$$%% examples \newcommand{\exGraph}{\graph_{\mathrm{ex}}} \newcommand{\exOnto}{\onto_{\mathrm{ex}}} \newcommand{\exMappings}{\mappings_{\mathrm{ex}}} \newcommand{\exExtensions}{\extensions_{\mathrm{ex}}} \newcommand{\exRule}{r_{\mathrm{ex}}} \newcommand{\RDFSrules}{\rules_{\mathrm{RDFS}}} %% RDF \newcommand{\triple}[3]{(#1, #2, #3)} \newcommand{\tuple}[1]{\langle #1 \rangle} \newcommand{\subject}{\mathtt{s}} \newcommand{\prop}{\mathtt{p}} \newcommand{\object}{\mathtt{o}} \newcommand{\blank}{\_{:}b} \newcommand{\blankn}[1]{\_{:}#1} \newcommand{\irin}[1]{{:}\mathrm{#1}} \newcommand{\class}{\mathtt{c}} \newcommand{\nsrdf}{\mathrm{rdf{:}}} \newcommand{\nsrdfs}{\mathrm{rdfs{:}}} \newcommand{\rdftype}{\mathrm{rdf{:}type}} \newcommand{\rdfLiteral}{\mathrm{rdf{:}Literal}} \newcommand{\rdfssubClassOf}{\mathrm{rdfs{:}subClassOf}} \newcommand{\rdfssubPropertyOf}{\mathrm{rdfs{:}subPropertyOf}} \newcommand{\rdfsdomain}{\mathrm{rdfs{:}domain}} \newcommand{\rdfsrange}{\mathrm{rdfs{:}range}} \newcommand{\rdfsClass}{\mathrm{rdfs{:}Class}} \newcommand{\rdfProperty}{\mathrm{rdf{:}Property}} \newcommand{\xsdint}{\mathrm{xsd{:}int}} %% \newcommand{\type}{\tau} \newcommand{\subclass}{\prec_{sc}} \newcommand{\subproperty}{\prec_{sp}} \newcommand{\domain}{\hookleftarrow_{d}} \newcommand{\range}{\hookrightarrow_{r}} \newcommand{\rdfentailment}{\vdash_{^\mathrm{RDF}}} \newcommand{\RDFS}[1]{\mathrm{RDFS}(#1)} \newcommand{\aka}{a.k.a.~} \newcommand{\etc}{etc} \newcommand{\wrt}{w.r.t.~} \newcommand{\st}{s.t.~} \newcommand{\ie}{i.e.,~} \newcommand{\eg}{e.g.,~} \newcommand{\graph}{G} \newcommand{\rules}{\mathcal{R}} \newcommand{\sources}{\mathcal{S}} \newcommand{\views}{\mathcal{V}} \newcommand{\extensions}{\mathcal{E}} \newcommand{\onto}{\mathcal{O}} \newcommand{\mappings}{\mathcal{M}} \newcommand{\modelsrdf}{\models_\rules} \newcommand{\bgp}{P} \newcommand{\Bl}[1]{\mathrm{Bl}(#1)} \newcommand{\Val}[1]{\mathrm{Val}(#1)} \newcommand{\Var}[1]{\mathrm{Var(#1)}} \newcommand{\ext}[1]{\mathrm{ext}(#1)} \newcommand{\cert}{\mathrm{cert}} \newcommand{\ans}{\mathrm{ans}} \newcommand{\query}{\leftarrow} \newcommand{\body}[1]{\textrm{body}(#1)} \newcommand{\head}[1]{\textrm{head}(#1)} \newcommand{\cs}{\mathrm{cs}} \newcommand{\lcs}{\mathrm{lcs}} \newcommand{\cl}{\mathrm{cl}} \newcommand{\lua}{\mathrm{lua}} \newcommand{\lur}{\mathrm{lur}} \newtheorem{lemma}{Lemma} \newtheorem{definition}{Definition} \newtheorem{problem}{Problem} \newtheorem{property}{Property} \newtheorem{corollary}{Corollary} \newtheorem{example}{Example} \newtheorem{theorem}{Theorem} \newcommand{\URIs}{\mathscr U} \newcommand{\IRIs}{\mathscr I} \newcommand{\BNodes}{\mathscr B} \newcommand{\Literals}{\mathscr L} \newcommand{\Variables}{\mathscr V} % DB \newcommand{\CQ}{\ensuremath{\mathtt{CQ}}\xspace} \newcommand{\UCQ}{\ensuremath{\mathtt{UCQ}}\xspace} \newcommand{\SQL}{\ensuremath{\mathtt{SQL}}\xspace} \newcommand{\rel}[1]{\mathsf{#1}} % Cost model \newcommand{\cans}[1]{|#1|_t} \newcommand{\cref}[1]{|#1|_r} \newcommand{\db}{\mathtt{db}} % DL \newcommand{\cn}{\ensuremath{N_{C}}\xspace} \newcommand{\rn}{\ensuremath{N_{R}}\xspace} \newcommand{\inds}{\ensuremath{N_{I}}\xspace} \newcommand{\ainds}{\ensuremath{\mathrm{Ind}}\xspace} \newcommand{\funct}{\mathit{funct} \ } \newcommand{\KB}{\mathcal{K}\xspace} \newcommand{\dlr}{DL-Lite$_{\mathcal{R}}$\xspace} % Logics \newcommand{\FOL}{\ensuremath{\mathtt{FOL}}\xspace} \newcommand{\datalog}{\ensuremath{\mathtt{Datalog}}\xspace} \newcommand{\dllite}{DL-Lite\xspace} \newcommand{\true}{\mathrm{true}} \newcommand{\false}{\mathrm{false}} \newcommand{\dis}{\mathtt{dis}} \newcommand{\vars}[1]{\ensuremath{\mathrm{vars}(#1)}} %\newcommand{\terms}[1]{\ensuremath{\mathrm{terms}(#1)}} %math \renewcommand{\phi}{\varphi} \newcommand\eqdef{\stackrel{\mathclap{\normalfont\mbox{def}}}{=}} \newcommand\restr[2]{#1_{|#2}} \newcommand{\ontoBody}[1]{\mathrm{body}_\onto(#1)} %proof of the rewriting theorem \newcommand{\rdfGraph}{\graph^{\mappings}_{\extensions}} \newcommand\systemGraph{\graph^{\mappings \cup \mappings^{\text{STD}}_\onto}_{\extensions \cup \extensions_\onto}} \newcommand\viewsGraph{\graph^{\mappings^{\rules,\onto} \cup \mappings^{\text{STD}}_\onto}_{\extensions \cup \extensions_\onto}} \newcommand{\standMappings}{\mappings^{\text{STD}}_\onto} \newcommand{\reminder}[1]{[\vadjust{\vbox to0pt{\vss\hbox to0pt{\hss{\Large $\Longrightarrow$}}}}{{\textsf{\small #1}}}]} %\newcommand{\FG}[1]{\textcolor{blue}{\reminder{FG:~#1}}} \newcommand{\extVersion}{false} \newcommand{\printIfExtVersion}[2] { \ifthenelse{\equal{\extVersion}{true}}{#1}{} \ifthenelse{\equal{\extVersion}{false}}{#2}{} } \newcommand{\bda}{\true} \newcommand{\ifBDA}[2]% {% \ifthenelse{\equal{\bda}{true}}{#1}{}% \ifthenelse{\equal{\bda}{false}}{#2}{}% } %%% Local Variables: %%% TeX-master: "paper" %%% End: $$

