Massive Citizen Science Effort Seeks to Survey the Entire Great Barrier Reef

Curated on Posted on by Stefaan Verhulst

Jessica Wynne Lockhart at Smithsonian: “In August, marine biologists Johnny Gaskell and Peter Mumby and a team of researchers boarded a boat headed into unknown waters off the coasts of Australia. For 14 long hours, they ploughed over 200 nautical miles, a Google Maps cache as their only guide. Just before dawn, they arrived at their destination of a previously uncharted blue hole—a cavernous opening descending through the seafloor.

After the rough night, Mumby was rewarded with something he hadn’t seen in his 30-year career. The reef surrounding the blue hole had nearly 100 percent healthy coral cover. Such a find is rare in the Great Barrier Reef, where coral bleaching events in 2016 and 2017 led to headlines proclaiming the reef “dead.”

“It made me think, ‘this is the story that people need to hear,’” Mumby says.

The expedition from Daydream Island off the coast of Queensland was a pilot program to test the methodology for the Great Reef Census, a citizen science project headed by Andy Ridley, founder of the annual conservation event Earth Hour. His latest organization, Citizens of the Great Barrier Reef, has set the ambitious goal of surveying the entire 1,400-mile-long reef system in 2020…(More)”.

Digital dystopia: how algorithms punish the poor

Curated on Posted on by Stefaan Verhulst

Ed Pilkington at The Guardian: “All around the world, from small-town Illinois in the US to Rochdale in England, from Perth, Australia, to Dumka in northern India, a revolution is under way in how governments treat the poor.

You can’t see it happening, and may have heard nothing about it. It’s being planned by engineers and coders behind closed doors, in secure government locations far from public view.

Only mathematicians and computer scientists fully understand the sea change, powered as it is by artificial intelligence (AI), predictive algorithms, risk modeling and biometrics. But if you are one of the millions of vulnerable people at the receiving end of the radical reshaping of welfare benefits, you know it is real and that its consequences can be serious – even deadly.

The Guardian has spent the past three months investigating how billions are being poured into AI innovations that are explosively recasting how low-income people interact with the state. Together, our reporters in the US, Britain, India and Australia have explored what amounts to the birth of the digital welfare state.

Their dispatches reveal how unemployment benefits, child support, housing and food subsidies and much more are being scrambled online. Vast sums are being spent by governments across the industrialized and developing worlds on automating poverty and in the process, turning the needs of vulnerable citizens into numbers, replacing the judgment of human caseworkers with the cold, bloodless decision-making of machines.

At its most forbidding, Guardian reporters paint a picture of a 21st-century Dickensian dystopia that is taking shape with breakneck speed…(More)”.

Index: Secondary Uses of Personal Data

Curated on Posted on by Michelle Winowatan

By Alexandra Shaw, Andrew Zahuranec, Andrew Young, Stefaan Verhulst

The Living Library Index–inspired by the Harper’s Index–provides important statistics and highlights global trends in governance innovation. This installment focuses on public perceptions regarding secondary uses of personal data (or the re-use of data initially collected for a different purpose). It provides a summary of societal perspectives toward personal data usage, sharing, and control. It is not meant to be comprehensive–rather, it intends to illustrate conflicting, and often confusing, attitudes toward the re-use of personal data. 

Please share any additional, illustrative statistics on data, or other issues at the nexus of technology and governance, with us at [email protected]

Data ownership and control 

  • Percentage of Americans who say it is “very important” they control information collected about them: 74% – 2016
  • Americans who think that today’s privacy laws are not good enough at protecting people’s privacy online: 68% – 2016
  • Americans who say they have “a lot” of control over how companies collect and use their information: 9% – 2015
  • In a survey of 507 online shoppers, the number of respondents who indicated they don’t want brands tracking their location: 62% – 2015
  • In a survey of 507 online shoppers, the amount who “prefer offers that are targeted to where they are and what they are doing:” 60% – 2015 
  • Number of surveyed American consumers willing to provide data to corporations under the following conditions: 
    • “Data about my social concerns to better connect me with non-profit organizations that advance those causes:” 19% – 2018
    • “Data about my DNA to help me uncover any hereditary illnesses:” 21% – 2018
    • “Data about my interests and hobbies to receive relevant information and offers from online sellers:” 32% – 2018
    • “Data about my location to help me find the fastest route to my destination:” 40% – 2018
    • “My email address to receive exclusive offers from my favorite brands:”  56% – 2018  

