Big Data. Big Obstacles.

Curated on Posted on by Stefaan Verhulst

Dalton Conley et al. in the Chronicle of Higher Education: “After decades of fretting over declining response rates to traditional surveys (the mainstay of 20th-century social research), an exciting new era would appear to be dawning thanks to the rise of big data. Social contagion can be studied by scraping Twitter feeds; peer effects are tested on Facebook; long-term trends in inequality and mobility can be assessed by linking tax records across years and generations; social-psychology experiments can be run on Amazon’s Mechanical Turk service; and cultural change can be mapped by studying the rise and fall of specific Google search terms. In many ways there has been no better time to be a scholar in sociology, political science, economics, or related fields.

However, what should be an opportunity for social science is now threatened by a three-headed monster of privatization, amateurization, and Balkanization. A coordinated public effort is needed to overcome all of these obstacles.

While the availability of social-media data may obviate the problem of declining response rates, it introduces all sorts of problems with the level of access that researchers enjoy. Although some data can be culled from the web—Twitter feeds and Google searches—other data sit behind proprietary firewalls. And as individual users tune up their privacy settings, the typical university or independent researcher is increasingly locked out. Unlike federally funded studies, there is no mandate for Yahoo or Alibaba to make its data publicly available. The result, we fear, is a two-tiered system of research. Scientists working for or with big Internet companies will feast on humongous data sets—and even conduct experiments—and scholars who do not work in Silicon Valley (or Alley) will be left with proverbial scraps….

To address this triple threat of privatization, amateurization, and Balkanization, public social science needs to be bolstered for the 21st century. In the current political and economic climate, social scientists are not waiting for huge government investment like we saw during the Cold War. Instead, researchers have started to knit together disparate data sources by scraping, harmonizing, and geo­coding any and all information they can get their hands on.

Currently, many firms employ some well-trained social and behavioral scientists free to pursue their own research; likewise, some companies have programs by which scholars can apply to be in residence or work with their data extramurally. However, as Facebook states, its program is “by invitation only and requires an internal Facebook champion.” And while Google provides services like Ngram to the public, such limited efforts at data sharing are not enough for truly transparent and replicable science….(More)”

 

Platforms connect talented Instagrammers with good causes

Curated on Posted on by Stefaan Verhulst

Springwise: “….a number of charities using social media campaigns to spread awareness about their causes. Only last week we covered the #EndangeredEmoji campaign from WWF, which uses Twitter and emojis to highlight the plight of seventeen endangered species. Now, two startups — Gramforacause and Gramming For Good — are turning to the photocentric platform Instagram to connect photographers with non-profits, helping spread the word about their causes through social photography.

Each startup curates a service tailored to the needs of the nonprofit — whether that be providing photos to populate the feed, an Instagram takeover or simply spreading the word on a photographer’s own account. When matching a photographer, both companies consider preferred photography type — phone, DSLR or film — their expected rate of pay and where their passions lie….

Website: www.grammingforgood.com & www.gramforacause.com “

Selected Readings on Data Governance

Curated on Posted on by Jos Berens

Jos Berens (Centre for Innovation, Leiden University) and Stefaan G. Verhulst (GovLab)

The Living Library’s Selected Readings series seeks to build a knowledge base on innovative approaches for improving the effectiveness and legitimacy of governance. This curated and annotated collection of recommended works on the topic of data governance was originally published in 2015.

Context
The field of Data Collaboratives is premised on the idea that sharing and opening-up private sector datasets has great – and yet untapped – potential for promoting social good. At the same time, the potential of data collaboratives depends on the level of societal trust in the exchange, analysis and use of the data exchanged. Strong data governance frameworks are essential to ensure responsible data use. Without such governance regimes, the emergent data ecosystem will be hampered and the (perceived) risks will dominate the (perceived) benefits. Further, without adopting a human-centered approach to the design of data governance frameworks, including iterative prototyping and careful consideration of the experience, the responses may fail to be flexible and targeted to real needs.

Selected Readings List (in alphabetical order)

Annotated Selected Readings List (in alphabetical order)

Better Place Lab, “Privacy, Transparency and Trust.” Mozilla, 2015. Available from: http://www.betterplace-lab.org/privacy-report.