Experiment on Big Heterogeneous Datasources

This experiments are made following this details.

Methods Comparison

Total time

It is the total query answering time.

The materialization (MATREF) takes 14h46min (53 199 182 ms) to compute and contains 108 506 391 triples. The saturated materialization (MATSAT) takes 16h14min (58 485 693 ms) to compute and contains 184 859 306 triples.

total-time-comparison.png

Main Statistics on Queries

index Q01 Q01a Q01b Q02 Q02a Q02b Q02c Q03 Q04 Q07 Q07a Q09 Q10 Q13 Q13a Q13b Q14 Q16 Q19 Q19a Q20 Q20a Q20b Q20c Q21 Q22 Q22a Q23
NTRI 5 5 5 6 6 6 6 5 2 3 3 1 3 4 4 4 3 4 9 9 11 11 11 11 3 4 4 7
NREF 21 175 1407 63 147 525 1225 4375 1 5 19 7 9350 84 5628 5628 1 201 525 1225 63 525 1225 4221 9350 40 520 192
NANS 15514 111793 863729 124 598 1058 1570 5 4487 2 3 299902 10 167760 4416946 10049829 2998948 249004 39826 60834 904 7818 10486 51988 37176 1528 18588 1329887

Rewritings Processing Time

Rewritings processing is the part of query answering that concerns only rewriting building and rewriting optimization. It doesn't includes the query plan optimization and evaluation. 

import sys
sys.path.append('../../')
from exp import print_group

files = {
    'REW-C': rewor,
    'REW-CA': ref
}

return print_group(files, group[0], title, True)

rewriting-processing-time.png

Query Plan Processing Time

Query plan processing time are the sum of query plan optimization and query plan evaluation. Since the two method returns minimal equivalent rewriting set, we expect that there is no time different between the two method at this step.

query-plan-time.png

Reformulation Based Method (REW-CA)

