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Usually, these data are incomplete or corrupt and the imputation of the missing values is a priority in order to obtain complete datasets, solving the uncertainty and vagueness of existing problems to manage complexity. In the present paper, multiple\u2010regression techniques and Artificial Neural Network models are applied to approximate the absent ozone values from five explanatory variables containing air\u2010quality information. To compare the different imputation methods, real\u2010life data from six data\u2010acquisition stations from the region of Castilla y Le\u00f3n (Spain) are gathered in different ways and then analyzed. The results obtained in the estimation of the missing values by applying these techniques and models are compared, analyzing the possible causes of the given response.<\/jats:p>","DOI":"10.1155\/2018\/7238015","type":"journal-article","created":{"date-parts":[[2018,3,8]],"date-time":"2018-03-08T23:31:19Z","timestamp":1520551879000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["Neural Models for Imputation of Missing Ozone Data in Air\u2010Quality Datasets"],"prefix":"10.1155","volume":"2018","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1614-9075","authenticated-orcid":false,"given":"\u00c1ngel","family":"Arroyo","sequence":"first","affiliation":[]},{"given":"\u00c1lvaro","family":"Herrero","sequence":"additional","affiliation":[]},{"given":"Ver\u00f3nica","family":"Tricio","sequence":"additional","affiliation":[]},{"given":"Emilio","family":"Corchado","sequence":"additional","affiliation":[]},{"given":"Micha\u0142","family":"Wo\u017aniak","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2018,3,8]]},"reference":[{"key":"e_1_2_7_1_2","unstructured":"The Pubchem Project Ozone https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/."},{"key":"e_1_2_7_2_2","doi-asserted-by":"publisher","DOI":"10.1029\/91JD03014"},{"key":"e_1_2_7_3_2","unstructured":"United States Environmental Protection Agency What is Ozone? https:\/\/www.epa.gov\/ozone-pollution-and-your-patients-health\/what-ozone."},{"key":"e_1_2_7_4_2","unstructured":"United States Environmental Protection Agenc Health and Environmental Effects of Ozone Layer Depletion https:\/\/www.epa.gov\/ozone-layer-protection\/health-and-environmental-effects-ozone-layer-depletion."},{"key":"e_1_2_7_5_2","unstructured":"European Union Law Directive 2008\/50\/EC of the European Parliament and of the Council of 21 May 2008 on ambient air quality and cleaner air for Europe 2008 http:\/\/eur-lex.europa.eu\/legal-content\/en\/ALL\/?uri=CELEX:32008L0050."},{"key":"e_1_2_7_6_2","doi-asserted-by":"publisher","DOI":"10.3390\/s141120382"},{"key":"e_1_2_7_7_2","article-title":"A Comparison of Six Methods for Missing Data Imputation","author":"Schmitt P.","year":"2015","journal-title":"Journal of Biometrics Biostatistics"},{"key":"e_1_2_7_8_2","doi-asserted-by":"publisher","DOI":"10.1076\/edre.7.4.353.8937"},{"key":"e_1_2_7_9_2","doi-asserted-by":"publisher","DOI":"10.1093\/jigpal\/jzx050"},{"key":"e_1_2_7_10_2","doi-asserted-by":"publisher","DOI":"10.1191\/096228099671525676"},{"key":"e_1_2_7_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.atmosenv.2004.02.026"},{"key":"e_1_2_7_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.atmosenv.2006.06.040"},{"key":"e_1_2_7_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.chemolab.2014.02.007"},{"key":"e_1_2_7_14_2","doi-asserted-by":"publisher","DOI":"10.1201\/9781439821862"},{"key":"e_1_2_7_15_2","doi-asserted-by":"publisher","DOI":"10.1080\/08839514.2017.1279046"},{"key":"e_1_2_7_16_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00521-009-0295-6"},{"key":"e_1_2_7_17_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00521-011-0619-1"},{"key":"e_1_2_7_18_2","doi-asserted-by":"publisher","DOI":"10.1111\/coin.12048"},{"key":"e_1_2_7_19_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jhydrol.2007.04.020"},{"key":"e_1_2_7_20_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.neucom.2010.06.021"},{"key":"e_1_2_7_21_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.neunet.2010.09.008"},{"key":"e_1_2_7_22_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1751-5823.2010.00103.x"},{"key":"e_1_2_7_23_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.neucom.2015.03.108"},{"key":"e_1_2_7_24_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.asoc.2014.09.052"},{"key":"e_1_2_7_25_2","doi-asserted-by":"crossref","unstructured":"AzimS.andAggarwalS. 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