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Eiji Aramaki

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Open access Sep 2026

Eco-Aware Route Planning in Okinawa: A Case Study on the Impact of Gradient

The global climate crisis has entered a critical phase, with scientific consensus indicating meaningful emission reductions must occur within this decade to limit global warming to 1.5°C above pre-industrial levels. Road transport remains a major contributor, accounting for roughly 15% of global anthropogenic CO 2...

I. R. Karas, E. Sardoğan, Y. Ortakci et al. · 0 citations
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 2026

J-ClinicalBench: A Benchmark for Evaluating Large Language Models on Practical Clinical Tasks in Japanese

Recent advances in large language models (LLMs) have accelerated the NLP applications in the medical and clinical domains. However, evaluations remain limited for non-English languages, such as Japanese, where clinical corpora are particularly scarce. To address this gap, we present J-ClinicalBench , a publicly availab...

Seiji Shimizu, Tomohiro Nishiyama, H. Shohei 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. · 0 citations

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