Classification accuracy for non-fiction records with a single DDC class, by DDC top level class assigned in Libris
| DDC top level class | Frequency in test set | Accuracy, three-digit DDC | Accuracy, full DDC |
|---|---|---|---|
| 000 Computer science, information and general works | 427 (4.5%) | 60.0% | 50.1% |
| 100 Philosophy and psychology | 320 (3.4%) | 58.1% | 51.6% |
| 200 Religion | 427 (4.5%) | 56.2% | 43.1% |
| 300 Social sciences | 3,051 (32.3%) | 62.4% | 44.1% |
| 400 Language | 224 (2.4%) | 66.1% | 62.1% |
| 500 Science | 387 (4.1%) | 58.9% | 46.5% |
| 600 Technology | 1,686 (17.8%) | 70.9% | 52.1% |
| 700 Arts and recreation | 1,511 (16.0%) | 60.3% | 43.4% |
| 800 Literature | 392 (4.1%) | 66.6% | 37.2% |
| 900 History and geography | 1,029 (10.9%) | 60.3% | 46.9% |
| DDC top level class | Frequency in test set | Accuracy, three-digit DDC | Accuracy, full DDC |
|---|---|---|---|
| 000 Computer science, information and general works | 427 (4.5%) | 60.0% | 50.1% |
| 100 Philosophy and psychology | 320 (3.4%) | 58.1% | 51.6% |
| 200 Religion | 427 (4.5%) | 56.2% | 43.1% |
| 300 Social sciences | 62.4% | 44.1% | |
| 400 Language | 224 (2.4%) | 66.1% | |
| 500 Science | 387 (4.1%) | 58.9% | 46.5% |
| 600 Technology | 1,686 (17.8%) | 52.1% | |
| 700 Arts and recreation | 1,511 (16.0%) | 60.3% | 43.4% |
| 800 Literature | 392 (4.1%) | 66.6% | 37.2% |
| 900 History and geography | 1,029 (10.9%) | 60.3% | 46.9% |
Note(s): The italic value represents the best accuracy in the column
Source(s): Authors’ own creation
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