wikibase.cloud/entity/> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> SELECT DISTINCT ?qItem ?documentLabel ?idDocumentString WHERE { ?qItem pr:P3 it:Q52 . #P3 = instance of, Q52 = Document ?qItem rdfs:label ?documentLabel . ?qItem pr:P24 ?idDocumentString . #P24 = has idDocument (DataType String) } " The problem is that the search results (https://tinyurl.com/2dqmn6xe) miss a Qitem (https://framenet-akkadian.wikibase.cloud/wiki/Item:Q2483) that should be listed with idDocumentString = '32'. But the page for the Qitem shows it has a statement of providing this value. The query seems to get most or all other Qitems that have an idDocument field.

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Strange problem importing statements involving foreign language strings
by Matthew Ong 23 Mar '24

23 Mar '24

Hello all, I was wondering if anyone knew the reason behind the following error I get using wikibaseIntegrator to import a Qitem that has a claim whose value is a text string in Akkadian? wikibaseintegrator.wbi_exceptions.ModificationFailed: 'Malformed input: ana šarri bēlīya aradka Gimillu' The key lines of code that generate this error should be straightforward: sentence_text = str(row['text'])[:200] new_sentence.claims.add(datatypes.String(prop_nr=has_text, value=sentence_text)) s_id = new_sentence.write().id where sentence_text is something like 'ana šarri bēlīya aradka Gimillu'. I don't understand what the problem is.

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Problem with 413 Client Error
by Matthew Ong 19 Mar '24

19 Mar '24

Hello, I have been using WikibaseIntegrator to import a large amount of data to my wikibase-cloud project. I recently started getting the following error when importing certain forms/statements under the lexeme.write() command: requests.exceptions.HTTPError: 413 Client Error: Request Entity Too Large for url: https://framenet-akkadian.wikibase.cloud/w/api.php Although it seems clear this is because the 'lexeme' is too big, I don't know exactly why it should be considered big on my machine's end. I don't add a lot of information at any one time. It happens only for forms of one particular lexeme, which has quite a lot of forms relatively speaking as well as statements under those forms. Matt

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Re: Using RaiseWikibase on Wikibase cloud?
by Matthew Ong 15 Mar '24

15 Mar '24

Ok. Thanks!

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Using RaiseWikibase on Wikibase cloud?
by Matthew Ong 15 Mar '24

15 Mar '24

Hello, I was wondering if it is possible to use RaiseWikibase with a Wikibase cloud instance? I am finding WikibaseIntegrator is too slow for my purposes. Matt

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Re: Question about the time table of deleted Q-items and results of sparql query
by Matthew Ong 10 Mar '24

10 Mar '24

I also noticed today after a 24 hour period that one big block of mass deletes no longer appeared in sparql queries, but an older, much smaller block still is appearing in the queries. I don't understand the logic...

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Wikibase-cloud March 2024