  • This report looks specifically at the risks involved in the social sector having access to datasets, and the main risks development organizations should focus on to develop a responsible data use practice.
  • Focusing on five specific countries (Brazil, China, Germany, India and Indonesia), the report displays specific country profiles, followed by a comparative analysis centering around the topics of privacy, transparency, online behavior and trust.
  • Some of the key findings mentioned are:
    • A general concern on the importance of privacy, with cultural differences influencing conception of what privacy is.
    • Cultural differences determining how transparency is perceived, and how much value is attached to achieving it.
    • To build trust, individuals need to feel a personal connection or get a personal recommendation – it is hard to build trust regarding automated processes.

Montjoye, Yves Alexandre de; Kendall, Jake and; Kerry, Cameron F. “Enabling Humanitarian Use of Mobile Phone Data.” The Brookings Institution, 2015. Available from: http://www.brookings.edu/research/papers/2014/11/12-enabling-humanitarian-use-mobile-phone-data.

  • Focussing in particular on mobile phone data, this paper explores ways of mitigating privacy harms involved in using call detail records for social good.
  • Key takeaways are the following recommendations for using data for social good:
    • Engaging companies, NGOs, researchers, privacy experts, and governments to agree on a set of best practices for new privacy-conscientious metadata sharing models.
    • Accepting that no framework for maximizing data for the public good will offer perfect protection for privacy, but there must be a balanced application of privacy concerns against the potential for social good.
    • Establishing systems and processes for recognizing trusted third-parties and systems to manage datasets, enable detailed audits, and control the use of data so as to combat the potential for data abuse and re-identification of anonymous data.
    • Simplifying the process among developing governments in regards to the collection and use of mobile phone metadata data for research and public good purposes.

Centre for Democracy and Technology, “Health Big Data in the Commercial Context.” Centre for Democracy and Technology, 2015. Available from: https://cdt.org/insight/health-big-data-in-the-commercial-context/.

  • Focusing particularly on the privacy issues related to using data generated by individuals, this paper explores the overlap in privacy questions this field has with other data uses.
  • The authors note that although the Health Insurance Portability and Accountability Act (HIPAA) has proven a successful approach in ensuring accountability for health data, most of these standards do not apply to developers of the new technologies used to collect these new data sets.
  • For non-HIPAA covered, customer facing technologies, the paper bases an alternative framework for consideration of privacy issues. The framework is based on the Fair Information Practice Principles, and three rounds of stakeholder consultations.

Center for Information Policy Leadership, “A Risk-based Approach to Privacy: Improving Effectiveness in Practice.” Centre for Information Policy Leadership, Hunton & Williams LLP, 2015. Available from: https://www.informationpolicycentre.com/uploads/5/7/1/0/57104281/white_paper_1-a_risk_based_approach_to_privacy_improving_effectiveness_in_practice.pdf.

  • This white paper is part of a project aiming to explain what is often referred to as a new, risk-based approach to privacy, and the development of a privacy risk framework and methodology.
  • With the pace of technological progress often outstripping the capabilities of privacy officers to keep up, this method aims to offer the ability to approach privacy matters in a structured way, assessing privacy implications from the perspective of possible negative impact on individuals.
  • With the intended outcomes of the project being “materials to help policy-makers and legislators to identify desired outcomes and shape rules for the future which are more effective and less burdensome”, insights from this paper might also feed into the development of innovative governance mechanisms aimed specifically at preventing individual harm.

Centre for Information Policy Leadership, “Data Governance for the Evolving Digital Market Place”, Centre for Information Policy Leadership, Hunton & Williams LLP, 2011. Available from: http://www.huntonfiles.com/files/webupload/CIPL_Centre_Accountability_Data_Governance_Paper_2011.pdf.

  • This paper argues that as a result of the proliferation of large scale data analytics, new models governing data inferred from society will shift responsibility to the side of organizations deriving and creating value from that data.
  • It is noted that, with the reality of the challenge corporations face of enabling agile and innovative data use “In exchange for increased corporate responsibility, accountability [and the governance models it mandates, ed.] allows for more flexible use of data.”
  • Proposed as a means to shift responsibility to the side of data-users, the accountability principle has been researched by a worldwide group of policymakers. Tailing the history of the accountability principle, the paper argues that it “(…) requires that companies implement programs that foster compliance with data protection principles, and be able to describe how those programs provide the required protections for individuals.”
  • The following essential elements of accountability are listed:
    • Organisation commitment to accountability and adoption of internal policies consistent with external criteria
    • Mechanisms to put privacy policies into effect, including tools, training and education
    • Systems for internal, ongoing oversight and assurance reviews and external verification
    • Transparency and mechanisms for individual participation
    • Means of remediation and external enforcement

Crawford, Kate; Schulz, Jason. “Big Data and Due Process: Toward a Framework to Redress Predictive Privacy Harm.” NYU School of Law, 2014. Available from: http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2325784&download=yes.

