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Anserini Regressions: Gov2

Models: various bag-of-words approaches

This page describes regressions for the Terabyte Tracks from TREC 2004 to 2006, which uses the Gov2 collection. The exact configurations for these regressions are stored in this YAML file. Note that this page is automatically generated from this 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 gov2

Indexing

Typical indexing command:

target/appassembler/bin/IndexCollection \
  -collection TrecwebCollection \
  -input /path/to/gov2 \
  -index indexes/lucene-index.gov2/ \
  -generator DefaultLuceneDocumentGenerator \
  -threads 44 -storePositions -storeDocvectors -storeRaw \
  >& logs/log.gov2 &

The directory /path/to/gov2/ should be the root directory of the Gov2 collection, i.e., ls /path/to/gov2/ should bring up a bunch of subdirectories, GX000 to GX272.

For additional details, see explanation of common indexing options.

Retrieval

Topics and qrels are stored here, which is linked to the Anserini repo as a submodule. They are downloaded from NIST:

After indexing has completed, you should be able to perform retrieval as follows:

target/appassembler/bin/SearchCollection \
  -index indexes/lucene-index.gov2/ \
  -topics tools/topics-and-qrels/topics.terabyte04.701-750.txt \
  -topicreader Trec \
  -output runs/run.gov2.bm25.topics.terabyte04.701-750.txt \
  -bm25 &
target/appassembler/bin/SearchCollection \
  -index indexes/lucene-index.gov2/ \
  -topics tools/topics-and-qrels/topics.terabyte05.751-800.txt \
  -topicreader Trec \
  -output runs/run.gov2.bm25.topics.terabyte05.751-800.txt \
  -bm25 &
target/appassembler/bin/SearchCollection \
  -index indexes/lucene-index.gov2/ \
  -topics tools/topics-and-qrels/topics.terabyte06.801-850.txt \
  -topicreader Trec \
  -output runs/run.gov2.bm25.topics.terabyte06.801-850.txt \
  -bm25 &

target/appassembler/bin/SearchCollection \
  -index indexes/lucene-index.gov2/ \
  -topics tools/topics-and-qrels/topics.terabyte04.701-750.txt \
  -topicreader Trec \
  -output runs/run.gov2.bm25+rm3.topics.terabyte04.701-750.txt \
  -bm25 -rm3 &
target/appassembler/bin/SearchCollection \
  -index indexes/lucene-index.gov2/ \
  -topics tools/topics-and-qrels/topics.terabyte05.751-800.txt \
  -topicreader Trec \
  -output runs/run.gov2.bm25+rm3.topics.terabyte05.751-800.txt \
  -bm25 -rm3 &
target/appassembler/bin/SearchCollection \
  -index indexes/lucene-index.gov2/ \
  -topics tools/topics-and-qrels/topics.terabyte06.801-850.txt \
  -topicreader Trec \
  -output runs/run.gov2.bm25+rm3.topics.terabyte06.801-850.txt \
  -bm25 -rm3 &

target/appassembler/bin/SearchCollection \
  -index indexes/lucene-index.gov2/ \
  -topics tools/topics-and-qrels/topics.terabyte04.701-750.txt \
  -topicreader Trec \
  -output runs/run.gov2.bm25+ax.topics.terabyte04.701-750.txt \
  -bm25 -axiom -axiom.beta 0.1 -axiom.deterministic -rerankCutoff 20 &
target/appassembler/bin/SearchCollection \
  -index indexes/lucene-index.gov2/ \
  -topics tools/topics-and-qrels/topics.terabyte05.751-800.txt \
  -topicreader Trec \
  -output runs/run.gov2.bm25+ax.topics.terabyte05.751-800.txt \
  -bm25 -axiom -axiom.beta 0.1 -axiom.deterministic -rerankCutoff 20 &
target/appassembler/bin/SearchCollection \
  -index indexes/lucene-index.gov2/ \
  -topics tools/topics-and-qrels/topics.terabyte06.801-850.txt \
  -topicreader Trec \
  -output runs/run.gov2.bm25+ax.topics.terabyte06.801-850.txt \
  -bm25 -axiom -axiom.beta 0.1 -axiom.deterministic -rerankCutoff 20 &