Consumer Attitudes 

  • Academic study participants willing to donate personal data to research if it could lead to public good: 60% – 2014
  • Academic study participants willing to share personal data for research purposes in the interest of public good: 25% – 2014
  • Percentage who expect companies to “treat [them] like an individual, not as a member of some segment like ‘millennials’ or ‘suburban mothers:’” 74% – 2018 
    • Percentage who believe that brands should understand a “consumer’s individual situation (e.g. marital status, age, location, etc.)” when they’re being marketed to: 70% – 2018 Number who are “more annoyed” by companies now compared to 5 years ago: 40% – 2018Percentage worried their data is shared across companies without their permission: 88% – 2018Amount worried about a brand’s ability to track their behavior while on the brand’s website, app, or neither: 75% – 2018 
  • Consumers globally who expect brands to anticipate needs before they arise: 33%  – 2018 
  • Surveyed residents of the United Kingdom who identify as:
    • “Data pragmatists” willing to share personal data “under the right circumstances:” 58% – 2017
    • “Fundamentalists,” who would not share personal data for better services: 24% – 2017
    • Respondents who think data sharing is part of participating in the modern economy: 62% – 2018
    • Respondents who believe that data sharing benefits enterprises more than consumers: 75% – 2018
    • People who want more control over their data that enterprises collect: 84% – 2018
    • Percentage “unconcerned” about personal data protection: 18% – 2018
  • Percentage of Americans who think that government should do more to regulate large technology companies: 55% – 2018
  • Registered American voters who trust broadband companies with personal data “a great deal” or “a fair amount”: 43% – 2017
  • Americans who report experiencing a major data breach: 64% – 2017
  • Number of Americans who believe that their personal data is less secure than it was 5 years ago: 49% – 2019
  • Amount of surveyed American citizens who consider trust in a company an important factor for sharing data: 54% – 2018

Convenience

Microsoft’s 2015 Consumer Data Value Exchange Report attempts to understand consumer attitudes on the exchange of personal data across the global markets of Australia, Brazil, Canada, Colombia, Egypt, Germany, Kenya, Mexico, Nigeria, Spain, South Africa, United Kingdom and the United States. From their survey of 16,500 users, they find:

  • The most popular incentives for sharing data are: 
    • Cash rewards: 64% – 2015
    • Significant discounts: 49% – 2015
    • Streamlined processes: 29% – 2015
    • New ideas: 28% – 2015
  • Respondents who would prefer to see more ads to get new services: 34% – 2015
  • Respondents willing to share search terms for a service that enabled fewer steps to get things done: 70% – 2015 
  • Respondents willing to share activity data for such an improvement: 82% – 2015
  • Respondents willing to share their gender for “a service that inspires something new based on others like them:” 79% – 2015

A 2015 Pew Research Center survey presented Americans with several data-sharing scenarios related to convenience. Participants could respond: “acceptable,” “it depends,” or “not acceptable” to the following scenarios: 

  • Share health information to get access to personal health records and arrange appointments more easily:
    • Acceptable: 52% – 2015
    • It depends: 20% – 2015
    • Not acceptable: 26% – 2015
  • Share data for discounted auto insurance rates: 
    • Acceptable: 37% – 2015
    • It depends: 16% – 2015
    • Not acceptable: 45% – 2015
  • Share data for free social media services: 
    • Acceptable: 33% – 2015
    • It depends: 15% – 2015
    • Not acceptable: 51% – 2015
  • Share data on smart thermostats for cheaper energy bills: 
    • Acceptable: 33% – 2015
    • It depends: 15% – 2015
    • Not acceptable: 51% – 2015