Raw Statistics

INPUT NANS NTRI NREF NREW NCLASH NCOVER TREF TREW TCLASH TCOVER TCORE TOP TQEV TTOTAL
Q01 15514.0 5.0 21.0 16.0 12.0 4.0 0.2 1231.2 0.0 0.8 27.0 2.2 380.0 1641.4
Q01a 111793.0 5.0 175.0 128.0 96.0 32.0 3.2 10204.8 1.0 10.2 191.0 13.2 2671.4 13094.8
Q01b 863729.0 5.0 1407.0 1024.0 768.0 256.0 20.8 80808.8 10.0 157.0 1453.8 126.0 21081.4 103657.8
Q02 124.0 6.0 63.0 32.0 24.0 8.0 1.0 17456.0 0.4 1.4 43.2 4.6 709.6 18216.2
Q02a 598.0 6.0 147.0 64.0 48.0 16.0 3.4 40490.4 0.8 5.0 83.2 7.4 1411.4 42001.6
Q04 4487.0 2.0 1.0 8.0 6.0 2.0 0.0 31.0 0.0 0.0 1.2 0.6 37.0 69.8
Q05 3000000.0 4.0 1.0 8.0 7.0 1.0 0.0 28.0 0.0 0.0 3.0 0.6 50978.6 51010.2
Q05a 1793489.0 4.0 3.0 2.0 nan 2.0 0.8 387.0 0.0 0.0 1.6 1.4 300175.0 300565.8
Q05b 2454945.0 4.0 7.0 4.0 nan 4.0 0.8 890.0 0.0 0.0 3.0 2.0 454889.8 455785.6
Q06 2790902.0 3.0 5.0 2.0 nan 2.0 0.4 354.6 0.0 0.2 4.6 1.8 13338.6 13700.2
Q07 2.0 3.0 5.0 2562.0 nan 2562.0 0.0 586.2 3.8 2864.4 219.4 3197.6 81920.2 88791.6
Q07a 3.0 3.0 19.0 10248.0 nan 5124.0 0.2 2481.2 14.8 22738.8 451.8 11975.2 165041.4 202703.4
Q08 3000000.0 3.0 1.0 1.0 nan 1.0 0.2 28.6 0.0 0.0 4.8 0.2 32135.6 32169.4
Q09 299902.0 1.0 7.0 2.0 nan 2.0 0.0 210.4 0.0 0.4 3.6 0.8 798.4 1013.6
Q12 14571.0 5.0 2.0 8.0 7.0 1.0 0.0 322.6 0.0 0.0 2.0 1.0 1891.0 2216.6
Q12a 31322.0 5.0 6.0 16.0 14.0 2.0 0.6 951.2 0.0 0.0 3.6 1.4 5902.2 6859.0
Q12b 117426.0 5.0 14.0 32.0 28.0 4.0 0.2 2209.2 0.2 0.0 7.4 2.0 16781.4 19000.4
Q13 167760.0 4.0 84.0 50.0 nan 42.0 1.2 6384.4 1.2 37.0 91.6 28.8 4563.2 11107.4
Q13a 4416946.0 4.0 5628.0 3200.0 nan 2688.0 51.6 404721.0 33.0 7990.6 5587.6 5458.0 155930.0 579771.8
Q14 2998948.4 3.0 1.0 1.0 nan 1.0 0.0 146.4 0.4 0.0 4.2 0.6 61008.0 61159.6
Q15 1500000.0 5.0 1.0 4.0 3.0 1.0 0.4 107.4 0.0 0.0 4.0 1.6 13251.6 13365.0
Q16 249004.0 4.0 201.0 128.0 nan 128.0 2.0 16433.6 1.2 22.2 424.8 48.4 7483.2 24415.4
Q17 2790902.0 2.0 5.0 2.0 nan 2.0 0.4 284.2 0.0 0.2 3.2 1.0 10033.8 10322.8
Q18 3000000.0 4.0 1.0 4.0 3.0 1.0 0.2 96.0 0.0 0.0 6.6 0.6 64370.6 64474.0
Q19 39826.0 9.0 525.0 448.0 nan 128.0 15.4 287570.8 5.8 907.8 913.0 78.4 14308.2 303799.4
Q20 904.0 11.0 63.0 8.0 nan 8.0 2.0 48600.2 1.2 98.4 78.2 8.8 1066.2 49855.0
Q20a 7818.0 11.0 525.0 64.0 nan 64.0 18.2 386304.6 3.2 787.2 632.4 59.6 7922.6 395727.8
Q21 37176.0 3.0 9350.0 14180.0 6486.0 6401.0 98.8 117456.6 67.4 32073.4 952.6 18903.2 321322.8 490874.8
Q22 1528.0 4.0 40.0 32.0 nan 32.0 1.2 565.2 0.2 1.6 7.0 4.6 2213.8 2793.6
Q22a 18588.0 4.0 520.0 384.0 nan 384.0 6.4 6712.0 3.2 141.6 51.8 120.6 26463.6 33499.2
Q23 1329887.0 7.0 192.0 80.0 56.0 24.0 3.8 32940.4 1.6 9.6 35.8 16.0 60639.0 93646.2
Q23a 2008985.0 7.0 448.0 160.0 112.0 48.0 5.8 76443.4 2.6 25.4 75.0 27.2 110847.4 187426.8

Rewriting Numbers

rewritings-numbers.png

Rewriting Processing Times

times-for-rewriting-ref.png

Query Plan Processing Times

times-for-plan-evaluation-ref.png

Rewriting Based Method (REW-C)

