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![Spammer group detection and diversification of customers’ reviews [PeerJ]](https://dfzljdn9uc3pi.cloudfront.net/2021/cs-472/1/fig-4-full.png "Spammer group detection and diversification of customers’ reviews [PeerJ]")
![Spammer group detection and diversification of customers’ reviews [PeerJ]](https://dfzljdn9uc3pi.cloudfront.net/2021/cs-472/1/fig-6-full.png "Spammer group detection and diversification of customers’ reviews [PeerJ]")
