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Zixin Chen

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#artificial intelligence Preprint Sep 2026

When Users Change Their Minds: Measuring and Repairing Intent Drift in LLM Agents

Intent drift is established as a measurable multi-turn failure mode and explicit state maintenance as a partial mitigation and IntentFlux is introduced, an executable benchmark that converts verifiable tasks into dialogues with controlled intent changes while preserving their original graders.

Yan-Jie Zhang, Bo-Wen Cao, Zi-Xin Chen et al. · 0 citations
Jul 2026

Informal Learning Emerges in Everyday Human-LLM Interaction

As LLMs become increasingly capable of completing tasks for users, a central concern is that everyday AI use may become primarily cognitive offloading, eroding the opportunities through which people develop their own capabilities. We analyse large-scale human-LLM conversations to ask whether informal learning behaviors...

Zixin Chen, Haotian Li, Ziang Xiao et al. · 1 citation
Preprint Aug 2026

TACT: Taxonomy-Aligned Post-Training for Pedagogically Adaptive English Tutoring

This work presents TACT (Taxonomy-Aligned Conversational Tutor), a human-grounded framework for post-training and evaluating pedagogically adaptive ESL tutors and develops two complementary taxonomies: the Tutor-Strategy Taxonomy with 13 tutor response strategies and the Student-Move Taxonomy characterizing learner beh...

Dongjie Yang, Siya Lin, Leixian Shen et al. · 0 citations
Preprint Jul 2026

WildTrace: Benchmarking Natural Evidence Trails in Long-Context Reasoning

WILDTRACE is introduced, a benchmark of 481 tasks over 214 naturally occurring long-form sources such as technical incident reports and lesser-known literary narratives, where all evidence trails arise from the document's own causal, temporal, and narrative logic.

Zixin Chen, Peng Liu, Haobo Li et al. · 0 citations

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