Author

Kotaro Funakoshi

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#natural language process... Preprint Oct 2026

Steering beyond Language: Improving Multilingual Training-Free Text Embeddings via Paired-Residual Subspace Removal

This work proposes Paired-Residual Subspace Removal (PRSR), a training-free inference-time intervention that steers LLM representations toward a more language-invariant semantic space and demonstrates that PRSR consistently improves the performance of existing training-free baselines in both monolingual and cross-lingu...

Ailiang Lin, Zhuo-Yun Li, Yu-Song Wang et al. · 0 citations

Open access 2026

Retrieving Responses Useful as References in Counseling via LLM-Generated Structurally Analogous Dialogues

Retrieving past similar dialogues to assist response generation in the present context is a promising approach to addressing the shortage of highly experienced professionals in various domains, such as user support and mental health counseling. However, unlike traditional retrieval, this task requires finding dialogue...

Yu Nakagawa, Nozomu Ikeda, Kotaro Funakoshi et al. · SIGDIAL Conferences · 0 citations

#natural language process... Preprint Sep 2026

HyperTrace: Hypothesis-Based Preference Tracing for Online LLM Personalization

Experiments on PRISM and PersonaMem-v2 show that HyperTrace improves response alignment, preference prediction, and profile consistency over strong online baselines, demonstrating the effectiveness of tracing latent user preferences for robust personalization.

Jian-Zhi Shen, Ke-Yu Mao, Ming-Hao Shao et al. · 1 citation