FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2419301142> ?p ?o ?g. }

• W2419301142 abstract "Regularization has become a primary tool for developing reliable estimators of the covariance matrix in high-dimensional settings. To curb the curse of dimensionality, numerous methods assume that the population covariance (or inverse covariance) matrix is sparse, while making no particular structural assumptions on the desired pattern of sparsity. A highly-related, yet complementary, literature studies the specific setting in which the measured variables have a known ordering, in which case a banded population matrix is often assumed. While the banded approach is conceptually and computationally easier than asking for patternless sparsity, it is only applicable in very specific situations (such as when data are measured over time or one-dimensional space). This work proposes a generalization of the notion of bandedness that greatly expands the range of problems in which banded estimators apply. We develop convex regularizers occupying the broad middle ground between the former approach of patternless sparsity and the latter reliance on having a known ordering. Our framework defines bandedness with respect to a known graph on the measured variables. Such a graph is available in diverse situations, and we provide a theoretical, computational, and applied treatment of two new estimators. An R package, called ggb, implements these new methods." @default.
• W2419301142 created "2016-06-24" @default.
• W2419301142 creator A5076854744 @default.
• W2419301142 date "2016-06-01" @default.
• W2419301142 modified "2023-09-27" @default.
• W2419301142 title "Graph-Guided Banding of the Covariance Matrix" @default.
• W2419301142 cites W1587026990 @default.
• W2419301142 cites W1942510265 @default.
• W2419301142 cites W1959730594 @default.
• W2419301142 cites W1962147060 @default.
• W2419301142 cites W1974324645 @default.
• W2419301142 cites W1989727964 @default.
• W2419301142 cites W1990948184 @default.
• W2419301142 cites W1995436190 @default.
• W2419301142 cites W2001334414 @default.
• W2419301142 cites W2008681993 @default.
• W2419301142 cites W2020370559 @default.
• W2419301142 cites W2040373108 @default.
• W2419301142 cites W2052386156 @default.
• W2419301142 cites W2057535756 @default.
• W2419301142 cites W2062125287 @default.
• W2419301142 cites W2067567045 @default.
• W2419301142 cites W2073681337 @default.
• W2419301142 cites W2081746825 @default.
• W2419301142 cites W2101631795 @default.
• W2419301142 cites W2112090702 @default.
• W2419301142 cites W2113968881 @default.
• W2419301142 cites W2132555912 @default.
• W2419301142 cites W2135046866 @default.
• W2419301142 cites W2138019504 @default.
• W2419301142 cites W2145143018 @default.
• W2419301142 cites W2151128232 @default.
• W2419301142 cites W2170866857 @default.
• W2419301142 cites W229097380 @default.
• W2419301142 cites W2339801242 @default.
• W2419301142 cites W2472487723 @default.
• W2419301142 cites W2622480976 @default.
• W2419301142 cites W2763292376 @default.
• W2419301142 cites W2913535645 @default.
• W2419301142 cites W2951711871 @default.
• W2419301142 cites W2952338048 @default.
• W2419301142 cites W2963273504 @default.
• W2419301142 cites W2963847550 @default.
• W2419301142 cites W3098365576 @default.
• W2419301142 cites W3099609308 @default.
• W2419301142 cites W3101788651 @default.
• W2419301142 hasPublicationYear "2016" @default.
• W2419301142 type Work @default.
• W2419301142 sameAs 2419301142 @default.
• W2419301142 citedByCount "0" @default.
• W2419301142 crossrefType "posted-content" @default.
• W2419301142 hasAuthorship W2419301142A5076854744 @default.
• W2419301142 hasConcept C105795698 @default.
• W2419301142 hasConcept C106487976 @default.
• W2419301142 hasConcept C111030470 @default.
• W2419301142 hasConcept C112680207 @default.
• W2419301142 hasConcept C11413529 @default.
• W2419301142 hasConcept C119857082 @default.
• W2419301142 hasConcept C126255220 @default.
• W2419301142 hasConcept C127413603 @default.
• W2419301142 hasConcept C132525143 @default.
• W2419301142 hasConcept C134306372 @default.
• W2419301142 hasConcept C144024400 @default.
• W2419301142 hasConcept C146978453 @default.
• W2419301142 hasConcept C149923435 @default.
• W2419301142 hasConcept C154945302 @default.
• W2419301142 hasConcept C159985019 @default.
• W2419301142 hasConcept C177148314 @default.
• W2419301142 hasConcept C178650346 @default.
• W2419301142 hasConcept C185142706 @default.
• W2419301142 hasConcept C185429906 @default.
• W2419301142 hasConcept C192562407 @default.
• W2419301142 hasConcept C204323151 @default.
• W2419301142 hasConcept C2524010 @default.
• W2419301142 hasConcept C2776135515 @default.
• W2419301142 hasConcept C2908647359 @default.
• W2419301142 hasConcept C33923547 @default.
• W2419301142 hasConcept C41008148 @default.
• W2419301142 hasConcept C80444323 @default.
• W2419301142 hasConceptScore W2419301142C105795698 @default.
• W2419301142 hasConceptScore W2419301142C106487976 @default.
• W2419301142 hasConceptScore W2419301142C111030470 @default.
• W2419301142 hasConceptScore W2419301142C112680207 @default.
• W2419301142 hasConceptScore W2419301142C11413529 @default.
• W2419301142 hasConceptScore W2419301142C119857082 @default.
• W2419301142 hasConceptScore W2419301142C126255220 @default.
• W2419301142 hasConceptScore W2419301142C127413603 @default.
• W2419301142 hasConceptScore W2419301142C132525143 @default.
• W2419301142 hasConceptScore W2419301142C134306372 @default.
• W2419301142 hasConceptScore W2419301142C144024400 @default.
• W2419301142 hasConceptScore W2419301142C146978453 @default.
• W2419301142 hasConceptScore W2419301142C149923435 @default.
• W2419301142 hasConceptScore W2419301142C154945302 @default.
• W2419301142 hasConceptScore W2419301142C159985019 @default.
• W2419301142 hasConceptScore W2419301142C177148314 @default.
• W2419301142 hasConceptScore W2419301142C178650346 @default.
• W2419301142 hasConceptScore W2419301142C185142706 @default.
• W2419301142 hasConceptScore W2419301142C185429906 @default.
• W2419301142 hasConceptScore W2419301142C192562407 @default.
• W2419301142 hasConceptScore W2419301142C204323151 @default.

• next