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Jheald (James Heald)
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Feb 19 2015, 9:09 PM (217 w, 6 d)
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Recent Activity

Today

Jheald added a parent task for T194401: Investigate storing commons data in BlazeGraph: T141602: [Story] Provide a SPARQL query service for structured data on Commons.
Thu, Apr 25, 9:15 AM · SDC Engineering (Depicts and other statements on a bicycle), Wikidata-Query-Service, Multimedia-Team-Working-Board, Epic, Multimedia, SDC General, Wikidata
Jheald added a subtask for T141602: [Story] Provide a SPARQL query service for structured data on Commons: T194401: Investigate storing commons data in BlazeGraph.
Thu, Apr 25, 9:15 AM · Story, SDC General, Commons, Wikidata

Tue, Apr 16

Jheald added a comment to T204440: analyze and visualize the identifier landscape of Wikidata.

@GoranSMilovanovic As per @agray : No -- my numbers were counting distinct items with the external IDs, rather than distinct statements, so should exactly match what you're aiming to compute.

Tue, Apr 16, 5:16 PM · WMDE-Analytics-Engineering, User-GoranSMilovanovic, Wikidata
Jheald added a comment to T204440: analyze and visualize the identifier landscape of Wikidata.

@GoranSMilovanovic Overlap table for P 1367 (Art UK Artist ID) now showing about two-thirds of the overlap hits that it should be. (VIAF 6825, ULAN 6153, RKD 5582, ISNI 4240, Benezit 4643) vs true VIAF 11633, ULAN 10552, RKD 9769, ISNI 8237, Benezit 7529.

Tue, Apr 16, 2:41 PM · WMDE-Analytics-Engineering, User-GoranSMilovanovic, Wikidata

Mon, Apr 15

Jheald added a comment to T204440: analyze and visualize the identifier landscape of Wikidata.

@Envlh That's very nice. So for example, here are your comparison tables for
P 1367 (Art UK Artist ID): https://tools.dicare.org/properties/?property=1367&type[]=ExternalId
and for P 650 (RKDArtists ID): https://tools.dicare.org/properties/?property=650&type[]=ExternalId

Mon, Apr 15, 3:27 PM · WMDE-Analytics-Engineering, User-GoranSMilovanovic, Wikidata
Jheald added a comment to T204440: analyze and visualize the identifier landscape of Wikidata.

When you've got the data sorted, a table showing the closest identifiers by Jaccard similarity, rather than total overlap, might be quite interesting.

Mon, Apr 15, 12:47 PM · WMDE-Analytics-Engineering, User-GoranSMilovanovic, Wikidata
Jheald added a comment to T204440: analyze and visualize the identifier landscape of Wikidata.

The numbers in the overlap data table for P 1367 (Art UK Artist ID) are way off as well -- only one tenth of the VIAF and ULAN overlaps correctly reported, only one twentieth of the RKD Artist ID overlaps.

Mon, Apr 15, 12:42 PM · WMDE-Analytics-Engineering, User-GoranSMilovanovic, Wikidata

Jan 29 2019

Jheald added a comment to T214557: Allow accessing Wikibase entities from multiple (Wikibase) databases.

Why are we baking in the assumption that only one Wikibase instance can be associated with a particular entity type?

Jan 29 2019, 3:15 PM · MW-1.33-notes (1.33.0-wmf.23; 2019-03-26), Wikidata-Campsite (Wikidata-Campsite-Iteration-∞), Patch-For-Review, wikidata-tech-focus, Wikidata

Jan 16 2019

Jheald added a comment to T211800: Resolve ambiguity of entity ID prefixes used on Commons..

As a postscript to my comment two posts above, note that in such a scenario a Commons category page might well be associated with both an item on Wikidata (via a sitelink equivalence) and a local item on the Commons wikibase.

Jan 16 2019, 2:41 PM · wikidata-tech-focus, User-Addshore, MediaWiki-extensions-WikibaseRepository, Wikidata, SDC General, Commons

Jan 12 2019

Jheald added a comment to T185912: Develop tactics for wikitext data/template migration to Structured Data.

See also: T180113 "Support the creation and use of volunteer tools that help to convert information in Commons categories to structured data"

Jan 12 2019, 11:44 PM · Epic, SDC General, Wikidata, Multimedia, Multimedia-Team-Working-Board
Jheald added a comment to T211800: Resolve ambiguity of entity ID prefixes used on Commons..

