| Similarity | Rank | |
|---|---|---|
| MapReduce | 0.912 | 86812 |
| MongoDB | 0.895 | 68466 |
| NoSQL | 0.894 | 73081 |
| Postgres | 0.855 | 98034 |
| in-memory | 0.851 | 68106 |
| OpenStack | 0.851 | 52501 |
| RDBMS | 0.849 | 85633 |
| DBMS | 0.845 | 72756 |
| PaaS | 0.836 | 54981 |
| virtualization | 0.834 | 18427 |
| HANA | 0.833 | 73729 |
| PostgreSQL | 0.828 | 48448 |
| Solr | 0.828 | 89736 |
| Teradata | 0.822 | 91745 |
| Heroku | 0.819 | 99629 |
| MySQL | 0.818 | 16159 |
| Virtualization | 0.813 | 43326 |
| VMware | 0.811 | 20105 |
| DevOps | 0.810 | 95087 |
| vCloud | 0.809 | 99151 |
| VMware's | 0.806 | 93619 |
| middleware | 0.801 | 44330 |
| vSphere | 0.799 | 53635 |
| WebLogic | 0.798 | 86370 |
| IaaS | 0.798 | 59954 |