Kernel nonnegative representation-based classifier
Sign Up to like & getrecommendations! Published in 2022 at "Applied Intelligence"
DOI: 10.1007/s10489-021-02486-0
Abstract: Non-negativity is a critical and explainable property in linear representation-based methods leading to promising performances in the pattern classification field. Based on the non-negativity, a powerful linear representation-based classifier was proposed, namely non-negative representation-based classifier… read more here.
Keywords: representation; representation based; based classifier; linear representation ... See more keywords
Breaking the resolution limit in photoacoustic imaging using non-negativity and sparsity
Sign Up to like & getrecommendations! Published in 2020 at "Photoacoustics"
DOI: 10.1016/j.pacs.2020.100191
Abstract: The spatial resolution achievable in photoacoustic imaging decreases with the imaging depth, resulting in blurred images for deeper structures. Apart from technical limitations, the ultimate resolution limit results from the second law of thermodynamics. The… read more here.
Keywords: resolution; resolution limit; non negativity; photoacoustic imaging ... See more keywords
A PET reconstruction formulation that enforces non-negativity in projection space for bias reduction in Y-90 imaging.
Sign Up to like & getrecommendations! Published in 2018 at "Physics in medicine and biology"
DOI: 10.1088/1361-6560/aaa71b
Abstract: Most existing PET image reconstruction methods impose a nonnegativity constraint in the image domain that is natural physically, but can lead to biased reconstructions. This bias is particularly problematic for Y-90 PET because of the… read more here.
Keywords: reconstruction; pet reconstruction; reconstruction formulation; non negativity ... See more keywords
Systems of Linear Equations with Non-Negativity Constraints: Hyper-Rectangle Cover Theory and Its Applications
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DOI: 10.3390/math11102338
Abstract: In this paper, a novel hyper-rectangle cover theory is developed. Two important concepts, the cover order and the cover length, are introduced. We construct a specific échelon form of the matrix in the same manner… read more here.
Keywords: cover; non negativity; cover theory; negativity constraints ... See more keywords