Research Article
Multimodal Indexing of Multilingual News Video
Table 2
Results for keyword spotting in speech with constrained keyword list.
| Story id | Instances of keywords present | Keywords found | Retrieval Performance | True positives | False Positives | Recall (%) | Precision (%) | F-measure (%) |
| | | | | | | |
| | | | | | | |
| English Channels | | | | | | | E001 | 12 | 5 | 4 | 41.67 | 55.56 | 47.62 | E002 | 40 | 15 | 3 | 37.50 | 83.33 | 51.72 | E003 | 13 | 4 | 1 | 30.77 | 80.00 | 44.44 | E004 | 67 | 17 | 6 | 25.37 | 73.91 | 37.78 | E005 | 91 | 14 | 8 | 15.38 | 63.64 | 24.78 | E006 | 51 | 12 | 5 | 23.53 | 70.59 | 35.29 | E007 | 7 | 1 | 0 | 14.29 | 100.00 | 25.00 | E008 | 7 | 1 | 0 | 14.29 | 100.00 | 25.00 | E009 | 29 | 12 | 4 | 41.38 | 75.00 | 53.33 |
| Overall (English) | 317 | 81 | 31 | 25.55 | 72.32 | 37.76 |
| Bangla Channels | | | | | | | B001 | 7 | 3 | 0 | 42.86 | 100.00 | 60.00 | B002 | 14 | 3 | 1 | 21.43 | 75.00 | 33.33 | B003 | 13 | 4 | 1 | 30.77 | 80.00 | 44.44 | B004 | 13 | 1 | 2 | 7.69 | 33.33 | 12.50 | B005 | 29 | 8 | 3 | 27.59 | 72.73 | 40.00 |
| Overall (Bangla) | 76 | 19 | 7 | 25.00 | 73.08 | 37.25 |
| Overall | 393 | 100 | 38 | 25.45 | 72.46 | 37.66 |
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