this is bbc news. the headlines: australians are voting in a tightly—fought general election which could see the opposition labor party regain power. labor, led by bill shorten, has had a slender lead, in opinion polls over, the conservative liberal party of the current prime minister, scott morrison. the united states and canada have agreed to drop tariffs on steel and aluminium imports imposed just under a year ago. it follows lengthy negotiations. it could pave the way for the ratification of a new north american trade agreement. an attempt by britain's two main parties to find a compromise that would break the deadlock over brexit has failed, after the main opposition labour party pulled out. it came after six weeks of talks with the governing conservatives. theresa may said labour's position on holding another referendum had made the discussions difficult. labour blamed weaknesses within the government.

now on bbc news, time for click. this week, recognising faces years later. video from all angles. and the rise of the machines. artificial intelligence continues to play a bigger and bigger role in our lives so it is not surprise that

this summer exhibition chance our perception of computers, intelligence and artificial beings through the ages and through the lens of different cultures. the desire to create artificial life is old, very old. it goes back at least as far as the legend of the gollum, created from dust or clay, brought to life through incantation. ai more than newman is a celebration and a critical examination of innovation stop showcasing the works of diverse digital artists in academic institutions around the world. see, in100 institutions around the world. see, in 100 years‘ time, we will all look like this. how computers perceive us using cameras is an overarching theme here. last week, we covered

theme here. last week, we covered the uk police‘s increasing deployment of live facial recognition from a specially equipped advanced to cctv cameras and, in london, we caughtan incident where one man refused to be scanned. don't push me out of the way. this man did not want to be caught by the police cameras so he covered his face but they stopped him, photographed him at an argument followed. the police said this was disorderly behaviour so they gave him afine. disorderly behaviour so they gave him a fine. if i want to cover my face, i cover my face. a £90 fine. well done, lads. just this week, san francisco has banned law enforcement agencies from using facial recognition. it is a landmark decision in a security versus civil

liberty debate surrounding the technology. we asked for your feedback and we were inundated with comments and questions. many of you we re comments and questions. many of you were of the opinion that if you have nothing to hide, there is nothing to worry and this is another tool to keep us safe. but some opinions expressed exactly the opposite and that this is another step towards a surveillance state. stephanie, welcome. 0ne surveillance state. stephanie, welcome. one of the questions was asked the most was whether facial recognition could work for people who wear face coverings. this is what the police said. some communities avail the face. is that a problem? it is not a problem. it is more of a challenge. the eyes are really important in terms of facial technology. often they are visible.

it works with motorcycle helmets as well. operationally it is not as effective but it is not an impossibility. the police say facial recognition technology will still work even if the face is partially covered. some can indeed identify someone covered. some can indeed identify someonejust using their covered. some can indeed identify someone just using their eyes. that would require infrared capability and sent capability. that exists in your apple iphone x but does not exist in the technology that the police are currently using which is relying on 2d photographs and cctv cameras which return quite low quality footage and even body cameras. this technology is under development and illustrates that is possible. another question that came up possible. another question that came upa lot possible. another question that came up a lot was about facial data and

gdp. there are companies creating databases. how is this allowed? fa cewatch, databases. how is this allowed? facewatch, for example, is maintaining its own list and sharing its privately gathered list with the police and then the police are sharing the data base police and then the police are sharing the database with facewatch. the potential loophole is that gdpr protects data but makes exceptions for security, fraud and corruption. thank you for your comments and questions. you can always get in touch with us on twitter. so far we have been concentrating on the negative side of facial recognition

but it can also be used as a force for good. as we mentioned last week, one of the biggest drivers of this emerging technology is a china in one of the companies behind this is 10 cents. they use facial recognition including to stop underage game planing. when i visited their hq they took me talk technology. they use technology to help find hundreds of people. on occasions i have been missing for a number of years and they account for the change in facial features. i number of years and they account for the change in facialfeatures. i met up the change in facialfeatures. i met up with ross, who explained how the technique is a bit like converting faces to a stream of numbers.