In the context of this thread, it's worth recalling the ongoing wish from Commons users for Commons categories to be able to have their own local items on the Commons wikibase.

Jan 12 2019, 11:31 PM · wikidata-tech-focus, User-Addshore, MediaWiki-extensions-WikibaseRepository, Wikidata, SDC General, Commons

Jan 11 2019

Jheald updated the task description for T178144: Clarify licensing status of data on Structured Commons.
Jan 11 2019, 9:33 PM · WMF-Legal, SDC General, Wikidata

Nov 16 2018

Jheald added a comment to T209697: Provide Mirador service on the Wikimedia Cloud/Toolforge.

Hi @JeanFred . The point is not so much to link multiple versions of the same viewer, but rather to link to some of the different viewers available, for example here is the Alba Madonna in the "Universal Viewer" used as a default by the Wellcome Collection and the British Library and others.

Nov 16 2018, 10:40 PM · patch-welcome, Multimedia
Jheald added a comment to T209697: Provide Mirador service on the Wikimedia Cloud/Toolforge.

Note that there has been some discussion on the IIIF mailing list as to whether a https://www.wikidata.org/wiki/Property:P1630 URL formatter should be added for the property:

Nov 16 2018, 9:46 PM · patch-welcome, Multimedia

Nov 2 2018

Jheald added a comment to T199228: Define an SLO for Wikidata Query Service public endpoint and communicate it.

To support what Smalyshev said: occasional termporary update lag may not be such a high-priority issue; but prolonged or repeated update lag rapidly would be.

Nov 2 2018, 2:02 PM · Operations, Discovery-Wikidata-Query-Service-Sprint, Wikidata-Query-Service, Wikidata

Oct 15 2018

Jheald added a comment to T177475: Create a map-on-the-fly feature for people and objects for Wikidata items.

Very nice!

Oct 15 2018, 9:45 PM · Wikidata Query UI, Maps (Maps-data), Wikidata

Oct 12 2018

Jheald added a comment to T194401: Investigate storing commons data in BlazeGraph.

That's nice. I didn't know that service included Commons.

Oct 12 2018, 5:44 PM · SDC Engineering (Depicts and other statements on a bicycle), Wikidata-Query-Service, Multimedia-Team-Working-Board, Epic, Multimedia, SDC General, Wikidata
Jheald added a comment to T187872: Support IIIF Image API for thumbnailing & tiling of images.

(Copied from T173346)
I'd like to note strong interest on two different occasions from two different people in the last month in a top-tier GLAM that I'm working with, about the possibility of being able to use Commons as an IIIF hosting service for high-resolution images, eg for serving tiles of old maps for geo-referencing to platforms that need to be able to access images from an IIIF service.

Oct 12 2018, 11:18 AM · Multimedia, Commons, MediaWiki-File-management
Jheald added a comment to T173346: Implement IIIF support on Wikimedia Commons in relation with Structured Data on Commons.

Not sure if this is the right ticket for this information, but I'd like to note strong interest on two different occasions from two different people in the last month in a top-tier GLAM that I'm working with, about the possibility of being able to use Commons as an IIIF hosting service for high-resolution images, eg for serving tiles of old maps for geo-referencing to platforms that need to be able to access images from an IIIF service.

Oct 12 2018, 11:13 AM · Wikidocumentaries, SDC General, Wikidata
Jheald added a comment to T194401: Investigate storing commons data in BlazeGraph.

Presumably (as the original ticket suggests), one option would be to set up a Commons Data Query Service (CDQS) as a distinct endpoint on a new server that had both Wikidata and CommonsData installed in a Blazegraph instance locally. This would allow the existing WDQS service to continue without alteration, while allowing the CDQS service set-up to be optimised, as we learn more about the sort of queries that people want to run.

Oct 12 2018, 10:32 AM · SDC Engineering (Depicts and other statements on a bicycle), Wikidata-Query-Service, Multimedia-Team-Working-Board, Epic, Multimedia, SDC General, Wikidata

Oct 8 2018

Jheald added a comment to T154660: Increase length limit for external identifier, string and URL datatype.

The 400 character limit can also be a problem for the titles of old books, maps, etc -- the original titles of these, as given eg in library catalogues, can get pretty long.

