During a two-month period, Eric Hom enhanced the BigData2025-Rev/p3 repository by developing robust data cleaning and regional analysis features using Python and PySpark. He improved the DataCleaner pipeline to map region codes to descriptive labels and categorize urban or rural designations, which increased data interpretability and labeling accuracy. Eric also introduced a total adult population metric, refining demographic analyses. In February, he delivered a PySpark-based script that reads ORC files, filters and aggregates population data by year and region, and exports race-based breakdowns as CSVs. His work demonstrated depth in data engineering, transformation, and scalable analytics pipeline design.