Other Studies

  • Surveyed banking and insurance customers who would exchange personal data for:
    • Targeted auto insurance premiums: 64% – 2019
    • Better life insurance premiums for healthy lifestyle choices: 52% – 2019 
  • Surveyed banking and insurance customers willing to share data specifically related to income, location and lifestyle habits to: 
    • Secure faster loan approvals: 81.3% – 2019
    • Lower the chances of injury or loss: 79.7% – 2019 
    • Receive discounts on non-insurance products or services: 74.6% – 2019
    • Receive text alerts related to banking account activity: 59.8% – 2019 
    • Get saving advice based on spending patterns: 56.6% – 2019
  • In a survey of over 7,000 members of the public around the globe, respondents indicated:
    • They thought “smartphone and tablet apps used for navigation, chat, and news that can access your contacts, photos, and browsing history” is “creepy;” 16% – 2016
    • Emailing a friend about a trip to Paris and receiving advertisements for hotels, restaurants and excursions in Paris is “creepy:” 32% – 2016
    • A free fitness-tracking device that monitors your well-being and sends a monthly report to you and your employer is “creepy:” 45% – 2016
    • A telematics device that allows emergency services to track your vehicle is “creepy:” 78% – 2016
  • The number of British residents who do not want to work with virtual agents of any kind: 48% – 2017
  • Americans who disagree that “if companies give me a discount, it is a fair exchange for them to collect information about me without my knowing”: 91% – 2015

Data Brokers, Intermediaries, and Third Parties 

  • Americans who consider it acceptable for a grocery store to offer a free loyalty card in exchange for selling their shopping data to third parties: 47% – 2016
  • Number of people who know that “searches, site visits and purchases” are reviewed without consent:  55% – 2015
  • The number of people in 1991 who wanted companies to ask them for permission first before collecting their personal information and selling that data to intermediaries: 93% – 1991
    • Number of Americans who “would be very concerned if the company at which their data were stored sold it to another party:” 90% – 2008
    • Percentage of Americans who think it’s unacceptable for their grocery store to share their shopping data with third parties in exchange for a free loyalty card: 32% – 2016
  • Percentage of Americans who think that government needs to do more to regulate advertisers: 64% – 2016
    • Number of Americans who “want to have control over what marketers can learn about” them online: 84% – 2015
    • Percentage of Americans who think they have no power over marketers to figure out what they’re learning about them: 58% – 2015
  • Registered American voters who are “somewhat uncomfortable” or “very uncomfortable” with companies like Internet service providers or websites using personal data to recommend stories, articles, or videos:  56% – 2017
  • Registered American voters who are “somewhat uncomfortable” or “very uncomfortable” with companies like Internet service providers or websites selling their personal information to third parties for advertising purposes: 64% – 2017

Personal Health Data

The Robert Wood Johnson Foundation’s 2014 Health Data Exploration Project Report analyzes attitudes about personal health data (PHD). PHD is self-tracking data related to health that is traceable through wearable devices and sensors. The three major stakeholder groups involved in using PHD for public good are users, companies that track the users’ data, and researchers. 

