Improving Self-training for Cross-lingual Named Entity Recognition with Contrastive and Prototype Learning

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Knowledge Triples

Source Entity	Relationship	Target Entity
ContProto Method	comprises	Contrastive Self Training Method
ContProto Method	comprises	Prototype Based Pseudo Labeling Method
Contrastive Self Training Method	facilitates	Cross-Lingual Named Entity Recognition Task
Cross-Lingual Named Entity Recognition Task	uses	Self Training Method
Prototype Based Pseudo Labeling Method	improves	Self Training Method
Self Training Method	improves	ContProto Method