Combining attention with spectrum to handle missing values on time series data without imputation Article Swipe
Yen-Pin Chen
,
Chien‐Hua Huang
,
Yuan–Hsun Lo
,
Yiying Chen
,
Feipei Lai
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.1016/j.ins.2022.07.124
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.1016/j.ins.2022.07.124
In the development of predictive models, the problem of missing data is a critical issue that traditionally requires a two-step analysis. Data scientists analyze the patterns of missing values, select variables, impute missing values on the basis of domain knowledge, and then train a model. Models typically have their input sizes hardcoded, and have limitations in handling data with high missing rates or changes in available variables. We propose an attention-based neural network combined with a novel real number representation, which requires little work on manually selecting variables, and in which missing data can be overlooked, making imputation unnecessary. In this proposed model, data analysis can be one step, omitting the first step of imputing missing values. The study included data on 32,709 intensive care unit (ICU) admissions and 60 healthcare variables from the Medical Information Mart for Intensive Care (MIMIC)-IV. The proposed algorithm yielded an area under the receiver operating characteristic curve (AUC) of 0.842 (95% CIs: 0.828–0.856) when predicting prolonged length of stay in the ICU, outperforming current approaches using imputation methods. The proposed algorithm can be applied to a range of problems in data science, as it addresses the issue of incomplete data with automatic variable selection.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1016/j.ins.2022.07.124
- OA Status
- hybrid
- Cited By
- 16
- References
- 46
- Related Works
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- OpenAlex ID
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All OpenAlex metadata
Raw OpenAlex JSON
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https://openalex.org/W4288456949Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1016/j.ins.2022.07.124Digital Object Identifier
- Title
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Combining attention with spectrum to handle missing values on time series data without imputationWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2022Year of publication
- Publication date
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2022-07-28Full publication date if available
- Authors
-
Yen-Pin Chen, Chien‐Hua Huang, Yuan–Hsun Lo, Yiying Chen, Feipei LaiList of authors in order
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-
https://doi.org/10.1016/j.ins.2022.07.124Publisher landing page
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YesWhether a free full text is available
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hybridOpen access status per OpenAlex
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https://doi.org/10.1016/j.ins.2022.07.124Direct OA link when available
- Concepts
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Missing data, Imputation (statistics), Computer science, Data mining, Receiver operating characteristic, Machine learningTop concepts (fields/topics) attached by OpenAlex
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16Total citation count in OpenAlex
- Citations by year (recent)
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2025: 1, 2024: 10, 2023: 5Per-year citation counts (last 5 years)
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46Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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| abstract_inverted_index.when | 159 |
| abstract_inverted_index.with | 58, 74, 196 |
| abstract_inverted_index.work | 83 |
| abstract_inverted_index.(AUC) | 153 |
| abstract_inverted_index.(ICU) | 126 |
| abstract_inverted_index.0.842 | 155 |
| abstract_inverted_index.basis | 36 |
| abstract_inverted_index.curve | 152 |
| abstract_inverted_index.first | 111 |
| abstract_inverted_index.input | 49 |
| abstract_inverted_index.issue | 14, 192 |
| abstract_inverted_index.novel | 76 |
| abstract_inverted_index.range | 182 |
| abstract_inverted_index.rates | 61 |
