Papers by Xiongxiao Xu
Taxonomy-Guided Zero-Shot Recommendations with LLMs (2025.coling-main)
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| Challenge: | Existing approaches to deploy large language models (LLMs) into RecSys have limited prompt length, unstructured item information, and un-constrained generation of recommendations. |
| Approach: | They propose a taxonomy-guided recommendation framework that empowers LLMs with category information in a systematic approach. |
| Outcome: | The proposed framework significantly improves recommendation quality compared to zero-shot approaches. |
Piecing It All Together: Verifying Multi-Hop Multimodal Claims (2025.coling-main)
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| Challenge: | Existing claim verification datasets often do not require systems to perform complex reasoning or effectively interpret multimodal evidence. |
| Approach: | They propose a task that requires models to reason over multiple pieces of evidence . they construct a large-scale dataset comprising 15k multi-hop claims paired with multimodal evidence - generated and refined using large language models with additional input from human feedback. |
| Outcome: | The proposed method is based on human performance benchmarks and human reasoning hops. |