Raw Statistics

INPUT NANS NTRI NREF NREW NCLASH NCOVER TREF TREW TCLASH TCOVER TCORE TOP TQEV TTOTAL
Q01 15514.0 5.0 1.0 16.0 12.0 4.0 0.2 523.0 0.0 0.6 26.0 2.6 353.0 905.4
Q01a 111793.0 5.0 1.0 128.0 96.0 32.0 0.4 479.4 0.2 5.8 204.0 12.8 2675.8 3378.4
Q01b 863729.0 5.0 1.0 1024.0 768.0 256.0 0.0 527.8 1.2 74.6 1773.0 134.4 21793.0 24304.0
Q02 124.0 6.0 1.0 32.0 24.0 8.0 0.0 652.8 0.2 1.2 49.2 4.0 704.4 1411.8
Q02a 598.0 6.0 1.0 64.0 48.0 16.0 0.0 696.0 0.4 2.6 108.6 7.6 1477.2 2292.4
Q02b 1058.0 6.0 1.0 256.0 192.0 64.0 0.0 711.6 0.4 12.8 410.0 29.4 5484.6 6648.8
Q02c 1570.0 6.0 1.0 512.0 384.0 128.0 0.0 869.0 1.0 34.4 1165.2 77.4 10998.4 13145.4
Q03 5.0 5.0 1.0 1024.0 nan 512.0 0.2 539.6 2.4 387.8 9701.8 823.8 6648.4 18104.0
Q04 4487.0 2.0 1.0 8.0 6.0 2.0 0.6 135.6 0.0 0.0 1.6 0.2 33.2 171.2
Q05 3000000.0 4.0 1.0 8.0 7.0 1.0 0.4 118.6 0.0 0.0 3.0 0.6 54116.2 54238.8
Q05a 1793489.0 4.0 1.0 2.0 nan 2.0 0.8 391.2 0.0 0.0 1.6 1.6 296631.6 297026.8
Q05b 2454945.0 4.0 1.0 4.0 nan 4.0 0.4 397.8 0.0 0.0 3.6 2.2 450208.6 450612.6
Q06 2790902.0 3.0 1.0 2.0 nan 2.0 0.4 222.6 0.0 0.4 4.0 2.0 14106.2 14335.6
Q07 2.0 3.0 1.0 2562.0 nan 2562.0 0.2 450.4 3.0 2727.0 215.0 3109.6 87307.6 93812.8
Q07a 3.0 3.0 1.0 5124.0 nan 5124.0 0.0 486.4 6.6 11311.0 449.4 11790.6 176115.0 200159.0
Q08 3000000.0 3.0 1.0 1.0 nan 1.0 0.0 121.4 0.0 0.0 5.4 0.2 34601.0 34728.0
Q09 299902.0 1.0 1.0 2.0 nan 2.0 0.0 247.0 0.0 0.0 4.0 0.8 933.8 1185.6
Q10 10.0 3.0 1.0 7690.0 nan 7690.0 0.4 1154.4 11.8 26121.2 831.4 29326.2 269706.4 327151.8
Q12 14571.0 5.0 2.0 8.0 7.0 1.0 371.8 729.0 0.0 0.0 1.8 0.8 1906.6 3010.0
Q12a 31322.0 5.0 2.0 16.0 14.0 2.0 362.0 710.6 0.2 0.0 3.6 1.0 5876.2 6953.6
Q12b 117426.0 5.0 2.0 32.0 28.0 4.0 375.2 744.4 0.2 0.0 7.2 2.2 16959.0 18088.2
Q13 167760.0 4.0 16.0 50.0 nan 42.0 5.4 3358.0 0.4 27.8 91.2 34.6 4506.4 8023.8
Q13a 4416946.0 4.0 16.0 3200.0 nan 2688.0 3.2 3736.4 4.2 5509.2 6140.8 5534.0 164572.2 185500.0
Q13b 10049829.0 4.0 16.0 3200.0 nan 2688.0 4.0 3587.6 2.8 5708.8 5722.6 6440.8 300195.2 321661.8
Q14 2998948.4 3.0 1.0 1.0 nan 1.0 0.2 389.4 0.0 0.0 4.2 0.6 64212.4 64606.8
Q15 1500000.0 5.0 1.0 4.0 3.0 1.0 0.0 290.8 0.0 0.0 4.4 1.4 13704.2 14000.8
Q16 249004.0 4.0 1.0 128.0 nan 128.0 0.0 307.4 0.2 10.2 504.4 52.4 7736.2 8610.8
Q17 2790902.0 2.0 1.0 2.0 nan 2.0 0.4 198.0 0.0 0.0 3.4 1.0 12407.4 12610.2
Q18 3000000.0 4.0 1.0 4.0 3.0 1.0 0.6 276.2 0.0 0.0 6.6 0.6 63354.0 63638.0
Q19 39826.0 9.0 1.0 448.0 nan 128.0 0.0 1130.0 1.0 1157.6 920.4 76.2 14583.6 17868.8
Q19a 60834.0 9.0 1.0 896.0 nan 256.0 0.4 1483.4 2.6 2428.6 2287.8 192.6 28122.8 34518.2
Q20 904.0 11.0 1.0 8.0 nan 8.0 0.0 1775.4 0.0 96.0 128.0 12.4 1037.6 3049.4
Q20a 7818.0 11.0 1.0 64.0 nan 64.0 0.2 1694.6 0.4 739.0 878.2 74.6 8070.4 11457.4
Q20b 10486.0 11.0 1.0 128.0 nan 128.0 0.2 1737.8 1.0 1515.6 1520.2 136.2 15929.6 20840.6
Q20c 51988.0 11.0 1.0 512.0 nan 512.0 0.2 1852.0 2.8 5983.2 6462.2 793.2 63439.0 78532.6
Q20d 201747.0 11.0 1.0 1024.0 nan 1024.0 0.0 1580.0 6.0 13355.0 11889.4 1773.2 131285.4 159889.0
Q21 37176.0 3.0 1.0 12865.0 6459.0 6401.0 0.0 805.8 16.6 17698.4 800.0 18429.2 318242.4 355992.4
Q22 1528.0 4.0 24.0 32.0 nan 32.0 0.4 1765.0 0.2 1.4 4.2 4.0 2230.4 4005.6
Q22a 18588.0 4.0 200.0 384.0 nan 384.0 2.4 14818.6 3.8 102.0 48.4 109.2 26677.0 41761.4
Q23 1329887.0 7.0 64.0 80.0 56.0 24.0 701.8 23739.4 1.0 9.4 37.8 13.0 70163.4 94665.8
Q23a 2008985.0 7.0 64.0 160.0 112.0 48.0 801.6 24911.8 1.6 19.8 77.4 24.6 128757.6 154594.4

Rewriting Numbers

rewritings-numbers.png

Rewriting Processing Times

times-for-rewriting-rew.png

Query Plan Processing Times

times-for-plan-evaluation-rew.png

Queries

Queries are build by groups of Q, Qa, Qb … where Qb is always more general than Qa according to the ontology. 

