environment

An open-science crowdsourcing approach for producing community noise maps using smartphones

Curated on November 1, 2018November 15, 2018 by Stefaan Verhulst

Judicaël Picaut at al at Building and Environment: “An alternative method is proposed for the assessment of the noise environment, on the basis of a crowdsourcing approach. For this purpose, a smartphone application and a spatial data infrastructure have been specifically developed in order to collect physical data (noise indicators, GPS positions, etc.) and perceptual data (pleasantness), without territorial limits, of the sound environment.

As the project is developed within an Open Science framework, all source codes, methodologies, tools and raw data are freely available, and if necessary, can be duplicated for any specific use. In particular, the collected data can be used by the scientific community, cities, associations, or any institution, which would like to develop new tools for the evaluation and representation of sound environments. In this paper, all the methodological and technical issues are detailed, and a first analysis of the collected data is proposed….(More)”.

The causal effect of trust

Curated on October 27, 2018 by Stefaan Verhulst

Paper by Björn Bartling, Ernst Fehr, David Huffman and Nick Netzer: “Trust affects almost all human relationships – in families, organizations, markets and politics. However, identifying the conditions under which trust, defined as people’s beliefs in the trustworthiness of others, has a causal effect on the efficiency of human interactions has proven to be difficult. We show experimentally and theoretically that trust indeed has a causal effect. The duration of the effect depends, however, on whether initial trust variations are supported by multiple equilibria.

We study a repeated principal-agent game with multiple equilibria and document empirically that an efficient equilibrium is selected if principals believe that agents are trustworthy, while players coordinate on an inefficient equilibrium if principals believe that agents are untrustworthy. Yet, if we change the institutional environment such that there is a unique equilibrium, initial variations in trust have short-run effects only. Moreover, if we weaken contract enforcement in the latter environment, exogenous variations in trust do not even have a short-run effect. The institutional environment thus appears to be key for whether trust has causal effects and whether the effects are transient or persistent…(More)”.

Deep Fakes: A Looming Challenge for Privacy, Democracy, and National Security

Curated on October 24, 2018 by Stefaan Verhulst

Paper by Robert Chesney and Danielle Keats Citron: “Harmful lies are nothing new. But the ability to distort reality has taken an exponential leap forward with “deep fake” technology. This capability makes it possible to create audio and video of real people saying and doing things they never said or did. Machine learning techniques are escalating the technology’s sophistication, making deep fakes ever more realistic and increasingly resistant to detection.

Deep-fake technology has characteristics that enable rapid and widespread diffusion, putting it into the hands of both sophisticated and unsophisticated actors. While deep-fake technology will bring with it certain benefits, it also will introduce many harms. The marketplace of ideas already suffers from truth decay as our networked information environment interacts in toxic ways with our cognitive biases. Deep fakes will exacerbate this problem significantly. Individuals and businesses will face novel forms of exploitation, intimidation, and personal sabotage. The risks to our democracy and to national security are profound as well.

Our aim is to provide the first in-depth assessment of the causes and consequences of this disruptive technological change, and to explore the existing and potential tools for responding to it. We survey a broad array of responses, including: the role of technological solutions; criminal penalties, civil liability, and regulatory action; military and covert-action responses; economic sanctions; and market developments. We cover the waterfront from immunities to immutable authentication trails, offering recommendations to improve law and policy and anticipating the pitfalls embedded in various solutions….(More)”.

A Doctor’s Prescription: Data May Finally Be Good for Your Health

Curated on October 9, 2018 by Stefaan Verhulst

Interview by Art Kleiner: “In 2015, Robert Wachter published The Digital Doctor: Hope, Hype, and Harm at the Dawn of Medicine’s Computer Age, a skeptical account of digitization in hospitals. Despite the promise offered by the digital transformation of healthcare, electronic health records had not delivered better care and greater efficiency. The cumbersome design, legacy procedures, and resistance from staff were frustrating everyone — administrators, nurses, consultants, and patients. Costs continued to rise, and preventable medical mistakes were not spotted. One patient at Wachter’s own hospital, one of the nation’s finest, was given 39 times the correct dose of antibiotics by an automated system that nobody questioned. The teenager survived, but it was clear that there needed to be a new approach to the management and use of data.

Wachter has for decades considered the delivery of healthcare through a lens focused on patient safety and quality. In 1996, he coauthored a paper in the New England Journal of Medicine that coined the term hospitalist in describing and promoting a new way of managing patients in hospitals: having one doctor — the hospitalist — “own” the patient journey from admission to discharge. The primary goal was to improve outcomes and save lives. Wachter argued it would also reduce costs and increase efficiency, making the business case for better healthcare. And he was right. Today there are more than 50,000 hospitalists, and it took just two years from the article’s publication to have the first data proving his point. In 2016, Wachter was named chair of the Department of Medicine at the University of California, San Francisco (UCSF), where he has worked since 1990.

