Dealing with Pure New User Cold-Start Problem in Recommendation System Based on Linked Open Data and Social Network Features

<table class="table-group" id="tab7"><tr><td><table class="table"><tr><td class="thead-hr" colspan="10"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">User</td><td class="align_center" colspan="9">Feature group</td></tr><tr class="thead"><td class="align_center" colspan="5">Collaborative features</td><td class="align_center" colspan="4">LOD-based features</td></tr><tr><td class="thead-hr" colspan="10"><hr/></td></tr><tr><td class="align_left">User 1</td><td class="align_center">0</td><td class="align_center">1</td><td class="align_center">1</td><td class="align_center">0</td><td class="align_center">1…</td><td class="align_center">0</td><td class="align_center">1</td><td class="align_center">0</td><td class="align_center">0…</td></tr><tr><td class="align_left">User 2</td><td class="align_center">1</td><td class="align_center">0</td><td class="align_center">1</td><td class="align_center">0</td><td class="align_center">0…</td><td class="align_center">0</td><td class="align_center">1</td><td class="align_center">1</td><td class="align_center">1…</td></tr><tr><td class="align_left">User 3</td><td class="align_center">1</td><td class="align_center">0</td><td class="align_center">0</td><td class="align_center">0</td><td class="align_center">1…</td><td class="align_center">1</td><td class="align_center">0</td><td class="align_center">1</td><td class="align_center">1…</td></tr><tr class="table-tr"><td colspan="10"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Vector representing users based on features value.</div>

Mobile Information Systems

tab7

Table 7

Table 7: Dealing with Pure New User Cold-Start Problem in Recommendation System Based on Linked Open Data and Social Network Features 