Paul Taylor is professor of health informatics at UCL.
The conventional way of writing, say, a chess program has been to identify and encode the principles underpinning sound play. That isn’t the way DeepMind’s software works. DQN doesn’t know how to repel an invasion. It doesn’t know that the electronic signals it is processing depict aliens. DeepMind searches the game data for correlations, which it interprets as significant features.
‘Around 6000 people lose their lives every year because we do not have a proper seven-day service in hospitals,’ Jeremy Hunt said on 16 July 2015. ‘You are 15 per cent more likely to die if you are admitted on a Sunday compared to being admitted on a Wednesday.’ A Department of Health statement later clarified that the figures came from an analysis ‘soon to be published in the BMJ’. Nick Freemantle, a professor of epidemiology at UCL, had been invited by Bruce Keogh, the chief medical officer, to update a 2012 analysis of hospital data, apparently on the suggestion of Simon Stevens, the new chief executive of NHS England. The resulting paper wasn’t accepted by the BMJ until 29 July, after Hunt’s speech. When it appeared in September, it contained no reference to the 6000 figure.
London’s two velodromes were built in the 19th and 21st centuries. The indoor track at the Lee Valley Velodrome, one of the fastest in the world, is housed in a beautiful stadium built at cost of £94 million. Its distinctive roof, a hyperbolic paraboloid clad in 5000m2 of custom-cut Western red cedar, is a prominent landmark at the edge of the 2012 Olympic park. The open-air track at Herne Hill is completely hidden in a South London suburb.
In December 2013 the House of Commons Select Committee on Science and Technology announced an inquiry into the efficacy of screening for cancer. ‘The NHS spends a significant amount of money on health screening,’ Andrew Miller, the chair of the committee, said, ‘and it is important that this is underpinned by good scientific evidence.’ But the awkward truth is that much of the evidence is contested. The argument over breast cancer screening has been going on for decades, often bad-temperedly, and concerns not just the efficacy of the screening itself but its potential to do harm as well as good.
At the centre of Monday night’s Panorama programme on fraud in the NHS was an interview with Jim Gee, an expert on the financial cost of healthcare fraud. Gee showed the presenter a newly published report, of which he was the first author, and talked about its findings. He turned to a key page and the camera picked out a bar chart as the two discussed some of the figures it contained. The report was also given wide coverage in the print media this week. Stories were run in all the broadsheets and across the tabloids with many local papers picking up the story and giving it a local spin. The figure, highlighted in Panorama, that most journalists seized on was the estimate that fraud was costing the NHS around £7 billion a year, enough – the Express pointed out – to pay for 250,000 nurses.
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