Tag Archives: Source

Rapidly Verifying the Credibility of Information Sources on Twitter

One of the advantages of working at QCRI is that I’m regularly exposed to peer-reviewed papers presented at top computing conferences. This is how I came across an initiative called “Seriously Rapid Source Review” or SRSR. As many iRevolution readers know, I’m very interested in information forensics as applied to crisis situations. So SRSR certainly caught my attention.

The team behind SRSR took a human centered design approach in order to integrate journalistic practices within the platform. There are four features worth noting in this respect. The first feature to note in the figure below is the automated filter function, which allows one to view tweets generated by “Ordinary People,” “Journalists/Bloggers,” “Organizations,” “Eyewitnesses” and “Uncategorized.” The second feature, Location, “shows a set of pie charts indica-ting the top three locations where the user’s Twitter contacts are located. This cue provides more location information and indicates whether the source has a ‘tie’ or other personal interest in the location of the event, an aspect of sourcing exposed through our preliminary interviews and suggested by related work.”

The third feature worth noting is the “Eyewitness” icon. The SRSR team developed the first ever automatic classifier to identify eyewitness reports shared on Twitter. My team and I at QCRI are developing a second one that focuses specifically on automatically classifying eyewitness reports during sudden-onset natural disasters. The fourth feature is “Entities,” which displays the top five entities that the user has mentioned in their tweet history. These include references to organizations, people and places, which can reveal important patterns about the twitter user in question.

Journalists participating in this applied research found the “Location” feature particularly important when assess the credibility of users on Twitter. They noted that “sources that had friends in the location of the event were more believable, indicating that showing friends’ locations can be an indicator of credibility.” One journalist shared the following: “I think if it’s someone without any friends in the region that they’re tweeting about then that’s not nearly as authoritative, whereas if I find somebody who has 50% of friends are in [the disaster area], I would immediately look at that.”

In addition, the automatic identification of “eyewitnesses” was deemed essential by journalists who participated in the SRSR study. This should not be surprising since “news organizations often use eyewitnesses to add credibility to reports by virtue of the correspondent’s on-site proximity to the event.” Indeed, “Witness-ing and reporting on what the journalist had witnessed have long been seen as quintessential acts of journalism.” To this end, “social media provides a platform where once passive witnesses can become active and share their eyewitness testimony with the world, including with journalists who may choose to amplify their report.”

In sum, SRSR could be used to accelerate the verification of social media con-tent, i.e., go beyond source verification alone. For more on SRSR, please see this computing paper (PDF), which was authored by Nicholas Diakopoulos, Munmun De Choudhury and Mor Naaman.

Google Inc + World Bank = Empowering Citizen Cartographers?

World Bank Managing Director Caroline Anstey recently announced a new partnership with Google that will apparently empower citizen cartographers in 150 countries worldwide. This has provoked some concern among open source enthusiasts. Under this new agreement, the Bank, UN agencies and developing country governments will be able to “access Google Map Maker’s global mapping platform, allowing the collection, viewing, search and free access to data of geoinformation in over 150 countries and 60 languages.”

So what’s the catch? Google’s licensing agreement for Google Map Maker stipulates the following: Users are not allowed to access Google Map Maker data via any platform other than those designated by Google. Users are not allowed to make any copies of the data, nor can they translate the data, modify it or create a derivative of the data. In addition, users cannot publicly display any Map Maker data for commercial purposes. Finally, users cannot use Map Maker data to create a service that is similar to any already provided by Google.

There’s a saying in the tech world that goes like this: “If the product is free, then you are the product.” I fear this may be the case with the Google-Bank partnership. I worry that Google will organize more crowdsourced mapping projects (like the one they did for Sudan last year), and use people with local knowledge to improve Map Maker data, which will carry all the licensing restrictions described above. Does this really empower citizen cartographers?

Or is this about using citizen cartographers (as free labor?) for commercial purposes? Will Google push Map Maker data to Google Maps & Google Earth products, i.e., expanding market share & commercial interests? Contrast this with the World Bank’s Open Data for Resilience Initiative (OpenDRI), which uses open source software and open data to empower local communities and disaster risk managers. Also, the Google-Bank partnership is specifically with UN agencies and governments, not exactly citizens or NGOs.

Caroline Anstey concludes her announcement with the following:

“In the 17th century, imperial cartographers had an advantage over local communities. They could see the big picture. In the 21st century, the tables have turned: local communities can make the biggest on the ground difference. Crowdsourced citizen cartographers can help make it happen.”

 Here’s another version:

“In the 21st century, for-profit companies like Google Inc have an advantage over local communities. They can use big license restrictions. With the Google-Bank partnership, Google can use local communities to collect information for free and make the biggest profit. Crowdsourced citizen cartographers can help make it happen.”

The Google-Bank partnership points to another important issue being ignored in this debate. Let’s not pretend that technology alone determines whether participatory mapping truly empowers local communities. I recently learned of an absolutely disastrous open source “community” mapping project in Africa which should one day should be written up in a blog post entitled “Open Source Community Mapping #FAIL”.

So software developers (whether from the open source or proprietary side) who want to get involved in community mapping and have zero experience in participatory GIS, local development and capacity building should think twice: the “do no harm” principle also applies to them. This is equally true of Google Inc. The entire open source mapping community will be watching every move they make on this new World Bank partnership.

I do hope Google eventually realizes just how much of an opportunity they have to do good with this partnership. I am keeping my fingers crossed that they will draft a separate licensing agreement for the World Bank partnership. In fact, I hope they openly invite the participatory GIS and open source mapping communities to co-draft an elevated licensing agreement that will truly empower citizen cartographers. Google would still get publicity—and more importantly positive publicity—as a result. They’d still get the data and have their brand affiliated with said data. But instead of locking up the Map Maker data behind bars and financially profiting from local communities, they’d allow citizens themselves to use the data in whatever platform they so choose to improve citizen feedback in project planning, implementation and monitoring & evaluation. Now wouldn’t that be empowering?