 Besides, to attract more customers to participate in the crowdsourcing FL  , we design an incentive mechanism , which awards participants with coins that can be used to purchase other services provided by the company .
<clarity>  Besides, to attract more customers to participate in the crowdsourcing FL  , we design an incentive mechanism , which awards participants with coins that can be used to purchase other services provided by the company .
 Besides, to attract more customers to participate in the crowdsourcing FL task , we design an incentive mechanism , which awards participants with coins that can be used to purchase other services provided by the company .