Wiki survey

A single open-ended prompt written by the creator of the survey determines the topic the questions should be on.

The first known implementation of a wiki survey was in 2010,[4] and they have been used since then for a variety of purposes such as facilitating deliberative democracy, crowdsourcing opinions from experts and figuring out common beliefs on a given topic.

They can be seen in a more general sense as a tool for establishing consensus in large volumes of people.

Wiki surveys mainly differ from consensus-building in comment sections by using a heuristic which determines the order of questions for each participant that aims to maximize consensus, not allowing replies to questions and providing visualization tools to better understand consensus.

This is done by changing the ordering of questions based on the voting behavior of previous participants so as to maximize consensus.

The heuristic determining the ordering of questions highly values showing the comments that have been voted on the least.

Although being greedy typically has a negative connotation, it is used in a positive manner for wiki surveys.

The 'greediness' characteristic of wiki surveys is thought to also be advantageous, as it allows for gathering more data per participant.

A view of the 'opinion space' visualization tool for a Polis wiki survey. Each user can see how similar their voting behavior is to other voters based on their closeness to one another within the two-dimensional space.
A view of the user interface for seeing in real-time the results of an All Our Ideas wiki survey. The top 10 ranked items are shown in this view of the interface.
A view of the user interface for casting votes on and submitting items to an All Our Ideas wiki survey. After casting a vote, a heuristic determines the next item that will be shown. The heuristic favors showing items with relatively low numbers of votes.