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Employing Topic Models for Pattern based Semantic Class Discovery

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Figure

Figure 1. Graphical model representation of LDA, from Blei et al. (2003)
Figure 2. Main phases of our approach
Figure 3 shows the performance comparison be-tween the approaches listed in Section 4.1, using metrics MnDCG@n (n=1…10)
Table 5 shows the semantic classes generated by our LDA approach for some sample queries in which the bad classes or bad members are hig-hlighted (to save space, 10 items are listed here, and the query itself is omitted in the resultant semantic classes)

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