L
Lijun Ding
Researcher at Wright State University
Publications - 8
Citations - 602
Lijun Ding is an academic researcher from Wright State University. The author has contributed to research in topics: Computer science & Engineering. The author has an hindex of 2, co-authored 2 publications receiving 460 citations.
Papers
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Journal ArticleDOI
On the Canny edge detector
Lijun Ding,A. Ardeshir Goshtasby +1 more
TL;DR: It is shown that defining edges in this manner causes some obvious edges to be missed and how to revise the Canny edge detector to improve its detection accuracy is shown.
Proceedings ArticleDOI
Volumetric image registration by template matching
TL;DR: A template-matching approach to registration of volumetric images is described, and different similarity measures used in template matching are discussed and preliminary results are presented.
Journal ArticleDOI
Algorithmic Regularization in Model-free Overparametrized Asymmetric Matrix Factorization
TL;DR: This work shows that vanilla gradient descent with small random initialization sequentially recovers the principal components of the observed matrix, and provides a sharp characterization of the relationship between the approximation error, iteration complexity, initialization size and stepsize.
Journal ArticleDOI
Flat minima generalize for low-rank matrix recovery
TL;DR: This work focuses on the simplest class of overparameterized nonlinear models: those arising in low-rank matrix recovery, and shows that flat minima, measured by the trace of the Hessian, exactly recover the ground truth under standard statistical assumptions.
Journal ArticleDOI
A Validation Approach to Over-parameterized Matrix and Image Recovery
TL;DR: In this paper , the rank of the ground truth matrix is unknown a prior and use an overspecified factored representation of the matrix variable, where the global optimal solutions overfit and do not correspond to the underlying ground truth.