Understanding Emotion in Discourse: Recognition Insights and Linguistic Patterns for Generation
- URL: http://arxiv.org/abs/2601.00181v1
- Date: Thu, 01 Jan 2026 02:49:44 GMT
- Title: Understanding Emotion in Discourse: Recognition Insights and Linguistic Patterns for Generation
- Abstract summary: We conduct a rigorous ablation study with 10-seed evaluation for recognition.<n>For linguistic analysis, we analyze 5,286 discourse marker occurrences.<n>We find a significant association between emotion and marker positioning.
- Score: 0.36980845568339205
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: While Emotion Recognition in Conversation (ERC) has achieved high accuracy, two critical gaps remain: a limited understanding of \textit{which} architectural choices actually matter, and a lack of linguistic analysis connecting recognition to generation. We address both gaps through a systematic analysis of the IEMOCAP dataset. For recognition, we conduct a rigorous ablation study with 10-seed evaluation and report three key findings. First, conversational context is paramount, with performance saturating rapidly -- 90\% of the total gain achieved within just the most recent 10--30 preceding turns (depending on the label set). Second, hierarchical sentence representations help at utterance-level, but this benefit disappears once conversational context is provided, suggesting that context subsumes intra-utterance structure. Third, external affective lexicons (SenticNet) provide no gain, indicating that pre-trained encoders already capture necessary emotional semantics. With simple architectures using strictly causal context, we achieve 82.69\% (4-way) and 67.07\% (6-way) weighted F1, outperforming prior text-only methods including those using bidirectional context. For linguistic analysis, we analyze 5,286 discourse marker occurrences and find a significant association between emotion and marker positioning ($p < .0001$). Notably, "sad" utterances exhibit reduced left-periphery marker usage (21.9\%) compared to other emotions (28--32\%), consistent with theories linking left-periphery markers to active discourse management. This connects to our recognition finding that sadness benefits most from context (+22\%p): lacking explicit pragmatic signals, sad utterances require conversational history for disambiguation.
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