Author

Shaowen Peng

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Preprint Aug 2026

Rethinking Semantic Alignment in LLM-Enhanced Collaborative Filtering: A Spectral Decoupling Approach

Recent advances in LLM-enhanced recommendation commonly align semantic representations with collaborative embeddings in a shared space, yet how alignment affects LLM-encoded information remains unclear. In this work, we revisit LLM-enhanced recommendation from a spectral perspective and show that collaborative and sema...

Yedong Jin, Shaowen Peng, Tsunenori Mine et al. · 0 citations

Open access Jul 2026

Evaluating the cultural alignment of multilingual LLMs in typical Japanese workplace scenarios

While current evaluations of LLM cultural alignment predominantly rely on static benchmarks in Western contexts, their ability to navigate generative, high-context socio-pragmatic demands in non-Western environments remains critically underexplored. This study investigates how multilingual LLMs adapt to the Japanese wo...

Zhiwei Gao, Nobuyuki Shimizu, Sumio Fujita et al. · PLoS ONE · 0 citations

Preprint Aug 2026

What Does Activation Steering Control? Attribution Across Answer Encodings and Output-Sensitive Subspaces

This work introduces Cross-Encoding Steering Evaluation, which freezes an intervention while re-encoding answers to the same held-out items, which favors extraction-index over semantic-label following on NormBank in three models.

Zhiwei Gao, Shaowen Peng, Shoko Wakamiya et al. · 1 citation