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UHop: An Unrestricted Hop Relation Extraction Framework for Knowledge Based Question Answering

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Figure

Figure 1: (a) A snippet of knowledge graph. (b) without UHop, all the paths less than two hop are considered ascandidates; (c) under UHop, the next part of relation is extracted hop by hop (step 1 and 3), then we compare thechosen relation and its outbound
Table 1: Number of questions in experimental datasets
Table 2: Results adopting state-of-the-art models inUHop framework vs standalone versions
Table 4: Accuracy on PathQuestion. PQ+ is mix of PQ2 and PQ3, and PQL+ contains PQL2 and PQL3
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