translation: this is a thermal map of the human face. for it to be identified, it has to identify certain features. we work with public security to build a database and if anyone spots an elderly person wandering the streets, we can ta ke person wandering the streets, we can take a photograph and uploaded and quickly identify the person into the database. people quickly identify the person into the data base. people hope quickly identify the person into the database. people hope that facial recognition is useful for their purposes, for example payment. for the public, everyone would be worried if everywhere they go they can be identified. it is a very sensitive thing, even in china. in the uk, the latest public data suggest over 60,000 people went missing in the space of a year. while 97% of those come home or are found alive and well, the unimaginably heartbreaking search for the remaining 3% continues. here

also facial recognition could provide an extra bit of hope. this isa provide an extra bit of hope. this is a six—year—old who disappeared from herfamily is a six—year—old who disappeared from her family home is a six—year—old who disappeared from herfamily home in albania in 2010. and this is how she might look today at 15. after repeated sightings by albanian visitors, she is thought to be in the uk. in her home country, hers has been a high—profile face so of course all conventional avenues of searching have been pursued but now, recognition software is being tried. it is part of a new system to help search the darker web as well as other websites to find any pictures that there her likeness. the dark web is what could be described as the hidden part of the internet. it provides anonymity to those using it

and chasing it is difficult. this engine casts its net wide. searching internationally for likeness. when it gets ahead or receives a reported sighting, a poster sent to screens in the vicinity, feeling otherwise redundant advertising space. —— feeling. it is a basic platform that allows currently 29 countries and law enforcement agencies and charities to upload missing child photographs and information on social media, on e—mail, or on twitter. it works by extracting data from the face and representing that as numerical values so then it will do the same again with the other images they are searching for the person in. we have a percentage

possibility as to whether it is that same person. translation: we did not store the faces but a numerical representation. we incur that numerically and that is a one—way process. we cannot return and generate images for the face. we have a customer in the us that has rescued a 16—year—old girl in northern california that had been trafficked for sexual exploitation. inputting the picture created no leads on this occasion but the system will continue to search until it is told to stop. yet the pain of not knowing still continues for her family. this is early days for the technology and clearly it can be improved over time. we are looking to connect to other datasets. child sexual abuse material data bases, perpetrator, sexual offences databases or even a cctv. if this

system has the capacity and is that easy, with within the second searching why is not done for every child? it is a matter of capacity to make sure the system is used properly. at the moment, there is only limited access and we need to make sure that we have outstanding images for three days and then run them. as is often the case, the technology existing is just a first stab. with the ability to search not just the open internet but also the dark web this could be the start of something far bigger. welcome to the week in tech. what‘s up welcome to the week in tech. what‘s up urged its users to update the app after finding surveillance software

had been installed on some phones. a p°p‘up had been installed on some phones. a pop—up selfie camera. and nasa announced plans to send the first woman to the moon. amazon.com is rolling out .com is capable of packaging 600 customer orders per hour. machines could replace the job of 1300 people in amazon warehouses across america. they said the technology increases safety, increase speed and efficiency number. donald trump has declared a national emergency. the president signed an order effectively banning american companies from using foreign telecom companies which are thought to be security risks. it is thought to be security risks. it is thought to be security risks. it is thought to target huawei. the uk 56

network in the meantime will be using huawei. they say it is being reviewed. the global learning x prize has been announced. they will split a $10 million prize. they worked with children across tanzania to teach children basic reading, writing and arithmetic skills. new york‘s tribeca film festival has just packed up for another year and while traditional independent cinema is still very much the festival‘s bread—and—butter, virtual reality is fast becoming a staple of the event. this year there was not an exception with drug —— tribeca‘s immersive arcades drawing the crowds, wanting to see what the most creative people in vr of,. they certainly didn‘t disappoint. there is a real variety on show from the stop motion epic

gymnasia to experiences which take you back in time thousands of years or to the frontlines of the first world war or even this inner—city housing estate. when we first started showing things, was kind of list of things you couldn‘t do in vr. you can‘t move the camera, there are no cuts, all of those things have changed. all it took was experimentation. drop in the ocean gives you the chance to ride on a jellyfish in the darkest debt is all the way to the surface, discovering a host of life and plastic pollution on the way. and thanks to some new body tracking tech you can do the whole thing with a friend. while for me it wasn‘t perfect, it did give you a glimpse of a less lonely future for vr. cinema experiences like these are still one of the few ways for most people to experience really immersive virtual reality and that‘s because the current generation of high—end vr headsets can be complicated to set up and expensive. perhaps this new form

