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In this paper we are discussing regarding the Swarm Intelligence and there some of the examples. Anything in group is said to a swarm. Intelligent behaviour from a large number of Simple Individuals is called as Swarm Intelligence. It is a collective Behaviour from the local interactions of the individuals with the each other. Individual co-ordinate from the decentralized control and self-organization. We can find swarm in colonies of ants, school of fishes, flocks of birds etc. In this paper we are seeing the examples of Swarm and their behaviour. we also see the various Swarm Intelligence models such as the Ant colony Optimization where is describes about the movement of ants, their behaviour, and how do it overcome the obstacles, in birds we see about the Particle swarm optimization it is based on the swarm intelligence and how the positions has to be placed based on the three principles. Next is the Bee colony optimization that deals with the behaviour of the bees, their interactions, also describes about the Movement and how they work in Swarm. Some of the techniques and algorithms are discussed in this paper.

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Digital voting is the use of electronic device, such as voting machines or an internet browser to cast vote. It has disadvantages like security of data and potential attacks such as DoS and DDoS attack. One way to solve these security credentials problems is through the blockchain technology. Blockchain technology embraces a decentralized system and the entire database is owned by many users that overcome the disadvantage of centralized system. The existing system has many security, confidentiality, and anonymity issues. These issues can be resolved by using blockchain technology. Here in the proposed system Ethereum blockchain is used, which enables smart contracts. Smart contracts can be written with solidity, which is object oriented programming language. The outcome of the project is it provides privacy by keeping individual’s vote secret by providing a unique transaction id to each voter. Eligibility is made once to vote and the transaction will be highly secure and encrypted.

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