3 papers
math.NA2022
The seriation problem in the presence of a double Fiedler value
Anna Concas, Caterina Fenu, Giuseppe Rodriguez +1
Seriation is a problem consisting of seeking the best enumeration order of a set of units whose interrelationship is described by a bipartite graph, that is, a graph whose nodes ar…
math.NA2021
A doubly relaxed minimal-norm Gauss-Newton method for underdetermined nonlinear least-squares problems
Federica Pes, Giuseppe Rodriguez
When a physical system is modeled by a nonlinear function, the unknown parameters can be estimated by fitting experimental observations by a least-squares approach. Newton's method…
cs.MS2017
PQSER: A Matlab package for spectral seriation
Anna Concas, Caterina Fenu, Giuseppe Rodriguez
The seriation problem is an important ordering issue which consists of finding the best ordering of a set of units whose interrelationship is defined by a bipartite graph. It has i…