1 INTRODUCTION

2 TAXONOMY

3 SCENARIO 1: USER NON-OVERLAP & ITEM NON-OVERLAP  

4 SCENARIO 2: USER PARTIAL OVERLAP & ITEM NON-OVERLAP  

5 SCENARIO 3: USER FULL OVERLAP & ITEM NON-OVERLAP  

6 DATASETS FOR CROSS-DOMAIN RECOMMENDATION

7 FUTURE DIRECTIONS AND CHALLENGES

8 CONCLUSION