Q01<$label, $featureLabel, $value> :-
              triple($product, <rdfs:label>, $label),
              triple($product, <rdf:type>, <bsbm-int:ProductType255>),
              triple($product, <bsbm:productFeature>, $productFeature),
              triple($productFeature, <rdfs:label>, $featureLabel),
              triple($product, <bsbm:productPropertyNumeric>, $value);

Q01a<$label, $featureLabel, $value> :-
              triple($product, <rdfs:label>, $label),
              triple($product, <rdf:type>, <bsbm-int:ProductType32>),
              triple($product, <bsbm:productFeature>, $productFeature),
              triple($productFeature, <rdfs:label>, $featureLabel),
              triple($product, <bsbm:productPropertyNumeric>, $value);

Q01b<$label, $featureLabel, $value> :-
              triple($product, <rdfs:label>, $label),
              triple($product, <rdf:type>, <bsbm-int:ProductType4>),
              triple($product, <bsbm:productFeature>, $productFeature),
              triple($productFeature, <rdfs:label>, $featureLabel),
              triple($product, <bsbm:productPropertyNumeric>, $value);

Q02<$label, $value, $country> :-
              triple($product, <rdfs:label>, $label),
              triple($product, <rdf:type>, <bsbm-int:ProductType255>),
              triple($product, <bsbm:productPropertyNumeric>, $value),
              triple($product, <bsbm:producer>, $producer),
              triple($producer,<bsbm:country>, $country),
              triple($country, <rdf:type>, <bsbm:CountryType12>);

Q02<$label, $value, $country> :-
              triple($product, <rdfs:label>, $label),
              triple($product, <rdf:type>, <bsbm-int:ProductType255>),
              triple($product, <bsbm:productPropertyNumeric>, $value),
              triple($product, <bsbm:producer>, $producer),
              triple($producer,<bsbm:country>, $country),
              triple($country, <rdf:type>, <bsbm:CountryType12>);

Q02old<$label, $value, $country> :-
              triple($product, <rdfs:label>, $label),
              triple($product, <rdf:type>, <bsbm-int:ProductType255>),
              triple($product, <bsbm:productPropertyNumeric>, $value),
              triple($product, <bsbm:producer>, $producer),
              triple($producer,<bsbm:country>, $country),
              triple($country, <rdf:type>, <bsbm:CountryType12>);

Q02a<$label, $value, $country> :-
              triple($product, <rdfs:label>, $label),
              triple($product, <rdf:type>, <bsbm-int:ProductType255>),
              triple($product, <bsbm:productPropertyNumeric>, $value),
              triple($product, <bsbm:producer>, $producer),
              triple($producer,<bsbm:country>, $country),
              triple($country, <rdf:type>, <bsbm:CountryType1>);

Q02b<$label, $value, $country> :-
              triple($product, <rdfs:label>, $label),
              triple($product, <rdf:type>, <bsbm-int:ProductType32>),
              triple($product, <bsbm:productPropertyNumeric>, $value),
              triple($product, <bsbm:producer>, $producer),
              triple($producer,<bsbm:country>, $country),
              triple($country, <rdf:type>, <bsbm:CountryType21>);

Q02c<$label, $value, $country> :-
              triple($product, <rdfs:label>, $label),
              triple($product, <rdf:type>, <bsbm-int:ProductType32>),
              triple($product, <bsbm:productPropertyNumeric>, $value),
              triple($product, <bsbm:producer>, $producer),
              triple($producer,<bsbm:country>, $country),
              triple($country, <rdf:type>, <bsbm:CountryType2>);

Q02d<$label, $value, $country> :-
              triple($product, <rdfs:label>, $label),
              triple($product, <rdf:type>, <bsbm-int:ProductType4>),
              triple($product, <bsbm:productPropertyNumeric>, $value),
              triple($product, <bsbm:producer>, $producer),
              triple($producer,<bsbm:country>, $country),
              triple($country, <rdf:type>, <bsbm:CountryType12>);

Q02e<$label, $value, $country> :-
              triple($product, <rdfs:label>, $label),
              triple($product, <rdf:type>, <bsbm-int:ProductType4>),
              triple($product, <bsbm:productPropertyNumeric>, $value),
              triple($product, <bsbm:producer>, $producer),
              triple($producer,<bsbm:country>, $country),
              triple($country, <rdf:type>, <bsbm:CountryType1>);

Q03<$product1, $product2> :-
           triple($product1, <rdf:type>, <bsbm-int:ProductType32>),
           triple($product1, <bsbm:productPropertyNumeric>, "1265"),
           triple($product1, <bsbm:producer>, $producer),
           triple($product2, <rdf:type>, <bsbm-int:ProductType26>),
           triple($product2, <bsbm:producer>, $producer);

Q04<$vendor, $vendorLabel, $vendorHomepage> :-
             triple($vendor, <rdfs:label>, $vendorLabel),
             triple($vendor, <foaf:homepage>, $vendorHomepage);