Oct 8 2018, 9:55 PM · User-Addshore, MW-1.33-notes (1.33.0-wmf.9; 2018-12-18), Patch-For-Review, Wikidata-Campsite (Wikidata-Campsite-Iteration-∞), MediaWiki-extensions-WikibaseRepository, Wikidata

Oct 7 2018

Jheald added a comment to T177475: Create a map-on-the-fly feature for people and objects for Wikidata items.

See this query: tinyurl.com/y76l2bft for an example of how to draw lines on a WDQS results map, based on values from variables in a WDQS query (in this case, drawing the bounding boxes of some maps)

Oct 7 2018, 1:55 PM · Wikidata Query UI, Maps (Maps-data), Wikidata

Aug 14 2018

Jheald added a comment to T173346: Implement IIIF support on Wikimedia Commons in relation with Structured Data on Commons.

Thanks @SandraF_WMF . I've started putting together some links at :c:User:Jheald/IIIF_180815 that I or Andy Mabbett could talk through, to give an idea of what sort of IIIF interaction is possible at the moment.

Aug 14 2018, 12:31 PM · Wikidocumentaries, SDC General, Wikidata

Aug 13 2018

Jheald added a comment to T173346: Implement IIIF support on Wikimedia Commons in relation with Structured Data on Commons.

A heads-up that "Wikipedia and IIIF" is the proposed subject for the IIIF community call this week -- see https://groups.google.com/forum/?hl=en#!topic/iiif-discuss/wy2uRl_ukJ0

Aug 13 2018, 8:41 AM · Wikidocumentaries, SDC General, Wikidata

Jul 16 2018

Jheald added a comment to T191633: Implement searching of 'depicts' on commons.

Interesting slide-show. But the fundamental problem -- as some of the attached tickets start to appreciate -- is that the key information that determines whether an image fits the specification being looked for is not going to be stored in statements just on the CommonsData item for the image in question, nor just on the Wikidata item for the thing it depicts, but is going to depend on statements distributed throughout the database.

Jul 16 2018, 1:45 PM · SDC-Statements (Depicts-on-training-wheels), SDC Engineering, Discovery-Search, Epic, Multimedia, Wikidata, SDC General

Jul 14 2018

Jheald added a comment to T194401: Investigate storing commons data in BlazeGraph.

Well of course you're going to copy all the CommonsData statements to Blazegraph.

Jul 14 2018, 10:55 PM · SDC Engineering (Depicts and other statements on a bicycle), Wikidata-Query-Service, Multimedia-Team-Working-Board, Epic, Multimedia, SDC General, Wikidata
Jheald added a comment to T191633: Implement searching of 'depicts' on commons.

I have now found T198261 and T199119, which investigate how some of the drawbacks above with the simple string-matching approach might be addressed.

Jul 14 2018, 10:44 PM · SDC-Statements (Depicts-on-training-wheels), SDC Engineering, Discovery-Search, Epic, Multimedia, Wikidata, SDC General
Jheald added a comment to T199119: Research relationships between items in wikidata.

I'd say don't give up too easily. This is probably as good an approach as any. If the issues are structural, bots will fall prey to them in just the same way, just more slowly and more haphazardly.

Jul 14 2018, 10:39 PM · Multimedia, SDC General, Wikidata, Multimedia-Team-Working-Board
Jheald added a comment to T185946: Design UI/UX for Commons File page revamp (SDoC).

Don't you think you should maybe talk to the community about this first ?

Jul 14 2018, 7:36 PM · Multimedia, Multimedia-Team-Working-Board, SDC General
Jheald added a comment to T191633: Implement searching of 'depicts' on commons.

Another example, where such image searches may depend quite sensitively on query construction or query optimisation: Category:Grade I listed buildings in Bedfordshire.

Jul 14 2018, 4:33 PM · SDC-Statements (Depicts-on-training-wheels), SDC Engineering, Discovery-Search, Epic, Multimedia, Wikidata, SDC General
Jheald added a comment to T191633: Implement searching of 'depicts' on commons.

The attached subtickets are an interesting read. They all seem to be based on taking the Q-number value of "depicts", storing it as a string in the text-search index, and then doing an indexed string-match for it. Of course first baby-steps are important, and this facility will be crucial to be able to confirm correct entry, storage, and direct retrievability of "depicts" values.

Jul 14 2018, 3:11 PM · SDC-Statements (Depicts-on-training-wheels), SDC Engineering, Discovery-Search, Epic, Multimedia, Wikidata, SDC General

Mar 2 2018

Jheald added a comment to T181062: Adapt QuickStatements2 to be able to work with structured data on Commons as well.

