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How AI can help us harness our 'collective intelligence'

Collaborating usually makes our work better – but keeping a team on task is not easy. Now, researchers are finding that machines can bring out the best in group work.

It’s long been recognized that when groups of people come together to solve a problem they can become more than the sum of their parts. The ‘wisdom of the crowd’ has been acknowledged as far back as Ancient Greece, when Aristotle noted that many unremarkable men often make better collective judgments than great individuals.


Multiple people weighing in on a problem might intuitively seem to lead to a better outcome, but as any manager will tell you, keeping a large team on task is not easy. However, recent advances in artificial intelligence (AI) could make harnessing this collective wisdom much easier, making us more effective at our jobs and better able to solve pressing social challenges.

“We know that the future of work is all about collaboration and problem solving,” says Peter Baeck, who leads the Centre for Collective Intelligence Design at Nesta, a UK charity that funds and promotes research into groundbreaking ideas. “One of the most obvious opportunities is using AI to better create connections within often quite chaotic messy networks of people who are working on a common challenge.”


The biggest factor affecting how collectively intelligent a group can be is the degree of coordination among its members – Anita Woolley

The biggest factor affecting how collectively intelligent a group can be is the degree of coordination among its members, says Anita Woolley, a leading expert in organisational behaviour at Carnegie Mellon University. Smart tools can be a boon in this area, which is why Woolley is working with colleagues to develop AI-powered coaches that can track group members and provide prompts to help them work better as a team.

“The roles these [AI] tools can play are virtually endless,” says Woolley. “Fostering communication among the different components, reminding people of stuff they might have forgotten, being a repository of information, helping the group coordinate its decision making.”



Hive minds

There are already promising examples of how AI can help us better pool our unique capabilities. San Francisco start-up Unanimous AI has built an online platform that helps guide group decisions. They’ve looked to an unlikely place to guide their AI: the way honeybees make collective decisions.

“We went back to basics and said, ‘How does nature amplify the intelligence of groups?’,” says CEO Louis Rosenberg. “What nature does is form real-time systems, where the groups are interacting all at once together with feedback loops. So, they're pushing and pulling on each other as a system, and converging on the best possible combination of their knowledge, wisdom, insight and intuition.”


What nature does is form real-time systems, where the groups are interacting all at once together with feedback loops – Louis Rosenberg

Their Swarm AI platform presents groups with a question and places potential answers in different corners of their screen. Users control a virtual magnet with their mouse and engage in a tug of war to drag an ice hockey puck to the answer they think is correct. The system’s algorithm analyses how each user interacts with the puck – for instance, how much conviction they drag it with or how quickly they waver when they’re in the minority – and  uses this information to determine where the puck moves. That creates feedback loops in which each user is influenced by the choice and conviction of the others allowing the puck to end up at the answer best reflecting the collective wisdom of the group.


Several academic papers and high-profile clients who use the product back up the effectiveness of the Swarm AI platform. In one recent study, a group of traders were asked to forecast the weekly movement of several key stock market indices by trying to drag the puck to one of four answers — up or down by more than 4%, or up and down by less than 4%. With the tool, they boosted their accuracy by 36%.


Team building

But designing technology that can mesh well with human teams can be surprisingly difficult, says Woolley, who is working with colleagues to develop AI-powered coaches that can track group members and provide prompts to help them work better as a team.

In one study, her team tried out three different tools designed to maximise collective intelligence: one that gave real-time feedback on team members’ effort, another that helped divide and assign tasks and a chatbot that helped the group talk about their skills and expertise.


It's easier to be harmful or to create things that annoy people than it is to create things that are honestly helpful – Anita Woolley

The first tool appeared to demotivate people, while the second ended up distracting teams with unnecessary planning. Only the final tool helped, by ensuring the best-suited people worked on each task. “What we keep discovering is that it's easier to be harmful or to create things that annoy people than it is to create things that are honestly helpful,” says Woolley.


It is still really difficult to build AI with social intelligence, she says, because machines continue to struggle to pick up the nuanced social cues that guide so much of group dynamics. It’s also evident from Woolley’s research that these kinds of systems only work if humans truly trust AI decision making, and if users are only receiving gentle nudges from the system. “As soon as it's heavy handed, people are looking for ways to disable it,” says Woolley.


Humanising AI

Our combined wisdom can also help give a more human element to AI technology, and better guide its decisions.

At London-based start-up Factmata, which has built an AI moderation system, the company has enlisted more than 2,000 experts, including journalists and researchers, to analyse online content for things including bias, credibility or hate speech. They then used this analysis to train a natural-language processing system to automatically scan web pages for problematic content.

“Once you have that trained algorithm it can scale to those millions of pieces of content across the internet,” says CEO Dhruv Ghulati. “You're able to scale up the critical assessment of those experts.”

While AI is often trained on data labelled by experts in a one-off process, Factmata’s experts continually refresh the training data to make sure the algorithms can keep up with the ever-shifting political and media landscape. They also let members of the public give feedback on the AI’s output, which Ghulati says ensures it remains relevant and free of bias itself.

Entwining ourselves and our decisions every more tightly with AI is not without risks, however. The synergy between AI and collective intelligence works best the more information we give the machine, says Woolley, which involves difficult choices about how much privacy we’re happy to surrender.


We can have some very smart individuals working on different components in isolation, but if we don't have coordination it's really hard to make any headway – Anita Woolley

“We can have some very smart individuals working on different components in isolation, but if we don't have coordination it's really hard to make any headway,” says Woolley. “I think it's going to be critical to helping these different components actually coordinate in the ways needed to address the biggest collective action problems.”

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