Matches in SemOpenAlex for { <https://semopenalex.org/work/W2331257503> ?p ?o ?g. }
Showing items 1 to 73 of
73
with 100 items per page.
- W2331257503 abstract "In Least Squares (LS), the linearized functional model betweenM observables and N unknown parameters is given. LS provides estimates of parameters, observables, residuals and a posteriori variance. To identify outliers and to estimate accuracies and reliabilities, tests on the model and on the individual residuals can be performed at different levels of significance and power. However, LS is not robust: one outlier could be spread into all the residuals and its identification is difficult. A possible solution to this problem is given by a Leave One Block Out approach. Let’s suppose that the observation vector can be decomposed into m sub-vectors (blocks) that are reciprocally uncorrelated: in the case of completely uncorrelated observations, m = M. A suspected block is excluded from the adjustment, whose results are used to check it. Clearly, the check is more robust, because one outlier in the excluded block does not affect the adjustment results. The process can be repeated on all the blocks, but can be very slow, because m adjustments must be computed. To efficiently apply Leave One Block Out, an algorithm has been studied. The usual LS adjustment is performed on all the observations to obtain the ’batch’ results. The contribution of each block is subtracted from the batch results by algebraic decompositions, with a minimal computational effort: this holds for parameters, a posteriori residuals and variance. Therefore all the blocks can be checked. In the paper, the algorithm is discussed. Two examples of ELOBO application are presented: the first testifies ELOBO reliability against classical LS tests. In the second, ELOBO numerical efficiency is analyzed." @default.
- W2331257503 created "2016-06-24" @default.
- W2331257503 creator A5041628949 @default.
- W2331257503 creator A5068739292 @default.
- W2331257503 date "2013-01-01" @default.
- W2331257503 modified "2023-09-24" @default.
- W2331257503 title "An Efficient Leave One Block Out approach to identify outliers" @default.
- W2331257503 doi "https://doi.org/10.1515/jag-2012-0030" @default.
- W2331257503 hasPublicationYear "2013" @default.
- W2331257503 type Work @default.
- W2331257503 sameAs 2331257503 @default.
- W2331257503 citedByCount "10" @default.
- W2331257503 countsByYear W23312575032017 @default.
- W2331257503 countsByYear W23312575032018 @default.
- W2331257503 countsByYear W23312575032019 @default.
- W2331257503 countsByYear W23312575032020 @default.
- W2331257503 countsByYear W23312575032021 @default.
- W2331257503 countsByYear W23312575032022 @default.
- W2331257503 countsByYear W23312575032023 @default.
- W2331257503 crossrefType "journal-article" @default.
- W2331257503 hasAuthorship W2331257503A5041628949 @default.
- W2331257503 hasAuthorship W2331257503A5068739292 @default.
- W2331257503 hasConcept C105795698 @default.
- W2331257503 hasConcept C111472728 @default.
- W2331257503 hasConcept C11413529 @default.
- W2331257503 hasConcept C114614502 @default.
- W2331257503 hasConcept C121332964 @default.
- W2331257503 hasConcept C121955636 @default.
- W2331257503 hasConcept C138885662 @default.
- W2331257503 hasConcept C144133560 @default.
- W2331257503 hasConcept C169345407 @default.
- W2331257503 hasConcept C196083921 @default.
- W2331257503 hasConcept C2777210771 @default.
- W2331257503 hasConcept C32848918 @default.
- W2331257503 hasConcept C33923547 @default.
- W2331257503 hasConcept C62520636 @default.
- W2331257503 hasConcept C75553542 @default.
- W2331257503 hasConcept C79337645 @default.
- W2331257503 hasConceptScore W2331257503C105795698 @default.
- W2331257503 hasConceptScore W2331257503C111472728 @default.
- W2331257503 hasConceptScore W2331257503C11413529 @default.
- W2331257503 hasConceptScore W2331257503C114614502 @default.
- W2331257503 hasConceptScore W2331257503C121332964 @default.
- W2331257503 hasConceptScore W2331257503C121955636 @default.
- W2331257503 hasConceptScore W2331257503C138885662 @default.
- W2331257503 hasConceptScore W2331257503C144133560 @default.
- W2331257503 hasConceptScore W2331257503C169345407 @default.
- W2331257503 hasConceptScore W2331257503C196083921 @default.
- W2331257503 hasConceptScore W2331257503C2777210771 @default.
- W2331257503 hasConceptScore W2331257503C32848918 @default.
- W2331257503 hasConceptScore W2331257503C33923547 @default.
- W2331257503 hasConceptScore W2331257503C62520636 @default.
- W2331257503 hasConceptScore W2331257503C75553542 @default.
- W2331257503 hasConceptScore W2331257503C79337645 @default.
- W2331257503 hasIssue "1" @default.
- W2331257503 hasLocation W23312575031 @default.
- W2331257503 hasOpenAccess W2331257503 @default.
- W2331257503 hasPrimaryLocation W23312575031 @default.
- W2331257503 hasRelatedWork W1591613737 @default.
- W2331257503 hasRelatedWork W1605974327 @default.
- W2331257503 hasRelatedWork W2017209791 @default.
- W2331257503 hasRelatedWork W2091230523 @default.
- W2331257503 hasRelatedWork W2156031868 @default.
- W2331257503 hasRelatedWork W2331257503 @default.
- W2331257503 hasRelatedWork W2618279083 @default.
- W2331257503 hasRelatedWork W3131511167 @default.
- W2331257503 hasRelatedWork W45618339 @default.
- W2331257503 hasRelatedWork W780220278 @default.
- W2331257503 hasVolume "7" @default.
- W2331257503 isParatext "false" @default.
- W2331257503 isRetracted "false" @default.
- W2331257503 magId "2331257503" @default.
- W2331257503 workType "article" @default.