  • Overall Respondents:
    • Percentage who believe anonymity is “very” or “extremely” important: 67% – 2014
    • Percentage who “probably would” or “definitely would” share their personal data with researchers: 78% – 2014
    • Percentage who believe that they own—or should own—all the data about them, even when it is indirectly collected: 54% – 2014
    • Percentage who think they share or ought to share ownership with the company: 30% – 2014
    • Percentage who think companies alone own or should own all the data about them: 4% – 2014
    • Percentage for whom data ownership “is not something I care about”: 13% – 2014
    • Percentage who indicated they wanted to own their data: 75% – 2014 
    • Percentage who would share data only if “privacy were assured:” 68% – 2014
    • People who would supply data regardless of privacy or compensation: 27% – 2014
      • Percentage of participants who mentioned privacy, anonymity, or confidentiality when asked under what conditions they would share their data:  63% – 2014
      • Percentage who would be “more” or “much more” likely to share data for compensation: 56% – 2014
      • Percentage who indicated compensation would make no difference: 38% – 2014
      • Amount opposed to commercial  or profit-making use of their data: 13% – 2014
    • Percentage of people who would only share personal health data with a guarantee of:
      • Privacy: 57% – 2014
      • Anonymization: 90% – 2014
  • Surveyed Researchers: 
    • Percentage who agree or strongly agree that self-tracking data would help provide more insights in their research: 89% – 2014
    • Percentage who say PHD could answer questions that other data sources could not: 95% – 2014
    • Percentage who have used public datasets: 57% – 2014
    • Percentage who have paid for data for research: 19% – 2014
    • Percentage who have used self-tracking data before for research purposes: 46% – 2014
    • Percentage who have worked with application, device, or social media companies: 23% – 2014
    • Percentage who “somewhat disagree” or “strongly disagree” there are barriers that cannot be overcome to using self-tracking data in their research: 82% – 2014 

SOURCES: 

“2019 Accenture Global Financial Services Consumer Study: Discover the Patterns in Personality”, Accenture, 2019. 

“Americans’ Views About Data Collection and Security”, Pew Research Center, 2015. 

“Data Donation: Sharing Personal Data for Public Good?”, ResearchGate, 2014.

“Data privacy: What the consumer really thinks,” Acxiom, 2018.

“Exclusive: Public wants Big Tech regulated”, Axios, 2018.

“Consumer data value exchange,” Microsoft, 2015.

“Crossing the Line: Staying on the right side of consumer privacy,” KPMG International Cooperative, 2016.

“How do you feel about the government sharing our personal data? – livechat”, The Guardian, 2017. 

“Personal data for public good: using health information in medical research”, The Academy of Medical Sciences, 2006. 

“Personal Data for the Public Good: New Opportunities to Enrich Understanding of Individual and Population Health”, Robert Wood Johnson Foundation, Health Data Exploration Project, Calit2, UC Irvine and UC San Diego, 2014. 

“Pew Internet and American Life Project: Cloud Computing Raises Privacy Concerns”, Pew Research Center, 2008. 

“Poll: Little Trust That Tech Giants Will Keep Personal Data Private”, Morning Consult & Politico, 2017. 

“Privacy and Information Sharing”, Pew Research Center, 2016. 

“Privacy, Data and the Consumer: What US Thinks About Sharing Data”, MarTech Advisor, 2018. 

“Public Opinion on Privacy”, Electronic Privacy Information Center, 2019. 

“Selligent Marketing Cloud Study Finds Consumer Expectations and Marketer Challenges are Rising in Tandem”, Selligent Marketing Cloud, 2018. 

“The Data-Sharing Disconnect: The Impact of Context, Consumer Trust, and Relevance in Retail Marketing,” Boxever, 2015. 

“Microsoft Research reveals understanding gap in the brand-consumer data exchange,” Microsoft Research, 2015.

“Survey: 58% will share personal data under the right circumstances”, Marketing Land: Third Door Media, 2019. 

“The state of privacy in post-Snowden America”, Pew Research Center, 2016. 

The Tradeoff Fallacy: How Marketers Are Misrepresenting American Consumers And Opening Them Up to Exploitation”, University of Pennsylvania, 2015.

Accountability in the Age of the Artificial

Curated on Posted on by Stefaan Verhulst

2019 Solomon Lecture by Fiona McLeod: “Our aspiration for open and accountable government faces innumerable challenges, not least the natural reluctance of all governments to expose themselves to criticism and accept responsibility for failure.

Time and again, corporate and political goals take priority over just outcomes, and the human rights of individuals and communities are undervalued and ignored.

