Mostra el registre d'ítem simple
Mixed intelligent-multivariate missing imputation
dc.contributor.author | Gibert, Karina |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Estadística i Investigació Operativa |
dc.date.accessioned | 2015-07-01T07:45:19Z |
dc.date.available | 2015-07-01T07:45:19Z |
dc.date.created | 2014-01-02 |
dc.date.issued | 2014-01-02 |
dc.identifier.citation | Gibert, Karina. Mixed intelligent-multivariate missing imputation. "International journal of computer mathematics", 02 Gener 2014, vol. 91, núm. 1, p. 85-96. |
dc.identifier.issn | 0020-7160 |
dc.identifier.uri | http://hdl.handle.net/2117/28477 |
dc.description.abstract | In real applications, important rates of missing data are often found and have to be pre-processed before the analysis. The literature for missing imputation is abundant. However, the most precise imputation methods require long time, and sometimes speci c software; this implies a signi cant delay to get nal results. The Mixed Intelligent-Multivariate Missing Im- putation (MIMMI) method is proposed as a hybrid missing imputation methodology based on clustering. MIMMI is a non parametric method that combines the prior expert knowledge with multivariate analysis without requiring assumptions on the probabilistic models of the variables (normality, exponentiality, etc). The proposed imputation values implicitly take into account the joint distribution of all variables and can be determined in a relatively short time. MIMMI uses the conditional mean according to the self-underlying structure of the dataset. It provides a good trade-o between accuracy and both simplicity and required time to data preparation. The mechanics of the method is illustrated with some case-studies, both synthetic and real applications related with human behavior. In both cases, acceptable quality results were obtained in short time. |
dc.format.extent | 12 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Matemàtiques i estadística::Estadística matemàtica::Anàlisi multivariant |
dc.subject | Àrees temàtiques de la UPC::Matemàtiques i estadística::Investigació operativa::Programació matemàtica |
dc.subject.lcsh | Multivariate analysis |
dc.subject.lcsh | Artificial intelligence |
dc.subject.other | BORDERLINE PERSONALITY-DISORDER |
dc.subject.other | HEALTH SYSTEMS |
dc.subject.other | clustering |
dc.subject.other | multivariate imputation |
dc.subject.other | prior expert knowledge |
dc.title | Mixed intelligent-multivariate missing imputation |
dc.type | Article |
dc.subject.lemac | Anàlisi multivariable |
dc.subject.lemac | Intel·ligència artificial |
dc.contributor.group | Universitat Politècnica de Catalunya. KEMLG - Grup d'Enginyeria del Coneixement i Aprenentatge Automàtic |
dc.identifier.doi | 10.1080/00207160.2013.783209 |
dc.description.peerreviewed | Peer Reviewed |
dc.subject.ams | 62H Multivariate analysis |
dc.subject.ams | 68T Artificial intelligence |
dc.relation.publisherversion | http://www.tandfonline.com/doi/abs/10.1080/00207160.2013.783209#.U3NIvCj66jE |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 14120251 |
dc.description.version | Postprint (published version) |
local.citation.author | Gibert, Karina |
local.citation.publicationName | International journal of computer mathematics |
local.citation.volume | 91 |
local.citation.number | 1 |
local.citation.startingPage | 85 |
local.citation.endingPage | 96 |
Fitxers d'aquest items
Aquest ítem apareix a les col·leccions següents
-
Articles de revista [124]
-
Articles de revista [719]