Tianhua Zhang

question answering (3) conversational question answering (2) retrieval-augmented generation (2) retrieval augmented generation (2) direct preference optimization (1) data augmentation (1) domain adaptation (1) answer extraction (1) preference learning (1) passage retrieval (1) language model evaluation (1) knowledge graph question answering (1) question generation (1) instruction tuning (1) language model (1) knowledge graph (1) graph embedding (1) hallucination mitigation (1) instruction fine-tuning (1) chain-of-thought reasoning (1)