1.1 What's big data? 7 Copyright 2019 by Xiaoyu Li
Copyright © 2019 by Xiaoyu Li. 7 1.1 What’s big data?
(1)Background Global Information Storage Capacity 2007 ANALOG 19 exabytes in optimally compressed bytes .Paper,film,audiotape and vinyl:6% Analogvideotapes (VHS,etc):94%ANALOG Portable media,flash drives:2% Portable hard disks:2.4% DIGITAL CDs and minidisks 6.8% Computer servers and mainframes:8.9% 2000 Digital tape:11.8% 1986 1993 ANALOG 2.6 exabytes ANALOG STORAGE DVD/Blu-ray:22.8% DIGITAL DIGITAL STORAGE 0.02 exabytes PC hard disks:44.5% 2002: 123 billion gigabytes “beginning of the digital age" 50% %digital: Others:1%(incl.chip cards memory cards floppy disks mobile phones,PDAs,cameras/camcorders,video games) 1% 3% 25% 94% DIGITAL 8 Source:Hilbert,M.,Lopez,P.(2011).The World's Technological Capacityto Store,Communicate,and 280 exabytes Compute Information.Science,332(6025),60-65.http://www.martinhilbert.net/WorldinfoCapacity.html
8 （1） Background
(2)Development Media/Entertainm Healthcare 6 BILLION = 87% nro wadwide 时hewn时sgpd 1.01 BILLION 604 MILLION a00045年0南d0 g1-in mathy temmobis de在5 90% 400 MILLION = 84 MILLION Gbutidihao01.02-2000cCbutadam> DNA fMRI/DTI Messenger Watch oFanenta TCCAGGTAGTGGACGTTACACCTAc CATGGCTCCTCCACCTAACCAGCAG 6M3:W代2hS Gene GTATGGACAGCAATATGGGCAACAA 根为有用y物 90n05000t女0t ACCAGGTccrcccccTArGGcTTAT f14714:34k12o正台Mn2 BIG Sequence Industry DATA E-commerce "o w Sensor Manufacture Wall Mart:2.5 PB/hour Stock Data ATA 9 Copyright 2019 by Xiaoyu Li. *Note:some pictures derived from internet
Copyright © 2019 by Xiaoyu Li. 9 （2） Development fMRI/ DTI Stock Data BIG DATA Media/Entertainm et Wall Mart: 2.5 PB/hour Industry Healthcare DNA *Note: some pictures derived from internet E-commerce Gene Sequence Messenger Watch Sensor Manufacture
(3)Data Stream Internet Surveillance SRAM SPAM FILTER Spam Filtering DATA Network Intrusion Industry STREAM Mobile Smart Sensor Phone *Note:some pictures derived from internet ATA 10 Copyright 2019 by Xiaoyu Li
Copyright © 2019 by Xiaoyu Li. 10 （3） Data Stream DATA STREAM Internet Industry Surveillance Sensor Network Intrusion Smart Phone Spam Filtering Mobile *Note: some pictures derived from internet
(4)Useful Applications 圭 中国南方电网 国家电网 STATE GRID 中石C OIL opec 中国石油 中海石油 ATA 11 Copyright 2019 by Xiaoyu Li
Copyright © 2019 by Xiaoyu Li. 11 （4） Useful Applications