One sidelight on this. QS2 is great (invaluable!) for adding new statements, but not so good for modifying existing statements, especially if they are currently heavily qualified or referenced -- at the moment, the entire statement complete with all qualifiers and references has to be re-created, even if one only wants to change one qualifier value, or migrate the property being used for the qualifier.

Mar 2 2018, 5:01 PM · GLAM-Tech, SDC General, Wikidata
Jheald added a comment to T89552: Implement International Image Interoperability Framework (IIIF) prototype service on Wikimedia labs.

IIIF image extracts seem to be broken again: see eg the 'Virgin amongst the virgins' test page at Crotos

Mar 2 2018, 1:48 PM · SDC General, Wikidata, Possible-Tech-Projects, Wikimedia-General-or-Unknown, Multimedia

Nov 21 2017

Jheald added a comment to T180113: Support the creation and use of volunteer tools that help to convert information in Commons categories to structured data.

Hi Magnus,

Nov 21 2017, 6:00 PM · CommRel-Specialists-Support, Wikidata, SDC General

Sep 18 2017

Jheald added a comment to T89552: Implement International Image Interoperability Framework (IIIF) prototype service on Wikimedia labs.

That looks so great now. Thank you! (And @Shonagon ).

Sep 18 2017, 7:34 PM · SDC General, Wikidata, Possible-Tech-Projects, Wikimedia-General-or-Unknown, Multimedia
Jheald added a comment to T89552: Implement International Image Interoperability Framework (IIIF) prototype service on Wikimedia labs.

@dschwen Any idea why the IIIF-based detail viewer is working for the images on this page of Shonagon's:

Sep 18 2017, 7:12 PM · SDC General, Wikidata, Possible-Tech-Projects, Wikimedia-General-or-Unknown, Multimedia

Sep 4 2017

Jheald created T174930: Problem with federated SPARQL query using UK Ordnance Survey open data -- bad prefix URL being sent ?.
Sep 4 2017, 12:31 PM · Patch-For-Review, User-Smalyshev, Discovery, Wikidata, Wikidata-Query-Service

Aug 21 2017

Jheald added a comment to T169858: Add support for “instance or subclass of” relation (days: 1).

It would be good to make this work.

Aug 21 2017, 4:40 PM · MW-1.31-release-notes (WMF-deploy-2018-02-06 (1.31.0-wmf.20)), Patch-For-Review, Wikidata-Sprint-2018-01-17, Wikibase-Quality-Constraints, Wikibase-Quality, Wikidata

Apr 5 2017

Jheald created T162266: Changes to Wikidata formatter URLs (P1630) are slow to propagate to the website.
Apr 5 2017, 2:14 PM · Wikidata

Apr 4 2017

Jheald created T162161: gadget quickly make Wikidata statements more narrow or more broad .
Apr 4 2017, 3:52 PM · Wikimedia-Hackathon-2017, Wikidata-Gadgets, Wikidata
Jheald added a comment to T161259: moving/copying statements to other items.

+1 on the need for this.

Apr 4 2017, 3:36 PM · patch-welcome, Wikidata-Gadgets, MediaWiki-extensions-WikibaseRepository, MediaWiki-extensions-WikibaseView, Wikidata

Apr 3 2017

Jheald added a comment to T161543: Enable geoshape datatype on Wikidata.

To make this really useful, it would be valuable for a WDQS query to be able to display such shapes in the map view of query results.

Apr 3 2017, 4:37 PM · Patch-For-Review, Wikidata-Former-Sprint-Board, Wikidata, MediaWiki-extensions-WikibaseRepository

Mar 24 2017

Jheald added a comment to T157811: Wikidata reference URIs have become too many to search with WDQS SPARQL.

So you're saying, in effect, I should think of the strings being stored as a great big hash table rather than a B-tree, so there's nothing there that can help even STRSTARTS. And of course I know very little about the internals of BlazeGraph, whereas you've actually written modules for it. But I did think BlazeGraph uses B+ trees, which do specifically facilitate rapid in-order traversal and retrieval. But perhaps only to retrieve hashes, not strings?

Mar 24 2017, 11:15 PM · Wikidata, Discovery, Wikidata-Query-Service
Jheald added a comment to T161342: Missing updates due to recentchanges backfilling.

Thanks for your speedy diagnosis. I've gone through and reverted and then un-reverted the ten edits by hand, so they are now fine.

