Aggregation

Aggregation may refer to:

Business and economics

 * Aggregation problem (economics)
 * Purchasing aggregation, the joining of multiple purchasers in a group purchasing organization to increase their buying power
 * Community Choice Aggregation, the joining of geographically contiguous communities to bypass a conventional energy utility monopoly and seek a greener energy service

Computer science and telecommunication

 * Aggregate function, a type of function in data processing
 * Aggregation, a form of object composition in object-oriented programming
 * Link aggregation, using multiple Ethernet network cables/ports in parallel to increase link speed
 * Packet aggregation, joining multiple data packets for transmission as a single unit to increase network efficiency
 * Route aggregation, the process of forming a supernet in computer networking
 * Aggregation, a process by which Australian country television markets were combined in the late 1980s and 1990s; see Regional television in Australia

Natural sciences and statistics

 * Aggregation (ethology), any gathering of organisms
 * Aggregation of soil granules to form soil structure
 * Particle aggregation, direct mutual attraction between particles (atoms or molecules) via van der Waals forces or chemical bonding
 * The accumulation of platelets to the site of a wound to form a platelet plug or a thrombus
 * Flocculation, a process where a solute comes out of solution in the form of floccules or flakes
 * Overdispersion or statistical aggregation, where the variance of a distribution is higher than which we expect.
 * Aggregation pheromone
 * Protein aggregation, the aggregation of mis-folded proteins

Other uses

 * Aggregation (linguistics), a merging of syntactic constituents
 * Aggregation (magazine), a 2010–2012 Canadian online magazine