Numerous examples of bad behaviour shock us for a while, some even receiving the focused attention of high quality investigative journalism and Royal Commissions, but we are left unsatisfied, cynical and disengaged, more jaded than before, accepting the inevitability of existential threats, the comfort of algorithmic news feeds and vague promises to ‘drain the swamp’.

In this context, are big data and artificial intelligence the enemies of the people, the ultimate tools of the oligarch, or the vital tools needed to eliminate bias, improve scrutiny and just outcomes for the visionary?  Is there a future in which humanity evolves alongside an enhanced hive-mind in time to avert global catastrophe and create a new vision for humanity?…(More)”

Towards “Government as a Platform”? Preliminary Lessons from Australia, the United Kingdom and the United States

Curated on Posted on by Stefaan Verhulst

Paper by J. Ramon Gil‐Garcia, Paul Henman, and Martha Alicia Avila‐Maravilla: “In the last two decades, Internet portals have been used by governments around the world as part of very diverse strategies from service provision to citizen engagement. Several authors propose that there is an evolution of digital government reflected in the functionality and sophistication of these portals and other technologies. More recently, scholars and practitioners are proposing different conceptualizations of “government as a platform” and, for some, this could be the next stage of digital government. However, it is not clear what are the main differences between a sophisticated Internet portal and a platform. Therefore, based on an analysis of three of the most advanced national portals, this ongoing research paper explores to what extent these digital efforts clearly represent the basic characteristics of platforms. So, this paper explores questions such as: (1) to what extent current national portals reflect the characteristics of what has been called “government as a platform?; and (2) Are current national portals evolving towards “government as a platform”?…(More)”.

Index: The Data Universe 2019

Curated on Posted on by Michelle Winowatan

By Michelle Winowatan, Andrew J. Zahuranec, Andrew Young, Stefaan Verhulst, Max Jun Kim

The Living Library Index – inspired by the Harper’s Index – provides important statistics and highlights global trends in governance innovation. This installment focuses on the data universe.

Please share any additional, illustrative statistics on data, or other issues at the nexus of technology and governance, with us at [email protected]

Internet Traffic:

  • Percentage of the world’s population that uses the internet: 51.2% (3.9 billion people) – 2018
  • Number of search processed worldwide by Google every year: at least 2 trillion – 2016
  • Website traffic worldwide generated through mobile phones: 52.2% – 2018
  • The total number of mobile subscriptions in the first quarter of 2019: 7.9 billion (addition of 44 million in quarter) – 2019
  • Amount of mobile data traffic worldwide: nearly 30 billion GB – 2018
  • Data category with highest traffic worldwide: video (60%) – 2018
  • Global average of data traffic per smartphone per month: 5.6 GB – 2018
    • North America: 7 GB – 2018
    • Latin America: 3.1 GB – 2018
    • Western Europe: 6.7 GB – 2018
    • Central and Eastern Europe: 4.5 GB – 2018
    • North East Asia: 7.1 GB – 2018
    • Southeast Asia and Oceania: 3.6 GB – 2018
    • India, Nepal, and Bhutan: 9.8 GB – 2018
    • Middle East and Africa: 3.0 GB – 2018
  • Time between the creation of each new bitcoin block: 9.27 minutes – 2019

Streaming Services:

  • Total hours of video streamed by Netflix users every minute: 97,222 – 2017
  • Hours of YouTube watched per day: over 1 billion – 2018
  • Number of tracks uploaded to Spotify every day: Over 20,000 – 2019
  • Number of Spotify’s monthly active users: 232 million – 2019
  • Spotify’s total subscribers: 108 million – 2019
  • Spotify’s hours of content listened: 17 billion – 2019
  • Total number of songs on Spotify’s catalog: over 30 million – 2019
  • Apple Music’s total subscribers: 60 million – 2019
  • Total number of songs on Apple Music’s catalog: 45 million – 2019

Social Media:

Calls and Messaging:

Retail/Financial Transaction:

