1. HEURISTICS AND LEARNING APPROACHES FOR SOLVING THE TRAVELING SALESMAN PROBLEM. Authors: GABRIELA ŞERBAN, CAMELIA-MIHAELA PINTEA.2. COMPONENT-BASED ANT SYSTEM FOR A BIOBJECTIVE ASSIGNMENT PROBLEM. Authors: CAMELIA-MIHAELA PINTEA, ANDREEA VESCAN.3. A STEP-BACK SENSITIVE ANT MODEL FOR SOLVING COMPLEX PROBLEMS. Authors: CAMELIA CHIRA, CAMELIA-MIHAELA PINTEA, D. DUMITRESCU.4. A REINFORCEMENT LEARNING APPROACH FOR SOLVING THE MATRIX BANDWIDTH MINIMIZATION PROBLEM. Authors: GABRIELA CZIBULA, ISTVAN GERGELY CZIBULA, CAMELIA-MIHAELA PINTEA.