Q05<$offer, $offerURL, $vendor, $vendorLabel, $vendorHomepage> :-
             triple($offer, <bsbm:vendor>, $vendor),
             triple($offer, <bsbm:offerWebpage>, $offerURL),
             triple($vendor, <rdfs:label>, $vendorLabel),
             triple($vendor, <foaf:homepage>, $vendorHomepage);

Q05a<$offer, $offerURL> :-
             triple($offer, <bsbm:vendor>, $vendor),
             triple($offer, <bsbm:offerWebpage>, $offerURL),
             triple($vendor, <bsbm:country>, $country),
             triple($country, <rdf:type>, <bsbm:CountryType11>);

Q05b<$offer, $offerURL> :-
             triple($offer, <bsbm:vendor>, $vendor),
             triple($offer, <bsbm:offerWebpage>, $offerURL),
             triple($vendor, <bsbm:country>, $country),
             triple($country, <rdf:type>, <bsbm:CountryType1>);

# add condition on reviewer country and/or on product type and/or producer country
Q06<$review, $product, $rating> :-
             triple($review, <bsbm:reviewFor>, $product),
             triple($review, <http://purl.org/stuff/rev#reviewer>, $reviewer),
             triple($review, <bsbm:rating>, $rating);

Q06a<$review, $product, $rating> :-
             triple($review, <bsbm:reviewFor>, $product),
             triple($review, <http://purl.org/stuff/rev#reviewer>, $reviewer),
             triple($review, <bsbm:rating>, $rating),
             triple($product, <bsbm:producer>, $producer),
             triple($producer,<bsbm:country>, $country),
             triple($country, <rdf:type>, <bsbm:CountryType11>);

Q06b<$review, $product, $rating> :-
             triple($review, <bsbm:reviewFor>, $product),
             triple($review, <http://purl.org/stuff/rev#reviewer>, $reviewer),
             triple($review, <bsbm:rating>, $rating),
             triple($product, <bsbm:producer>, $producer),
             triple($producer,<bsbm:country>, $country),
             triple($country, <rdf:type>, <bsbm:CountryType2>);

Q07<$country> :-
            triple($org, <rdf:type>, <foaf:Organization>),
            triple($org, <bsbm:country>, $country),
            triple($country, <rdf:type>, <bsbm:CountryType222>);

Q07a<$country> :-
            triple($org, <rdf:type>, <foaf:Organization>),
            triple($org, <bsbm:country>, $country),
            triple($country, <rdf:type>, <bsbm:CountryType22>);

Q08<$offer, $offerURL, $price, $deliveryDays> :-
             triple($offer, <bsbm:offerWebpage>, $offerURL),
             triple($offer, <bsbm:price>, $price),
             triple($offer, <bsbm:deliveryDays>, $deliveryDays);

Q09<$product, $value> :-
              triple($product, <bsbm:productPropertyNumeric>, $value);

Q10<$country, $agentType> :-
            triple($agent, <rdf:type>, $agentType),
            triple($agent, <bsbm:country>, $country),
            triple($country, <rdf:type>, <bsbm:CountryType222>);

Q10a<$country, $agentType> :-
            triple($agent, <rdf:type>, $agentType),
            triple($agent, <bsbm:country>, $country),
            triple($country, <rdf:type>, <bsbm:CountryType22>);

Q10b<$country, $agentType> :-
            triple($agent, <rdf:type>, $agentType),
            triple($agent, <bsbm:country>, $country),
            triple($country, <rdf:type>, <bsbm:CountryType2>);

Q11<$label, $p, $country> :-
            triple($x, <rdfs:label>, $label),
            triple($x, $p, $org),
            triple($org, <rdf:type>, <foaf:Organization>),
            triple($org, <bsbm:country>, $country),
            triple($country, <rdf:type>, <bsbm:CountryType222>);

Q12<$label, $p, $country> :-
            triple($x, <rdfs:label>, $label),
            triple($x, $p, $org),
            triple($p, <rdfs:range>, <foaf:Organization>),
            triple($org, <bsbm:country>, $country),
            triple($country, <rdf:type>, <bsbm:CountryType222>);

Q12a<$label, $p, $country> :-
            triple($x, <rdfs:label>, $label),
            triple($x, $p, $org),
            triple($p, <rdfs:range>, <foaf:Organization>),
            triple($org, <bsbm:country>, $country),
            triple($country, <rdf:type>, <bsbm:CountryType21>);

Q12b<$label, $p, $country> :-
            triple($x, <rdfs:label>, $label),
            triple($x, $p, $org),
            triple($p, <rdfs:range>, <foaf:Organization>),
            triple($org, <bsbm:country>, $country),
            triple($country, <rdf:type>, <bsbm:CountryType1>);

Q13<$offer, $prop, $value> :-
              triple($offer, <bsbm:product>, $product),
              triple($product, <rdf:type>, <bsbm-int:ProductType110>),
              triple($product, $prop, $value),
              triple($prop, <rdfs:domain>, <bsbm:Product>);

Q13a<$offer, $prop, $value> :-
              triple($offer, <bsbm:product>, $product),
              triple($product, <rdf:type>, <bsbm-int:ProductType8>),
              triple($product, $prop, $value),
              triple($prop, <rdfs:domain>, <bsbm:Product>);

