Extraction of Belief Knowledge from a Relational Database for Quantitative Bayesian Network Inference

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td align="left">Classifier</td><td align="center">NB (<svg height="12.4375" id="M204" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 32.275002 12.4375" width="32.275002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,12.162)"><path d="M238 681l-124 -585q-7 -31 4 -31q10 0 37.5 18.5t49.5 41.5l16 -22q-40 -48 -89.5 -81.5t-76.5 -33.5q-42 0 -16 122l105 488q7 32 0 41t-39 9h-35l5 26q35 3 71 13t58 17.5t26 7.5q14 0 8 -31z" id="x1D459"></path></g><g transform="matrix(.017,-0,0,-.017,9.344,12.162)"><path d="M535 323h-483v50h483v-50zM535 138h-483v50h483v-50z" id="x3D"></path></g><g transform="matrix(.017,-0,0,-.017,24.048,12.162)"><path d="M384 0h-275v27q67 5 81.5 18.5t14.5 68.5v385q0 38 -7.5 47.5t-40.5 10.5l-48 2v24q85 15 178 52v-521q0 -55 14.5 -68.5t82.5 -18.5v-27z" id="x31"></path></g>
</svg>)</td><td align="center">NB (<svg height="12.4375" id="M205" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 32.275002 12.4375" width="32.275002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,12.162)"><path d="M238 681l-124 -585q-7 -31 4 -31q10 0 37.5 18.5t49.5 41.5l16 -22q-40 -48 -89.5 -81.5t-76.5 -33.5q-42 0 -16 122l105 488q7 32 0 41t-39 9h-35l5 26q35 3 71 13t58 17.5t26 7.5q14 0 8 -31z" id="x1D459"></path></g><g transform="matrix(.017,-0,0,-.017,9.344,12.162)"><path d="M535 323h-483v50h483v-50zM535 138h-483v50h483v-50z" id="x3D"></path></g><g transform="matrix(.017,-0,0,-.017,24.048,12.162)"><path d="M412 140l28 -9q0 -2 -35 -131h-373v23q112 112 161 170q59 70 92 127t33 115q0 63 -31 98t-86 35q-75 0 -137 -93l-22 20l57 81q55 59 135 59q69 0 118.5 -46.5t49.5 -122.5q0 -62 -29.5 -114t-102.5 -130l-141 -149h186q42 0 58.5 10.5t38.5 56.5z" id="x32"></path></g>
</svg>)</td><td align="center">NB</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td align="left">Mean error</td><td align="center">0.109</td><td align="center">0.097</td><td align="center">0.112</td></tr><tr><td align="left">Mean bias</td><td align="center">0.121</td><td align="center">0.117</td><td align="center">0.135</td></tr><tr><td align="left">Mean variance</td><td align="center">0.035</td><td align="center">0.037</td><td align="center">0.032</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Comparative error, bias, and variance for NB.

Mathematical Problems in Engineering

tab2

Table 2

Table 2: Extraction of Belief Knowledge from a Relational Database for Quantitative Bayesian Network Inference 