蝎子乐队
发表于2分钟前回复 :A witty, exhilarating and mind-expanding exploration of the word of our times - data - with mathematician Dr Hannah Fry. Following in the footsteps of BBC Four's previous gleefully nerdy, award-winning maths films The Joy of Stats, Tails you Win - The Science of Chance and The Joy of Logic, this new high-tech romp reveals exactly what data is and how it is captured, stored, shared and made sense of. Fry also tells the story of the engineers of the data age, people most of us have never heard of despite the fact they brought about a technological and philosophical revolution.For Hannah Fry, the joy of data is all about spotting patterns. She's Lecturer in the Mathematics of Cities at UCL as well as being the presenter of the BBC series Trainspotting Live and City in the Sky, and she sees data as the essential bridge between two universes - the tangible, noisy, messy world that we see and experience, and the clean, ordered, elegant world of maths, where everything can be captured beautifully with equations.Along the way the film reveals the connection between Scrabble scores and online movie streaming, explains why a herd of Wiltshire dairy cows are wearing pedometers, and uncovers the remarkable network map of Wikipedia. What's the mystery link between 'marmalade' and 'One Direction'?The Joy of Data also hails the giant contribution of Claude Shannon, the American mathematician and electrical engineer who, in an attempt to solve the problem of noisy telephone lines, devised a way to digitise all information. It was Shannon, father of the 'bit', who singlehandedly launched the 'information age'. Meanwhile, the green lawns of Britain's National Physical Laboratory host a race between its young apprentices in order to demonstrate how and why data moves quickly and successfully around modern data networks. It's all thanks to the brilliant technique first invented there in the 1960s by Welshman Donald Davies - packet switching - without which there would be no internet as we know it.But what of the future, big data and artificial intelligence? Should we be worried by the pace of change, and what our own data could and should be used for? Ultimately, Fry concludes, data has empowered all of us. We must have machines at our side if we're to find patterns in the modern-day data deluge. But, Fry believes, regardless of AI and machine learning, it will always take us to find the meaning in them.
牛飞
发表于5分钟前回复 :一九三零年代的上海顺和纱厂,女工素芬(白杨 饰)与妇女补习学校教员张忠良(陶金 饰)喜结连理。 一九三七年七月七日,素芬诞下一子。忠良为子取名抗生后不久,便加入救护队离开上海,并机智地在南京大屠杀中幸存下来。 一九三八年,忠良母(吴茵 饰)带素芬和抗生回到丹阳乡下。但是乡下也不太平,忠良弟忠民(高正 饰)不肯做走狗,上山打起了游击。 一九四零年,侵略者吊死了忠良父。素芬只得背子随婆回到上海,以对忠良的思念和期盼为支撑,在苦难中挣扎求生。 一九四一年,被俘后成功逃脱的忠良辗转到达重庆,困苦中只得投靠故交王丽珍(舒绣文 饰),并慢慢被堕落的物质生活所引诱,开始迷失自己。 一九四五年,日本投降,忠良和丽珍先后回到上海,住进丽珍表姐何文艳(上官云珠 饰)家。就在忠良与文艳厮混时,走投无路的素芬歪打正着被招入文艳家帮佣……