Dario / Erik, reading your last few thoughts, maybe I mis-phrased the task that's tracking this project: https://phabricator.wikimedia.org/T109745. Edits are welcome, and I'm sure this conversation will evolve.
So this is how the analytics team wants to support this. We've prioritized and will task and execute the immediate problem: https://phabricator.wikimedia.org/T109383 And we'll track the migration to a more proactive pageview definition in this project: https://phabricator.wikimedia.org/T109745. Codename pika [1] because it's adorable [2]
[1] https://en.wikipedia.org/wiki/Pika [2] for those not familiar, the analytics team is into tagging so we tag all our projects and tasks with four letter animal names (see first column of our main execution board: https://phabricator.wikimedia.org/tag/analytics-kanban/)
On Wed, Aug 19, 2015 at 3:40 PM, Erik Zachte ezachte@wikimedia.org wrote:
+1 on baseline inflation
We will have a hard time to connect historic and future pageview counts anyway, now that we migrate to new infrastructure (mostly because historic counts didn't exluded crawlers).
But at least the concepts of 'page' and 'view' haven't changed much in all these years.
Erik
*From:* analytics-bounces@lists.wikimedia.org [mailto: analytics-bounces@lists.wikimedia.org] *On Behalf Of *Dario Taraborelli *Sent:* Wednesday, August 19, 2015 21:23 *To:* A mailing list for the Analytics Team at WMF and everybody who has an interest in Wikipedia and analytics. *Subject:* Re: [Analytics] Pageviews definition + measurement for apps adding link previews + using RESTBase
On Aug 18, 2015, at 6:32 PM, Kevin Leduc kevin@wikimedia.org wrote:
We briefly considered counting views of Hover Cards as Pageviews, but it was quickly dismissed. First, the feature is not widely used enough to justify Changing the pageview definition.
I second that, these are “impressions” and they should be measured separately. I would be very worried about inflating our baseline PV numbers with all sort of features revealing snippets of content.
I’m still open to counting previews as pageviews, but I think the Readership team and their product managers need to weigh in heavily as Pageviews is a key metric for them.
Finally, counting Pageviews served through RESTBase sounds like a new project and I'd like to hear more about the effort needed from the analytics engineers.
On Tue, Aug 18, 2015 at 4:58 PM, Oliver Keyes okeyes@wikimedia.org wrote:
On 18 August 2015 at 19:11, Bernd Sitzmann bernd@wikimedia.org wrote:
This discussion is about needed updates of the definition and Analytics implementation for mobile apps page view metrics. There is also an associated Phab task[4]. Please add the proper Analytics project there.
Background / Changes
As you probably remember, the Android app splits a page view into two requests: one for the lead section and metadata, plus another one for the remainder.
The mobile apps are going to change the way they load pages in two
different
ways:
We'll add a link preview when someone clicks on a link from a page. We're planning on switching over the using RESTBase for loading pages and also the link preview (initially just the Android beta, ater more)
Woah woah woah woah woah. By RESTBase do you mean Gabriel's RESTful service API?
Last time I checked that wasn't even consumed by HDFS. Is it now being consumed by HDFS?
More importantly the actual URLs are going to look /totally/ different. If we do not include RESTBase requests, we will miss the apps. If we /do/ include RESTBase requests we will not only have to rewrite the pageview definition for the apps to recognise the new URL scheme, we will also potentially have to rewrite every /other/ bit of the definition to /not/ incorporate those requests.
(I use "we" in a collective sense. This isn't my baby any more, although if Joseph et al want help with the refactor here I'm happy to spend my volunteer time on it).
But basically every other bit of your email is important but now secondary: this is a potentially massive change, all on its own, even without the link preview, even if the substance of the requests going to RESTBase were identical.
This will have implications for the pageviews definition and how we count user engagement.
The big question is
Should we count link previews as a page view since it's an indication of user engagement? Or should there be a separate metric for link previews?
Counting page views
IIRC we currently count action=mobileview§ions=0 query parameters of api.php as a page view. When we publish link previews for all Android app users then we would either want to count also the calls to action=query&prop=extracts as a page view or add them to another metric.
Once the apps use RESTBase the HTTPS requests will be very different:
Page view: Instead of action=mobileview§ions=0 the app would call the RESTBase endpoint for lead request[1] instead of the PHP API mentioned above. Then it would call [2]. Link preview: Instead of action=query&prop=extracts it would call the
lead
request[1], too, since there is a lot of overlap. At least that our
current
plan. The advantage of that is that the client doesn't need to execute
the
lead request a second time if the user clicks on the link preview (--
either
through caching or app logic.)
So, in the RESTBase case we either want to count the mobile-html-sections-lead requests or the mobile-html-sections-remaining requests depending on what our definition for page views actually is. We could also add a query parameter or extra HTTP header to one of the mobile-html-sections-lead requests if we need to distinguish between previews and page views.
Both the current PHP API and the RESTBase based metrics would need to be compatible and be collected in parallel since we cannot control when
users
update their apps.
[1]
https://en.wikipedia.org/api/rest_v1/page/mobile-html-sections-lead/Dilbert
[2]
https://en.wikipedia.org/api/rest_v1/page/mobile-html-sections-remaining/Dil...
[3]
https://www.mediawiki.org/wiki/Wikimedia_Apps/Team/RESTBase_services_for_app...
[4] https://phabricator.wikimedia.org/T109383
Cheers,
Bernd
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