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dl19-doc-wp.template
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# Anserini Regressions: TREC 2019 Deep Learning Track (Document)
**Models**: various bag-of-words approaches on complete documents with WordPiece tokenization
This page describes experiments, integrated into Anserini's regression testing framework, on the [TREC 2019 Deep Learning Track document ranking task](https://trec.nist.gov/data/deep2019.html).
Here we are using **WordPiece tokenization** (i.e., from BERT) on the entire document.
In general, effectiveness is lower than with "standard" Lucene tokenization for two reasons: (1) we're losing stemming, and (2) some terms are chopped into less meaningful subwords.
Note that the NIST relevance judgments provide far more relevant documents per topic, unlike the "sparse" judgments provided by Microsoft (these are sometimes called "dense" judgments to emphasize this contrast).
The exact configurations for these regressions are stored in [this YAML file](${yaml}).
Note that this page is automatically generated from [this template](${template}) as part of Anserini's regression pipeline, so do not modify this page directly; modify the template instead.
From one of our Waterloo servers (e.g., `orca`), the following command will perform the complete regression, end to end:
```
python src/main/python/run_regression.py --index --verify --search --regression ${test_name}
```
## Indexing
Typical indexing command:
```
${index_cmds}
```
The directory `/path/to/msmarco-doc/` should be a directory containing the document corpus in Anserini's jsonl format.
See [this page](experiments-msmarco-doc-doc2query-details.md) for how to prepare the corpus.
For additional details, see explanation of [common indexing options](common-indexing-options.md).
## Retrieval
Topics and qrels are stored in [`src/main/resources/topics-and-qrels/`](../src/main/resources/topics-and-qrels/).
The regression experiments here evaluate on the 43 topics for which NIST has provided judgments as part of the TREC 2019 Deep Learning Track.
The original data can be found [here](https://trec.nist.gov/data/deep2019.html).
After indexing has completed, you should be able to perform retrieval as follows:
```
${ranking_cmds}
```
Evaluation can be performed using `trec_eval`:
```
${eval_cmds}
```
## Effectiveness
With the above commands, you should be able to reproduce the following results:
${effectiveness}