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- Q5227332 subject Q7015116.
- Q5227332 abstract "Data pre-processing is an important step in the data mining process. The phrase "garbage in, garbage out" is particularly applicable to data mining and machine learning projects. Data-gathering methods are often loosely controlled, resulting in out-of-range values (e.g., Income: −100), impossible data combinations (e.g., Sex: Male, Pregnant: Yes), missing values, etc. Analyzing data that has not been carefully screened for such problems can produce misleading results. Thus, the representation and quality of data is first and foremost before running an analysis.If there is much irrelevant and redundant information present or noisy and unreliable data, then knowledge discovery during the training phase is more difficult. Data preparation and filtering steps can take considerable amount of processing time. Data pre-processing includes cleaning, normalization, transformation, feature extraction and selection, etc. The product of data pre-processing is the final training set. Kotsiantis et al. (2006) present a well-known algorithm for each step of data pre-processing.".
- Q5227332 wikiPageExternalLink dataprocessing.aixcape.org.
- Q5227332 wikiPageWikiLink Q1026626.
- Q5227332 wikiPageWikiLink Q1152398.
- Q5227332 wikiPageWikiLink Q1172378.
- Q5227332 wikiPageWikiLink Q1569381.
- Q5227332 wikiPageWikiLink Q172491.
- Q5227332 wikiPageWikiLink Q1757694.
- Q5227332 wikiPageWikiLink Q2539.
- Q5227332 wikiPageWikiLink Q3985153.
- Q5227332 wikiPageWikiLink Q4272815.
- Q5227332 wikiPageWikiLink Q446488.
- Q5227332 wikiPageWikiLink Q6878417.
- Q5227332 wikiPageWikiLink Q7015116.
- Q5227332 comment "Data pre-processing is an important step in the data mining process. The phrase "garbage in, garbage out" is particularly applicable to data mining and machine learning projects. Data-gathering methods are often loosely controlled, resulting in out-of-range values (e.g., Income: −100), impossible data combinations (e.g., Sex: Male, Pregnant: Yes), missing values, etc. Analyzing data that has not been carefully screened for such problems can produce misleading results.".
- Q5227332 label "Data pre-processing".