  • Number of packages shipped by Amazon in a year: 5 billion – 2017
  • Total value of payments processed by Venmo in a year: USD 62 billion – 2019
  • Based on an independent analysis of public transactions on Venmo in 2017:
  • Based on a non-representative survey of 2,436 US consumers between the ages of 21 and 72 on P2P platforms:
    • The average volume of transactions handled by Venmo: USD 64.2 billion – 2019
    • The average volume of transactions handled by Zelle: USD 122.0 billion – 2019
    • The average volume of transactions handled by PayPal: USD 141.8 billion – 2019 
    • Platform with the highest percent adoption among all consumers: PayPal (48%) – 2019 

Internet of Things:

Sources:

Today’s Problems, Yesterday’s Toolkit

Curated on Posted on by Stefaan Verhulst

Report by Beth Noveck and Rod Glover: “Governments of all political stripes are being buffeted by technological and societal change. There is a pervasive sense globally that governments are not doing as well as they ought to solve our biggest policy problems. Pressure has intensified to provide better services and experiences, and deliver measurable results that improve people’s lives. The failure to meet our most pressing challenges help to explain why in Australia, trust in government is at an all-time low. New technologies, however, bring with them the opportunity to rethink how the public sector in Australia might solve public problems by building a workforce with diverse and innovative skills, especially how to use data and actively reach out beyond the public sector itself.

Commissioned by the Australia and New Zealand School of Government (ANZSOG), this report builds on a pioneering survey of almost 400 public servants in Australia and New Zealand, dozens of interviews with senior practitioners, and original research into how governments around the world are training public officials in innovative practices.

The survey findings show that public servants are eager to embrace skills for innovation but receive inadequate training in them….(More)”

Capturing citizen voice online: Enabling smart participatory local government

Curated on Posted on by Stefaan Verhulst

Tooran Alizadeh, Somwrita Sarkar and Sandy Burgoyne in Cities: “Social media and online communication have changed the way citizens engage in all aspects of lives from shopping and education, to how communities are planned and developed. It is no longer one-way or two- way communication. Instead, via networked all-to-all communication channels, our citizens engage on urban issues in a complex and more connected way than ever before. So government needs new ways to listen to its citizens. The paper comprises three components. Firstly, we build on the growing discussions in the literature focused on smart cities, on one hand, and social media research, on the other, to capture the diversity of citizen voices and better inform decision-making. Secondly, with the support of the Australian Federal Government and in collaboration with the local government partners, we collect citizen voices from Twitter on selected urban projects. Thirdly, we present preliminary findings in terms of quantity and quality of publicly available online data representing citizen concerns on the urban matters. By analyzing the sentiments of the citizen voices captured online, clustering them into topic areas, and then reevaluating citizen’s sentiments within each cluster, we elaborate the scope and value of technologically-enabled opportunities in terms of enabling participatory local government decision making processes….(More)”.

Companies Collect a Lot of Data, But How Much Do They Actually Use?

Curated on Posted on by Stefaan Verhulst

Article by Priceonomics Data Studio: “For all the talk of how data is the new oil and the most valuable resource of any enterprise, there is a deep dark secret companies are reluctant to share — most of the data collected by businesses simply goes unused.

This unknown and unused data, known as dark data comprises more than half the data collected by companies. Given that some estimates indicate that 7.5 septillion (7,700,000,000,000,000,000,000) gigabytes of data are generated every single day, not using  most of it is a considerable issue.

In this article, we’ll look at this dark data. Just how much of it is created by companies, what are the reasons this data isn’t being analyzed, and what are the costs and implications of companies not using the majority of the data they collect.  

Before diving into the analysis, it’s worth spending a moment clarifying what we mean by the term “dark data.” Gartner defines dark data as:

“The information assets organizations collect, process and store during regular business activities, but generally fail to use for other purposes (for example, analytics, business relationships and direct monetizing). 

