Recommendation Engine Market By Type (Collaborative Filtering, Content-based Filtering, Hybrid recommendation), By Deployment Model (On-Premises, Cloud), By Enterprise Size (Large Enterprises, Small and Medium Enterprises), By Application (Personalized Campaigns and Customer Delivery, Strategy Operations and Planning, Product Planning and Proactive Asset Management), By Industry Vertical (Retail and Consumer Goods, IT and Telecom, Healthcare and Life Science, BFSI, Media and Entertainment, Others): Global Opportunity Analysis and Industry Forecast, 2021-2031