that will help. it feels like it‘s been a year of vr for the last five yea rs or been a year of vr for the last five years or so. the real question is when will vr go mainstream and is this the experience that will take us this the experience that will take us there? 0k this the experience that will take us there? ok so maybe that headset isn‘t the answer. this is the quest, the latest headset from facebook owned 0culus and you might notice there is not a cable inside anywhere. everything is contained in the headset itself including the track it —— the tracking which tells where it is in the room. doing away with the external track is the older headsets needed. the questions different with four cameras per student at the front of the headset and read the room and grout where it is, like we do with our own two eyes. it‘s a pretty slick piece of kit and considering you have half a kilogram strapped your base it feels good. built—in speakers are good but you will still have to use headphones for nice audio. ultimately inside the questions still a very high—end mobile phone

and you can see that in the script back style of many of the experiences and games on offer. £400, i'm still experiences and games on offer. £400, i‘m still sceptical this is the device which will make vr go mainstream but it‘s definitely an improvement on what we had before and for many, it will be fun. back at tribeca, creators are not letting things like that cramp their creativity. ticket experiences like these are a crucial part of keeping these are a crucial part of keeping the vr bus alive. it's a very youthful medium still suitable take time for people to adopted but what‘s important at the moment is location based experiences so we have places like the tribeca film festival but create a launch point for the experiences and expose audiences to the medium. better headsets and better experiences can only be a good thing for vr but the glaring issue for me is still how solitary it all can be. if there is a killer app for vr out there, it will almost certainly have to solve that problem first. that was

stephen. and back at the barbican‘s new exhibition, i‘m becoming part of the show. no, this isn‘t a paging towers but an ai looking at my hand and other objects through the camera. this is a demonstration of how a neural network can only interpret what it sees from the camera based on what you‘ve already taught it so if you only need a neural network images waves, it will try and interpret what it can see through this camera in terms of seascapes through this camera in terms of seascapes but if, for example, you we re seascapes but if, for example, you were to only feed it images of fire, then my hands would be interpreted in terms of flames. pretty cool, or should i say, hot. constructing

images on what it seemed previously means an ai can often extrapolate minute details of something and dream up visuals that never would. this bizarre work highlights how a neural network will look for patterns that it recognises but if it looks too hard or the sensitivity is turned up too much, it starts to see things that aren‘t there. it sta rts see things that aren‘t there. it starts imagining. 0r hallucinating. learning how an ai perceives the world is an undercurrent running throughout the exhibition and with understanding comes language. this is the waterfall of meaning and it examines millions of sentences and looks at the way we use words to try and teach itself whether for example beer is expensive or cheap, whether it‘s bad or good, whether it‘s mail orfemale. if there is it‘s bad or good, whether it‘s mail or female. if there is an it‘s bad or good, whether it‘s mail orfemale. if there is an inherent bias and how we use words, that will sharpen the results. ai isjust

revealed the secret part of human so i think this is a good opportunity to think about bias, because ai doesn‘t lie. ai doesn‘t excuse. ai just reveals everything. so then that‘s the reason, you know, the bias problem. actually, we have the problem already. the judgement and ethics of artificial intelligence is under the spotlight here. taking pa rt under the spotlight here. taking part in the exhibition is worldwide ai expert francesca rossi. she is pa rt ai expert francesca rossi. she is part of the‘s new commission of crack team of ai experts working on establishing ai guidelines. the problem is on trust. how do we build trust in the technology itself. what are the property is needed of the technology regarding bias, explain ability and so on and also trust in

those that produce the technology. for example, by assuring that they have some level of transparency in how they build the technology so if you build the various dimensions of trust, we think that this is the right approach to really get these concerns under control and this will put us in the best position also to address possibly new concerns that will come with more advanced and future versions of ai stop 0k, will come with more advanced and future versions of ai stop ok, let‘s move on now. the way that we watch football has changed dramatically in the last few years. we can now watch more angles and more devices than ever before but paul carter has been checking out a new camera system which could give football fans are totally new perspective on the action. in a previous episode of the show, we saw how the emerging tech ology of volumetric filming was being used by movie studios to shoot

films and a whole new way. this system developed by intel uses a series of cameras to create 3—dimensional images of a set but now it‘s seeing new applications in the world of sport. i am here at the emirates stadium, home of arsenal, the first premier league football tea m the first premier league football team use a revolutionary new technology which could change the way we watch the beautiful game in the future. as well as arsenal, the intel true view system has been installed at two other premier league clubs. champions league finalists libya —— liverpool and newly crowned champions manchester city. in the past, traditionally a camera would show you one point of view. what we can actually do is enable multiple cameras to consist of one frame and one shot that shows you 360 degrees angle showing you all the blaze, did he touch, did he

