this is bbc news. the headlines: one of north korea's highest—ranking officials is talking with the us secretary of state in new york, to finalise plans for a historic summit next month between his leader, kim jong—un, and president trump. prospects for a summit seem to have improved since mr trump briefly cancelled it last week. a grand jury in new york has indicted the disgraced film producer harvey weinstein on charges of rape and sexual assault. the charges relate to alleged attacks on two women in 2013 and 2004. he also faces investigations in la and london, but denies all accusations. russia has criticised ukraine after it emerged that the murder of a russian journalist in kiev was faked, apparently to foil a genuine assassination plot. officials claim they've arrested a ukrainian man, who offered a hitman $30,000 to kill the journalist arkady babchenko. it is just after half—past three in

the morning. you up—to—date with the headlines. it's time now for click. this week: we are striking a pose. finding the fruit. and asking the scary questions. lara lewington: what about if there were no mobile phones? gasps how are you feeling today? what's happening? i'm putting emg sensors on your trapezoids. are you? on my trapezoids? yes. me, i'm a little embarrassed due to the nature of the outfit. which, of course, is bright green. this makeshift motion capture suit is going to measure my emotions.

at university college london, researchers believe that it's cues in your body that give away your emotional state. using multiple sensors, this bodysuit measures my movements, energy and posture — all strong indicators of how i'm feeling. what? the work here at ucl aims to help detect stress in workers, measure psychological states, depression and pain, and aid rehabilitation. if you are embarrassed, you close yourself, you tend to hide. we, for example, study how people laugh when they are embarrassed and when they laugh because they are really happy, and there is a very different type of movement. is there? right. so when you are more positive, you tend to open, you're proud of yourself, you tend to open your shoulders, they aren't tending to be more slightly more far away from your body. is this better than looking at someone‘s face to judge emotion? in very emotional situation,

it has been shown that the body is much more informative than the face. if you want to hide your emotion, you control your face and you forget about your body, so the body lea ks or you over control your body, so you just do move any more, and we know something is wrong. and, of course, then we can also measure information about the dynamic of the movement, the speed, the jerkiness of the movement. if you are angry, you tend to have thisjerky movement. nadia and the team have also developed a novel use for your smartphone. using infrared sensors, this phone has been rigged to detect stress levels through your breathing patterns. to put it to the test, the team gave me some maths problems to solve — yes, just like being back at school. brilliant!

beep klaxon oh, what? klaxon oh, no, got that wrong! suddenly, i'm really stressed. nadia hopes to eventually put these kind of sensors into clothing to help patients and people in pain. this emotional insight is valuable in other ways, too. there are some people, such as people on the autism spectrum, that tend not to be able to interpret actually the emotions and the expressions of themselves and the people that they see, that they communicate, so in that sense, we can make claims that training or creating computing technology might be better than them in terms of such interpretation, or can even help them as assistive technologies. and you are forgiven. facial expressions obviously give away a whole host of non—verbal information and there are companies who are trying to uncover your hidden reactions to better market their products. emotional data can be used against us because we always feel something. so although we think we are logical beings, research shows that even when we are not aware or even when we are not conscious, we always

have a feeling about things. you like it or not, you dislike it or not, and that actually affects our decisions, affects even our learning, our attention, all of that. your emotional responses are a key component in purchasing, even if you don't realise it, and companies want that crucial emotion data. welcome to the world of neuromarketing. realeyes, whose clients have included mars and lg, specialise in emotion detection and neuromarketing. they use facial cues to gauge consumers‘ reactions when viewing adverts, so that messages can be refined to hit the right spot. and i'm putting that to the test with the help of some classic bbc clips. play it nice and cool, son, nice and cool, you know what i mean? laughs using just a webcam,

realeyes are going to measure my emotional response. so you're clearly mapping features of the face here, and is it enough to look at the eyebrows to see surprise and the curve of the mouth to see happiness or sadness? yeah, the face is surprisingly revealing. we humans understand body language quite well, it's a huge part — it's, some say, 80% of our communication — but computers have not had the ability until now. right now, we work within marketing because emotions drive what people do. the more people feel, the more they tend to do, so we see in real time how people respond and pick up that signal of where is the true emotional connection between a brand and the audience? many people would find it creepy that their computer is starting to read their emotions and possibly tailor what they see, either to influence them orjust to respond to their emotions.