Q13b<$offer, $prop, $value> :-
              triple($offer, <bsbm:product>, $product),
              triple($product, <rdf:type>, <bsbm-int:ProductType2>),
              triple($product, $prop, $value),
              triple($prop, <rdfs:domain>, <bsbm:Product>);

Q14<$product, $p, $offer, $vendor> :-
              triple($product, <bsbm:producer>, $p),
              triple($offer, <bsbm:product>, $product),
              triple($offer, <bsbm:vendor>, $vendor);

Q15<$review, $product, $label, $personName, $title> :-
             triple($product, <rdfs:label>, $label),
             triple($review, <bsbm:reviewFor>, $product),
             triple($review, <http://purl.org/stuff/rev#reviewer>, $person),
             triple($person, <foaf:name>, $personName),
             triple($review, <http://purl.org/dc/elements/1.1/title>, $title);

Q16<$review, $product, $title, $text> :-
             triple($review, <bsbm:reviewFor>, $product),
             triple($product, <rdf:type>, <bsbm-int:ProductType2>),
             triple($review, <http://purl.org/dc/elements/1.1/title>, $title),
             triple($review, <http://purl.org/stuff/rev#text>, $text);

Q17<$review, $product, $rating> :-
             triple($review, <bsbm:reviewFor>, $product),
             triple($review, <bsbm:rating>, $rating);

Q18<$offer, $product, $label, $vendor, $price> :-
              triple($offer, <bsbm:product>, $product),
              triple($product, <rdfs:label>, $label),
              triple($offer, <bsbm:vendor>, $vendor),
              triple($offer, <bsbm:price>, $price);

Q19<$offer, $offerURL, $price, $deliveryDays, $value> :-
             triple($offer, <bsbm:offerWebpage>, $offerURL),
             triple($offer, <bsbm:price>, $price),
             triple($offer, <bsbm:deliveryDays>, $deliveryDays),
             triple($offer, <bsbm:product>, $product),
             triple($product, <rdf:type>, <bsbm-int:ProductType32>),
             triple($product, <bsbm:productPropertyNumeric>, $value),
             triple($product, <bsbm:producer>, $producer),
             triple($producer,<bsbm:country>, $country),
             triple($country, <rdf:type>, <bsbm:CountryType12>);

Q19a<$offer, $offerURL, $price, $deliveryDays, $value> :-
             triple($offer, <bsbm:offerWebpage>, $offerURL),
             triple($offer, <bsbm:price>, $price),
             triple($offer, <bsbm:deliveryDays>, $deliveryDays),
             triple($offer, <bsbm:product>, $product),
             triple($product, <rdf:type>, <bsbm-int:ProductType32>),
             
             triple($product, <bsbm:productPropertyNumeric>, $value),
             triple($product, <bsbm:producer>, $producer),
             triple($producer,<bsbm:country>, $country),
             triple($country, <rdf:type>, <bsbm:CountryType2>);

Q19b<$offer, $offerURL, $price, $deliveryDays, $value> :-
             triple($offer, <bsbm:offerWebpage>, $offerURL),
             triple($offer, <bsbm:price>, $price),
             triple($offer, <bsbm:deliveryDays>, $deliveryDays),
             triple($offer, <bsbm:product>, $product),
             triple($product, <rdf:type>, <bsbm-int:ProductType3>),
             triple($product, <bsbm:productPropertyNumeric>, $value),
             triple($product, <bsbm:producer>, $producer),
             triple($producer,<bsbm:country>, $country),
             triple($country, <rdf:type>, <bsbm:CountryType12>);

Q19c<$offer, $offerURL, $price, $deliveryDays, $value> :-
             triple($offer, <bsbm:offerWebpage>, $offerURL),
             triple($offer, <bsbm:price>, $price),
             triple($offer, <bsbm:deliveryDays>, $deliveryDays),
             triple($offer, <bsbm:product>, $product),
             triple($product, <rdf:type>, <bsbm-int:ProductType2>),
             triple($product, <bsbm:productPropertyNumeric>, $value),
             triple($product, <bsbm:producer>, $producer),
             triple($producer,<bsbm:country>, $country),
             triple($country, <rdf:type>, <bsbm:CountryType2>);

Q20<$offer, $offerURL, $price, $deliveryDays, $value> :-
             triple($offer, <bsbm:offerWebpage>, $offerURL),
             triple($offer, <bsbm:price>, $price),
             triple($offer, <bsbm:deliveryDays>, $deliveryDays),
             triple($offer, <bsbm:product>, $product),
             triple($product, <bsbm:productFeature>, $productFeature),
             triple($productFeature, <rdfs:label>, "babka"),
             triple($product, <rdf:type>, <bsbm-int:ProductType122>),
             triple($product, <bsbm:productPropertyNumeric>, $value),
             triple($product, <bsbm:producer>, $producer),
             triple($producer,<bsbm:country>, $country),
             triple($country, <rdf:type>, <bsbm:CountryType12>);

Q20a<$offer, $offerURL, $price, $deliveryDays, $value> :-
             triple($offer, <bsbm:offerWebpage>, $offerURL),
             triple($offer, <bsbm:price>, $price),
             triple($offer, <bsbm:deliveryDays>, $deliveryDays),
             triple($offer, <bsbm:product>, $product),
             triple($product, <bsbm:productFeature>, $productFeature),
             triple($productFeature, <rdfs:label>, "babka"),
             triple($product, <rdf:type>, <bsbm-int:ProductType15>),
             triple($product, <bsbm:productPropertyNumeric>, $value),
             triple($product, <bsbm:producer>, $producer),
             triple($producer,<bsbm:country>, $country),
             triple($country, <rdf:type>, <bsbm:CountryType12>);

