How facial recognition technology aids police

Police officers’ ability to recognize and locate individuals with a history of committing crime is vital to their work. In fact, it is so important that officers believe possessing it is fundamental to the craft of effective street policing, crime prevention and investigation. However, with the total police workforce falling by almost 20 percent since 2010 and recorded crime rising, police forces are turning to new technological solutions to help enhance their capability and capacity to monitor and track individuals about whom they have concerns.

One such technology is Automated Facial Recognition (known as AFR). This works by analyzing key facial features, generating a mathematical representation of them, and then comparing them against known faces in a database, to determine possible matches. While a number of UK and international police forces have been enthusiastically exploring the potential of AFR, some groups have spoken about its legal and ethical status. They are concerned that the technology significantly extends the reach and depth of surveillance by the state.

Until now, however, there has been no robust evidence about what AFR systems can and cannot deliver for policing. Although AFR has become increasingly familiar to the public through its use at airports to help manage passport checks, the environment in such settings is quite controlled. Applying similar procedures to street policing is far more complex. Individuals on the street will be moving and may not look directly towards the camera. Levels of lighting change, too, and the system will have to cope with the vagaries of the British weather.

[…]

As with all innovative policing technologies there are important legal and ethical concerns and issues that still need to be considered. But in order for these to be meaningfully debated and assessed by citizens, regulators and law-makers, we need a detailed understanding of precisely what the technology can realistically accomplish. Sound evidence, rather than references to science fiction technology --- as seen in films such as Minority Report --- is essential.

With this in mind, one of our conclusions is that in terms of describing how AFR is being applied in policing currently, it is more accurate to think of it as “assisted facial recognition,” as opposed to a fully automated system. Unlike border control functions -- where the facial recognition is more of an automated system -- when supporting street policing, the algorithm is not deciding whether there is a match between a person and what is stored in the database. Rather, the system makes suggestions to a police operator about possible similarities. It is then down to the operator to confirm or refute them.

By Bethan Davies, Andrew Dawson, Martin Innes (Source: https://gcn.com/articles/2018/11/30/facial-recognitionpolicing.aspx, accessed May 30th, 2020)

      America’s deadliest building fire for more than a decade struck Oakland, California, on December 2nd 2016, killing 36 people attending a dance party in a warehouse that had become a cluttered artist collective. The disaster highlights an open secret: many cities lack resources to inspect for fire risk all the structures that they should. Even though the Oakland building had no fire sprinklers and at least ten people lived there illegally, no inspector had visited in about 30 years. How might cities make better use of the inspectors they do have?

      A handful of American cities have begun to seek help from a new type of analytics software. By crunching diverse data collected by government bodies and utilities, the software works out which buildings are most likely to catch fire and should therefore be inspected first. Plenty of factors play a role. Older, wooden buildings, unsurprisingly, pose more risk, as do those close to past fires and leaks of gas or oil. Poverty also pushes up fire risk, especially if lots of children, who may be attracted to mischief, live nearby. More telling are unpaid taxes, foreclosure proceedings and recorded complaints of mould, rats, crumbling plaster, accumulating rubbish, and domestic fights, all of which hint at property neglect. A building’s fire risk also increases the further it is from its owner’s residence.

      Predictive software designed at Harvard that Portland, Oregon, will soon begin using will do that. Perhaps more importantly, the city’s fire chief noticed that buildings marked as being the biggest risks are clustered in areas lacking good schools, public transport, health care and food options. Healthier, happier people start fewer fires, he concluded. He now lobbies officials to reduce Portland’s pockets of deteriorated areas.

(The Economist. www.economist.com/the-economist-explains /2018/08/29/how-cities-can-better-prevent-fires. Adaptado)

As the Olympics Approaches, a Lesson in Overcoming Adversity

Bert R. Mandelbaum, MD

July 20, 2016

      I've known a lot of athletes who qualified for the Olympic Games ,______injuries. But I know of only one who qualified because of an injury.

      Cliff Meidl’s story captures the spirit of the Olympics.

      In November 1986, Cliff, a 20-year-old plumber's apprentice, hit three buried high-voltage electrical cables with a jackhammer. An estimated 30,000 volts surged through his body, exploding bone and cartilage from the inside ail the way up to his head. To put that into perspective, electric chairs use only 1500-2000 volts for executions. So it's safe to say that Cliff should have died.