target/appassembler/bin/SearchCollection \
  -index indexes/lucene-index.gov2/ \
  -topics tools/topics-and-qrels/topics.terabyte04.701-750.txt \
  -topicreader Trec \
  -output runs/run.gov2.ql.topics.terabyte04.701-750.txt \
  -qld &
target/appassembler/bin/SearchCollection \
  -index indexes/lucene-index.gov2/ \
  -topics tools/topics-and-qrels/topics.terabyte05.751-800.txt \
  -topicreader Trec \
  -output runs/run.gov2.ql.topics.terabyte05.751-800.txt \
  -qld &
target/appassembler/bin/SearchCollection \
  -index indexes/lucene-index.gov2/ \
  -topics tools/topics-and-qrels/topics.terabyte06.801-850.txt \
  -topicreader Trec \
  -output runs/run.gov2.ql.topics.terabyte06.801-850.txt \
  -qld &

target/appassembler/bin/SearchCollection \
  -index indexes/lucene-index.gov2/ \
  -topics tools/topics-and-qrels/topics.terabyte04.701-750.txt \
  -topicreader Trec \
  -output runs/run.gov2.ql+rm3.topics.terabyte04.701-750.txt \
  -qld -rm3 &
target/appassembler/bin/SearchCollection \
  -index indexes/lucene-index.gov2/ \
  -topics tools/topics-and-qrels/topics.terabyte05.751-800.txt \
  -topicreader Trec \
  -output runs/run.gov2.ql+rm3.topics.terabyte05.751-800.txt \
  -qld -rm3 &
target/appassembler/bin/SearchCollection \
  -index indexes/lucene-index.gov2/ \
  -topics tools/topics-and-qrels/topics.terabyte06.801-850.txt \
  -topicreader Trec \
  -output runs/run.gov2.ql+rm3.topics.terabyte06.801-850.txt \
  -qld -rm3 &

target/appassembler/bin/SearchCollection \
  -index indexes/lucene-index.gov2/ \
  -topics tools/topics-and-qrels/topics.terabyte04.701-750.txt \
  -topicreader Trec \
  -output runs/run.gov2.ql+ax.topics.terabyte04.701-750.txt \
  -qld -axiom -axiom.beta 0.1 -axiom.deterministic -rerankCutoff 20 &
target/appassembler/bin/SearchCollection \
  -index indexes/lucene-index.gov2/ \
  -topics tools/topics-and-qrels/topics.terabyte05.751-800.txt \
  -topicreader Trec \
  -output runs/run.gov2.ql+ax.topics.terabyte05.751-800.txt \
  -qld -axiom -axiom.beta 0.1 -axiom.deterministic -rerankCutoff 20 &
target/appassembler/bin/SearchCollection \
  -index indexes/lucene-index.gov2/ \
  -topics tools/topics-and-qrels/topics.terabyte06.801-850.txt \
  -topicreader Trec \
  -output runs/run.gov2.ql+ax.topics.terabyte06.801-850.txt \
  -qld -axiom -axiom.beta 0.1 -axiom.deterministic -rerankCutoff 20 &

Evaluation can be performed using trec_eval:

tools/eval/trec_eval.9.0.4/trec_eval -m map -m P.30 tools/topics-and-qrels/qrels.terabyte04.701-750.txt runs/run.gov2.bm25.topics.terabyte04.701-750.txt
tools/eval/trec_eval.9.0.4/trec_eval -m map -m P.30 tools/topics-and-qrels/qrels.terabyte05.751-800.txt runs/run.gov2.bm25.topics.terabyte05.751-800.txt
tools/eval/trec_eval.9.0.4/trec_eval -m map -m P.30 tools/topics-and-qrels/qrels.terabyte06.801-850.txt runs/run.gov2.bm25.topics.terabyte06.801-850.txt

