social media

Design and Implementation of Behavioral Informatics Interventions

Curated on June 8, 2017August 3, 2018 by Stefaan Verhulst

Chapter by Liliana Laranjo, Annie Lau and Enrico Coiera in Cognitive Informatics in Health and Biomedicine: “The growing burden of chronic disease is drawing unprecedented attention to the importance of optimizing lifestyle behaviors. Interventions to promote behavior change seem promising, but their full potential can be missed when they are not easily disseminated or accessible to a larger audience. The ability of technology to address these issues, as well as to facilitate the tailoring of interventions, has led to the growing popularity of the field of behavioral informatics (BI).

Behavioral informatics interventions are designed to support patients and healthy consumers in modifying behaviors to improve health, with the help of computers, the Internet, mobile phones, wireless devices, or social media, among other technologies. To date, BI interventions have been applied in several health domains, from the promotion of healthy lifestyle behaviors to mental health and chronic disease self-management.

The effectiveness and impact of BI interventions are largely dependent on their meaningful design, development, evaluation, and implementation. Key elements for success include: performing a comprehensive observation and framing of the particular behavioral challenge within context; recognizing the relevant behavior change theories, models and techniques; having a deep understanding of user characteristics and needs; involving users throughout design and development; and refining the design through user-centred evaluation.

Due to the rapid pace of technology development, the evaluation of interventions and translation of research to practice are met with particular challenges. Innovative methodologies and implementation strategies are increasingly required to bring to fruition the potential of BI interventions in delivering cost-effective, personalized interventions, with broad scalability….(More)”.

Facebook Features Connect Lawmakers With Constituents

Curated on June 7, 2017August 3, 2018 by Stefaan Verhulst

Griffin Connolly at RollCall: “Facebook users now have the option to pin “constituent badges” to their profiles, letting friends — and members of Congress — know which district they live in. And users can now search for articles, links, and posts that other residents in their districts engage with most frequently.

“When we think about civic engagement, we think about building communities of people,” said Erin Egan, Facebook’s vice president of U.S. public policy. “And this is about making sure that people engage with government.”

The new features can also help identify the issues that voters care about most. That could be a valuable tool for lawmakers — and their opponents — during election season.

“I’ve always been fascinated by how the internet helps citizens have a voice like never before,” Samidh Chakrabarti, Facebook’s head of civic engagement, told reporters and congressional staffers at the unveiling Wednesday. “But at the same time, it makes it more complicated for decision-makers to actually make sense of it all.”

Facebook’s new technology can help, he said.

The constituent badge unlocks a number of possibilities for lawmakers looking to engage voters more directly.

They can now choose to make their posts available exclusively to voters in their district, which Facebook calls “district targeting.” In the past, policymakers could only post publicly from their pages….

The badge tool also enables lawmakers to host virtual town halls with an exclusive audience of their own constituents via the Facebook Live streaming medium and to tailor their messages to a narrower band of local media sources and citizens.

One unintended consequence of these more private Facebook Live sessions is that reporters who don’t live in a lawmaker’s district may not be able to view it. Facebook users can only provide one address, and that determines their constituent badge. …

A number of tech-savvy lawmakers have led the charge in leveraging new social media features and platforms to promote their image and policies.

In March, two Texas House members, Democrat Beto O’Rourke and Republican Will Hurd, struck out on a multiday “bipartisan road trip” from the Lone Star State back to Washington, using Facebook Live and the livestreaming app Periscope to update viewers and answer questions on policy.

Democrat Rick Nolan and Republican Jason Lewis copied that approach in April when the two Minnesota congressmen traveled back to their home state.

Louisiana Republican Rep. Garret Graves, who spoke at the Facebook unveiling on Wednesday, has gone full bore with his use of Facebook Live, hosting town halls every Friday around lunchtime and periodically on evenings throughout the week….(More)”

The Citizen Marketer

Curated on June 7, 2017August 3, 2018 by Stefaan Verhulst

Book by Joel Penney: “From hashtag activism to the flood of political memes on social media, the landscape of political communication is being transformed by the grassroots circulation of opinion on digital platforms and beyond. By exploring how everyday people assist in the promotion of political media messages to persuade their peers and shape the public mind, Joel Penney offers a new framework for understanding the phenomenon of viral political communication: the citizen marketer. Like the citizen consumer, the citizen marketer is guided by the logics of marketing practice, but, rather than being passive, actively circulates persuasive media to advance political interests. Such practices include using protest symbols in social media profile pictures, strategically tweeting links to news articles to raise awareness about select issues, sharing politically-charged internet memes and viral videos, and displaying mass-produced T-shirts, buttons, and bumper stickers that promote a favored electoral candidate or cause. Citizens view their participation in such activities not only in terms of how it may shape or influence outcomes, but as a statement of their own identity. As the book argues, these practices signal an important shift in how political participation is conceptualized and performed in advanced capitalist democratic societies, as they casually inject political ideas into the everyday spaces and places of popular culture.