      And he nearly did. His heart stopped. Paramedics were able to get it going again, but they had to resuscitate him on the way to the hospital.

      As part of a team with renowned plastic surgeon Malcolm Lesavoy, MD, and others, I got to work reconstructing Cliffs legs. Our best hope was to avoid amputation.

      But very quickly, we noticed something else going on - something that had nothing to do with our expertise. Through every step of his painful rehabilitation, Cliff grew more and more determined. He never complained. He just asked, "What's next?"

      Before he had even finished the rehabilitation, Cliff started paddling various watercrafts. The days spent on crutches had already strengthened his upper body, and he took naturally to the sport. The same year in which he was injured, he began competing in canoe and kayak events, and in 1996 he qualified for the Olympics - not the Paralympic Games, the Olympic Games.

      Four years later, in Sydney, Australia, I was overseeing the sports medicine team at the Olympic soccer tournament. I was sitting in the stands during the opening ceremonies when Cliff walked into the Olympic Stadium carrying the Stars and Stripes.

      It's a long-standing tradition for delegations of athletes to select one among their number to bear the flag, and the choice often symbolizes some extraordinary accomplishment. I had no idea that Cliff would be selected. So when he strode into the stadium with a normal gait, I nearly broke down.

      Moments like that reinforce what I have always believed: that sport can bring out the best in us all.

      The Olympic Games (...) are devoted to celebrating the human capacity to improve body, mind, and soul.

      They are about taking part - not necessarily about winning. Cliffs peers in the US delegation of 2000 recognized that when they elected him to bear the nation's colors. He never won a medal at the games, but the spirit with which he overcame adversity inspired all of them.

      The Olympic motto - faster, higher, stronger - can help our patients realize that the real victory is the "win within." The Win Within: Capturing Your Victorious Spirit is the name of the book I wrote to show people that coming back from adversity is part of our heritage - that we as human beings are more adapted to adversity than we are to success.

      Adversity is the engine of unimagined opportunity. It can unleash our energy and stimulate our will. It moves us to succeed. If I don’t have food, I have to go get some. If I’m cold, I have to build a shelter.

      I remind patients who don't participate in sports that they have the heritage of athletes. We all have the genes of pursuit-hunters who survived by running down their prey and running away from their predators. That's why even now, in 2016, when we go out and take a run, we feel good. We get an endorphin surge and our lipids go down. Our hearts and brains become clear.

      The life of sport and sport of life are interlinked. Exercise is our birthright; it's our legacy; it's why we are here.

      We no longer have to fear saber-toothed tigers or cave bears. But when you look today at how people can be successful in 2016, it's by avoiding the predators in our urban life: overeating, inactivity, and smoking. And it's by rising to meet adversity.

(Adapted from http ://www.medscape.com/viewarticle/866279) 

A questão refere-se ao texto a seguir: 

            Operation Desert Storm Was Not Won By Smart Weaponry Alone

      Technology has long been a deciding factor on the battlefield, from powerful artillery to new weaponry to innovations in the seas and the skies. Twenty-five years ago, it was no different, as the United States and its allies proved overwhelmingly successful in the Persian Gulf War. A coalition of U.S. Army Apache attack helicopters, cruise missiles from naval vessels, and Lockheed F-117 Nighthawk “stealth fighters” soundly broke through Saddam Hussein’s army defenses in Kuwait during Operation Desert Storm, which became known as the “100-hour war”.

      But for all the possibilities that this “Computer War” offered, Operation Desert Storm was not won by smart weaponry, alone. Despite the “science fiction”-like technology deployed, 90 percent of the pieces of ammunition used in Desert Storm were actually “dumb weapons”. The bombs, which weren’t guided by lasers or satellites, were lucky to get within half a kilometer of their targets after they were dumped from planes. While dumb bombs might not have been exciting enough to make the headlines during the attack, they were cheaper to produce and could be counted on to work. But frequency of use doesn’t change why history will remember Desert Storm for its smart weapons, rather than its dumb ones.

Adapted from http://www.smithsonianmag.com/history/ operation-desert-storm-was-not-won-smart-weaponry-alone- 180957879/