1, Oxford University. ?

2. Harvard university

3. Cambridge University.

4. Stanford University. ?

5. Massachusetts Institute of Technology.

6. California Institute of Technology. ?

7. Princeton University.

8. University of California, Berkeley.

9. Yale university

10, Imperial College London, London. ?

1 1, Columbia University. ?

12, Federal Institute of Technology Zurich.

13, University of Chicago.

14, University of Pennsylvania.

15 Johns Hopkins university. ?

16, Tsinghua University. ?

17, Peking University.

18, University of Toronto.

19, National University of Singapore.

Cornell University.

2 1, UCLA. ?

22. University College London. ?

23. University of Michigan. ?

24. new york University.

25. Duke University. ?

26. Northwest University.

27. University of Washington. ?

Carnegie Mellon University. ?

29. University of Edinburgh. ?

30. technical university of munich. ?

3 1, University of Hong Kong. ?

32. University of California, San Diego. ?

33. University of Munich. ?

34. University of Melbourne.

35. King's College London.

36. Nanyang Technological University. ?

37. London School of Economics and Political Science.

38. Georgia Institute of Technology.

39. University of Tokyo. ?

40. University of British Columbia.

4 1, Swiss Federal Institute of Technology Lausanne?

42. University of Leuven

43. University of Heidelberg

44. Monash University

45. The Chinese University of Hong Kong?

46. McGill University.

47. Paris University of Arts and Sciences. ?

48. University of Illinois at Urbana-Champaign. ?

49. karolinska institutet.

50. University of Texas at Austin. ?