  • Considering the privacy implications of large-scale analysis of numerous data sources, this paper proposes the implementation of a ‘procedural data due process’ mechanism to arm data subjects against potential privacy intrusions.
  • The authors acknowledge that some privacy protection structures already know similar mechanisms. However, due to the “inherent analytical assumptions and methodological biases” of big data systems, the authors argue for a more rigorous framework.

Letouze, Emmanuel, and; Vinck, Patrick. “The Ethics and Politics of Call Data Analytics”, DataPop Alliance, 2015. Available from: http://static1.squarespace.com/static/531a2b4be4b009ca7e474c05/t/54b97f82e4b0ff9569874fe9/1421442946517/WhitePaperCDRsEthicFrameworkDec10-2014Draft-2.pdf.

  • Focusing on the use of Call Detail Records (CDRs) for social good in development contexts, this whitepaper explores both the potential of these datasets – in part by detailing recent successful efforts in the space – and political and ethical constraints to their use.
  • Drawing from the Menlo Report Ethical Principles Guiding ICT Research, the paper explores how these principles might be unpacked to inform an ethics framework for the analysis of CDRs.

Data for Development External Ethics Panel, “Report of the External Ethics Review Panel.” Orange, 2015. Available from: http://www.d4d.orange.com/fr/content/download/43823/426571/version/2/file/D4D_Challenge_DEEP_Report_IBE.pdf.

  • This report presents the findings of the external expert panel overseeing the Orange Data for Development Challenge.
  • Several types of issues faced by the panel are described, along with the various ways in which the panel dealt with those issues.

Federal Trade Commission Staff Report, “Mobile Privacy Disclosures: Building Trust Through Transparency.” Federal Trade Commission, 2013. Available from: www.ftc.gov/os/2013/02/130201mobileprivacyreport.pdf.

  • This report looks at ways to address privacy concerns regarding mobile phone data use. Specific advise is provided for the following actors:
    • Platforms, or operating systems providers
    • App developers
    • Advertising networks and other third parties
    • App developer trade associations, along with academics, usability experts and privacy researchers

Mirani, Leo. “How to use mobile phone data for good without invading anyone’s privacy.” Quartz, 2015. Available from: http://qz.com/398257/how-to-use-mobile-phone-data-for-good-without-invading-anyones-privacy/.

  • This paper considers the privacy implications of using call detail records for social good, and ways to mitigate risks of privacy intrusion.
  • Taking example of the Orange D4D challenge and the anonymization strategy that was employed there, the paper describes how classic ‘anonymization’ is often not enough. The paper then lists further measures that can be taken to ensure adequate privacy protection.

Bernholz, Lucy. “Several Examples of Digital Ethics and Proposed Practices” Stanford Ethics of Data conference, 2014, Available from: http://www.scribd.com/doc/237527226/Several-Examples-of-Digital-Ethics-and-Proposed-Practices.

  • This list of readings prepared for Stanford’s Ethics of Data conference lists some of the leading available literature regarding ethical data use.

Abrams, Martin. “A Unified Ethical Frame for Big Data Analysis.” The Information Accountability Foundation, 2014. Available from: http://www.privacyconference2014.org/media/17388/Plenary5-Martin-Abrams-Ethics-Fundamental-Rights-and-BigData.pdf.

  • Going beyond privacy, this paper discusses the following elements as central to developing a broad framework for data analysis:
    • Beneficial
    • Progressive
    • Sustainable
    • Respectful
    • Fair

Lane, Julia; Stodden, Victoria; Bender, Stefan, and; Nissenbaum, Helen, “Privacy, Big Data and the Public Good”, Cambridge University Press, 2014. Available from: http://www.dataprivacybook.org.

  • This book treats the privacy issues surrounding the use of big data for promoting the public good.
  • The questions being asked include the following:
    • What are the ethical and legal requirements for scientists and government officials seeking to serve the public good without harming individual citizens?
    • What are the rules of engagement?
    • What are the best ways to provide access while protecting confidentiality?
    • Are there reasonable mechanisms to compensate citizens for privacy loss?

Richards, Neil M, and; King, Jonathan H. “Big Data Ethics”. Wake Forest Law Review, 2014. Available from: http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2384174.

