| 704 / | HD | DATA PROCESSING: SPEECH SIGNAL PROCESSING, LINGUISTICS, LANGUAGE TRANSLATION, AND AUDIO COMPRESSION/DECOMPRESSION |
| 200 | DF | SPEECH SIGNAL PROCESSING {4} |
| 231 | DF | .~ Recognition {8} |
| 251 | DF | .~.~ Word recognition {4} |
| 255 | ![]() | .~.~.~ Specialized models {2} |
| 256 | DF | .~.~.~.~> Markov |
| 257 | DF | .~.~.~.~> Natural language |