Mar 24 2017, 10:47 PM · Discovery-Wikidata-Query-Service-Sprint, Patch-For-Review, Discovery, Wikidata, Wikidata-Query-Service
Jheald added a comment to T161342: Missing updates due to recentchanges backfilling.

Ouch. That sounds quite nasty. The only thing I can think of from the user side that was perhaps slightly different about this set of edits was they were made with QuickStatements while I already had a different QuickStatements run open and going in another window (a big batch of 10,000 corrections in capitalization of item labels, which took about two and a half hours to run, all of which went through fine).

Mar 24 2017, 10:11 PM · Discovery-Wikidata-Query-Service-Sprint, Patch-For-Review, Discovery, Wikidata, Wikidata-Query-Service
Jheald created T161342: Missing updates due to recentchanges backfilling.
Mar 24 2017, 9:08 PM · Discovery-Wikidata-Query-Service-Sprint, Patch-For-Review, Discovery, Wikidata, Wikidata-Query-Service

Mar 13 2017

Jheald added a comment to T159160: Take account of date precision when displaying dates in WDQS GUI.

Hi Smalyshev, thanks for the comment; but if I can come back on your two objections:

Mar 13 2017, 11:18 PM · Wikidata-Query-Service, Discovery, Wikidata
Jheald added a comment to T160335: Provide way to cast variables to type geo:wktLiteral in WDQS queries.

Perfect. I would never ever have found that.

Mar 13 2017, 10:04 PM · Discovery, Wikidata, Wikidata-Query-Service
Jheald updated the task description for T160335: Provide way to cast variables to type geo:wktLiteral in WDQS queries.
Mar 13 2017, 12:29 PM · Discovery, Wikidata, Wikidata-Query-Service
Jheald added a comment to T160335: Provide way to cast variables to type geo:wktLiteral in WDQS queries.

Another case where it could be useful to be able to cast calculated co-ordinates back to a geo:wktLiteral would be to allow AVG() co-ordinates to be calculated and plotted, in cases where SAMPLE() is not sufficient.

Mar 13 2017, 12:21 PM · Discovery, Wikidata, Wikidata-Query-Service
Jheald added a comment to T160335: Provide way to cast variables to type geo:wktLiteral in WDQS queries.

Trying to get round this, by just plotting the values in a scatterplot, without a map, also failed -- though that's likely to be an issue with the scatterplot routine. (Ticket T160325 opened).

Mar 13 2017, 12:20 PM · Discovery, Wikidata, Wikidata-Query-Service
Jheald added a comment to T160335: Provide way to cast variables to type geo:wktLiteral in WDQS queries.

Example case:

Mar 13 2017, 12:16 PM · Discovery, Wikidata, Wikidata-Query-Service
Jheald created T160335: Provide way to cast variables to type geo:wktLiteral in WDQS queries.
Mar 13 2017, 12:08 PM · Discovery, Wikidata, Wikidata-Query-Service
Jheald added a comment to T160325: [Bug] WDQS scatterplot behaves strangely when third column is a COUNT().
Mar 13 2017, 11:17 AM · Wikidata Query UI, Wikidata, Discovery
Jheald added a comment to T159160: Take account of date precision when displaying dates in WDQS GUI.

As one possible hack that could be a way forward on this, I see that the Blazegraph GeoSpatial extension (description on BlazeGraph wiki) allows custom compound data-types to be defined -- which do not necessarily need to include a geospatial element.

Mar 13 2017, 11:09 AM · Wikidata-Query-Service, Discovery, Wikidata
Jheald added a comment to T160325: [Bug] WDQS scatterplot behaves strangely when third column is a COUNT().

As an aside, what I really wanted to do was to plot the values on a map.

Mar 13 2017, 10:41 AM · Wikidata Query UI, Wikidata, Discovery
Jheald added a comment to T160325: [Bug] WDQS scatterplot behaves strangely when third column is a COUNT().

Indeed, I still get the same behaviour even if I dispense with the third column entirely, and SELECT just the first two (query) -- so the issue may not involve the counts at all.

Mar 13 2017, 10:16 AM · Wikidata Query UI, Wikidata, Discovery
Jheald added a comment to T160325: [Bug] WDQS scatterplot behaves strangely when third column is a COUNT().