  • This paper describes the growing impact of big data analytics on society, and argues that because of this impact, a set of ethical principles to guide data use is called for.
  • The four proposed themes are: privacy, confidentiality, transparency and identity.
  • Finally, the paper discusses how big data can be integrated into society, going into multiple facets of this integration, including the law, roles of institutions and ethical principles.

OECD, “OECD Guidelines on the Protection of Privacy and Transborder Flows of Personal Data”. Available from: http://www.oecd.org/sti/ieconomy/oecdguidelinesontheprotectionofprivacyandtransborderflowsofpersonaldata.htm.

  • A globally used set of principles to inform thought about handling personal data, the OECD privacy guidelines serve as one the leading standards for informing privacy policies and data governance structures.
  • The basic principles of national application are the following:
    • Collection Limitation Principle
    • Data Quality Principle
    • Purpose Specification Principle
    • Use Limitation Principle
    • Security Safeguards Principle
    • Openness Principle
    • Individual Participation Principle
    • Accountability Principle

The White House Big Data and Privacy Working Group, “Big Data: Seizing Opportunities, Preserving Values”, White House, 2015. Available from: https://www.whitehouse.gov/sites/default/files/docs/big_data_privacy_report_5.1.14_final_print.pdf.

  • Documenting the findings of the White House big data and privacy working group, this report lists i.a. the following key recommendations regarding data governance:
    • Bringing greater transparency to the data services industry
    • Stimulating international conversation on big data, with multiple stakeholders
    • With regard to educational data: ensuring data is used for the purpose it is collected for
    • Paying attention to the potential for big data to facilitate discrimination, and expanding technical understanding to stop discrimination

William Hoffman, “Pathways for Progress” World Economic Forum, 2015. Available from: http://www3.weforum.org/docs/WEFUSA_DataDrivenDevelopment_Report2015.pdf.

  • This paper treats i.a. the lack of well-defined and balanced governance mechanisms as one of the key obstacles preventing particularly corporate sector data from being shared in a controlled space.
  • An approach that balances the benefits against the risks of large scale data usage in a development context, building trust among all stake holders in the data ecosystem, is viewed as key.
  • Furthermore, this whitepaper notes that new governance models are required not just by the growing amount of data and analytical capacity, and more refined methods for analysis. The current “super-structure” of information flows between institutions is also seen as one of the key reasons to develop alternatives to the current – outdated – approaches to data governance.

The Future of Citizen Engagement: five trends transforming government

Curated on Posted on by Stefaan Verhulst

Catherine Andrews at GovLoop: “Every year, citizen engagement seems to improve. New technologies are born; new innovations connect citizens with the government; new ideas start to take root.

It’s 2015, and citizen engagement has gone far beyond basic social media and town halls. As we make our way through the 21st century, citizen engagement is continuing to evolve. New platforms and concepts such as geographic information systems (GIS), GitHub, open data, human-centered design and novel uses of social media have challenged the traditional notions of citizen engagement and pushed government into uncharted territories. As citizens become more tech-savvy, this growth is only continuing.

This GovLoop guide will dive into five of the latest and newest trends in citizen engagement. From the customer experience to the Internet of Things, we’ll highlight the most innovative ways federal, state and local governments are connecting with citizens….(More)”

Citizen Engagement through ICT

Curated on Posted on by Stefaan Verhulst

AGORA Brief – May 2015: “Communication has come a long way in recent years.  The ‘90s brought us the first widely available internet browser (1993) and the first mobile phone with an internet connection (1996).  The past decade saw the evolution of these tools into new digital networks and resources: FlickR and Facebook in 2004; Youtube in 2005, and Twitter in 2006. Today, 10% of the world’s population has a fixed internet subscription and almost 30% has a mobile subscription, with the figures doubling in developed countries. Additionally, there are now 7.1 billion mobile phones and 1.9 billion smartphones with an internet subscription (ITU figures).

Parliaments around the world have embraced ICT and other new technologies at varying rates, and to varying degrees of success. The great majority of legislatives now have a website and many of them are active on social media networks. Some have gone further still, piloting mobile constituency offices, virtual hearings and a whole range of digital platforms designed to improve communication between citizens and their representatives.  Yet, countless opportunities for better use of these technologies go unexplored.

