# Ad-hoc Retrieval on ClueWeb-09-Cat-B Topic titles (test) Source: [Ad-hoc Retrieval on ClueWeb-09-Cat-B Topic titles (test)]() Collection index: [llms.txt]() Data updated: 2026-02-26T05:49:34.457Z Evaluation of Ad-hoc Retrieval performance on the test split of the ClueWeb-09 Category B Topic titles subset, measured using MAP, nDCG@20, and P@20. A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage. | Scope | Recorded value | | --- | --- | | Task | Ad-hoc Retrieval | | Dataset (including any stated split) | ClueWeb-09-Cat-B Topic titles (test) | | Metric | MAP | | Unit | PERCENT | | Direction | Higher is better | | Results loaded | 17 of 17 | | Coverage | All results currently returned for this benchmark | Evaluation settings may differ between results. The original papers and recorded configurations are needed to establish comparability. A shared metric name alone does not establish an identical protocol. ## Metrics - [MAP](): Higher is better; unit: PERCENT. - [nDCG@20](): Higher is better; unit: PERCENT. - [P@20](): Higher is better; unit: PERCENT. ## Recorded results | Method | MAP | Result date | Report paper | | --- | --- | --- | --- | | DRMM\_LCHxIDF | 11.3 | Not recorded | 68fa63d01e209131cea00dca | | DRMM\_LCHxTV | 11.1 | Not recorded | 68fa63d01e209131cea00dca | | DRMM\_CHxIDF | 10.4 | Not recorded | 68fa63d01e209131cea00dca | | DRMM\_CHxTV | 10.3 | Not recorded | 68fa63d01e209131cea00dca | | BM25 | 10.1 | Not recorded | 68fa63d01e209131cea00dca | | QL | 10 | Not recorded | 68fa63d01e209131cea00dca | | MP\_COS | 6.6 | Not recorded | 68fa63d01e209131cea00dca | | DRMM\_NHxIDF | 6.6 | Not recorded | 68fa63d01e209131cea00dca | | DRMM\_NHxTV | 6.5 | Not recorded | 68fa63d01e209131cea00dca | | CDSSM\_T | 6.4 | Not recorded | 68fa63d01e209131cea00dca | | MP\_IND | 5.6 | Not recorded | 68fa63d01e209131cea00dca | | DSSM\_T | 5.4 | Not recorded | 68fa63d01e209131cea00dca | | CDSSM\_D | 5.4 | Not recorded | 68fa63d01e209131cea00dca | | MP\_DOT | 4.4 | Not recorded | 68fa63d01e209131cea00dca | | DSSM\_D | 3.9 | Not recorded | 68fa63d01e209131cea00dca | | ARC-II | 3.3 | Not recorded | 68fa63d01e209131cea00dca | | ARC-I | 2.4 | Not recorded | 68fa63d01e209131cea00dca | ### DRMM\_LCHxIDF MAP: 11.3. Result ID: 698c034df729bc7f68e7b6d5. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"Model Type":"Interaction-Focused Matching","Histogram":"Log-Count","Weighting":"IDF"}. This record does not assert independent reproduction. ### DRMM\_LCHxTV MAP: 11.1. Result ID: 698c034df729bc7f68e7b6d2. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"Model Type":"Interaction-Focused Matching","Histogram":"Log-Count","Weighting":"Term Vector"}. This record does not assert independent reproduction. ### DRMM\_CHxIDF MAP: 10.4. Result ID: 698c034df729bc7f68e7b6d3. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"Model Type":"Interaction-Focused Matching","Histogram":"Count","Weighting":"IDF"}. This record does not assert independent reproduction. ### DRMM\_CHxTV MAP: 10.3. Result ID: 698c034df729bc7f68e7b6d0. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"Model Type":"Interaction-Focused Matching","Histogram":"Count","Weighting":"Term Vector"}. This record does not assert independent reproduction. ### BM25 MAP: 10.1. Result ID: 698c034df729bc7f68e7b6c6. [Reporting paper]() Recorded evaluation configuration: {"Model Type":"Traditional Retrieval Baselines"}. This record does not assert independent reproduction. ### QL MAP: 10. Result ID: 698c034df729bc7f68e7b6c5. [Reporting paper]() Recorded evaluation configuration: {"Model Type":"Traditional Retrieval Baselines"}. This record does not assert independent reproduction. ### MP\_COS MAP: 6.6. Result ID: 698c034df729bc7f68e7b6ce. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"Model Type":"Interaction-Focused Matching Baselines"}. This record does not assert independent reproduction. ### DRMM\_NHxIDF MAP: 6.6. Result ID: 698c034df729bc7f68e7b6d4. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"Model Type":"Interaction-Focused Matching","Histogram":"Normalized","Weighting":"IDF"}. This record does not assert independent reproduction. ### DRMM\_NHxTV MAP: 6.5. Result ID: 698c034df729bc7f68e7b6d1. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"Model Type":"Interaction-Focused Matching","Histogram":"Normalized","Weighting":"Term Vector"}. This record does not assert independent reproduction. ### CDSSM\_T MAP: 6.4. Result ID: 698c034df729bc7f68e7b6c9. [Reporting paper]() Recorded evaluation configuration: {"Model Type":"Representation-Focused Matching Baselines"}. This record does not assert independent reproduction. ### MP\_IND MAP: 5.6. Result ID: 698c034df729bc7f68e7b6cd. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"Model Type":"Interaction-Focused Matching Baselines"}. This record does not assert independent reproduction. ### DSSM\_T MAP: 5.4. Result ID: 698c034df729bc7f68e7b6c7. [Reporting paper]() Recorded evaluation configuration: {"Model Type":"Representation-Focused Matching Baselines"}. This record does not assert independent reproduction. ### CDSSM\_D MAP: 5.4. Result ID: 698c034df729bc7f68e7b6ca. [Reporting paper]() Recorded evaluation configuration: {"Model Type":"Representation-Focused Matching Baselines"}. This record does not assert independent reproduction. ### MP\_DOT MAP: 4.4. Result ID: 698c034df729bc7f68e7b6cf. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"Model Type":"Interaction-Focused Matching Baselines"}. This record does not assert independent reproduction. ### DSSM\_D MAP: 3.9. Result ID: 698c034df729bc7f68e7b6c8. [Reporting paper]() Recorded evaluation configuration: {"Model Type":"Representation-Focused Matching Baselines"}. This record does not assert independent reproduction. ### ARC-II MAP: 3.3. Result ID: 698c034df729bc7f68e7b6cc. [Reporting paper]() [Method origin paper]() [Implementation]() Recorded evaluation configuration: {"Model Type":"Interaction-Focused Matching Baselines"}. This record does not assert independent reproduction. ### ARC-I MAP: 2.4. Result ID: 698c034df729bc7f68e7b6cb. [Reporting paper]() [Method origin paper]() [Implementation]() Recorded evaluation configuration: {"Model Type":"Representation-Focused Matching Baselines"}. This record does not assert independent reproduction. Page 1 of 1. This is an index page, not the full collection.