Today, Wachter is, to paraphrase the title of a recent talk, less grumpy than he used to be about health tech. The hope part of his book’s title has materialized in some areas faster than he predicted. AI’s advances in imaging are already helping the detection of cancers become more accurate. As data collection has become better systematized, big technology firms such as Google, Amazon, and Apple are entering (in Google’s case, reentering) the field and having more success focusing their problem-solving skills on healthcare issues. In his San Francisco office, Wachter sat down with strategy+businessto discuss why the healthcare system may finally be about to change….

Systems for Fresh Thinking

S+B: The changes you appreciate seem to have less to do with technological design and more to do with people getting used to the new systems, building their own variations, and making them work.
WACHTER: The original electronic health record was just a platform play to get the data in digital form. It didn’t do anything particularly helpful in terms of helping the physicians make better decisions or helping to connect one kind of doctor with another kind of doctor. But it was a start.

I remember that when we were starting to develop our electronic health record at UCSF, 12 or 13 years ago, I hired a physician who is now in charge of our health computer system. I said to him, “We don’t have our electronic health record in yet, but I’m pretty sure we will in seven or eight years. What will your job be when that’s done?” I actually thought once the system was fully implemented, we’d be done with the need to innovate and evolve in health IT. That, of course, was asinine.

S+B: That’s like saying to an auto mechanic, “What will your job be when we have automatic transmissions?”
WACHTER: Right, but even more so, because many of us saw electronic health records as the be-all and end-all of digitally facilitated medicine. But putting in the electronic health record is just step one of 10. Then you need to start connecting all the pieces, and then you add analytics that make sense of the data and make predictions. Then you build tools and apps to fit into the workflow and change the way you work.

One of my biggest epiphanies was this: When you digitize, in any industry, nobody is clever enough to actually change anything. All they know how to do is digitize the old practice. You only start seeing real progress when smart people come in, begin using the new system, and say, “Why the hell do we do it that way?” And then you start thinking freshly about the work. That’s when you have a chance to reimagine the work in a digital environment…(More)”.

Desire paths: the illicit trails that defy the urban planners

Curated on October 8, 2018 by Stefaan Verhulst

Ellie Violet Bramley at The Guardian: “We’ve all been there. You want a short cut – to the bus stop, office or corner shop – but there’s no designated path. Others before you have already flattened the grass, or cut a line through a hedge. Why not, you think.

So goes the logic of “desire paths” – described by Robert Macfarlane as “paths & tracks made over time by the wishes & feet of walkers, especially those paths that run contrary to design or planning”; he calls them “free-will ways”. The New Yorker offers other names: “cow paths, pirate paths, social trails, kemonomichi (beast trails), chemins de l’âne (donkey paths), and Olifantenpad (elephant trails)”. JM Barrie described the m as “Paths that have Made Themselves”….

Desire paths have been described as illustrating “the tension between the native and the built environment and our relationship to them”. Because they often form in areas where there are no pavements, they can be seen to “indicate [the] yearning” of those wishing to walk, a way for “city dwellers to ‘write back’ to city planners, giving feedback with their feet”.

But as well as revealing the path of least resistance, they can also reveal where people refuse to tread. If you’ve been walking the same route for years, an itchy-footed urge to go off-piste, even just a few metres, is probably something you’ll identify with. It’s this idea that led one academic journal to describe them as a record of “civil disobedience”.

Rather than dismiss or even chastise the naughty pedestrian by placing fences or railings to block off “illicit” wanderings, some planners work to incorporate them into urban environments. This chimes with the thinking of Jane Jacobs, an advocate of configuring cities around desire lines, who said: “There is no logic that can be superimposed on the city; people make it, and it is to them … that we must fit our plans.”…(More)”.

Privacy and Interoperability Challenges Could Limit the Benefits of Education Technology

Curated on October 2, 2018October 5, 2018 by Stefaan Verhulst

Report by Katharina Ley Best and John F. Pane: “The expansion of education technology is transforming the learning environment in classrooms, schools, school systems, online, and at home. The rise of education technology brings with it an increased opportunity for the collection and application of data, which are valuable resources for educators, schools, policymakers, researchers, and software developers.

RAND researchers examine some of the possible implications of growing data collection and availability related to education technology. Specifically, this Perspective discusses potential data infrastructure challenges that could limit data usefulness, consider data privacy implications in an education technology context, and review privacy principles that could help educators and policymakers evaluate the changing education data privacy landscape in anticipation of potential future changes to regulations and best practices….(More)”.

What Can Satellite Imagery Tell Us About Obesity in Cities?

Curated on October 1, 2018 by Stefaan Verhulst

Emily Matchar at Smithsonian: “About 40 percent of American adults are obese, defined as having a body mass index (BMI) over 30. But obesity is not evenly distributed around the country. Some cities and states have far more obese residents than others. Why? Genetics, stress, income levels and access to healthy foods are play a role. But increasingly researchers are looking at the built environment—our cities—to understand why people are fatter in some places than in others.

New research from the University of Washington attempts to take this approach one step further by using satellite data to examine cityscapes. By using the satellite images in conjunction with obesity data, they hope to uncover which urban features might influence a city’s obesity rate.