While marketing is considered a dirty word in certain critical circles — particularly among segments of the left that have identified neoliberal market logics and consumer capitalist structures as a major focus of political struggle — some of these very critics have determined that the most effective way to push back against the forces of neoliberal capitalism is to co-opt its own marketing and advertising techniques to spread counter-hegemonic ideas to the public. Accordingly, this book argues that the citizen marketer approach to political action is much broader than any one ideological constituency or bloc. Rather, it is a means of promoting a wide range of political ideas, including those that are broadly critical of elite uses of marketing in consumer capitalist societies. The book includes an extensive historical treatment of citizen-level political promotion in modern democratic societies, connecting contemporary digital practices to both the 19th century tradition of mass political spectacle as well as more informal, culturally-situated forms of political expression that emerge from postwar countercultures. By investigating the logics and motivations behind the citizen marketer approach, as well as how it has developed in response to key social, cultural, and technological changes, Penney charts the evolution of activism in an age of mediatized politics, promotional culture, and viral circulation….(More)”.

Europol introduce crowdsourcing to catch child abusers

Curated on June 6, 2017August 20, 2018 by Stefaan Verhulst

LeakofNations: “The criminal intelligence branch of the European Union, known as Europol, have started a campaign called #TraceAnObject which uses social media crowdsourcing to detect potentially-identifying objects in material that depicts child abuse….

Investigative crowdsourcing has gained traction in academic and journalistic circles in recent years, but this represents the first case of government bureaus relying on social media people-power to conduct more effective analysis.

Journalists are increasingly relying on a combination of high-end computing to organise terabytes of data and internet cloud hubs that allow a consortium of journalists from around the world to share their analysis of the material. In the Panama Papers scoop the Australian software Nuix was used to analyse, extract, and index documents into an encrypted central hub in which thousands of journalists from 80 countries were able to post their workings and assist others in a forum-type setting. This model was remarkably efficient; over 11.5 million documents, dating back to the 1970’s, were analysed in less than a year.

The website Zooinverse has achieved huge success in creating public participation on academic projects, producing the pioneering game Foldit, where participants play with digital models of proteins. The Oxford University-based organisation has now engaged over 1 million volunteers, and has has significant successes in astronomy, ecology, cell biology, humanities, and climate science.

The most complex investigations still require thousands of hours of straightforward tasks that cannot be computerised. The citizen science website Planet Four studies conditions on Mars, and needs volunteers to compare photographs and detect blotches on Mars’ surface – enabling anyone to feel like Elon Musk, regardless of their educational background.

Child abuse is something that incites anger in most people. Crowdsourcing is an opportunity to take the donkey-work away from slow bureaucratic offices and allow ordinary citizens, many of whom felt powerless to protect children from these vile crimes, to genuinely progress cases that will make children safer.

Zooinverse proves that the public are hungry for this kind of work; the ICIJ project model of a central cloud forum shows that crowdsourcing across international borders allows data to be interpreted more efficiently. Europol’s latest idea could well be a huge success.

Even the most basic object could potentially provide vital clues to the culprit’s identity. The most significant items released so far include a school uniform complete with ID card necktie, and a group of snow-covered lodges….(More) (see also #TraceAnObject).

The Internet Doesn’t Have to Be Bad for Democracy

Curated on June 5, 2017August 3, 2018 by Stefaan Verhulst

Tom Simonite at MIT Technology Review: “Accusations that the Internet and social media sow political division have flown thick and fast since recent contentious elections in the United States, the United Kingdom, and France. Facebook founder and CEO Mark Zuckerberg has even pledged to start working on technology that will turn the energy of online interactions into a more positive force (see “We Need More Alternatives to Facebook”).

Tiny, largely self-funded U.S. startup Pol.is has been working on a similar project longer than Zuckerberg and already has some promising results. The company’s interactive, crowdsourced survey tool can be used to generate maps of public opinion that help citizens, governments, and legislators discover the nuances of agreement and disagreement on contentious issues that exist. In 2016, that information helped the government of Taiwan break a six-year deadlock over how to regulate online alcohol sales, caused by entrenched, opposing views among citizens on what rules should apply.

