Challenge: Existing intent clustering methods rely on embedding distance metrics and neglect of underlying semantic structures.
Approach: They propose an LLM-in-the-loop framework that integrates language understanding capabilities into conventional clustering algorithms.
Outcome: The proposed framework outperforms baselines in Chinese and improves quality, cost efficiency and downstream applications.

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Challenge: Existing approaches to intent detection rely on epoch wise clustering and classification based on labeled and unlabeled data.
Approach: They propose an end-to-end deep contrastive clustering algorithm that jointly updates model parameters and cluster centers via supervised and self-supervised learning.
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Learning LLM Preference over Intra-Dialogue Pairs: A Framework for Utterance-level Understandings (2025.naacl-industry)

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Challenge: Large language models (LLMs) have demonstrated remarkable capabilities in handling complex dialogue tasks without requiring use case-specific fine-tuning.
Approach: They propose a framework that combines the scalability of LLM-generated labels with the precision of human annotations to achieve higher speed and accuracy comparable to larger models.
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Controllable Clustering with LLM-driven Embeddings (2025.emnlp-industry)

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Challenge: Unsupervised text clustering is unlikely to produce groupings that work across use cases . authors present techniques to effectively control text embeddings with minimal human input .
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Auto-Dialabel: Labeling Dialogue Data with Unsupervised Learning (D18-1)

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Challenge: Existing dialog datasets rely on human labeling, which is expensive, limited in size, and in low coverage.
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A User-Centric Multi-Intent Benchmark for Evaluating Large Language Models (2024.emnlp-main)

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Challenge: Existing benchmarks focus on specific predefined model abilities, such as world knowledge, reasoning, etc., making it difficult for users to determine which LLM best suits their particular needs.
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LLMs Enable Bag-of-Texts Representations for Short-Text Clustering (2026.acl-long)

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Challenge: Existing methods for short text clustering require labeling and no embeddings optimization.
Approach: They propose a training-free method for unsupervised short text clustering that relies less on careful selection of embedders than other methods.
Outcome: The proposed method achieves comparable or superior results to state-of-the-art methods, but without embeddings optimization or prior knowledge of clusters or labels.
Large Language Models Know Your Contextual Search Intent: A Prompting Framework for Conversational Search (2023.findings-emnlp)

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Challenge: Existing methods for understanding users’ contextual search intent show unsatisfactory effectiveness and robustness to handle real conversational search scenarios.
Approach: They propose to use large language models to generate multiple query rewrites and hypothetical responses and to aggregate them into an integrated representation that can robustly represent the user’s real contextual search intent.
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Do LLMs Understand Dialogues? A Case Study on Dialogue Acts (2025.acl-long)

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Challenge: Large Language Models (LLMs) have shown remarkable performance on many unseen tasks in a zero-shot setting.
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LLM-Guided Semantic Relational Reasoning for Multimodal Intent Recognition (2025.emnlp-main)

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Challenge: Existing methods for understanding intents from multimodal signals exhibit limitations in their modality-level reliance, constraining relational reasoning over fine-grained semantics for complex intent understanding.
Approach: They propose a method that harnesses the expansive knowledge of large language models to establish semantic foundations that boost smaller models’ relational reasoning performance.
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Scaling Intent Understanding: A Framework for Classification with Clarification using Lightweight LLMs (2026.eacl-industry)

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Challenge: Proprietary large-language models (LLMs) assign intents to user utterances without addressing ambiguity.
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