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The critical regularization value: Incorporating spatial smoothness to enhance signal detection in highly noisy fMRI data.
Xian Yang
Lei Nie
Paul M. Matthews
Valentina Tomassini
Zhiwei Xu
Yike Guo
Published in:
NER (2015)
Keyphrases
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signal detection
spatial smoothness
low signal to noise ratio
regularization term
graph cuts
weak signal
temporal continuity
cost function
random noise
total variation
regularization parameter