“It allowed different sides to gradually see that they share the same underlying concern despite superficial disagreements,” says Audrey Tang, Taiwan’s digital minister. The island’s government now routinely sends out Pol.is surveys using Facebook ads, and to special-interest groups. It has also used the system to help thrash out what rules should apply to Airbnb rentals and mobile ride-hailing services such as Uber.

Pol.is’s open-source software is designed to serve up interactive online surveys around a particular issue. People are shown a series of short statements about aspects of a broader issue—for example, “Uber drivers should need the same licenses cab drivers do”—and asked to click to signal that they agree or disagree. People can contribute new statements of their own for others to respond to. The tangle of crisscrossing responses is used to automatically generate charts that map out different clusters of opinion, making it easy to see the points on which people tend to overlap or disagree.

Alternativet, a progressive Danish political party with nine members of parliament, is piloting Pol.is as a way to give its members a more direct role in formulating policy. Jon Skjerning-Rasmussen, a senior process coordinator with the party, says the way Pol.is visualizations are shared with people as they participate in a survey—letting them see how their opinions compare with those of others—helps people engage with the tool….(More).

How Data Mining Facebook Messages Can Reveal Substance Abusers

Curated on June 4, 2017August 3, 2018 by Stefaan Verhulst

Emerging Technology from the arXiv: “…Substance abuse is a serious concern. Around one in 10 Americans are sufferers. Which is why it costs the American economy more than $700 billion a year in lost productivity, crime, and health-care costs. So a better way to identify people suffering from the disorder, and those at risk of succumbing to it, would be hugely useful.

Bickel and co say they have developed just such a technique, which allows them to spot sufferers simply by looking at their social media messages such as Facebook posts. The technique even provides new insights into the way abuse of different substances influences people’s social media messages.

The new technique comes from the analysis of data collected between 2007 and 2012 as part of a project that ran on Facebook called myPersonality. Users who signed up were offered various psychometric tests and given feedback on their scores. Many also agreed to allow the data to be used for research purposes.

One of these tests asked over 13,000 users with an average age of 23 about the substances they used. In particular, it asked how often they used tobacco, alcohol, or other drugs, and assessed each participant’s level of use. The users were then divided into groups according to their level of substance abuse.

This data set is important because it acts as a kind of ground truth, recording the exact level of substance use for each person.

The team next gathered two other Facebook-related data sets. The first was 22 million status updates posted by more than 150,000 Facebook users. The other was even larger: the “like” data associated with 11 million Facebook users.

Finally, the team worked out how these data sets overlapped. They found almost 1,000 users who were in all the data sets, just over 1,000 who were in the substance abuse and status update data sets, and 3,500 who were in the substance abuse and likes data sets.

These users with overlapping data sets provide rich pickings for data miners. If people with substance use disorders have certain unique patterns of behavior, it may be possible to spot these in their Facebook status updates or in their patterns of likes.

So Bickel and co got to work first by text mining most of the Facebook status updates and then data mining most of the likes data set. Any patterns they found, they then tested by looking for people with similar patterns in the remaining data and seeing if they also had the same level of substance use.

The results make for interesting reading. The team says its technique was hugely successful. “Our best models achieved 86% for predicting tobacco use, 81% for alcohol use and 84% for drug use, all of which significantly outperformed existing methods,” say Bickel and co…. (More) (Full Paper: arxiv.org/abs/1705.05633: Social Media-based Substance Use Prediction).

How Twitter Is Being Gamed to Feed Misinformation

Curated on June 4, 2017August 3, 2018 by Stefaan Verhulst

Farhad Manjoo. at the New York Times: “…the biggest problem with Twitter’s place in the news is its role in the production and dissemination of propaganda and misinformation. It keeps pushing conspiracy theories — and because lots of people in the media, not to mention many news consumers, don’t quite understand how it works, the precise mechanism is worth digging into….Here’s how.

The guts of the news business.

One way to think of today’s disinformation ecosystem is to picture it as a kind of gastrointestinal tract…. Twitter often acts as the small bowel of digital news. It’s where political messaging and disinformation get digested, packaged and widely picked up for mass distribution to cable, Facebook and the rest of the world.

This role for Twitter has seemed to grow more intense during (and since) the 2016 campaign. Twitter now functions as a clubhouse for much of the news. It’s where journalists pick up stories, meet sources, promote their work, criticize competitors’ work and workshop takes. In a more subtle way, Twitter has become a place where many journalists unconsciously build and gut-check a worldview — where they develop a sense of what’s important and merits coverage, and what doesn’t.

