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- Data_pre-processing 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.".
- Data_pre-processing wikiPageID "12386904".
- Data_pre-processing wikiPageRevisionID "604377334".
- Data_pre-processing hasPhotoCollection Data_pre-processing.
- Data_pre-processing subject Category:Machine_learning.
- Data_pre-processing 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.".
- Data_pre-processing label "Data pre-processing".
- Data_pre-processing sameAs m.02w2jr0.
- Data_pre-processing sameAs Q5227332.
- Data_pre-processing sameAs Q5227332.
- Data_pre-processing wasDerivedFrom Data_pre-processing?oldid=604377334.
- Data_pre-processing isPrimaryTopicOf Data_pre-processing.