regressions-clef06-fr.md

Anserini: Regressions for CLEF2006 Monolingual French

This page documents regression experiments for CLEF2006 monolingual French topics). The description of the document collection can be found in the CLEF corpus page.

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.

Indexing

Typical indexing command:

nohup sh target/appassembler/bin/IndexCollection -collection JsonCollection -input /path/to/clef06-fr \
 -index lucene-index.clef06-fr.pos+docvectors+rawdocs -generator LuceneDocumentGenerator -threads 16 \
 -storePositions -storeDocvectors -storeRawDocs -language fr >& log.clef06-fr.pos+docvectors+rawdocs &

The directory /path/to/clef06-fr/ should be a directory containing the collection (the format is jsonline format).

For additional details, see explanation of common indexing options.

Retrieval

Topics and qrels are stored in src/main/resources/topics-and-qrels/. The regression experiments here evaluate on the 49 questions.

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

nohup target/appassembler/bin/SearchCollection -index lucene-index.clef06-fr.pos+docvectors+rawdocs \
 -topicreader TsvString -topics src/main/resources/topics-and-qrels/topics.clef06fr.mono.fr.txt \
 -language fr -bm25 -output run.clef06-fr.bm25.topics.clef06fr.mono.fr.txt &

Evaluation can be performed using trec_eval:

eval/trec_eval.9.0.4/trec_eval -m map -m P.30 src/main/resources/topics-and-qrels/qrels.clef06fr.txt run.clef06-fr.bm25.topics.clef06fr.mono.fr.txt

Effectiveness

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

MAP	BM25
CLEF2006 (French monolingual)	0.3111

P30	BM25
CLEF2006 (French monolingual)	0.2735