| AID | Algorithmic Information Dynamics |
| AIT | Algorithmic Information Theory |
| BR | Bits Required |
| BDM | Block Decomposition Method |
| CTM | Coding Theorem Method |
| MML | Minimum Message Length |
| MDL | Minimum Description Length |
| NC | Normalized Compression |
| TNTM | Total Number of Turing Machines |
| TM | Turing Machine |
| US | Universal Levin Search |