郑建鹏
发表于6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.
吴越
发表于2分钟前回复 : 日本大学生夜神月在捡到一本“死亡笔记”后人生起了巨大变化,该笔记本上的规则声称,任何人只要想着某个人的脸、同时将该人的姓名写在死亡笔记上,被写上名字的人就会死亡。月最初并不相信其效力,但在实验之后验证了其效力,并与笔记本的原持有者死神流愚见面。之后,夜神月开始以笔记本杀死世界上的罪犯,成为闻名世界的连环杀手“基拉”。 基拉的犯行引起国际刑警组织的注意,但他们查不出任何结果。这一案件最后引起了L的注意,L是一位神秘的天才侦探,他靠着与国际刑警组织和日本警方的合作,推断出基拉位在关东地区。于是、夜神月与L这两个天才开始互相刺探对方的身份,展开了智力对决。 在月入侵了身为日本警察高层的父亲电脑后、从数据库里找到更多的罪犯档案,但L也因此发现基拉可能和日本警方联系,因此L派出美国联邦调查局(FBI)跟踪月,但月发现到这点并杀死了FBI探员雷·岩松,雷·岩松的未婚妻南空直美为了复仇而开始搜查,月注意到她后用计杀死了她。