To learn more about this phenomenon, Splunk commissioned a global survey of 1,300+ business leaders to better understand how much data they collect, and how much is dark. Respondents were from IT and business roles, and were located in Australia, China, France, Germany, Japan, the United States, and the United Kingdom. across various industries. For the report, Splunk defines dark data as: “all the unknown and untapped data across an organization, generated by systems, devices and interactions.”

While the costs of storing data has decreased overtime, the cost of saving septillions of gigabytes of wasted data is still significant. What’s more, during this time the strategic importance of data has increased as companies have found more and more uses for it. Given the cost of storage and the value of data, why does so much of it go unused?

The following chart shows the reasons why dark data isn’t currently being harnessed:

By a large margin, the number one reason given for not using dark data is that companies lack a tool to capture or analyze the data. Companies accumulate data from server logs, GPS networks, security tools, call records, web traffic and more. Companies track everything from digital transactions to the temperature of their server rooms to the contents of retail shelves. Most of this data lies in separate systems, is unstructured, and cannot be connected or analyzed.

Second, the data captured just isn’t good enough. You might have important customer information about a transaction, but it’s missing location or other important metadata because that information sits somewhere else or was never captured in useable format.

Additionally, dark data exists because there is simply too much data out there and a lot of is unstructured. The larger the dataset (or the less structured it is), the more sophisticated the tool required for analysis. Additionally, these kinds of datasets often time require analysis by individuals with significant data science expertise who are often is short supply. 

The implications of the prevalence are vast. As a result of the data deluge, companies often don’t know where all the sensitive data is stored and can’t be confident they are complying with consumer data protection measures like GDPR. …(More)”.

Stop the Open Data Bus, We Want to Get Off

Curated on Posted on by Stefaan Verhulst

Paper by Chris Culnane, Benjamin I. P. Rubinstein, and Vanessa Teague: “The subject of this report is the re-identification of individuals in the Myki public transport dataset released as part of the Melbourne Datathon 2018. We demonstrate the ease with which we were able to re-identify ourselves, our co-travellers, and complete strangers; our analysis raises concerns about the nature and granularity of the data released, in particular the ability to identify vulnerable or sensitive groups…..

This work highlights how a large number of passengers could be re-identified in the 2018 Myki data release, with detailed discussion of specific people. The implications of re-identification are potentially serious: ex-partners, one-time acquaintances, or other parties can determine places of home, work, times of travel, co-travelling patterns—presenting risk to vulnerable groups in particular…

In 2018 the Victorian Government released a large passenger centric transport dataset to a data science competition—the 2018 Melbourne Datathon. Access to the data was unrestricted, with a URL provided on the datathon’s website to download the complete dataset from an Amazon S3 Bucket. Over 190 teams continued to analyse the data through the 2 month competition period. The data consisted of touch on and touch off events for the Myki smart card ticketing system used throughout the state of Victoria, Australia. With such data, contestants would be able to apply retrospective analyses on an entire public transport system, explore suitability of predictive models, etc.

The Myki ticketing system is used across Victorian public transport: on trains, buses and trams. The dataset was a longitudinal dataset, consisting of touch on and touch off events from Week 27 in 2015 through to Week 26 in 2018. Each event contained a card identifier (cardId; not the actual card number), the card type, the time of the touch on or off, and various location information, for example a stop ID or route ID, along with other fields which we omit here for brevity. Events could be indexed by the cardId and as such, all the events associated with a single card could be retrieved. There are a total of 15,184,336 cards in the dataset—more than twice the 2018 population of Victoria. It appears that all touch on and off events for metropolitan trains and trams have been included, though other forms of transport such as intercity trains and some buses are absent. In total there are nearly 2 billion touch on and off events in the dataset.

No information was provided as to the de-identification that was performed on the dataset. Our analysis indicates that little to no de-identification took place on the bulk of the data, as will become evident in Section 3. The exception is the cardId, which appears to have been mapped in some way from the Myki Card Number. The exact mapping has not been discovered, although concerns remain as to its security effectiveness….(More)”.