Papers by Woo Suk Choi
Hypergraph Transformer: Weakly-Supervised Multi-hop Reasoning for Knowledge-based Visual Question Answering (2022.acl-long)
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| Challenge: | Existing knowledge-based visual question answering tasks require weak supervision and no visual knowledge. |
| Approach: | They propose a model which encodes high-level semantics of a question and a knowledge base and learns high order associations between them. |
| Outcome: | The proposed model encodes high-level semantics of a question and a knowledge base, and learns high order associations between them. |
Confidence-guided Refinement Reasoning for Zero-shot Question Answering (2025.emnlp-main)
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| Challenge: | Existing frameworks that generate single-step reasoning do not improve QA reasoning . |
| Approach: | They propose a framework that strategically constructs and refines sub-questions and their answers (sub-QAs) they argue that sub-QA does not always enhance QA reasoning . |
| Outcome: | The proposed framework can be integrated with existing QA models and benchmarks. |