Work

Beyond Prompt-Sensitive Emotion Words: Stable Embeddings for Tang Poetry Analysis

Year: 2026
Type: conference-paper
Abstract: Many Tang-poetry emotion studies still use coarse labels (e.g., positive/negative), while recent LLM-based attempts face a practical problem: one-word emotion outputs are highly sensitive to prompt wording.When labels shift with phrasing, historical interpretation becomes hard to reproduce and hard to trust.Focusing on Tang poetry around the An Lushan Rebellion (安 史 之 乱), we propose a fine-grained sentence-level workflow centered on emotion embeddings: we use continuous hidden-state vectors, run automatic clustering, and then consolidate labels for interpretation.On the same 3,198 emotional sentences, one-word outputs show only 50.3% A/B exact agreement, while embedding-based clustering remains stable and well distributed (normalized entropy 0.989; 20/20 active clusters).On 7,195 labeled sentences, a char-based baseline reaches 0.446 micro-F1 and 0.395 macro-F1.This multi-stage label-construction path supports historically grounded findings, including the emotional turning point around 762, and also reveals layered patterns that are less visible in coarse setups.These results suggest that stable representation is a prerequisite for turning computational outputs into credible evidence for humanities interpretation.
Language: English
Open Access status: hybrid
OpenAlex ID: W7166816684
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