2. SMP Behaviour on MEDLINE Data


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The following table shows the behavior of SMP on a 656MB MEDLINE document for user-defined XPath queries. The following values are listed.

Projection benchmarks on 656MB MEDLINE document


Runtime of SPEX for queries M1-M5 on 656MB document with and without projection

The projected documents are piped directly into the SPEX engine.

Throughput of SPEX for queries M1-M5 on 656MB document with and without projection

The projected documents are piped directly into the SPEX engine.

Queries

M1:  /MedlineCitationSet//CollectionTitle
M2:  /MedlineCitationSet//DataBank[DataBankName/text()="PDB"]/AccessionNumberList
M3:  /MedlineCitationSet//PersonalNameSubjectList/PersonalNameSubject[LastName/text()="Hippocrates" or DatesAssociatedWithName="Oct2006"]/TitleAssociatedWithName
M4:  /MedlineCitationSet//CopyrightInformation[contains(text(),"NASA")]
M5:  /MedlineCitationSet/MedlineCitation[contains(MedlineJournalInfo//text(),"Sterilization")]/DateCompleted

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