This makes Twitter a prime target for manipulators: If you can get something big on Twitter, you’re almost guaranteed coverage everywhere….

Twitter is clogged with fake people.

For determined media manipulators, getting something big on Twitter isn’t all that difficult. Unlike Facebook, which requires people to use their real names, Twitter offers users essentially full anonymity, and it makes many of its functions accessible to outside programmers, allowing people to automate their actions on the service.

As a result, numerous cheap and easy-to-use online tools let people quickly create thousands of Twitter bots — accounts that look real, but that are controlled by a puppet master.

Twitter’s design also promotes a slavish devotion to metrics: Every tweet comes with a counter of Likes and Retweets, and users come to internalize these metrics as proxies for real-world popularity….

They may ruin democracy.

…. the more I spoke to experts, the more convinced I became that propaganda bots on Twitter might be a growing and terrifying scourge on democracy. Research suggests that bots are ubiquitous on Twitter. Emilio Ferrara and Alessandro Bessi, researchers at the University of Southern California, found that about a fifth of the election-related conversation on Twitter last year was generated by bots. Most users were blind to them; they treated the bots the same way they treated other users….

in a more pernicious way, bots give us an easy way to doubt everything we see online. In the same way that the rise of “fake news” gives the president cover to label everything “fake news,” the rise of bots might soon allow us to dismiss any online enthusiasm as driven by automation. Anyone you don’t like could be a bot; any highly retweeted post could be puffed up by bots….(More)”.

Could Big Data Help End Hunger in Africa?

Curated on May 31, 2017July 19, 2019 by Stefaan Verhulst

Lenny Ruvaga at VOA News: “Computer algorithms power much of modern life from our Facebook feeds to international stock exchanges. Could they help end malnutrition and hunger in Africa? The International Center for Tropical Agriculture thinks so.

The International Center for Tropical Agriculture has spent the past four years developing the Nutrition Early Warning System, or NEWS.

The goal is to catch the subtle signs of a hunger crisis brewing in Africa as much as a year in advance.

CIAT says the system uses machine learning. As more information is fed into the system, the algorithms will get better at identifying patterns and trends. The system will get smarter.

Information Technology expert Andy Jarvis leads the project.

“The cutting edge side of this is really about bringing in streams of information from multiple sources and making sense of it. … But it is a huge volume of information and what it does, the novelty then, is making sense of that using things like artificial intelligence, machine learning, and condensing it into simple messages,” he said.

Other nutrition surveillance systems exist, like FEWSnet, the Famine Early Warning System Network which was created in the mid-1980s.

But CIAT says NEWS will be able to draw insights from a massive amount of diverse data enabling it to identify hunger risks faster than traditional methods.

“What is different about NEWS is that it pays attention to malnutrition, not just drought or famine, but the nutrition outcome that really matters, malnutrition especially in women and children. For the first time, we are saying these are the options way ahead of time. That gives policy makers an opportunity to really do what they intend to do which is make the lives of women and children better in Africa,” said Dr. Mercy Lung’aho, a CIAT nutrition expert.

While food emergencies like famine and drought grab headlines, the International Center for Tropical Agriculture says chronic malnutrition affects one in four people in Africa, taking a serious toll on economic growth and leaving them especially vulnerable in times of crisis….(More)”.

The Way Ahead

Curated on May 31, 2017August 3, 2018 by Stefaan Verhulst

Transcript of lecture delivered by Stephen Fry on the 28th May 2017 • Hay Festival, Hay-on-Wye: “Peter Florence, the supremo of this great literary festival, asked me some months ago if I might, as part of Hay’s celebration of the five hundredth anniversary of Martin Luther’s kickstarting of the reformation, suggest a reform of the internet…

You will be relieved to know, that unlike Martin Luther, I do not have a full 95 theses to nail to the door, or in Hay’s case, to the tent flap. It might be worth reminding ourselves perhaps, however, of the great excitements of the early 16th century. I do not think it is a coincidence that Luther grew up as one of the very first generation to have access to printed books, much as some of you may have children who were the first to grow up with access to e-books, to iPads and to the internet….