The researchers used a deep learning network to analyze about 150,000 high-resolution satellite image of four cities: Los Angeles, Memphis, San Antonio and Seattle. The cities were selected for being from states with both high obesity rates (Texas and Tennessee) and low obesity rates (California and Washington). The network extracted features of the built environment: crosswalks, parks, gyms, bus stops, fast food restaurants—anything that might be relevant to health.

“If there’s no sidewalk you’re less likely to go out walking,” says Elaine Nsoesie, a professor of global health at the University of Washington who led the research.

The team’s algorithm could then see what features were more or less common in areas with greater and lesser rates of obesity. Some findings were predictable: more parks, gyms and green spaces were correlated with lower obesity rates. Others were surprising: more pet stores equaled thinner residents (“a high density of pet stores could indicate high pet ownership, which could influence how often people go to parks and take walks around the neighborhood,” the team hypothesized).

A paper on the results was recently published in the journal JAMA Network Open….(More)”.

The New York City Business Atlas: Leveling the Playing Field for Small Businesses with Open Data

Curated on September 25, 2018 by Stefaan Verhulst

Chapter by Stefaan Verhulst and Andrew Young in Smarter New York City:How City Agencies Innovate. Edited by André Corrêa d’Almeida: “While retail entrepreneurs, particularly those operating in the small-business space, are experts in their respective trades, they often lack access to high-quality information about social, environmental, and economic conditions in the neighborhoods where they operate or are considering operating.

The New York City Business Atlas, conceived by the Mayor’s Office of Data Analytics (MODA) and the Department of Small Business Services, is designed to alleviate that information gap by providing a public web-based tool that gives small businesses access to high-quality data to help them decide where to establish a new business or expand an existing one. e tool brings together a diversity of data, including business-fling data from the Department of Consumer Affairs, sales-tax data from the Department of Finance, demographic data from the census, and traffic data from Placemeter, a New York City startup focusing on real-time traffic information.

The initial iteration of the Business Atlas made useful and previously inaccessible data available to small-business owners and entrepreneurs in an innovative manner. After a few years, however, it became clear that the tool was not experiencing the level of use or creating the level of demonstrable impact anticipated. Rather than continuing down the same path or abandoning the effort entirely, MODA pivoted to a new approach, moving from the Business Atlas as a single information-providing tool to the Business Atlas as a suite of capabilities aimed at bolstering New York’s small-business community.

Through problem- and user-centered efforts, the Business Atlas is now making important insights available to stakeholders who can put it to meaningful use—from how long it takes to open a restaurant in the city to which areas are most in need of education and outreach to improve their code compliance. This chapter considers the open data environment from which the Business Atlas was launched, details the initial version of the Business Atlas and the lessons it generated and describes the pivot to this new approach….(More)”.

United Nations accidentally exposed passwords and sensitive information to the whole internet

Curated on September 24, 2018 by Stefaan Verhulst

Micah Lee at The Intercept: “The United Nations accidentally published passwords, internal documents, and technical details about websites when it misconfigured popular project management service Trello, issue tracking app Jira, and office suite Google Docs.

The mistakes made sensitive material available online to anyone with the proper link, rather than only to specific users who should have access. Affected data included credentials for a U.N. file server, the video conferencing system at the U.N.’s language school, and a web development environment for the U.N.’s Office for the Coordination of Humanitarian Affairs. Security researcher Kushagra Pathak discovered the accidental leak and notified the U.N. about what he found a little over a month ago. As of today, much of the material appears to have been taken down.

In an online chat, Pathak said he found the sensitive information by running searches on Google. The searches, in turn, produced public Trello pages, some of which contained links to the public Google Docs and Jira pages.

Trello projects are organized into “boards” that contain lists of tasks called “cards.” Boards can be public or private. After finding one public Trello board run by the U.N., Pathak found additional public U.N. boards by using “tricks like by checking if the users of one Trello board are also active on some other boards and so on.” One U.N. Trello board contained links to an issue tracker hosted on Jira, which itself contained even more sensitive information. Pathak also discovered links to documents hosted on Google Docs and Google Drive that were configured to be accessible to anyone who knew their web addresses. Some of these documents contained passwords….Here is just some of the sensitive information that the U.N. accidentally made accessible to anyone who Googled for it:

A social media team promoting the U.N.’s “peace and security” efforts published credentials to access a U.N. remote file access, or FTP, server in a Trello card coordinating promotion of the International Day of United Nations Peacekeepers. It is not clear what information was on the server; Pathak said he did not connect to it.
The U.N.’s Language and Communication Programme, which offers language courses at U.N. Headquarters in New York City, published credentials for a Google account and a Vimeo account. The program also exposed, on a publicly visible Trello board, credentials for a test environment for a human resources web app. It also made public a Google Docs spreadsheet, linked from a public Trello board, that included a detailed meeting schedule for 2018, along with passwords to remotely access the program’s video conference system to join these meetings.
One public Trello board used by the developers of Humanitarian Response and ReliefWeb, both websites run by the U.N.’s Office for the Coordination of Humanitarian Affairs, included sensitive information like internal task lists and meeting notes. One public card from the board had a PDF, marked “for internal use only,” that contained a map of all U.N. buildings in New York City. …(More)”.