More like background noise—a reflex so ingrained I stopped hearing it. Sorry for asking. Sorry for needing. Sorry for taking ...

Did you know that some countries see belching as a compliment to the chef? And that's just one of many "rude" manners that are actually considered polite in other cultures. Minding your manners around ...

Abstract: Emotion recognition has attracted attention in recent years. It is widely used in healthcare, teaching, human-computer interaction, and other fields. Human emotional features are often used ...