DBpedia Release Evaluation: Difference between revisions
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|- | |- | ||
! Category | ! Category | ||
! Cases | |||
! DBpedia 3.5.1 | ! DBpedia 3.5.1 | ||
! DBpedia 3.6 | ! DBpedia 3.6 | ||
| Line 14: | Line 15: | ||
|- | |- | ||
| Total | | Total | ||
| 1504 | |||
| 45,7% | | 45,7% | ||
| 60,2% | | 60,2% | ||
| Line 19: | Line 21: | ||
|- | |- | ||
| Plain Property | | Plain Property | ||
| 514 | |||
| 80,5% | | 80,5% | ||
| 83,7% | | 83,7% | ||
| Line 24: | Line 27: | ||
|- | |- | ||
| Number-Unit | | Number-Unit | ||
| 51 | |||
| 68,6% | | 68,6% | ||
| 68,6% | | 68,6% | ||
| Line 29: | Line 33: | ||
|- | |- | ||
| Coordinate | | Coordinate | ||
| 36 | |||
| 100,0% | | 100,0% | ||
| 100,0% | | 100,0% | ||
| 100,0% | | 100,0% | ||
|- | |- | ||
| Interval | | Interval | ||
| 22 | |||
| 72,7% | | 72,7% | ||
| 68,2% | | 68,2% | ||
| Line 39: | Line 45: | ||
|- | |- | ||
| List | | List | ||
| 478 | |||
| 33,9% | | 33,9% | ||
| 75,7% | | 75,7% | ||
| Line 44: | Line 51: | ||
|- | |- | ||
| One-Property-Table | | One-Property-Table | ||
| 242 | |||
| 5,4% | | 5,4% | ||
| 5,8% | | 5,8% | ||
| Line 49: | Line 57: | ||
|- | |- | ||
| Multi-Poprty-Table | | Multi-Poprty-Table | ||
| 83 | |||
| 0,0% | | 0,0% | ||
| 0,0% | | 0,0% | ||
| Line 54: | Line 63: | ||
|- | |- | ||
| Open Property | | Open Property | ||
| 13 | style="background: orange" | | |||
| 23,1% | | 23,1% | ||
| 23,1% | | 23,1% | ||
| Line 59: | Line 69: | ||
|- | |- | ||
| Open Property Table | | Open Property Table | ||
| 0 | |||
| na | | na | ||
| na | | na | ||
| Line 64: | Line 75: | ||
|- | |- | ||
| Internal Template | | Internal Template | ||
| 58 | |||
| 8,6% | | 8,6% | ||
| 10,3% | | 10,3% | ||
| Line 69: | Line 81: | ||
|- | |- | ||
| Merged Properties | | Merged Properties | ||
| 7 | |||
| 57,1% | | 57,1% | ||
| 57,1% | | 57,1% | ||
Revision as of 15:08, 14 September 2011
DBpedia Release Evaluation
The Quality Assessment Framework (QAF) is developed to document the quality of the knowledge base and furthermore the progress of DBpedia's extraction framework. The main idea of the QAF is a comparison between a manually created best-case dataset and the output from DBpedia's ontology based extraction. The QAF estimates the precision of the extraction framework and the completeness (recall) of DBpedia compared to its source Wikipedia.
Evaluation Results
| Category | Cases | DBpedia 3.5.1 | DBpedia 3.6 | DBpedia 3.7 |
|---|---|---|---|---|
| Total | 1504 | 45,7% | 60,2% | 61,8% |
| Plain Property | 514 | 80,5% | 83,7% | 86,0% |
| Number-Unit | 51 | 68,6% | 68,6% | 66,7% |
| Coordinate | 36 | 100,0% | 100,0% | 100,0% |
| Interval | 22 | 72,7% | 68,2% | 72,7% |
| List | 478 | 33,9% | 75,7% | 77,8% |
| One-Property-Table | 242 | 5,4% | 5,8% | 5,8% |
| Multi-Poprty-Table | 83 | 0,0% | 0,0% | 0,0% |
| Open Property | style="background: orange" | | 23,1% | 23,1% | 30,8% |
| Open Property Table | 0 | na | na | na |
| Internal Template | 58 | 8,6% | 10,3% | 10,3% |
| Merged Properties | 7 | 57,1% | 57,1% | 71,4% |
| Category | DBpedia 3.5.1 | DBpedia 3.6 | DBpedia 3.7 |
|---|---|---|---|
| Total | 91,2% | 92,3% | 92,4% |
| Plain Property | 96,3% | 96,6% | 97,4% |
| Number-Unit | 85,4% | 85,4% | 85,0% |
| Coordinate | 100,0% | 100,0% | 100,0% |
| Interval | 100,0% | 100,0% | 88,9% |
| List | 91,5% | 92,8% | 93,2% |
| One-Property-Table | 32,5% | 36,8% | 34,1% |
| Multi-Poprty-Table | na | na | na |
| Open Property | 100,0% | 100,0% | 100,0% |
| Open Property Table | na | na | na |
| Internal Template | 83,3% | 75,0% | 75,0% |
| Merged Properties | 80,0% | 80,0% | 100,0% |
