1) Entity-centric data management stores information at the entity level and integrates information by interlinking entities. This provides advantages over keyword-based and relational database approaches. 2) The XI Pipeline extracts mentions from text and performs named entity recognition, entity linking, and entity typing to associate entities with text. 3) Approaches like ZenCrowd and TRank leverage both algorithms and human computation through crowdsourcing to improve entity linking and fine-grained entity typing.