Swarm intelligence deals with natural and artificial system provides an efficient way for finding optimal solution. During the past few decades researches are trying to use these techniques to solve many problems in various fields. Recommender system is the one of the most important application of E-Commerce and it plays vital role in understanding the users' behavior or interest by which it increases the profit of sales or usage of services of a web site. This paper describes a study on swarm intelligence techniques to find the optimal solution and based on that recommendation process is done.

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Recommender System Swarm Intelligence Techniques Natural Inspired Techniques E-commerce