Growth/Personalized first day/Structured tasks/Add an image

This page describes work on an "add an image" structured task, which is a type of structured task that the Growth team will offer through the newcomer homepage. The Android team is also thinking about a similar task for the Wikipedia Android app using the same underlying components. Discussion and updates on this page is relevant to the work of both teams. This page contains major assets, designs, open questions, and decisions. Most incremental updates on progress will be posted on the general 1>Special:MyLanguage/Growth/Growth team updates|Growth team updates page, with some large or detailed updates posted here.

Current status

 * 2020-06-22: initial thinking about ideas to create a simple algorithm to recommend images.
 * 2020-09-08: evaluated a first attempt at a matching algorithm in English, French, Arabic, Korean, Czech, Vietnamese.
 * 2020-09-30: evaluated a second attempt at a matching algorithm in English, French, Arabic, Korean, Czech, Vietnamese.
 * 2020-10-26: internal engineering discussion of possible feasibility for image recommendation service.

Summary
Structured tasks are meant to break down editing tasks into step-by-step workflows that make sense for newcomers and make sense on mobile devices. The Growth team believes that introducing these new kinds of editing workflows will allow more new people to begin participating on Wikipedia, some of whom will learn to do more substantial edits and get involved with their communities. After discussing the idea of structured tasks with communities, we decided to build the first structured task: "add a link".

Even as we build that first task, we have been thinking about what a next structured task could be, and we think that adding images could be a good fit for newcomers. The idea is that a simple algorithm would recommend images from Commons to be placed on articles that have no images. To start with, it would use only existing connections that can be found in Wikidata, and newcomers would use their judgment to place the image on the article or not.

We know that there are many open questions around how this would work, many potential reasons that it might not go right. That's why we are hoping to hear from lots of community members and have an ongoing discussion as we decide how to proceed.

Why images?
Looking for substantial contributions

When we first discussed structured tasks with community members, many pointed out that adding wikilinks is not a particularly high-value type of edit. Community members brought up ideas for how newcomers could make more substantial contributions. One idea is images. Wikimedia Commons contains 65 million images, but in many Wikipedias, over 50% of articles have no images. We believe that many images from Commons can make Wikipedia substantially more illustrated.

Interest from newcomers

We know that many newcomers are interested in adding images to Wikipedia. "To add an image" is a common response newcomers give on the welcome survey for why they are creating their account. We also see that one of the most frequent help panel questions is about how to add images, true across all the wikis we work with. Though most of these newcomers are probably bringing their own image that they want to add, this hints at how images can be engaging and exciting. That makes sense, given the image-heavy elements of the other platforms that newcomers participate in -- things like Instagram and Facebook.Difficulty of working with images The many help panel questions about images reflects that the process to add them to articles is too difficult. Newcomers have to understand the difference between Wikipedia and Commons, rules around copyright, and the technical parts of inserting and captioning the image in the right place. Finding an image in Commons for an unillustrated article requires even more skills, such as knowledge of Wikidata and categories.

Success of "Wikipedia Pages Wanting Photos" campaign

The Wikipedia Pages Wanting Photos campaign (WPWP) was a surprising success: 600 users added images to 85,000 pages. They did this with the assistance of a couple of community tools that identified pages that have no images, and which suggest possible images through Wikidata. This gives us confidence that users can be enthusiastic about adding images and that they can be assisted by tools.

Taking this all together

Thinking about all this information together, we think that it could be possible to build an "add an image" structured task that is both fun for newcomers and productive for Wikipedias.

Algorithm
Our ability to make a structured task for adding images depends on whether we can create an algorithm that generates sufficiently good recommendations. We definitely do not want to urge newcomers to add the wrong images to articles, which would cause work for patrollers to clean up after them. Therefore, trying to see if we could make a good algorithm is one of the first things we've worked on.

Logic

We have been working with the Wikimedia Research team, and so far we have been testing an algorithm that prioritizes accuracy and human judgment. Rather than using any computer vision, which can generate unexpected results, it simply aggregates existing information in Wikidata, drawing on connections made by experienced contributors. These are the three main ways that it suggests matches to unillustrated articles:


 * Look at the Wikidata item for the article. If it has an image (P18), choose that image.
 * Look at the Wikidata item for the article. If it has a Commons category associated (P373), choose an image from the category.
 * Look at the articles about the same topic in other Wikipedias. Choose a lead image from those articles.

The algorithm also includes logic to do things like exclude images that are likely icons or that are present on an article as part of a navbox.

Performance

As of December 2020, we've gone through two rounds of testing the algorithm, each time looking at matches to articles in six languages: English, French, Arabic, Vietnamese, Czech, and Korean. The evaluations were done by native speakers in each languages. Looking at 50 matches in each language, we went through and classified them into these groups: A question that runs throughout the work on an algorithm like this is: how accurate does it need to be? If 75% of matches are good is that enough? Does it need to be 90% accurate? Or could it be as low as 50% accurate? This depends on how good the judgment is of the newcomers using it, and how much patience they have for weak matches. We'll learn more about this when we user test the algorithm with real newcomers.

In the first evaluation, the most important thing is that we found a lot of easy improvements to make to the algorithm, including types of articles and images to exclude. Even without those improvements, about 20-40% of matches were "2s", meaning great matches for the article (depending on the wiki). You can see the full results and notes from the first evaluation here.

For the second evaluation, many improvements were incorporated, and the accuracy increased. Between 50-70% of matches were "2s" (depending on the wiki). But increasing the accuracy can decrease the coverage, i.e. the number of articles for which we can make matches. Using conservative criteria, the algorithm may only be able to suggest tens of thousands of matches in a given wiki, even if that wikis has hundreds of thousands or millions of articles. We believe that that kind of volume would be sufficient to build an initial version of this feature. You can see the full results and notes from the second evaluation here.

We are continuing to make improvements to the algorithm, and in December 2020, we are trying a third evaluation, which you can follow along with here.

Open questions
Images are such an important and visible part of the Wikipedia experience. It is critical that we think hard about how a feature enabling the easy adding of images would work, what the potential pitfalls might be, and what the implications would be for community members. To that end, we have many open questions, and we want to hear of more that community members can bring up.


 * Will our algorithm be sufficiently accurate such that plenty of good matches are provided?
 * What metadata from Commons and the unillustrated article do newcomers need in order to make a decision about whether to add the image?
 * Will newcomers who don't read English be equally able to make good decisions, given that much of Commons metadata is in English?
 * Will newcomers have sufficiently good judgment when looking at recommendations?
 * Will newcomers be able to write good captions to go along with images that they place in the articles?
 * How exactly should we determine which articles have no images?
 * Where in the unillustrated article should the image be placed? Is it sufficient to put it at the top of the article?
 * How can we be mindful of potential bias in the recommendations, i.e. perhaps the algorithm will make many more matches for topics in Europe and North America.
 * Will such a workflow be a vector for vandalism? How can this be prevented?