The next big step for AI is the inevitable achievement of Artificial General Intelligence, or AGI, sometimes called ‘full artificial intelligence’ the point at which machines really do think like humans. In 2013, hundreds of experts were asked when they thought AGI may arise and the median prediction was they year 2040. After that the probability, most would say certain, is artificial super-intelligence and the possibility of reaching what is called the Technological Singularity – what computer pioneer John van Neumann described as the point “…beyond which humans affairs, as we know them, could not continue.” I don’t think I have to worry about that. Plenty of you in this tent have cause to, and your children beyond question will certainly know all about it. Unless of course the climate causes such havoc that we reach a Meteorological Singularity. Or the nuclear codes are penetrated by a self-teaching algorithm whose only purpose is to find a way to launch…

It’s clear that, while it is hard to calculate the cascade upon cascade of new developments and their positive effects, we already know the dire consequences and frightening scenarios that threaten to engulf us. We know them because science fiction writers and dystopians in all media have got there before us and laid the nightmare visions out. Their imaginations have seen it all coming. So whether you believe Ray Bradbury, George Orwell, Aldous Huxley, Isaac Asimov, Margaret Atwood, Ridley Scott, Anthony Burgess, H. G. Wells, Stanley Kubrick, Kazuo Ishiguro, Philip K. Dick, William Gibson, John Wyndham, James Cameron, the Wachowski’s or the scores and scores of other authors and film-makers who have painted scenarios of chaos and doom, you can certainly believe that a great transformation of human society is under way, greater than Gutenberg’s revolution – greater I would submit than the Industrial Revolution (though clearly dependent on it) – the greatest change to our ways of living since we moved from hunting and gathering to settling down in farms, villages and seaports and started to trade and form civilisations. Whether it will alter the behaviour, cognition and identity of the individual in the same way it is certain to alter the behaviour, cognition and identity of the group, well that is a hard question to answer.

But believe me when I say that it is happening. To be frank it has happened. The unimaginably colossal sums of money that have flowed to the first two generations of Silicon Valley pioneers have filled their coffers, their war chests, and they are all investing in autonomous cars, biotech, the IoT, robotics Artificial Intelligence and their convergence. None more so than the outlier, the front-runner Mr Elon Musk whose neural link system is well worth your reading about online on the great waitbutwhy.com website. Its author Tim Urban is a paid consultant of Elon Musk’s so he has the advantage of knowing what he is writing about but the potential disadvantage of being parti pri and lacking in objectivity. Elon Musk made enough money from his part in the founding and running of PayPal to fund his manifold exploits. The Neuralink project joins his Tesla automobile company and subsidiary battery and solar power businesses, his Space X reusable spacecraft group, his OpenAI initiative and Hyperloop transport system. The 1950s and 60s Space Race was funded by sovereign governments, this race is funded by private equity, by the original investors in Google, Apple, Facebook and so on. Nation states and their agencies are not major players in this game, least of all poor old Britain. Even if our politicians were across this issue, and they absolutely are not, our votes would still be an irrelevance….

So one thesis I would have to nail up to the tent is to clamour for government to bring all this deeper into schools and colleges. The subject of the next technological wave, I mean, not pornography and prostitution. Get people working at the leading edge of AI and robotics to come into the classrooms. But more importantly listen to them – even if what they say is unpalatable, our masters must have the intellectual courage and honesty to say if they don’t understand and ask for repetition and clarification. This time, in other words, we mustn’t let the wave engulf us, we must ride its crest. It’s not quite too late to re-gear governmental and educational planning and thinking….

The witlessness of our leaders and of ourselves is indeed a problem. The real danger surely is not technology but technophobic Canute-ism, a belief that we can control, change or stem the technological tide instead of understanding that we need to learn how to harness it. Driving cars is dangerous, but we developed driving lesson requirements, traffic controls, seat-belts, maintenance protocols, proximity sensors, emission standards – all kinds of ways of mitigating the danger so as not to deny ourselves the life-changing benefits of motoring.

We understand why angry Ned Ludd destroyed the weaving machines that were threatening his occupation (Luddites were prophetic in their way, it was weaving machines that first used the punched cards on which computers relied right up to the 1970s). We understand too why French workers took their clogs, their sabots as they were called, and threw them into the machinery to jam it up, giving us the word sabotage. But we know that they were in the end, if you’ll pardon the phrase, pissing into the wind. No technology has ever been stopped.

So what is the thesis I am nailing up? Well, there is no authority for me to protest to, no equivalent of Pope Leo X for it to be delivered to, and I am certainly no Martin Luther. The only thesis I can think worth nailing up is absurdly simple. It is a cry as much from the heart as from the head and it is just one word – Prepare. We have an advantage over our hunter gatherer and farming ancestors, for whether it is Winter that is coming, or a new Spring, is entirely in our hands, so long as we prepare….(More)”.