How AI could save lives without spilling medical secrets

Curated on Posted on by Stefaan Verhulst

Will Knight at MIT Technology Review: “The potential for artificial intelligence to transform health care is huge, but there’s a big catch.

AI algorithms will need vast amounts of medical data on which to train before machine learning can deliver powerful new ways to spot and understand the cause of disease. That means imagery, genomic information, or electronic health records—all potentially very sensitive information.

That’s why researchers are working on ways to let AI learn from large amounts of medical data while making it very hard for that data to leak.

One promising approach is now getting its first big test at Stanford Medical School in California. Patients there can choose to contribute their medical data to an AI system that can be trained to diagnose eye disease without ever actually accessing their personal details.

Participants submit ophthalmology test results and health record data through an app. The information is used to train a machine-learning model to identify signs of eye disease in the images. But the data is protected by technology developed by Oasis Labs, a startup spun out of UC Berkeley, which guarantees that the information cannot be leaked or misused. The startup was granted permission by regulators to start the trial last week.

The sensitivity of private patient data is a looming problem. AI algorithms trained on data from different hospitals could potentially diagnose illness, prevent disease, and extend lives. But in many countries medical records cannot easily be shared and fed to these algorithms for legal reasons. Research on using AI to spot disease in medical images or data usually involves relatively small data sets, which greatly limits the technology’s promise….

Oasis stores the private patient data on a secure chip, designed in collaboration with other researchers at Berkeley. The data remains within the Oasis cloud; outsiders are able to run algorithms on the data, and receive the results, without its ever leaving the system. A smart contract—software that runs on top of a blockchain—is triggered when a request to access the data is received. This software logs how the data was used and also checks to make sure the machine-learning computation was carried out correctly….(More)”.

Publics in Emerging Economies Worry Social Media Sow Division, Even as They Offer New Chances for Political Engagement

Curated on Posted on by Stefaan Verhulst

Aaron Smith, Laura Silver, Courtney Johnson, Kyle Taylor and Jingjing Jiang at Pew Research: “In recent years, the internet and social media have been integral to political protests, social movements and election campaigns around the globe. Events from the Arab Spring to the worldwide spread of#MeToo have been aided by digital connectivity in both advanced and emerging economies. But popular social media and messaging platforms like Facebook and WhatsApp have drawn attention for their potential role in spreading misinformation, facilitating political manipulation by foreign and domestic actors, and increasing violence and hate crimes.

Recently, the Sri Lankan government shut down several of the country’s social media and messaging services immediately after Easter day bombings at Catholic churches killed and wounded hundreds. Some technology enthusiasts praised the decision but wondered if this development marked a change from pro-democracy, Arab Spring-era hopes that digital technology would be a liberating tool to a new fear that it has become “a force that can corrode” societies.

In the context of these developments, a Pew Research Center survey of adults in 11 emerging economies finds these publics are worried about the risks associated with social media and other communications technologies – even as they cite their benefits in other respects. Succinctly put, the prevailing view in the surveyed countries is that mobile phones, the internet and social media have collectively amplified politics in both positive and negative directions – simultaneously making people more empowered politically andpotentially more exposed to harm.

Chart showing that people in emerging economies see social media giving them political voice but also increasing the risk of manipulation.

When it comes to the benefits, adults in these countries see digital connectivity enhancing people’s access to political information and facilitating engagement with their domestic politics. Majorities in each country say access to the internet, mobile phones and social media has made people more informed about current events, and majorities in most countries believe social media have increased ordinary people’s ability to have a meaningful voice in the political process. Additionally, half or more in seven of these 11 countries say technology has made people more accepting of those who have different views than they do.

But these perceived benefits are frequently accompanied by concerns about the limitations of technology as a tool for political action or information seeking. Even as many say social media have increased the influence of ordinary people in the political process, majorities in eight of these 11 countries feel these platforms have simultaneously increased the risk that people might be manipulated by domestic politicians. Around half or more in eight countries also think these platforms increase the risk that foreign powers might interfere in their country’s elections….(More)”.

How Cold Is That Library? There’s a Google Doc for That

Curated on Posted on by Stefaan Verhulst

Colleen Flaherty at Inside Higher Ed: “What a difference preparation makes when it comes to doing research in Arctic-level air-conditioned academic libraries (or ones that are otherwise freezing — or not air-conditioned at all). Luckily, Megan L. Cook, assistant professor of English at Colby College, published a crowdsourced document called“How Cold Is that Library?” ….

Cook, who was not immediately available for comment, has said the document was group effort. Juliet Sperling, a faculty fellow in American art at Colby, credited her colleague’s “brilliance” but said the document was “generally inspired by conversations we’ve had as co-fellows” in the Andrew W. Mellon Society of Fellows in Critical Bibliography. The society brings together 60-some scholars of rare books and material texts from a variety of disciplinary or institutional approaches, she said, “so collectively, we’ve all spent quite a bit of time in libraries of various climates all over the world.” In addition to library temperatures, lighting and even humidity levels, the scholars trade research destinations’ photo policies and nearby eateries and drinking holes, among other tips. A spreadsheet opens up that resource to others, Sperling said. …(More)”.

