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In dialogue systems, discourse plays a crucial role in managing conversational focus and coordinating interactions. It consists of two key structures: rhetorical structure and topic structure. The former captures the logical flow of…

Computation and Language · Computer Science 2025-02-25 Jiahui Xu , Feng Jiang , Anningzhe Gao , Luis Fernando D'Haro , Haizhou Li

Vision-language models (VLMs) have demonstrated strong performance in 2D scene understanding and generation, but extending this unification to the physical world remains an open challenge. Existing 3D and 4D approaches typically embed scene…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Hanyu Zhou , Gim Hee Lee

Diffusion-based generative models have greatly impacted the speech processing field in recent years, exhibiting high speech naturalness and spawning a new research direction. Their application in real-time communication is, however, still…

Signal Processing · Electrical Eng. & Systems 2026-04-22 Simon Welker , Bunlong Lay , Maris Hillemann , Tal Peer , Timo Gerkmann

Variational auto-encoders (VAEs) are deep generative latent variable models that can be used for learning the distribution of complex data. VAEs have been successfully used to learn a probabilistic prior over speech signals, which is then…

Sound · Computer Science 2020-12-18 Mostafa Sadeghi , Simon Leglaive , Xavier Alameda-PIneda , Laurent Girin , Radu Horaud

Neural audio autoencoders create compact latent representations that preserve perceptually important information, serving as the foundation for both modern audio compression systems and generation approaches like next-token prediction and…

Sound · Computer Science 2025-09-10 Dimitrios Bralios , Paris Smaragdis , Jonah Casebeer

Unsupervised disentangled representation learning from the unlabelled audio data, and high fidelity audio generation have become two linchpins in the machine learning research fields. However, the representation learned from an unsupervised…

Audio and Speech Processing · Electrical Eng. & Systems 2020-10-20 Kazi Nazmul Haque , Rajib Rana , Björn W Schuller

In voice conversion (VC) applications, diffusion and flow-matching models have exhibited exceptional speech quality and speaker similarity performances. However, they are limited by slow conversion owing to their iterative inference.…

Sound · Computer Science 2026-02-23 Takuhiro Kaneko , Hirokazu Kameoka , Kou Tanaka , Yuto Kondo

Conventional speech enhancement (SE) aims to improve speech perception and intelligibility by suppressing noise without requiring enrollment speech as reference, whereas personalized SE (PSE) addresses the cocktail party problem by…

Audio and Speech Processing · Electrical Eng. & Systems 2025-05-20 Ziling Huang , Haixin Guan , Yanhua Long

Recent advances in generative machine learning models rekindled research interest in the area of password guessing. Data-driven password guessing approaches based on GANs, language models and deep latent variable models have shown…

Cryptography and Security · Computer Science 2021-12-15 Giulio Pagnotta , Dorjan Hitaj , Fabio De Gaspari , Luigi V. Mancini

The fashion domain encompasses a variety of real-world multimodal tasks, including multimodal retrieval and multimodal generation. The rapid advancements in artificial intelligence generated content, particularly in technologies like large…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Xiangyu Zhao , Yuehan Zhang , Wenlong Zhang , Xiao-Ming Wu

Existing methods for vision-and-language learning typically require designing task-specific architectures and objectives for each task. For example, a multi-label answer classifier for visual question answering, a region scorer for…

Computation and Language · Computer Science 2021-05-25 Jaemin Cho , Jie Lei , Hao Tan , Mohit Bansal

Normalizing Flows (NFs) learn invertible mappings between the data and a Gaussian distribution. Prior works usually suffer from two limitations. First, they add random noise to training samples or VAE latents as data augmentation,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-04 Qinyu Zhao , Guangting Zheng , Tao Yang , Rui Zhu , Xingjian Leng , Stephen Gould , Liang Zheng

Current unified multimodal models typically rely on discrete visual tokenizers to bridge the modality gap. However, discretization inevitably discards fine-grained semantic information, leading to suboptimal performance in visual…

Computer Vision and Pattern Recognition · Computer Science 2026-03-12 Yaqi Zhao , Wang Lin , Zijian Zhang , Miles Yang , Jingyuan Chen , Wentao Zhang , Zhao Zhong , Liefeng Bo

This paper introduces a multi-stage self-directed framework designed to address the spatial semantic segmentation of sound scene (S5) task in the DCASE 2025 Task 4 challenge. This framework integrates models focused on three distinct tasks:…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-18 Younghoo Kwon , Dongheon Lee , Dohwan Kim , Jung-Woo Choi

Real-world audio recordings often contain multiple speakers and various degradations, which limit both the quantity and quality of speech data available for building state-of-the-art speech processing models. Although end-to-end approaches…

Sound · Computer Science 2026-01-27 Kohei Asai , Wataru Nakata , Yuki Saito , Hiroshi Saruwatari

In this paper, we present a vocoder-free framework for audio super-resolution that employs a flow matching generative model to capture the conditional distribution of complex-valued spectral coefficients. Unlike conventional two-stage…

Audio and Speech Processing · Electrical Eng. & Systems 2026-02-06 Woongjib Choi , Sangmin Lee , Hyungseob Lim , Hong-Goo Kang

Large-scale pre-trained self-supervised learning (SSL) models have shown remarkable advancements in speech-related tasks. However, the utilization of these models in complex multi-talker scenarios, such as extracting a target speaker in a…

Audio and Speech Processing · Electrical Eng. & Systems 2024-02-21 Junyi Peng , Marc Delcroix , Tsubasa Ochiai , Oldrich Plchot , Takanori Ashihara , Shoko Araki , Jan Cernocky

With the development of pre-trained language models, remarkable success has been witnessed in dialogue understanding (DU). However, current DU approaches usually employ independent models for each distinct DU task without considering shared…

Computation and Language · Computer Science 2022-07-26 Zhi Chen , Lu Chen , Bei Chen , Libo Qin , Yuncong Liu , Su Zhu , Jian-Guang Lou , Kai Yu

We describe a method to jointly pre-train speech and text in an encoder-decoder modeling framework for speech translation and recognition. The proposed method incorporates four self-supervised and supervised subtasks for cross modality…

Computation and Language · Computer Science 2022-04-13 Yun Tang , Hongyu Gong , Ning Dong , Changhan Wang , Wei-Ning Hsu , Jiatao Gu , Alexei Baevski , Xian Li , Abdelrahman Mohamed , Michael Auli , Juan Pino

In recent years, with the realistic generation results and a wide range of personalized applications, diffusion-based generative models gain huge attention in both visual and audio generation areas. Compared to the considerable advancements…

Computer Vision and Pattern Recognition · Computer Science 2024-05-27 Shiqi Yang , Zhi Zhong , Mengjie Zhao , Shusuke Takahashi , Masato Ishii , Takashi Shibuya , Yuki Mitsufuji