This brief illustrates how new technologies can better connect parliament with the people it represents.  It discusses the use of ICT in administration, the adoption of social media, the development of citizen engagement platforms and the strategies employed by parliamentary monitoring organisations.  It also offers suggestions on how to keep costs down and mobilise support. …(More)”

Digital Democracy

Curated on Posted on by Stefaan Verhulst

“Digital Democracy is a product of the Institute for Advanced Technology and Public Policy. The new online platform features a searchable database of California state legislative committees hearings, allowing the user to search videos by keyword, topic, speaker or date. Digital Democracy is a first of its kind tool because it will transcribe all legislative hearing videos and will make the transcriptions available to users in their searchable entirety. These data rich transcripts represent an entirely new data set that is currently unavailable to the public. Additionally, sophisticated meta tags attached to the transcripts will enable users to run in depth analytics to identify trends and relationships. A robust database of all speakers will track individual participants’ testimony, positions, and donation and gift histories.

This project is pushing beyond the technical challenges of providing mere access to information, instead focusing on how this new data set can be meaningfully interpreted and acted upon. Tools within the system will allow a user to quickly and easily search, locate, view, clip, and share this information and opinions on Facebook, Twitter, YouTube, Google+, and other social media platforms. The video clips will provide dynamic content for grassroots mobilizers, online media outlets, bloggers, professional associations, and government watchdogs.

Digital Democracy has been deployed as a one year beta to provide searchable video files of available California state committee hearings for the 2015 legislative year….(More)”

Cops Increasingly Use Social Media to Connect, Crowdsource

Curated on Posted on by Stefaan Verhulst

Sara E. Wilson at GovTech: “Law enforcement has long used public tip lines and missing persons bulletins to recruit citizens in helping solve crime and increasing public safety. Though the need for police departments to connect with their communities is nothing new, the array of technologies available to do so is growing all the time — as are the ways in which departments use those technologies.

In fact, 81 percent of law enforcement professionals use sites such as Facebook and Twitter on the job. And 25 percent use it daily.

Much of law enforcement is crowdsourced — Amber alerts are pushed to smartphones, seeking response from citizens; officers push wanted information and crime tips to users on Facebook and Twitter in the hopes they can help; and some departments create apps to streamline the information sharing.

Take the Johns Creek, Ga., Police Department, which has deployed a tool that allows additional citizen engagement and crowdsourcing…..Using a mobile app — the SunGard Public Sector P2C Converge app, which is branded specifically for Johns Creek PD as JCPD4Me — the department can more smoothly manage public safety announcements and other social media interactions….

Another tool cops use for communicating with citizens is Nixle, which lets agencies publish alerts, advisories, community information and traffic news. Citizens register for free and receive credible, neighborhood-level public safety information via text message and email in real time.

The Oakland, Calif., Police Department (OPD) uses the platform to engage with citizens — an April 17, 2015 post on Oakland PD’s Nixle Community feed informs readers that the department’s Special Victims Section, which is working to put an end to sex trafficking in the city, arrested five individuals for solicitation of prostitution. Since Jan. 1, 2015, OPD has arrested 70 individuals from 27 cities across the state for solicitation of prostitution.

Nixle allows two-way communication as well — the Tip Watch function allows anonymous tipsters to send information to Oakland PD in three ways (text, phone, Web). Now OPD can issue a passcode to tipsters for two-way, anonymous communication to help gather more information.

On the East Coast, the Peabody, Mass., Police Department has used the My Police Department (MyPD) app by WiredBlue, which lets citizens submit tips and feedback directly to the department, since its creation….

During the high-profile manhunt for the Boston Marathon bombers in 2013, the FBI asked the public for eyewitness photo and video evidence. The response from the public was so overwhelming that the server infrastructure couldn’t handle the massive inflow of data.

This large-scale crowdsourcing and data dilemma inspired a new product: the Los Angeles Sheriff’s Department’s Large Emergency Event Digital Information Repository (LEEDIR). Developed by CitizenGlobal Inc. and Amazon Web Services, LEEDIR pairs an app with cloud storage to help police use citizens’ smartphones as tools to gather and investigate evidence. Since its creation, the repository was used in Santa Barbara, Calif., in 2014 to investigate riots in Isla Vista.

Proponents of LEEDIR say the crowdsourcing system gives authorities a secure, central repository for the countless electronic tips that can come in during a crisis. Critics, however, claim that privacy issues come into play with this kind of policing. …(More)”

The Incredible Jun: A Town that Runs on Social Media

Curated on Posted on by Stefaan Verhulst

Deb Roy and William Powers in the Huffington Post: “For the last four years, a town in southern Spain has been conducting a remarkable experiment in civic life. Jun (pronounced “hoon”) has been using Twitter as its principal medium for citizen-government communication. Leading the effort is Jun’s Mayor, José Antonio Rodríguez Salas, a passionate believer in the power of technology to solve problems and move society forward.

