1 Subjects: “...constrained sparse representation...”

2 Subjects: “...building representation...”

3 Subjects: “...multimodal joint representation...”

4 Subjects: “...knowledge representation...”

5 Subjects: “...3D representation...”

6 Subjects: “...ultrasonic representation...”

7 Subjects: “...3D representation...”

8 Subjects: “...map representation...”

9 Subjects: “...graph representation...”

10 Subjects: “...graph representation...”

11 Subjects: “...graph representation...”

12 Subjects: “...joint sparse representation classification...”

13 Subjects: “...feature representations...”