31 citations
- National Taiwan UniversityTW2 papers
- National Yang Ming Chiao Tung UniversityTW2 papers
- Digital CatapultGB1 paper
- E-Da HospitalTW1 paper
- Institute of Mathematics, Academia SinicaTW1 paper
- National Taiwan Normal UniversityTW1 paper
- Peking UniversityCN1 paper
- Shanghai Jiao Tong UniversityCN1 paper
- UCL Biomedical Research CentreGB1 paper
- Universidade Estadual Paulista (Unesp)BR1 paper
- University College HospitalGB1 paper
- University College LondonGB1 paper
11 papers
Intrapapillary Capillary Loop Classification in Magnification Endoscopy: Open Dataset and Baseline Methodology
Luis C. Garcia-Peraza-Herrera, Martin Everson, Laurence Lovat +6
Purpose. Early squamous cell neoplasia (ESCN) in the oesophagus is a highly treatable condition. Lesions confined to the mucosal layer can be curatively treated endoscopically. We…
Matrix Completion via Nonconvex Regularization: Convergence of the Proximal Gradient Algorithm
Fei Wen, Rendong Ying, Peilin Liu +1
Matrix completion has attracted much interest in the past decade in machine learning and computer vision. For low-rank promotion in matrix completion, the nuclear norm penalty is c…
Spectral characterizations of two families of nearly complete bipartite graphs
Chia-an Liu, Chih-wen Weng
It is not hard to find many complete bipartite graphs which are not determined by their spectra. We show that the graph obtained by deleting an edge from a complete bipartite graph…
String-Averaging Expectation-Maximization for Maximum Likelihood Estimation in Emission Tomography
E. S. Helou, Y. Censor, T. -B. Chen +4
We study the maximum likelihood model in emission tomography and propose a new family of algorithms for its solution, called String-Averaging Expectation-Maximization (SAEM). In th…
Commutator subgroup of the Hecke group is not congruence
Cheng Lien Lang, Mong Lung Lang
We prove that the power subgroup and the commutator subgroup of the Hecke group are not congruence.
Wohlfahrt's Theorem for the Hecke group G_5
Cheng Lien Lang, Mong Lung Lang
Let K be a subgroup of the inhomogeneous Hecke group G_5 of finite index. Suppose that the geometric level of K is r. Then K is congruence if and only if K contains the principal c…