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Data Matching Techniques: A Technical Breakdown for Data Engineers

Abstract visualization of data matching techniques — glowing interconnected nodes and graph networks representing deterministic, fuzzy, and probabilistic record linkage methods

Data matching techniques fall into three categories: deterministic (exact rule-based), fuzzy or probabilistic (similarity-scored), and graph-based entity resolution. Choosing the wrong technique for your field type is the most common cause of match failure in enterprise pipelines.