Express
Guests manually choose Happy, Calm, Tired, Stressed, or Focused.
System overview
Coffee recommendations you can understand.
XC Café is a local-network smart-table experience. It uses an explainable weighted formula—not deep learning or a medical mood assessment—to rank safe, available drinks.
The four-step experience
Match
Preferences, budget, availability, allergies, history, feedback and popularity shape scores.
Enjoy
Three ranked drinks show prices, details and transparent reasons.
Improve
Bounded feedback signals gradually improve future ranking.
Five benefits
Enhanced customer experience, increased sales and thoughtful upselling, personalized engagement, data-driven insights, and stronger customer loyalty.
Privacy and limits
Guest use needs no account or camera. The prototype stores a random session token, browser information, interactions, orders and feedback on the café’s local MySQL server. It is not a medical system, does not infer emotion from faces, and does not process payments. Staff should apply retention and backup policies appropriate to the café.