Q20b<$offer, $offerURL, $price, $deliveryDays, $value> :-
             triple($offer, <bsbm:offerWebpage>, $offerURL),
             triple($offer, <bsbm:price>, $price),
             triple($offer, <bsbm:deliveryDays>, $deliveryDays),
             triple($offer, <bsbm:product>, $product),
             triple($product, <bsbm:productFeature>, $productFeature),
             triple($productFeature, <rdfs:label>, "babka"),
             triple($product, <rdf:type>, <bsbm-int:ProductType15>),
             triple($product, <bsbm:productPropertyNumeric>, $value),
             triple($product, <bsbm:producer>, $producer),
             triple($producer,<bsbm:country>, $country),
             triple($country, <rdf:type>, <bsbm:CountryType2>);

Q20c<$offer, $offerURL, $price, $deliveryDays, $value> :-
             triple($offer, <bsbm:offerWebpage>, $offerURL),
             triple($offer, <bsbm:price>, $price),
             triple($offer, <bsbm:deliveryDays>, $deliveryDays),
             triple($offer, <bsbm:product>, $product),
             triple($product, <bsbm:productFeature>, $productFeature),
             triple($productFeature, <rdfs:label>, "babka"),
             triple($product, <rdf:type>, <bsbm-int:ProductType2>),
             triple($product, <bsbm:productPropertyNumeric>, $value),
             triple($product, <bsbm:producer>, $producer),
             triple($producer,<bsbm:country>, $country),
             triple($country, <rdf:type>, <bsbm:CountryType12>);

Q20d<$offer, $offerURL, $price, $deliveryDays, $value> :-
             triple($offer, <bsbm:offerWebpage>, $offerURL),
             triple($offer, <bsbm:price>, $price),
             triple($offer, <bsbm:deliveryDays>, $deliveryDays),
             triple($offer, <bsbm:product>, $product),
             triple($product, <bsbm:productFeature>, $productFeature),
             triple($productFeature, <rdfs:label>, "babka"),
             triple($product, <rdf:type>, <bsbm-int:ProductType2>),
             triple($product, <bsbm:productPropertyNumeric>, $value),
             triple($product, <bsbm:producer>, $producer),
             triple($producer,<bsbm:country>, $country),
             triple($country, <rdf:type>, <bsbm:CountryType1>);

Q21<$product, $type> :-
             triple($product, <bsbm:productFeature>, $productFeature),
             triple($productFeature, <rdfs:label>, "babka"),
             triple($product, <rdf:type>, $type);

Q22<$product, $type> :-
             triple($product, <bsbm:productFeature>, $productFeature),
             triple($productFeature, <rdfs:label>, "babka"),
             triple($product, <rdf:type>, $type),
             triple($type, <rdfs:subClassOf>, <bsbm-int:ProductType12>);

Q22a<$product, $type> :-
             triple($product, <bsbm:productFeature>, $productFeature),
             triple($productFeature, <rdfs:label>, "babka"),
             triple($product, <rdf:type>, $type),
             triple($type, <rdfs:subClassOf>, <bsbm-int:ProductType2>);

Q23<$x, $class, $superProp, $value> :-
                triple($x, $prop, $value),
                triple($prop, <rdfs:subPropertyOf>, $superProp),
                triple($x, $p, $agent),
                triple($p, <rdfs:range>, <foaf:Agent>),
                triple($p, <rdfs:domain>, $class),
                triple($agent, <bsbm:country>, $country),
                triple($country, <rdf:type>, <bsbm:CountryType12>);

Q23a<$x, $class, $superProp, $value> :-
                triple($x, $prop, $value),
                triple($prop, <rdfs:subPropertyOf>, $superProp),
                triple($x, $p, $agent),
                triple($p, <rdfs:range>, <foaf:Agent>),
                triple($p, <rdfs:domain>, $class),
                triple($agent, <bsbm:country>, $country),
                triple($country, <rdf:type>, <bsbm:CountryType2>);

number of answers.png

REW Method Query Plans

  • Q01a

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  • Q01b

Q01b.svg

  • Q01

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  • Q02a

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  • Q02b

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  • Q02c

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  • Q02d

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  • Q02e

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  • Q02old

Q02old.svg

  • Q02

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  • Q03

Q03.svg

  • Q04

Q04.svg

  • Q05a

Q05a.svg

  • Q05b

Q05b.svg

  • Q05

Q05.svg

  • Q06

Q06.svg

  • Q08

Q08.svg

  • Q09

Q09.svg

  • Q11

Q11.svg

  • Q12a

Q12a.svg

  • Q12b

Q12b.svg

  • Q12

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  • Q13

Q13.svg

  • Q14

Q14.svg

  • Q15

Q15.svg

  • Q16

Q16.svg

  • Q17

Q17.svg

  • Q18

Q18.svg

  • Q19a

Q19a.svg

  • Q19

Q19.svg

  • Q20a

Q20a.svg

  • Q20b

Q20b.svg

  • Q20c

Q20c.svg

  • Q20

Q20.svg

  • Q22a

Q22a.svg

  • Q22

Q22.svg

  • Q23a

Q23a.svg

  • Q23

Q23.svg