not touch, i‘d like to see from the other side so now we can deliver that story to you. it consists of 38 five k cameras installed at fixed points around each stadium which feed content into a dedicated control room. in this control room, and operator and producer can reap create match action in 3d and using some serious processing power, can allow replays to simulate the perspective from any point or player on the pitch. imagine that if you will be filming in volumetric ‘s, i would not just be will be filming in volumetric ‘s, i would notjust be a 2—dimensional images people but actually build—up hundreds of thousands of millions of 3—dimensional pixels. hundreds of thousands of millions of 3-dimensional pixels. so what are the clubs get out of it? it starts to merge that space between that passive sports viewing experience that we are all used to in a kind of active e sports and gaming experience that people are used to. it has the ability to really provide

a properly and truly immersive experience for our audience so the ability for them to feel, see, experience what it‘s like to be sergio aguero scoring a goal on the weekend at the yeti had is a really truly compelling proposition. although in its infancy and sport, the potential for this technology is plain to see. with increased connectivity and cloud —based processing, could we see fewer people paying for tickets to attend matches in person? when the stadium was full, this stadium is noisy. you get the smells, you get to spot what the people on the other side are doing, you get to watch the left back if you want to watch the left back. there is an experience here that he will never be able to convey onatv that he will never be able to convey on a tv screen or on a tablet or whatever. what we‘re trying to do with things like the intel tech, though, is get that experience as close as possible. that was tom hines talking to paul carter. this

is alta iii which is in no way freaking me out. that is it from more than human at the barbican in london. if you want to get in touch with us, we live on facebook, instagram, and twitter. i‘m going to step away from this thing. goodbye. but the hello. much of this week has been gloriously sunny, dry and reasonably warm. things turned a bit cloudier and cooler later on friday. this was a picture taken by one of our weather watchers in mepham in kent. a bit of sunshine across scotland. through the course of the weekend the sunshine will be

in shorter supply. quite an unsettled showery story. some sunny spells, especially across parts of the uk. scotland will see the bulk of the rain on saturday morning because we have got this frontal system, fairly weak front coming and which is introducing a lot of low cloud, mist and fog as well. outbreaks of rain across parts of scotland. a soggy start to saturday here. patchy rain affecting parts of northern ireland. a few showers popping up for northern england. further south, dry weather through the morning, but you‘ll notice too, one or two of those showers just bubbling up in the afternoon. nowhere immune to catching a passing shower. in the afternoon. it will be hit and miss, some sunshine in between. temperatures in the south likely to hit 19 also. further north, just 13 or 14 celsius. a different feeling in scotland compared to what we have seen in the past few days. moving through into the early hours of sunday morning, quite a lot of cloud in general across the country, particularly cloudy in the north and patchy outbreaks of rain to scotland

and northern ireland. drier further south and we‘re looking at a frost—free night with temperatures generally holding up into mid—single figures. so this is how we are heading into the second half of the weekend for sunday. a big area of low pressure across central parts of europe. we‘re drawing in the breeze around that. a bit of an easterly flow bringing that cloud off the north sea to parts of eastern scotland. eastern england could see one or two showers popping up, and some patchy rain moving into western scotland and northern ireland. during the afternoon, more of these showers tending to bubble up. you will really notice that mix of sunny spells, scattered blustery showers, one or two on the heavy side, could be heavy hail and the odd rumble of thunder. a bit warmer, 20 degrees or so the top temperature by the time we get to sunday.

heading on into the new working week, and there‘s not a great change in the pressure set—up. we‘ve still got a bit of a slack flow, things not moving very quickly, patchy cloud around, some sunshine i think through the day on monday, and a lot of dry weather in the morning but again, it will be the afternoon with the daytime heating we see those showers developing, particularly in eastern scotland and eastern england during the day on monday. temperatures not too bad. 14—20 degrees or so. the outlook is fairly settled through the week ahead. some showers around and spells of sunshine.

welcome to bbc news, broadcasting to viewers in north america and around the globe. i‘m reged ahmad. our top stories: voting is underway in australia — prime minister scott morrison is hoping to hang on to thejob, against a challenger from the left. these are live pictures from sydney, after a close—run election contest climate policy became the defining campaign issue. the us and canada agree to drop tariffs on steel and aluminium imports after lengthy negotiations, opening the way for a new trade deal. a united front. populist far right parties prepare for the upcoming european elections. gearing up for eurovision, hot favourites sweden and switzerland rehearse for the 64th song