yeah. in that sense, i don't think the emotional analytics is any different to any new technology. people are always sceptical in the beginning and what tends to happen is that then at some point when this technology really starts to help people in different ways, then they understand the value of it and it becomes normal. emotion and data are combining in ways that will radically transform our relationship with machines. that could be advances in medical diagnoses, orjust to learn more about our strange human sense of humour. my apologies. laughter and imagine this — in the future, your emotions could influence the things that you watch. jen copestake has been to see a film where the plot changes,

depending on your reactions. as our world becomes more augmented by technology, the lines between fiction and reality are blurring. very soon, we may be able to entertain ourselves in these new realities simply by using our thoughts. i'm here at the university of nottingham, where i mightjust see the greatest film that's ever been made, because it's being made by me, using my brain waves. this must be it. this tiny adapted caravan is where i will watch the movie my mind would most like to see. so we're just going to fix you with this eeg headset, clips on, and then there's a sensor on your forehead as well. so this eeg headset is monitoring my brain activity? yeah, it picks up eeg data, the really tiny electrical signals sent off by the firing of your neurons. so the signal is good. we will press play. enjoy. i rememberyou had become all these different people. there are three simultaneous

narratives that my brain can dip in and out of to make up a unique film, with over 101 trillion possible combinations per viewing. is that my brain activity now? this is your data, yes, so you can see your alpha waves, your gamma waves, your beta waves there. and they are just sending out a string of numbers. the more focused my brain is, the longer the scenes are, and the more the narrative holds together. if i lose focus, the computer cuts the scenes more rapidly. so it's a pretty surreal experience watching a film that you're creating as you're going along. the whole concept behind this project as a whole was — it was inspired by what was happening with these social media bubbles that are still about, but during, like, 2016, we saw gamergate, with brexit, with the american election, and how, like, a small group of people could influence larger groups. the moment is designed to be watched twice in a row by groups of around

five, where two people take turns watching the movie with the headset on. people then observe the different ways the narrative changes. so, how did you find the film? ah, really interesting. did it make you think about your relationship with technology? ah, for me, yeah, and also, like, a little bit about, you know, like, society, about, like, people not thinking about what they are doing. i always prefer having an artist picking a message for me and then it does whatever it does to me, rather than me making my own message. it feels like i would be living in my own bubble. i would like the artist to pick the film for me. i don't want to live inside my bubble any more than i already do. it's a bit scary, isn't it? it's a bit scary, yeah, it's a bit scary. what my endgame really is, just to ask people to consider critically the technology that we use and why it's being used in that way. the moment has its world premiere at sheffield doc/fest onjune 7.

and after that, the caravan will hit the road across the uk. hello and welcome to the week in tech. it was the week that facebook boss mark zuckerberg apologised to members of the european parliament for the company's role in the cambridge analytica data scandal. his apology didn't go down well, though, as zuckerberg was accused of not answering many of the questions put to him. publisher epic games announced that it will be offering a prize pot almost £75 million for its upcoming fortnite tournaments. the bumper bundle of readies is believed to be the biggest sum of money ever offered for an esports event. it was also the week that barack and michelle 0bama signed a multi—year deal with streaming giant netflix to produce content that could potentially include scripted series, unscripted series, docu series, documentaries, and features. that should keep them busy for a while!

and you might think that acrobat is one job which is completely safe from the upcoming robot revolution. well, think again, as no less than the disney research hub have shown off stickman — an acrobatic robot that can backflip through the air. stickman uses inertial motion sensing, laser rangefinders and computer vision to stick that perfect landing. well, kind of! fanfare ah, the royal wedding — a once—in—a—lifetime opportunity to see history unfold, drink pimms, and spot the stars. so many faces to see. so many stories to know. but we can't all have access to thousands of pages of scintillating who's who information like me. oh, look! it's william guy vestey, the eldest son of samuel and cecilia vestey!

he's married to violet henderson with whom he has, yes, one daughter. fascinating! and fortunately, this royal wedding, you don't need any of these to stay in the know. this is who's who. it's a website for phones and desktops that uses artificial intelligence to automatically recognise all of those royal wedding guests. from the famous to the more obscure, each guest's face is tagged with their name and some background info. plus, the tool lets you skip around to watch your favourite guests arrive. built by data company greymeta and broadcast by sky news, it's the first time they've used facial recognition for a live broadcast. who's who, our royal wedding project, was an opportunity to use machine learning and artificial intelligence to find a different way of telling a story. we knew that with celebrities, viewers would be able to identify them without the software. we also knew there were large numbers of members of the royal family, particularly the extended royal family,

who, while public and therefore we would be able to identify them, wouldn't necessarily be obvious to our viewing public. what we were able to do therefore was identify them as they arrived at the ceremony, as well as some of the better—known celebrities, to give a richer experience. behind the scenes, who's who uses amazon's cloud—based rekognition system. throw photos or video at rekognition and deep learning algorithms are put to work to try and figure out what exactly is going on. that's easy enough for us humans but for computers, understanding what's happening in videos and images is no simple task. this is what amazon rekognition looks like behind the scenes. i've just uploaded a clip from last week's click and in a few minutes, it has given me this list of people, objects and activities that it thinks it's found in that video. things like this bloke cycling, the faces of these bystanders, and click host and celebrity, urban mayer? facial recognition today isn't perfect.