Missing Numbers

Curated on Posted on by Stefaan Verhulst

Introduction by Anna Powell-Smith of a new “blog on the data the government should collect, but doesn’t”: “…Over time, I started to notice a pattern. Across lots of different policy areas, it was impossible for governments to make good decisions because of a basic lack of data. There was always critical data that the state either didn’t collect at all, or collected so badly that it made change impossible.

Eventually, I decided that the power to not collect data is one of the most important and little-understood sources of power that governments have. This is why I’m writing Missing Numbers: to encourage others to ask “is this lack of data a deliberate ploy to get away with something”?

By refusing to amass knowledge in the first place, decision-makers exert power over over the rest of us. It’s time that this power was revealed, so we can have better conversations about what we need to know to run this country successfully.

A typical example

The government records and publishes data on how often each NHS hospital receives formal complaints. This is very helpful, because it means patients and the people who care for them can spot hospitals whose performance is worrying.

But the government simply doesn’t record data, even internally, on how often formal complaints are made about each Jobcentre. (That FOI response is from 2015, but I’ve confirmed it’s still true in 2019.) So it is impossible for it to know if some Jobcentres are being seriously mismanaged….(More)”.

The EU Wants to Build One of the World’s Largest Biometric Databases. What Could Possibly Go Wrong?

Curated on Posted on by Stefaan Verhulst

Grace Dobush at Fortune: “China and India have built the world’s largest biometric databases, but the European Union is about to join the club.

The Common Identity Repository (CIR) will consolidate biometric data on almost all visitors and migrants to the bloc, as well as some EU citizens—connecting existing criminal, asylum, and migration databases and integrating new ones. It has the potential to affect hundreds of millions of people.

The plan for the database, first proposed in 2016 and approved by the EU Parliament on April 16, was sold as a way to better track and monitor terrorists, criminals, and unauthorized immigrants.

The system will target the fingerprints and identity data for visitors and immigrants initially, and represents the first step towards building a truly EU-wide citizen database. At the same time, though, critics argue its mere existence will increase the potential for hacks, leaks, and law enforcement abuse of the information….

The European Parliament and the European Council have promised to address those concerns, through “proper safeguards” to protect personal privacy and to regulate officers’ access to data. In 2016, they passed a law regarding law enforcement’s access to personal data, alongside General Data Protection Regulation or GDPR.

But total security is a tall order. Germany is currently dealing with multipleinstances of police officers allegedly leaking personal information to far-right groups. Meanwhile, a Swedish hacker went to prison for hacking into Denmark’s public records system in 2012 and dumping online the personal data of hundreds of thousands of citizens and migrants….(More)”.


Facebook will open its data up to academics to see how it impacts elections

Curated on Posted on by Stefaan Verhulst

MIT Technology Review: “More than 60 researchers from 30 institutions will get access to Facebook user data to study its impact on elections and democracy, and how it’s used by advertisers and publishers.

A vast trove: Facebook will let academics see which websites its users linked to from January 2017 to February 2019. Notably, that means they won’t be able to look at the platform’s impact on the US presidential election in 2016, or on the Brexit referendum in the UK in the same year.

Despite this slightly glaring omission, it’s still hard to wrap your head around the scale of the data that will be shared, given that Facebook is used by 1.6 billion people every day. That’s more people than live in all of China, the most populous country on Earth. It will be one of the largest data sets on human behavior online to ever be released.

The process: Facebook didn’t pick the researchers. They were chosen by the Social Science Research Council, a US nonprofit. Facebook has been working on this project for over a year, as it tries to balance research interests against user privacy and confidentiality.

Privacy: In a blog post, Facebook said it will use a number of statistical techniques to make sure the data set can’t be used to identify individuals. Researchers will be able to access it only via a secure portal that uses a VPN and two-factor authentication, and there will be limits on the number of queries they can each run….(More)”.

Nagging misconceptions about nudge theory

Curated on Posted on by Stefaan Verhulst

Cass Sunstein at The Hill: “Nudges are private or public initiatives that steer people in particular directions but that also allow them to go their own way.

A reminder is a nudge; so is a warning. A GPS device nudges; a default rule, automatically enrolling people in some program, is a nudge.

To qualify as a nudge, an initiative must not impose significant economic incentives. A subsidy is not a nudge; a tax is not a nudge; a fine or a jail sentence is not a nudge. To count as such, a nudge must fully preserve freedom of choice.

In 2009, University of Chicago economist Richard Thaler and I co-wrote a book that drew on research in psychology and behavioral economics to help people and institutions, both public and private, improve their decision-making.

In the 10 years since “Nudge” was published, there has been an extraordinary outpouring of new thought and action, with particular reference to public policy.

