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Team 8 Mowry, Srinivasan and Wong Ling 573, Spring University of Washington.

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Presentation on theme: "Team 8 Mowry, Srinivasan and Wong Ling 573, Spring University of Washington."— Presentation transcript:

1 Team 8 Mowry, Srinivasan and Wong Ling 573, Spring University of Washington

2 Deliverable 3: Passage Retrieval Overview System Issues Experiments and Results

3 Deliverable 3: Passage Retrieval System Software used: Indri/Lemur retrieval system

4 Deliverable 3: Passage Retrieval Issues Query formulation Query Expansion

5 Deliverable 3: Passage Retrieval Experiments and Results Baseline (w/o QE):0.1376 Baseline (w/ QE):0.1271 Stopword list (Lucene):0.0576~0.0610 Stopword list (custom):0.2643 (2004) Stopword list (custom): 0.2320 (2005)

6 Deliverable 3: Passage Retrieval Experiments and Results 2004 TREC: MRR Strict: 0.27885798493 MRR Lenient: 0.36375472547 2005 TREC: MRR Strict: 0.21971379148 MRR Lenient: 0.358439434004

7 Deliverable 3: Passage Retrieval Future Work Refine Indri query Incorporate passage re-ranking

8 Deliverable 3: Passage Retrieval That's all for now.

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