Therefore, we design a novel type-aware entity detection module in which the prediction is fulfilled in a joint space of IOB tagging and corresponding entity type for disambiguation.
the prediction space is defined as E = {O, {I, B} × {ET k } N (t) k=1 } where ET k stands for the k-th entity type label, N (t) denotes number of distinct entity types in KB, and |E| = 2×N (t) +1.