Aggregation may refer to uses in:

• 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 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 floc or flakes
  • Overdispersion or statistical aggregation, where the variance of a distribution is higher than expected
  • Aggregation pheromone
  • Protein aggregation, the aggregation of mis-folded proteins

See also

• Aggregate (disambiguation)
• Aggregator (disambiguation), a web site or computer software that aggregates syndicated web content
• Agr gation, in French-speaking countries, higher-level competitive examinations for teachers and professors

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