Papers by Longbiao Wang

6 papers
UniSonate: A Unified Model for Speech, Music, and Sound Effect Generation with Text Instructions (2026.acl-long)

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Challenge: Generative audio modeling has been fragmented into specialized tasks such as text-to-speech (TTS), text- to-music (TTM), and text-ta (TTA) specialized models require reference audio for timbre cloning and strict phoneme alignment, whereas TTA models generate unstructured textures from open-ended captions.
Approach: They propose a unified flow-matching framework capable of synthesizing speech, music, sound effects . they propose 'token injection mechanism' that projects unstructured environmental sounds into structured temporal latent space .
Outcome: The proposed framework achieves state-of-the-art performance in instruction-based TTS and TTM while maintaining competitive fidelity in TTA.
Interaction-Aware Topic Model for Microblog Conversations through Network Embedding and User Attention (C18-1)

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Challenge: Existing topic models ignore that one discusses diverse topics when dynamically interacting with different people.
Approach: They propose an Interaction-Aware Topic Model (IATM) for microblog conversations by integrating network embedding and user attention.
Outcome: The proposed model is based on three real-world microblog datasets.
A Semi-Supervised Stable Variational Network for Promoting Replier-Consistency in Dialogue Generation (D19-1)

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Challenge: Existing methods favor uninformative and non replier-specific responses due to lack of relevant information guidance.
Approach: They propose to use a semi-supervised variable network to generate replier-specific responses . they use vMF as latent space to obtain stable KL performance .
Outcome: The proposed model outperforms baseline models on two large conversation datasets and generates diverse and replier-specific responses.
Tackling Modality Heterogeneity with Multi-View Calibration Network for Multimodal Sentiment Detection (2023.acl-long)

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Challenge: Existing studies focus on fusing different features but ignore the challenge of modality heterogeneity.
Approach: They propose a text-guided fusion module with novel Sparse-Attention to reduce the negative impacts of redundant visual elements and a sentiment-based congruity constraint task to calibrate the feature shift in the representation space.
Outcome: The proposed model is competitive against existing methods and achieves state-of-the-art results on two public benchmark datasets.
Implicit Discourse Relation Recognition using Neural Tensor Network with Interactive Attention and Sparse Learning (C18-1)

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Challenge: Existing methods for implicit discourse relation recognition ignore bidirectional interactions between two arguments and sparsity of pair patterns.
Approach: They propose a neural Tensor network framework with interactive attention and sparse learning for implicit discourse relation recognition.
Outcome: The proposed framework is effective on PDTB and can be used in text summarization, conversation system and so on.
Evaluating the Expressive Appropriateness of Speech in Rich Contexts (2026.acl-long)

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Challenge: Existing methods for evaluating expressive speech focus on word accuracy, naturalness, signal quality, or emotional intensity at the utterance level.
Approach: They propose a framework for Evaluating Expressive Appropriateness in speech that assesses whether a speech sample aligns with the underlying communicative intent implied by its discourse-level narrative context.
Outcome: The proposed framework outperforms existing speech evaluation and analysis systems on a human-annotated test set.

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