The curves tag has no wiki summary.
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0answers
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Hilbert curves: bounds / probabilities of preserving neighbors
Hilbert Curves (Wikipedia) are space-filling curves said to "fairly well preserve locality".
Do you know any theoretical results here, such as bounds that neighbors within a radius of $\varepsilon$ ...
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0answers
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Matching curves
I've a large number of curves over a finite interval. Given a new curve C, I want to find a set of curves in the database s.t the area between a matched curve and C is less than a certain threshold.
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0answers
51 views
Which test to compare two datasets?
I have used a stimulus (stimulus1) in a perception test, to see if the participants perceive it as A or B in a forced choice task. (the stimulus is composed of several features f1,f2...)
Then I have ...
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0answers
46 views
NLME regression & curve comparison
I have two groups (patients & control) and each person was measured 3 times.
I use the nmlefitsa function of MATLAB for doing a regression over time for these ...
14
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2answers
382 views
Checking for a statistically significant peak
I have a set of data, $y$ and $x$. I would like to test the following hypothesis: There is a peak in $y$; that is as $x$ increases, $y$ first increases and then decreases.
My first idea was fitting ...
2
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3answers
127 views
Are there methods for automatically detecting features of a curve?
I have a raw discrete data(curves). I need to find methods for detecting features of each curve. Some example features:
1) Stable growing
2) Fast growing
3) Stable falling
4) Fast falling
5) And so ...
7
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5answers
1k views
Similarity measures between curves?
I would like to compute the measure of similarity between two ordered sets of points---the ones under User compared with the ones under Teacher:
The points are curves in 3D space, but I was ...
4
votes
1answer
228 views
Shape detection for time series data
I have a large collection of time series - measurements taken every 15 minutes (96 measurements in a day) over the span of 1 year at various different locations.
I've broken up each time series into ...
2
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2answers
166 views
Convex vs. concave curve - measurement or index
I am interested in a measurement or index that will tell me if a curve is more convex or concave versus a straight line.
This curve is sampled in n points and I know the x and y coordinates of these ...
0
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1answer
885 views
Tutorials for drawing an ROC curve
Are there tutorials you recommend that teach how to draw an ROC curve?
Thanks.
5
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2answers
727 views
Fit between two curves
I am trying to determine the fit between two curves (example shown below). Both curves are plotted here as a bunch of XY data points (not functions).
The curves represent the trajectories of two ...