Since launching the initiative in 2011, Rodríguez Salas has been recruiting his 3,500 townspeople to not only join the social network but have their Twitter accounts locally verified at town hall. This extra step isn’t necessary to participate in the conversation – Twitter is open to anyone – but it helps town employees know they’re dealing with actual residents.

In the most basic scenario, a citizen who has a question, request or complaint tweets it to the mayor or one of his staff, who work to resolve the matter. For instance, in the sequence of tweets shown below (which we pulled from the 2014 Twitter data and translated into English), at 10:48 pm a citizen tells the mayor that a street lamp is out on Maestro Antonio Linares Street. Nine minutes later, the mayor replies that he’ll have the town electrician fix it the next day. The mayor’s tweet includes the Twitter handle of the electrician, who is automatically notified that he’s been mentioned and sees the exchange. That tweet is a public promise that the town will indeed take action, and to underline this it ends with the hashtag #JunGetsMoving. The next day, the electrician tweets a photo of the repaired fixture, thanking the citizen for his help and repeating the hashtag.

A citizen alerts the mayor to a broken street lamp. Two tweets later, it’s fixed.

Governments have been responding to citizens for centuries. But digital networks have made it possible to build much faster, more efficient feedback loops. Each of the participants in the above transaction wrote a single text of less than 140 characters, and in less than 24 hours the problem was solved….(More)”

Data Fusion Heralds City Attractiveness Ranking

Curated on Posted on by Stefaan Verhulst

Emerging Technology From the arXiv: “The ability of any city to attract visitors is an important metric for town planners, businesses based on tourism, traffic planners, residents, and so on. And there are increasingly varied ways of measuring this thanks to the growing volumes of city-related data generated by with social media, and location-based data.

So it’s only natural that researchers would like to draw these data sets together to see what kind of insight they can get from this form of data fusion.

And so it has turned out thanks to the work of Stanislav Sobolevsky at MIT and a few buddies. These guys have fused three wildly different data sets related to the attractiveness of a city that allows them to rank these places and to understand why people visit them and what they do when they get there.

The work focuses exclusively on cities in Spain using data that is relatively straightforward to gather. The first data set consists of the number of credit and debit card transactions carried out by visitors to cities throughout Spain during 2011. This includes each card’s country of origin, which allows Sobolevsky and co to count only those transactions made by foreign visitors—a total of 17 million anonymized transactions from 8.6 million foreign visitors from 175 different countries.

The second data set consists of over 3.5 million photos and videos taken in Spain and posted to Flickr by people living in other countries. These pictures were taken between 2005 and 2014 by 16,000 visitors from 112 countries.

The last data set consists of around 700,000 geotagged tweets posted in Spain during 2012. These were posted by 16,000 foreign visitors from 112 countries.

Finally, the team defined a city’s attractiveness, at least for the purposes of this study, as the total number of pictures, tweets and card transactions that took place within it……

That’s interesting work that shows how the fusion of big data sets can provide insights into the way people use cities.   It has its limitations of course. The study does not address the reasons why people find cities attractive and what draws them there in the first place. For example, are they there for tourism, for business, or for some other reason. That would require more specialized data.

But it does provide a general picture of attractiveness that could be a start for more detailed analyses. As such, this work is just a small part of a new science of cities based on big data, but one that shows how much is becoming possible with just a little number crunching.

Ref: arxiv.org/abs/1504.06003 : Scaling of city attractiveness for foreign visitors through big data of human economic and social media activity”

A sentiment analysis of U.S. local government tweets: The connection between tone and citizen involvement

Curated on Posted on by Stefaan Verhulst

Paper by Staci M. Zavattaro, P. Edward French, and Somya D. Mohanty: “As social media tools become more popular at all levels of government, more research is needed to determine how the platforms can be used to create meaningful citizen–government collaboration. Many entities use the tools in one-way, push manners. The aim of this research is to determine if sentiment (tone) can positively influence citizen participation with government via social media. Using a systematic random sample of 125 U.S. cities, we found that positive sentiment is more likely to engender digital participation but this was not a perfect one-to-one relationship. Some cities that had an overall positive sentiment score and displayed a participatory style of social media use did not have positive citizen sentiment scores. We argue that positive tone is only one part of a successful social media interaction plan, and encourage social media managers to actively manage platforms to use activities that spur participation….(More)”