Comments (11)
Hi SmileTestData contains the datasets that I download from internet. As I don't own them, I cannot publish it in github. They are only used for unit tests. You can remove the dependency in eclipse or create a dummy project there. Thanks!
from smile.
please send us link for download dataset used in regression part or name of dataset
thanks
from smile.
- weka
- usps ocr
- uci machine learning repo
- chameleon
- many others
from smile.
please In my project indoor location I use SVR Regression
I need train svr offline using x,y location and received signal strength wifi ( build fingerprint database) for training in my location and build model after that predict new location for new signal strength will come online phase.
in SVR Code published Predict function in SVR takes an array of numbers as input and returns ONE numeric value as output. but I have two instances, for X and Y.
public double predict(T x);{
}
my question :
I can train two dimensional x,y together or each coordinate is considered as one output of SVR and trained independently ?
thanks
from smile.
Are you predicting signal strength based on location? If so, it is doable with SVR.
But if you predict location based on signal strength, it is impossible.
from smile.
I need predict location based signsl strength.
I Must train all diminsion for all coordinate xy independent.
train x
train y
for solve this problem?
or whats your suggested solution
many thanks
from smile.
In general, many locations have same signal strength. It is a one-to-many mapping (from signal strength to locations). It is not a function at all. Note that supervised learning is just to fit a function.
from smile.
Let consider the location doesn't have same signal strength from all access point in same time must be different values .
we will consider it fingerprint .
I can train all diminsion for xy and use svr
I read some paper use svr indoor wlan localization its doable? Because I have real
Value data and I must use regression.
from smile.
It is impossible for a mapping from low-dimensional to higher-dimension to be one-to-one mapping. In case of wlan localization, the intrinsic dimension is one if the signal is restricted to a very narrow area. That is what you want to fit. Then with some other information (e.g. your signal source location and direction), you map decouple it to (x, y). BTW, SVR has no advantage for this low dimensional problem.
from smile.
Yes I use orientation when record signal strength as measure value and I do 4 cluster for all orientation measured and I will train all cluster for all orientation (north south east wast) using svr.
I must do train for x and another train for y for all 4 cluster stored? In this case it douable?
Thanks alot for your support
from smile.
As I said, you should fit with something like distance instead of (x, y). then you reconstruct (x, y) with additional information.
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