Delegated Proof-Of-Stake (DPoS) is a Proof of Stake consensus variant in which any coin holder votes by weight for their candidate in an election of witnesses (validators). Candidates with a majority of votes validate the blockchain until the next election.
The DPoS mechanism seeks to increase the speed of block creation and transaction without compromising the decentralized incentive structure underlying the blockchain.
PoS creates conditions for coin accumulation by holders. DpoS, on the other hand, makes the distribution of coins and influence in the network more even, allowing for greater decentralization.