Example query (view in query editor):

Mar 13 2017, 10:11 AM · Wikidata Query UI, Wikidata, Discovery
Jheald created T160325: [Bug] WDQS scatterplot behaves strangely when third column is a COUNT().
Mar 13 2017, 10:01 AM · Wikidata Query UI, Wikidata, Discovery

Mar 1 2017

Jheald added a comment to T157993: Making WDQS onscreen output more Commons friendly.

Thanks for this Jonas, but given there is already the nice viewer on the page (which I didn't know about when I wrote the bug, because until then I'd only right-clicked on it), perhaps on consideration a better link is just the simple Commons file page, ie 'https://commons.wikimedia.org/wiki/File:{FILENAME}'

Mar 1 2017, 2:56 PM · Patch-For-Review, SDC General, Wikidata, Discovery, Wikidata-Query-Service

Feb 28 2017

Jheald added a comment to T157182: Duplicate language codes in labeling service cause unexpected result.

+1 on this.

Feb 28 2017, 5:15 PM · Patch-For-Review, Discovery-Wikidata-Query-Service-Sprint, Discovery, Wikidata, Wikidata-Query-Service

Feb 27 2017

Jheald added a comment to T159160: Take account of date precision when displaying dates in WDQS GUI.

Re: my previous comment, nodes that can store both a string and a URL would appear to be necessary to enable T121274 "Provide an RDF mapping for external identifiers" -- even though there are no such value nodes at the moment.

Feb 27 2017, 10:21 PM · Wikidata-Query-Service, Discovery, Wikidata
Jheald added a comment to T159160: Take account of date precision when displaying dates in WDQS GUI.

So something like p:P569/psv:P569 returns a URI, something like wdv:8f6e57348b9035361151ee05475253ef

Feb 27 2017, 8:29 PM · Wikidata-Query-Service, Discovery, Wikidata
Jheald added a comment to T159160: Take account of date precision when displaying dates in WDQS GUI.

So is there no way to create any kind of compound type that the GUI can interpret appropriately?
-eg date + precision, here
-or url + linktext, on other tickets

Feb 27 2017, 7:13 PM · Wikidata-Query-Service, Discovery, Wikidata
Jheald added a comment to T159160: Take account of date precision when displaying dates in WDQS GUI.

So if instead one wrote a query to return a wikibase:Time,
-eg by using p:P569/psv:P569 instead of wdt:P569
could it be possible for the GUI to pick that up and return an appropriately precisioned time?

Feb 27 2017, 6:46 PM · Wikidata-Query-Service, Discovery, Wikidata
Jheald added a comment to T157993: Making WDQS onscreen output more Commons friendly.

It would also be useful for the GUI to show Wikipedia sitelinks as links rather than full URLs.

Feb 27 2017, 4:47 PM · Patch-For-Review, SDC General, Wikidata, Discovery, Wikidata-Query-Service
Jheald created T159160: Take account of date precision when displaying dates in WDQS GUI.
Feb 27 2017, 4:37 PM · Wikidata-Query-Service, Discovery, Wikidata

Feb 24 2017

Jheald added a comment to T158955: Add a SPARQL layer around existing live SQL databases.

and T148245 "Explore making WDQS access mediawiki API"

Feb 24 2017, 1:38 PM · Discovery, Wikidata, Wikidata-Query-Service
Jheald added a comment to T158955: Add a SPARQL layer around existing live SQL databases.

See also T157676 "Provide access to category information from WDQS SPARQL"

Feb 24 2017, 12:25 PM · Discovery, Wikidata, Wikidata-Query-Service
Jheald added projects to T158955: Add a SPARQL layer around existing live SQL databases: Wikidata-Query-Service, Wikidata.
Feb 24 2017, 12:24 PM · Discovery, Wikidata, Wikidata-Query-Service

Feb 22 2017

Jheald added a comment to T158648: WDQS: Strange query behaviour with curly brackets.

You're right. I see that now.

Feb 22 2017, 10:40 PM · Discovery, Wikidata, Wikidata-Query-Service

Feb 21 2017

Jheald added a comment to T158648: WDQS: Strange query behaviour with curly brackets.

Presumably what's happening here is that BlazeGraph thinks it can execute a bracketed block { ... } as a self-standing sub-query, independent of what has gone before.

Feb 21 2017, 4:32 PM · Discovery, Wikidata, Wikidata-Query-Service
Jheald added a comment to T158648: WDQS: Strange query behaviour with curly brackets.

