Dedicated to

My daughter Ziqing，my wife Jing，my PhD supervisor Prof.Fausto Giunchiglia and all my students.

My grandma，Maria！

My mother，mentors and all my lab-mates in B524.

My daughter Lara Alicia，my girlfriend POR and all my students around the world，mainly those motivated students at Jilin University and UMinho that somehow challenged us to make them learn in one semester beyond the basic C，and to try new teaching approach that better fi ts the curriculum purpose，respectively.

"Don't wish it was easier，wish you were better.

Don't wish for less problems，wish for more skills.

Don't wish for less challenge，wish for more wisdom."