tools/eval/trec_eval.9.0.4/trec_eval -m map -m P.30 tools/topics-and-qrels/qrels.terabyte04.701-750.txt runs/run.gov2.bm25+rm3.topics.terabyte04.701-750.txt
tools/eval/trec_eval.9.0.4/trec_eval -m map -m P.30 tools/topics-and-qrels/qrels.terabyte05.751-800.txt runs/run.gov2.bm25+rm3.topics.terabyte05.751-800.txt
tools/eval/trec_eval.9.0.4/trec_eval -m map -m P.30 tools/topics-and-qrels/qrels.terabyte06.801-850.txt runs/run.gov2.bm25+rm3.topics.terabyte06.801-850.txt

tools/eval/trec_eval.9.0.4/trec_eval -m map -m P.30 tools/topics-and-qrels/qrels.terabyte04.701-750.txt runs/run.gov2.bm25+ax.topics.terabyte04.701-750.txt
tools/eval/trec_eval.9.0.4/trec_eval -m map -m P.30 tools/topics-and-qrels/qrels.terabyte05.751-800.txt runs/run.gov2.bm25+ax.topics.terabyte05.751-800.txt
tools/eval/trec_eval.9.0.4/trec_eval -m map -m P.30 tools/topics-and-qrels/qrels.terabyte06.801-850.txt runs/run.gov2.bm25+ax.topics.terabyte06.801-850.txt

tools/eval/trec_eval.9.0.4/trec_eval -m map -m P.30 tools/topics-and-qrels/qrels.terabyte04.701-750.txt runs/run.gov2.ql.topics.terabyte04.701-750.txt
tools/eval/trec_eval.9.0.4/trec_eval -m map -m P.30 tools/topics-and-qrels/qrels.terabyte05.751-800.txt runs/run.gov2.ql.topics.terabyte05.751-800.txt
tools/eval/trec_eval.9.0.4/trec_eval -m map -m P.30 tools/topics-and-qrels/qrels.terabyte06.801-850.txt runs/run.gov2.ql.topics.terabyte06.801-850.txt

tools/eval/trec_eval.9.0.4/trec_eval -m map -m P.30 tools/topics-and-qrels/qrels.terabyte04.701-750.txt runs/run.gov2.ql+rm3.topics.terabyte04.701-750.txt
tools/eval/trec_eval.9.0.4/trec_eval -m map -m P.30 tools/topics-and-qrels/qrels.terabyte05.751-800.txt runs/run.gov2.ql+rm3.topics.terabyte05.751-800.txt
tools/eval/trec_eval.9.0.4/trec_eval -m map -m P.30 tools/topics-and-qrels/qrels.terabyte06.801-850.txt runs/run.gov2.ql+rm3.topics.terabyte06.801-850.txt

tools/eval/trec_eval.9.0.4/trec_eval -m map -m P.30 tools/topics-and-qrels/qrels.terabyte04.701-750.txt runs/run.gov2.ql+ax.topics.terabyte04.701-750.txt
tools/eval/trec_eval.9.0.4/trec_eval -m map -m P.30 tools/topics-and-qrels/qrels.terabyte05.751-800.txt runs/run.gov2.ql+ax.topics.terabyte05.751-800.txt
tools/eval/trec_eval.9.0.4/trec_eval -m map -m P.30 tools/topics-and-qrels/qrels.terabyte06.801-850.txt runs/run.gov2.ql+ax.topics.terabyte06.801-850.txt

Effectiveness

With the above commands, you should be able to reproduce the following results:

MAP BM25 +RM3 +Ax QL +RM3 +Ax
TREC 2004 Terabyte Track (Topics 701-750) 0.2689 0.2840 0.2716 0.2681 0.2699 0.2714
TREC 2005 Terabyte Track (Topics 751-800) 0.3391 0.3814 0.3664 0.3304 0.3555 0.3620
TREC 2006 Terabyte Track (Topics 801-850) 0.3081 0.3372 0.3088 0.2998 0.3159 0.3075
P30 BM25 +RM3 +Ax QL +RM3 +Ax
TREC 2004 Terabyte Track (Topics 701-750) 0.4864 0.5156 0.5109 0.4755 0.4939 0.4973
TREC 2005 Terabyte Track (Topics 751-800) 0.5540 0.5933 0.5967 0.5347 0.5580 0.5887
TREC 2006 Terabyte Track (Topics 801-850) 0.4907 0.5167 0.5107 0.4727 0.4867 0.5027