Behavioral insight teams, or “nudge units” of various sorts, can be found in many nations, including Australia, Canada, Denmark, United Kingdom, the United States, the Netherlands, Germany, Singapore, Japan and Qatar.

Those teams are delivering. By making government more efficient, and by improving safety and health, they are helping to save a lot of money and a lot of lives. And in many countries, including the U.S., they don’t raise partisan hackles; both Democrats and Republicans have enthusiastically embraced them.   

Still, there are a lot of mistakes and misconceptions out there, and they are diverting attention and hence stalling progress. Here are the three big ones:

1. Nudges do not respect freedom. …

2. Nudges are based on excessive trust in government...

3. Nudges cannot achieve a whole lot.…(More)”.

Revisiting the causal effect of democracy on long-run development

Curated on Posted on by Stefaan Verhulst

Blog post by Markus Eberhardt: “In a recent paper, Acemoglu et al. (2019), henceforth “ANRR”, demonstrated a significant and large causal effect of democracy on long-run growth. By adopting a simple binary indicator for democracy, and accounting for the dynamics of development, these authors found that a shift to democracy leads to a 20% higher level of development in the long run.1

The findings are remarkable in three ways: 

  1. Previous research often emphasised that a simple binary measure for democracy was perhaps “too blunt a concept” (Persson and Tabellini 2006) to provide robust empirical evidence.
  2.  Positive effects of democracy on growth were typically only a “short-run boost” (Rodrik and Wacziarg 2005). 
  3. The empirical findings are robust across a host of empirical estimators with different assumptions about the data generating process, including one adopting a novel instrumentation strategy (regional waves of democratisation).

ANRR’s findings are important because, as they highlight in a column on Vox, there is “a belief that democracy is bad for economic growth is common in both academic political economy as well as the popular press.” For example, Posner (2010) wrote that “[d]ictatorship will often be optimal for very poor countries”. 

The simplicity of ANRR’s empirical setup, the large sample of countries, the long time horizon (1960 to 2010), and the robust positive – and remarkably stable – results across the many empirical methods they employ send a very powerful message against such doubts that democracy does cause growth.

I agree with their conclusion, but with qualifications. …(More)”.

Finding Crtl: Visions for the Future Internet

Curated on Posted on by Stefaan Verhulst

Nesta: “In March 2019, the World Wide Web turned thirty, and October will mark the fiftieth anniversary of the internet itself. These anniversaries offer us an important opportunity to reflect on the internet’s history, but also a chance to ponder its future.

While early internet pioneers dreamed of an internet that would be open, free and decentralised, the story of the internet today is mostly a story of loss of control. Just a handful of companies determine what we read, see and buy, where we work and where we live, who we vote for, who we love, and who we are. Many of us feel increasingly uneasy about these developments. We live in a world where new technologies happen to us; the average person has very little agency to change things within the current political and economic parameters.

Yet things don’t have to be this way. In a time where the future of the internet is usually painted as bleak and uncertain, we need positive visions about where we go next.

As part of the Next Generation Internet (NGI) initiative – the European Commission’s new flagship programme working on building a more democratic, inclusive and resilient internet – we have created this “visions book”, a collection of essays, short stories, poetry and artworks from over 30 contributors from 15 countries and five continents. Each contributor has a unique background, as most were selected via an open call for submissions held last autumn. As such, the book collects both established and emerging voices, all reflecting on the same crucial questions: where did we come from, but more importantly, where do we go next?

The NGI hopes to empower everyone to take active control in shaping the future: the internet does not just belong to those who hold power today, but to all of us….(More)”.

The Blockchain Game: A great new tool for your classroom

Curated on Posted on by Stefaan Verhulst

IBM Blockchain Blog: “Blockchain technology can be a game-changer for accounting, supply chain, banking, contract law, and many other fields. But it will only be useful if lots and lots of non-technical managers and leaders trust and adopt it. And right now, just understanding what blockchain is, can be difficult to understand even for the brightest in these fields. Enter The Blockchain Game, a hands-on exercise that explains blockchain’s core principals, and serves as a launching pad for discussion of blockchain’s real-world applications.

In The Blockchain Game students act as nodes and miners on a blockchain network for storing student grades at a university. Participants record the grade and course information, and then “build the block” by calculating a unique identifier (a hash) to secure the grade ledger, and miners get rewarded for their work. As the game is played, the audience learns about hashes, private keys, and what uses are appropriate for a blockchain ledger.

Basics of the Game

  • A hands-on simulation centering around a blockchain for academic scores, including a discussion at the end of the simulation regarding if storing grades would be a good application for blockchain.
  • No computers. Participants are the computors and calculate blocks.
  • The game seeks to teach core concepts about a distributed ledger but can be modified to whichever use case the educator wishes to use — smart contracts, supply chain, applications and others.
  • Additional elements can be added if instructors want to facilitate the game on a computer….(More)”.