nels. “Real-Time Prediction of Online False Information Purveyors and their Characteristics,” is a working paper co-authored by Anil R. Doshi (UCL School of Management), Sharat Ra- ghavan (University of California, Berk- ley) and William Schmidt (Cornell Uni- versity). To counter the proliferation of false in- formation it is important to move fast, before the creators of the information begin to post and broadcast false in- formation across multiple channels. Anil Doshi and his fellow academics set out to develop an early detection system to highlight domains that were most likely to be bad actors. Details contained in the registration informa- tion, for example, whether the regis- tering party is kept private, are used to identify the sites.
Anil Doshi, Assistant Professor for the UCL School of Management comment- ed: “Many models that predict false in- formation use the content of articles or behaviours on social media channels to make their predictions. By the time that data is available, it may be too
Deployments Nexxis digital OR enriched with flexible 3D imaging
Hospitals with Nexxis OR-over-IP now have access to high-quality 3D imag- ing for their interventional surgeries. Barco, global leader in visualization technology, has enhanced Nexxis to show and share 3D images in the op- eration room. A new 3D surgical dis- play can be integrated into new and existing Nexxis configurations. Complex, minimally invasive surgi- cal interventions will typically benefit from 3D imaging and visualization. Minimally invasive surgeries today are mainly performed with a 2D endoscop- ic camera, leaving the surgeon with limited immediate depth perception. 3D imaging solves this issue. Given that surgical teams rely on the camera, the display(s) and the real-time quality of the video stream, it is critical that the same video per- formance capabilities guaranteed in a Nexxis installation, are maintained when integrating a 3D display in the
system. With the Nexxis 1.17 update, all new and exist- ing Nexxis configurations are upgraded to support 3D imaging. Up to today, 3D sources could not be integrated into digital ORs. Nexxis 1.17 solves this in a flexible way: 3D sources come with all possibilities traditionally available for 2D sources, so the OR staff can use
them the same way as they are used to. For example, they share their imag- es between ORs, and they can also be streamed or recorded.
Nexxis also automatically switches between 2D and 3D modes, adapting images to the capabilities of each dis- play in the operating room. As such, the OR staff has the best suitable for- mats at their disposal.
late. These producers are nimble and we need a way to identify them early. By using domain registration data, we can provide an early warning system using data that is arguably difficult for the actors to manipulate. Actors who produce false information tend to pre- fer remaining hidden and we use that in our model.”
By applying a machine-learning mod- el to domain registration data, the tool was able to correctly identify 92 per- cent of the false information domains and 96.2 percent of the non-false in- formation domains set up in relation to the 2016 US election before they started operations.
Doshi and his co-authors propose that their tool should be used to help reg- ulators, platforms, and policy makers proceed with an escalated process in order to increase monitoring, send warnings or sanction them, and de- cide ultimately, whether they should be shut down. The academics behind the research also call for social media companies to invest more effort and money into addressing this problem
which is largely facilitated by their platforms.
Doshi continued “Fake news which is promoted by social media is common in elections and it continues to pro- liferate in spite of the somewhat lim- ited efforts social media companies and governments to stem the tide and defend against it. Our concern is that this is just the start of the journey. We need to recognise that it is only a mat- ter of time before these tools are rede- ployed on a more widespread basis to target companies, indeed there is ev- idence of this already happening. So- cial media companies and regulators need to be more engaged in dealing with this very real issue and corporates need to have a plan in place to quickly identify when they become the target of this type of campaign.”
The research is ongoing in recogni- tion that the environment is constantly evolving and while the tool works well now, the bad actors will respond to it. This underscores the need for constant and ongoing innovation and research in this area.
Barco’s Nexxis digital OR helps build the operating room of the future at AZ Maastricht hospital (the Netherlands). Installed in the hospital’s first hybrid op- erating room, Nexxis proved to best meet the complex imaging needs within this innovative OR environment.
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