INEX 2011 DC Track
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INEX 2011 Focused Relevance Feedback Track - Results

The evaluation was performed using the first 20 topics from the INEX 2009 Ad Hoc track.

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Topics file
Qrels

Exact Precision

ReferenceReference (no feedback)Otago (BM25)Otago (Rocchio)Otago (Tuned)
P@50.50.50.540.540.52
P@100.5150.4350.4450.4450.485
P@150.490.40.41670.41670.45
P@200.46750.3850.39750.39750.3975
P@300.43670.350.35830.35830.3533
P@1000.30950.2420.2260.2260.2175
P@2000.23270.1740.1830.18280.1788
P@5000.12240.11820.11540.11540.1152
P@10000.06360.06360.06360.06360.0636
R-Precision0.41260.33610.35970.35970.3573

Interpolated Recall-Precision

ReferenceReference (no feedback)Otago (BM25)Otago (Rocchio)Otago (Tuned)
IP@0.00.870.84180.84810.84810.8679
IP@0.10.69030.57410.57820.57820.5916
IP@0.20.58770.51050.4940.4940.516
IP@0.30.51320.4330.43540.43540.4518
IP@0.40.47180.39860.39430.39430.3916
IP@0.50.43290.30780.35370.35370.3632
IP@0.60.39120.27030.31280.31340.3305
IP@0.70.35570.24880.2790.2790.2977
IP@0.80.30150.20530.2410.2410.2407
IP@0.90.2170.17160.17610.17610.1753
IP@1.00.15280.12910.13690.13690.1368
Average0.42190.33760.35800.35760.3656
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