[Retracted] A Two-Phase Method for Optimization of the SPARQL Query

<table class="table-group" id="tab7"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left"></td><td class="align_center">Q6</td><td class="align_center">Q7</td><td class="align_center">Q8</td><td class="align_center">Q9</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">RDF-3x</td><td class="align_center">659,738,158</td><td class="align_center">543,786,113</td><td class="align_center">380,103,352</td><td class="align_center">667,922,234</td></tr><tr><td class="align_left">Two-phase</td><td class="align_center">415,234,133</td><td class="align_center">324,455,729</td><td class="align_center">145,235,246</td><td class="align_center">576,245,458</td></tr><tr><td class="align_left">TripleBit</td><td class="align_center">455,673,778</td><td class="align_center">362,135,567</td><td class="align_center">208,356,113</td><td class="align_center">621,472,876</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Evaluation results of LUBM for Q6-Q9.</div>

Journal of Sensors

tab7

Table 7

Table 7: [Retracted] A Two-Phase Method for Optimization of the SPARQL Query 