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Figure 1 | BMC Bioinformatics

Figure 1

From: Concept-based query expansion for retrieving gene related publications from MEDLINE

Figure 1

QuExT query expansion procedure. Query expansion and document ranking procedure: a) gene names in the query are converted to internal identifiers; b) the different gene name synonyms and related concepts for each gene are used to expand the user query; c) the index is searched for each term in the expanded query; d) resulting documents and scores are kept in separate lists (one for each concept class); e) results are assembled using the user-defined weights for each concept and the final results are normalized in relation to the highest score.

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