| abstract_inverted_index.sizes | 50 |
| abstract_inverted_index.step, | 108 |
| abstract_inverted_index.study | 118 |
| abstract_inverted_index.their | 48 |
| abstract_inverted_index.train | 42 |
| abstract_inverted_index.under | 147 |
| abstract_inverted_index.using | 171 |
| abstract_inverted_index.which | 80, 90 |
| abstract_inverted_index.32,709 | 122 |
| abstract_inverted_index.Models | 45 |
| abstract_inverted_index.domain | 38 |
| abstract_inverted_index.impute | 31 |
| abstract_inverted_index.length | 162 |
| abstract_inverted_index.little | 82 |
| abstract_inverted_index.making | 96 |
| abstract_inverted_index.model, | 102 |
| abstract_inverted_index.model. | 44 |
| abstract_inverted_index.neural | 71 |
| abstract_inverted_index.number | 78 |
| abstract_inverted_index.select | 29 |
| abstract_inverted_index.values | 33 |
| abstract_inverted_index.Medical | 134 |
| abstract_inverted_index.analyze | 23 |
| abstract_inverted_index.applied | 179 |
| abstract_inverted_index.changes | 63 |
| abstract_inverted_index.current | 169 |
| abstract_inverted_index.missing | 9, 27, 32, 60, 91, 115 |
| abstract_inverted_index.models, | 5 |
| abstract_inverted_index.network | 72 |
| abstract_inverted_index.problem | 7 |
| abstract_inverted_index.propose | 68 |
| abstract_inverted_index.values, | 28 |
| abstract_inverted_index.values. | 116 |
| abstract_inverted_index.yielded | 144 |
| abstract_inverted_index.analysis | 104 |
| abstract_inverted_index.combined | 73 |
| abstract_inverted_index.critical | 13 |
| abstract_inverted_index.handling | 56 |
| abstract_inverted_index.imputing | 114 |
| abstract_inverted_index.included | 119 |
| abstract_inverted_index.manually | 85 |
| abstract_inverted_index.methods. | 173 |
| abstract_inverted_index.omitting | 109 |
| abstract_inverted_index.patterns | 25 |
| abstract_inverted_index.problems | 184 |
| abstract_inverted_index.proposed | 101, 142, 175 |
| abstract_inverted_index.receiver | 149 |
| abstract_inverted_index.requires | 17, 81 |
| abstract_inverted_index.science, | 187 |
| abstract_inverted_index.two-step | 19 |
| abstract_inverted_index.variable | 198 |
| abstract_inverted_index.Intensive | 138 |
| abstract_inverted_index.addresses | 190 |
| abstract_inverted_index.algorithm | 143, 176 |
| abstract_inverted_index.analysis. | 20 |
| abstract_inverted_index.automatic | 197 |
| abstract_inverted_index.available | 65 |
| abstract_inverted_index.intensive | 123 |
| abstract_inverted_index.operating | 150 |
| abstract_inverted_index.prolonged | 161 |
| abstract_inverted_index.selecting | 86 |
| abstract_inverted_index.typically | 46 |
| abstract_inverted_index.variables | 131 |
| abstract_inverted_index.admissions | 127 |
| abstract_inverted_index.approaches | 170 |
| abstract_inverted_index.hardcoded, | 51 |
| abstract_inverted_index.healthcare | 130 |
| abstract_inverted_index.imputation | 97, 172 |
| abstract_inverted_index.incomplete | 194 |
| abstract_inverted_index.knowledge, | 39 |
| abstract_inverted_index.predicting | 160 |
| abstract_inverted_index.predictive | 4 |
| abstract_inverted_index.scientists | 22 |
| abstract_inverted_index.selection. | 199 |
| abstract_inverted_index.variables, | 30, 87 |
| abstract_inverted_index.variables. | 66 |
| abstract_inverted_index.(MIMIC)-IV. | 140 |
| abstract_inverted_index.Information | 135 |
| abstract_inverted_index.development | 2 |
| abstract_inverted_index.limitations | 54 |
| abstract_inverted_index.overlooked, | 95 |
| abstract_inverted_index.unnecessary. | 98 |
| abstract_inverted_index.outperforming | 168 |
| abstract_inverted_index.traditionally | 16 |
| abstract_inverted_index.0.828–0.856) | 158 |
| abstract_inverted_index.characteristic | 151 |
| abstract_inverted_index.attention-based | 70 |
| abstract_inverted_index.representation, | 79 |
| cited_by_percentile_year.max | 99 |
| cited_by_percentile_year.min | 91 |
| corresponding_author_ids | https://openalex.org/A5050430249 |
| countries_distinct_count | 1 |
| institutions_distinct_count | 5 |
| corresponding_institution_ids | https://openalex.org/I4210131804 |
| citation_normalized_percentile.value | 0.89981353 |
| citation_normalized_percentile.is_in_top_1_percent | False |
| citation_normalized_percentile.is_in_top_10_percent | True |