Pernille Hansen
Alzheimer's disease (AD) Shrinkage and deformation of Corpus Callosum (CC)
Exercise: Discuss how the hypothesis can be tested from a data set of MRI's from healthy and non-healthy brains.
Hypothesis: (AD) can be detected from shape of (CC).
Data set:
Example:
Data set:
Mean value:
Exercise: Cooperatively come up with two properties a mean value should have and based on these, suggest a new mean value for the data set.
Idea: Mean value should:
Def: The mean value of the points is the point that minimizes
Hypothesis: (AD) can be detected from shape of (CC).
Mean value for healthy and sick can be computed and compared!
Exercise: Come up with an example of data, that could be considered 'nonlinear'
ILO's
Data set:
Mean value
Data set:
Limitations of
Problems?
3. Cooperatively come up with two properties a mean value should have.
4. Based on these, suggest a new point point for the data set.
(NOT A LINEAR SPACE)
Idea: Mean value should be the point that minimizes the distance to
Distance of two points :
Data set:
Mean value:
Data set:
Using only words, write down which steps are needed to find the distance mean value of a data set of points on a sphere.