And this query can take 20 seconds or even crash:

SELECT ?number  WHERE {
       VALUES ?number { 1 2 3 4 } .
       { FILTER ( ?number IN (1 , 2 ))  }
}
Feb 21 2017, 2:37 PM · Discovery, Wikidata, Wikidata-Query-Service
Jheald created T158648: WDQS: Strange query behaviour with curly brackets.
Feb 21 2017, 2:31 PM · Discovery, Wikidata, Wikidata-Query-Service

Feb 15 2017

Jheald added a comment to T157993: Making WDQS onscreen output more Commons friendly.

With regard to external identifiers and to the P:373 Commons category values, it strikes me that what we really need in the triplestore is a special datatype -- in a similar way to the way we have a special datatype for Commons media.

Feb 15 2017, 12:05 AM · Patch-For-Review, SDC General, Wikidata, Discovery, Wikidata-Query-Service

Feb 14 2017

Jheald added a comment to T157993: Making WDQS onscreen output more Commons friendly.

The gallery view is nice!! I don't know how I missed it - I thought I had tried it, and it just went to the same place as the file link.

Feb 14 2017, 11:44 PM · Patch-For-Review, SDC General, Wikidata, Discovery, Wikidata-Query-Service
Jheald added a comment to T157993: Making WDQS onscreen output more Commons friendly.

The other (simplest) approach would just be to link to the Commons file page,

Feb 14 2017, 10:27 PM · Patch-For-Review, SDC General, Wikidata, Discovery, Wikidata-Query-Service
Jheald added a comment to T157993: Making WDQS onscreen output more Commons friendly.

The standard URLs for the MediaViewer appear to be the wiki page it was launched from, then #/media/ and then the name of the file to display, so

Feb 14 2017, 10:17 PM · Patch-For-Review, SDC General, Wikidata, Discovery, Wikidata-Query-Service
Jheald added a comment to T157811: Wikidata reference URIs have become too many to search with WDQS SPARQL.

Hi Smalyshev, thanks for taking the time to get back to me.

Feb 14 2017, 12:07 PM · Wikidata, Discovery, Wikidata-Query-Service

Feb 13 2017

Jheald created T157993: Making WDQS onscreen output more Commons friendly.
Feb 13 2017, 7:09 PM · Patch-For-Review, SDC General, Wikidata, Discovery, Wikidata-Query-Service
Jheald added a comment to T89552: Implement International Image Interoperability Framework (IIIF) prototype service on Wikimedia labs.

If we can get the IIIF endpoint up and running again (or/and create an IIIF image-serving functionality more centrally to the main MediaWiki code), something that might be good would be the possibility for a user to download an IIIF manifest pretty much whenever the MediaViewer is used (maybe even specify the carousel of images for MediaViewer together with its metadata as an IIIF manifest).

Feb 13 2017, 5:34 PM · SDC General, Wikidata, Possible-Tech-Projects, Wikimedia-General-or-Unknown, Multimedia

Feb 12 2017

Jheald added a comment to T157811: Wikidata reference URIs have become too many to search with WDQS SPARQL.

For comparison, in September 2015 there were 376,524 references using P:854, and a query to search them could complete in 3.7 seconds -- it was used as an example on the query optimisation page. Such a query now times out.

Feb 12 2017, 10:17 AM · Wikidata, Discovery, Wikidata-Query-Service

Feb 11 2017

Jheald added a comment to T116298: SPARQL endpoint should gracefully handle cycles and loops in transitive properties.

Some further interesting examples in this thread on Project Chat of searches of this form that work and others that don't.

Feb 11 2017, 8:24 PM · Discovery, Wikidata-Query-Service, Wikidata

Feb 10 2017

Jheald added a comment to T157811: Wikidata reference URIs have become too many to search with WDQS SPARQL.

For completeness, the P:854 can also be used as a qualifier, principally on property P1343 "described by source", though the number of uses is much much smaller.

Feb 10 2017, 5:00 PM · Wikidata, Discovery, Wikidata-Query-Service
Jheald added a comment to T157811: Wikidata reference URIs have become too many to search with WDQS SPARQL.

Some queries:

Feb 10 2017, 4:41 PM · Wikidata, Discovery, Wikidata-Query-Service
Jheald created T157811: Wikidata reference URIs have become too many to search with WDQS SPARQL.
Feb 10 2017, 4:18 PM · Wikidata, Discovery, Wikidata-Query-Service
Jheald added a comment to T157798: Provide access to image sizes from WDQS SPARQL.

