|
Values of pmra parameters (λ, μ) estimated using different sets of MEDLINE citations. |
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| Set Used |
Size |
λ |
μ |
P5 |
|
|
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| All assessed documents from TREC 2005 genomics track |
39874 |
0.032 |
0.022 |
0.397° |
| Top 100 hits for every relevant citation, bm25 |
453402 |
0.023 |
0.013 |
0.398° |
| Top 100 hits for every template query, Indri |
4991 |
0.022 |
0.012 |
0.397° |
| Top 1000 hits for every template query, Indri |
49907 |
0.024 |
0.013 |
0.397° |
| Optimal parameters |
0.022 |
0.013 |
0.399 |
|
|
We see that estimated values are close to optimal parameter values in many cases, and that differences in P5 performance are not statistically significant. | ||||
Lin and Wilbur BMC Bioinformatics 2007 8:423 doi:10.1186/1471-2105-8-423 |
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