https://www.hpc-certification.org/wiki/ 2026-05-31T00:27:27+00:00 https://www.hpc-certification.org/wiki/ https://www.hpc-certification.org/wiki/_media/wiki/favicon.ico text/html 2025-03-10T19:24:01+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.hpc-certification.org/wiki/skill-tree/bda/4/2/b?rev=1741631041&do=diff BDA4.2 Pre-processing Pre-processing is a crucial phase in the Big Data Analytics process, focusing on improving data quality and format to ensure it is suitable for complex analysis. This module delves into advanced techniques for data cleaning, normalization, transformation, and reduction, aimed at preparing raw data efficiently for analytical tasks.