even though, we, you know, trained a model based on, you know, anticipated guests, you know, we were getting 70—80% accuracy. it was moderated by the researchers who had curated all of the training material for the a! service in the first place, yeah, so they were very familiar with the names, the people, the faces. but even if you don't know your meghan markles from your angela merkels, techniques like these are already finding uses in other areas. last year, the new york times built a tool to help reporters recognise members of congress. dubbed "shazam but for house members‘ faces," who the hill lets journalists text in photos, which are then analysed in the cloud forfamiliarfaces. like sky's who's who, the recogniser is trained on existing pictures of members of congress to make it more accurate. but would you like the idea of being instantly and automatically identified without your consent? well, this week sees the start of gdpr, the eu's new, stricter data legislation, which may mean that tools like these

might no longer be legal. we were looking at public people in a public environment where they are expecting to be recognised, which gives us implied consent. in a post—gdpr world you need exposing consent, which means that if we wanted to run this thing in the future we would have to contact people and say this is what we are doing in a particular environment. we would consider that if we go forward with this project, or we may consider to do alternative things with this type of technology. just this week amazon found itself in hot water after it was found that they had been marketing recognition systems to law enforcement agencies in america. as technology like this because more accurate and widely used, we could all be as recognisable as the royal family. and if you want to try image recognition for yourself, you could have a go with the blippar app, which is doing a good job recognising objects as well as faces. for certain types of objects, it has been trained on specially curated datasets, categories

like cars, landmarks, works of art, dogs and cats and flowers, which means that once it has recognise an object it can go into quite a bit of detail about it. and also show you its knowledge graph which is a web of all be connected themes that surround the object that it can see. blippar is really made for augmented reality marketing campaigns and also educational experiences, which means it's better at recognising some things than others. and, let's face it, it is trying to do to really hard tasks, here: first began an object in the scene, and then somehow match it to its training images. but it can recognise more general objects under the right conditions. the things it finds hardest to recognise are objects which are deformable, floppy, and don't keep their shape, like clothing and politicians‘ opinions. and yes, it can also do famous faces. it‘s trawled the web to pull in photos of about 500,000 famous people in figures.

in fact, it can even recognise not so famous faces, like me. it also recognises faces that are usually hidden behind sci—fi masks, for example, and it even gets karl howman from brush strokes. and that, yeah, that‘s definitely lara, who has been to wimbledon‘s polka theatre, where they are running workshops on how kids can stay safe online. inevitably, kids today are growing up surrounded by technology, and there are pros and cons to that. but the issue is that grown—ups are still learning how to handle it. i can see you eager beavers are ready to start the game. so here at the techtopia festival

at wimbledon‘s polka theatre, they‘re hoping to help, with creative ways to get the kids thinking. the objects represent different websites. the digiplay workshop here is about teaching kids to safely navigate online. it also encourages them to think about what they are going to share and how they are likely to be perceived as a result. after all, this lot are already pretty active web users. life without the internet, it would be the worst. i would just die straightaway. if there is no internet. what if there were no mobile phones? squeals phew! but they do have a few concerns. one of the worst things is on your homepage and not knowing your password. the worst thing is when they get a virus. they talk a lot about internet safety, so don‘t share your details with strangers, don‘t click on links

in e—mails and that sort of thing. but they don‘t talk about what goes on underneath — what information the platforms are collecting about you. what we aimed to do was to raise awareness about how the online world is governed by algorithms and the types of data people share online, and the information that goes online. and what i did was a series of projects with 13—17—year—olds, and they are already pretty savvy. they have grown up online so they know what they are doing. um, but they‘re not sure how everything works. now, today, working with the younger ones, sort of 8—and—9—year—olds, it is really fascinating to see they have the same knowledge about this stuff and they are aware and their parents have already kind of brought them up to stay safe but not necessarily know what is going on in the background. but after today, they seem brimming with knowledge. use the internet safely and don't go on websites that you don't know about. make sure to keep all your personal stuff safe on the internet so nobody steals them. if get upset on the internet, always tell your parents. maybe not surprising when they are part of a generation

they can end up surrounded by screens from day one. even if they start off as the forbidden fruit, it‘s not long before parents are weighing up the benefits versus the concerns. and two—year—old emily here is part of a study they could change the way with perceived screen time. we perceive screen time. researchers are three years into their quest to find out what the long—term consequences are likely to be. here, it‘s all about keeping focus on the apple while attention is being called upon elsewhere. the kids reactions are being recorded, and they will be combined with markers in their day—to—day lives. parents have a lot of assumptions and maybe fears about how these screens may be influencing their child‘s behaviour. but a lot of the science behind that is actually based on tv, which is a very different experience to these interactive mobile devices that can be used in different ways. so we wanted to make sure that we were doing studies

