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Opened 10 years ago

Last modified 9 years ago

#2335 closed enhancement

Data Preprocessing Improvements — at Version 13

Reported by: ehopf Owned by: ehopf
Priority: medium Milestone: HeuristicLab 3.3.12
Component: DataPreprocessing Version: 3.3.12
Keywords: Cc:

Description (last modified by ehopf)

Various data preprocessing improvements especially for data sets with many missing values. Furthermore this includes fixes for found defects in the data preprocessing components.

Defects

(1) Problem data generation fails with an Exception, if a user deletes one or more columns. (2) The generated classification problem data doesn´t keep the user defined positive class.

Features

(1) An option to display missing values within the Histogram view. (2) A possibility to delete columns in the DataGrid view. (3) Display Missing value information in the statistics available in the DataGrid view.

Change History (13)

comment:1 Changed 10 years ago by ehopf

  • Version changed from 3.3.11 to branch

comment:2 Changed 10 years ago by ehopf

  • Status changed from new to accepted

comment:3 Changed 10 years ago by ehopf

r12051: Branched HL.DataPreprocessing to implement improvements

comment:4 Changed 10 years ago by ehopf

r12052: created the HL.DataPreprocessing project subfolder in the DataPreprocessing branch

comment:5 Changed 10 years ago by ehopf

r12053: moved the HL.DataPreprocessing project to the appropriate subfolder

comment:6 Changed 10 years ago by ehopf

r12054: Branched HeuristicLab.DataPreprocessing.Views to implement the improvements

comment:7 Changed 10 years ago by ehopf

r12056: Created a solution file and adjusted the project settings of the DataPreprocessing Branch

comment:8 Changed 10 years ago by ehopf

r12058: Changed the logic of the ProblemDataCreator to avoid the access of a column that was deleted by the user before. Fixes Defect 1.

Last edited 10 years ago by ehopf (previous) (diff)

comment:9 Changed 10 years ago by ehopf

  • Description modified (diff)

comment:10 Changed 10 years ago by ehopf

r12062: Merged r12059 into branch.

comment:11 Changed 10 years ago by ehopf

  • Description modified (diff)

comment:12 Changed 10 years ago by ehopf

r12063: Added code to keep the user defined positive class in the generated problem data of a classification problem. (Defect 2 fix)

comment:13 Changed 10 years ago by ehopf

  • Description modified (diff)
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