Analyzing the Application of Multimedia Technology Assisted English Grammar Teaching in Colleges

<table class="table-group" id="tab12"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left"> </td><td class="align_center">Precision (%)</td><td class="align_center">Recall (%)</td><td class="align_center">F<sub>1</sub> (%)</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">Before preprocessing</td><td class="align_center">68.13</td><td class="align_center">13.47</td><td class="align_center">21.82</td></tr><tr><td class="align_left">After preprocessing</td><td class="align_center">68.87</td><td class="align_center">14.20</td><td class="align_center">23.54</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Test comparison results before and after corpus preprocessing.</div>

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Table 12

Table 12: Analyzing the Application of Multimedia Technology Assisted English Grammar Teaching in Colleges 