Table 2 Terms used for precision, recall, and accuracy
| Â | Relevant | Non-relevant | Total |
|---|---|---|---|
Retrieved | A | B | A + B |
Not retrieved | C | D | C + D |
Total | A + C | B + D | A + B + C + D |
| Â | Relevant | Non-relevant | Total |
|---|---|---|---|
Retrieved | A | B | A + B |
Not retrieved | C | D | C + D |
Total | A + C | B + D | A + B + C + D |