that these new devices. and that means there is not much science out there right now. a lot of the concerns parents have not been backed up by scientific evidence. we have found that within the children who are using the touchscreen devices, that the earlier that they actually use a device interactively, the earlier that they reach real world motor milestones. so, for instance, if you are playing with a kid, one of the milestones you can look at is if they can stack blocks together. and we found that the kids that actively use a touchscreen earlier are reaching that real—world milestone earlier. but, importantly, we have not seen any signs of delays in language development or in whole body movement development — so walking or crawling, which some parents might have been concerned about. the study also looks at how kids regulate themselves might the point at which they might choose to switch off. make sure you interact the real world and don‘t stay online too long. everybody knows it can be lonely when you start a new school. this interactive experience explores

the idea that technology may make us feel pulled in many directions. but sometimes we need to focus. because i don't suppose they get out much. and that focus should probably not be on taking selfies. or not according to this, a 1—woman show at the festival, entitled random selfies. it highlights the loneliness that children — or anyone — can feel in our increasingly connected world. so it is about loretta, an 11—year—old girl. it is basically about her discovering loneliness for the first time. and being in a world that is very heavy social media. so being included in that but feeling that distance. what do you hope that people will go away thinking and feeling after seeing this? i think one of the main things is that loneliness is present, it‘s there, but also that it‘s just about communication, and just about opening up and being able, as loretta is, to express herself to people

what it is to be lonely and to develop this realisation that it‘s notjust her, and although the social media platform is perhaps making herfeel distant, it can be positive, because you are connecting with people. meanwhile, the kids are clearly enjoying the workshops, proving, if nothing else, they still know how to have fun, when there‘s no phone or tablet to hand. that was lara looking at some of the efforts to help young people to get to grips with this crazy digital world that we‘re all living in. talking of craziness, if you‘re at the hay festival this week, so are we. we‘re doing a live show me some of which you can see in next week‘s programme. in the meantime, you can get in touch with us before that on facebook and twitter @bbcclick. thank you for watching.

we will see you soon. hello there. the weather once again looks in turbulent mood through the day ahead, because while there will be some spells of warm sunshine, there will also be some vicious thunderstorms, torrential downpours, which could lead to localised flooding and certainly the risk of some travel disruption, especially across central and southern parts of the uk. now, the earlier satellite picture shows that these showers and storms have been gathering across continental europe. they are drifting their way northwards at the moment, and these showers are going to start to show their hands during the first part of thursday. not a bad start for many, but with a lot of mist and murk and low cloud, few showers up towards the north—west, but it‘s these heavy downpours down

towards the south—east that we‘ll be keeping a close eye on. it‘s really hard to predict exactly where the worst of the weather will be but right across the south—east, east anglia and eventually into the midlands, wales and the south—west, there‘s there risk of some really intense, thundery downpours that could give enough rain to cause some flash flooding. across northern england, here we could see one or two showers breaking out through the day, once the cloud breaks up through the morning across northern ireland and scotland and the sun comes out, again there‘s the potential we‘ll see one or two isolated heavy showers, but the heaviest downpours always likely to be found in southern areas. a very warm and muggy day as well, 21 degrees in edinburgh, 21 in belfast and perhaps 23 in london if you get some sunshine. now, some of these showers and storms will continue to rumble through the evening and overnight as they drift westwards, but they will tend we suspect to fizzle away to some extent. a lot of cloud, some mist and murk around, and temperatures not dropping very far, 12 to 15 degrees, quite a muggy start to friday.

friday will start off with a lot of cloud, misty, murky conditions in places. we‘ll see sunshine developing but a scattering of showers and thunderstorms again in western parts this time through wales, northern ireland, north—west england and scotland for the most part. very slow—moving, heavy downpours, which again could cause issues with flooding. there will be some showers and thunderstorms in north—western areas by saturday, but a change in england and wales here, fewer showers, more in the way of sunshine. the weather turning quite a bit quieter in these southern areas as we go into the start of the weekend. still warm, you‘ll notice, up in the twenties. on sunday and monday, things looking generally quieter, not as many showers, more in the way of sunshine and things still generally feeling warm. welcome to bbc news, broadcasting to viewers in north america and around the globe. my name is mike embley. our top stories: a close aide of the north korean leader arrives in new york for talks about the trump—kim summit.

the disgraced film producer harvey weinstein is indicted on charges of rape and sexual assault. it was fake news. the russian journalist reportedly murdered in ukraine, is alive and well after all. translation: i'm sorry you had to experience it but there was no other way. sprinterfor hire. usain bolt is training in norway and looking for a job in the beautiful game.