This document discusses the growth of data and new opportunities it enables. It notes that we now create 2.5 exabytes of new data per day, and that 90% of all data in existence today was created in just the last two years. This data capture has become automatic and ubiquitous. It also discusses how large online courses and data collection in education is allowing research to be more definitive and immediate, by tracking student interactions and identifying concepts that many students are misunderstanding.
13. giga = 10 2続
tera = 10孫族 2癌
peta = 10孫 2汲
exa* = 10孫 2金
zetta = 10族孫 2撃
yotta = 10族 2呉
We create 2.5 exabytes*
per day
90% of the data in the
world today was created
in the last two years
14. Data capture is automatic, ubiquitous, invisible
giga = 10 2続
tera = 10孫族 2癌
peta = 10孫 2汲
exa* = 10孫 2金
zetta = 10族孫 2撃
yotta = 10族 2呉
We create 2.5 exabytes*
per day
90% of the data in the
world today was created
in the last two years
33. nyti.ms/edge12data
In most education research, teaching methods are
tested in small groups, comparing results in different
classrooms. Conclusions can be uncertain and are often
not available until the end of school semester.
But in an online class of 20,000 students, whose
every mouse click is tracked in real time, the
research can be more definitive and immediate.
If 5,000 people had the same wrong answer, its
obvious a concept is not getting through, and you have
a clear path that shows where students went wrong.
Daphne Koller, Professor, Stanford AI Lab