Map-reduce-merge
Hung‐Chih Yang, Ali Dasdan, Ruey-Lung Hsiao, D. Stott Parker · 2007
Map-Reduce is a programming model that enables easy development of scalable parallel applications to process a vast amount of data on large clusters of commodity machines. Through a simple interface with two functions, map and reduce, this model facilitates parallel implementation of many real-world tasks such as data processing jobs for search engines and machine learning.