4. INFORMATION VISUALIZATION
“ Using visual representations and interaction techniques,
which take advantage of the human eye’s
broad bandwidth pathway into the mind,
to allow users to see, explore, and understand
large amounts of information at once.”
6. Anscombe’s quartet
#1 #2 #3 #4
Mean of X 11.0
Variance of X 10.0
Mean of Y 7.5
Variance of Y 3.75
Correlation between X and Y 0.816
Linear regression y = 3.0 +0.5x
Electronic medical records (EMRs)
“ To improve the quality of our health care while lowering its cost,
we will make the immediate investments necessary to ensure that,
within ﬁve years, all of America's medical records are computerized.
This will cut waste, eliminate red tape and reduce the need
to repeat expensive medical tests.
But it just won't save billions of dollars and thousands of jobs;
it will save lives by reducing the deadly but preventable medical errors
that pervade our health-care system.”
[President Barack Obama – Jan 2009]!
22. Case study
using a contrast agent
e.g. Iodine, Barium x
- Amino Acid
Damage to the kidney
- Levels in blood reflect kidney function
23. Data : contrast & creatinine
CREAT- Normal level of Creatinine
RADIOLOGY Radiographic exam (with contrast)
CREAT-H High level of Creatinine (bad)
Jan Feb Mar Apr
40. collected visual representation
large eye interactions
EMRs + INFO. VIS.
A lot of data! Help understand data!
Save more lives
Patientslikeme / i2b2 / BTRIS
Many case studies / etc.