(Got the diff wrong, but the next paragraph shows why Alexmar983 would find this useful).

Feb 10 2017, 1:19 PM · Discovery, SDC General, Wikidata, Wikidata-Query-Service
Jheald created T157798: Provide access to image sizes from WDQS SPARQL.
Feb 10 2017, 1:14 PM · Discovery, SDC General, Wikidata, Wikidata-Query-Service

Feb 9 2017

Jheald created T157676: Provide access to category information from WDQS SPARQL.
Feb 9 2017, 12:37 PM · Wikidata, Wikidata-Query-Service, Discovery

Feb 8 2017

Jheald added a comment to T89552: Implement International Image Interoperability Framework (IIIF) prototype service on Wikimedia labs.

Trying to copy-paste the image links for some of the broken detail images on your
Virgin amongst the Virgins page

Feb 8 2017, 11:10 PM · SDC General, Wikidata, Possible-Tech-Projects, Wikimedia-General-or-Unknown, Multimedia

Feb 7 2017

Jheald added a comment to T89552: Implement International Image Interoperability Framework (IIIF) prototype service on Wikimedia labs.

Hi Shonagon

Feb 7 2017, 6:06 PM · SDC General, Wikidata, Possible-Tech-Projects, Wikimedia-General-or-Unknown, Multimedia

Nov 8 2016

Tarrow awarded T120323: Outdated labels sometimes being shown for the objects of properties on Wikidata pages a Cookie token.
Nov 8 2016, 12:07 PM · Wikidata

Apr 10 2016

matej_suchanek awarded T120198: More efficient SPARQL queries for sitelinks a Love token.
Apr 10 2016, 7:28 PM · Discovery, Wikidata, Wikidata-Query-Service

Mar 1 2016

Jheald added a comment to T94989: [Story] Other projects sidebar should have ability to include commons category links.

A couple of wrinkles to examine, reported at Commons Village Pump: https://commons.wikimedia.org/wiki/Commons:Village_pump#WP_sidebars_now_link_to_Commons_categories

Mar 1 2016, 7:17 PM · Wikidata-Sprint-2016-01-19, Story, Commons, MediaWiki-extensions-WikibaseClient, Wikidata

Jan 20 2016

Jheald added a comment to T123565: [EPIC] Support geo-coordinate search for WDQS.

So queries won't have to be written like this any more ? :-)

Jan 20 2016, 7:11 PM · Epic, Discovery, Wikidata, Wikidata-Query-Service

Dec 21 2015

Jheald added a comment to T103102: [Story] Take in other projects sidebar out of beta features.

It's good to see this going forwards at last.

Dec 21 2015, 9:48 PM · Wikidata-Sprint-2016-02-16, Wikidata-Sprint-2016-02-02, Wikidata-Sprint-2016-01-19, Wikimedia-Interwiki-links, Wikimedia-Site-requests, User-notice, Story, BetaFeatures, Wikidata

Dec 15 2015

Jheald added a comment to T89552: Implement International Image Interoperability Framework (IIIF) prototype service on Wikimedia labs.

Daniel, thank you *so* much for fixing this -- so now it should be all systems go!

Dec 15 2015, 10:30 PM · SDC General, Wikidata, Possible-Tech-Projects, Wikimedia-General-or-Unknown, Multimedia
Jheald added a comment to T89552: Implement International Image Interoperability Framework (IIIF) prototype service on Wikimedia labs.

It seems that the links above (the ones without the diacritics) work if the image has first been viewed in zoomviewer, which presumably is when the tiles get made and cached.

Dec 15 2015, 8:49 PM · SDC General, Wikidata, Possible-Tech-Projects, Wikimedia-General-or-Unknown, Multimedia

Dec 12 2015

Jheald added a comment to T89552: Implement International Image Interoperability Framework (IIIF) prototype service on Wikimedia labs.

I'm not sure what I'm doing wrong, but I don't seem to be getting success for any of these:

Dec 12 2015, 9:01 AM · SDC General, Wikidata, Possible-Tech-Projects, Wikimedia-General-or-Unknown, Multimedia
Jheald added a comment to T89552: Implement International Image Interoperability Framework (IIIF) prototype service on Wikimedia labs.

That's fantastic! I am so excited, this is going to open up so much!

Dec 12 2015, 8:26 AM · SDC General, Wikidata, Possible-Tech-Projects, Wikimedia-General-or-Unknown, Multimedia