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In this paper, we extended the method proposed in [21] to enable humans to interact naturally with autonomous agents through vocal and textual conversations. Our extended method exploits the inherent capabilities of pre-trained large…

Robotics · Computer Science 2024-12-31 Linus Nwankwo , Elmar Rueckert

In human dialogue, a single query may elicit numerous appropriate responses. The Transformer-based dialogue model produces frequently occurring sentences in the corpus since it is a one-to-one mapping function. CVAE is a technique for…

Computation and Language · Computer Science 2022-10-25 Huihui Yang

Variational autoencoders~(VAEs) have shown a promise in data-driven conversation modeling. However, most VAE conversation models match the approximate posterior distribution over the latent variables to a simple prior such as standard…

Computation and Language · Computer Science 2019-02-27 Xiaodong Gu , Kyunghyun Cho , Jung-Woo Ha , Sunghun Kim

Deep latent variable models (LVM) such as variational auto-encoder (VAE) have recently played an important role in text generation. One key factor is the exploitation of smooth latent structures to guide the generation. However, the…

Machine Learning · Computer Science 2019-12-02 Le Fang , Chunyuan Li , Jianfeng Gao , Wen Dong , Changyou Chen

In this paper we demonstrate methods for reliable and efficient training of discrete representation using Vector-Quantized Variational Auto-Encoder models (VQ-VAEs). Discrete latent variable models have been shown to learn nontrivial…

Conventional Voice Assistants (VAs) rely on traditional language models to discern user intent and respond to their queries, leading to interactions that often lack a broader contextual understanding, an area in which Large Language Models…

Human-Computer Interaction · Computer Science 2024-12-02 Amama Mahmood , Junxiang Wang , Bingsheng Yao , Dakuo Wang , Chien-Ming Huang

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

Conditional Variational AutoEncoder (CVAE) effectively increases the diversity and informativeness of responses in open-ended dialogue generation tasks through enriching the context vector with sampled latent variables. However, due to the…

Computation and Language · Computer Science 2021-06-08 Bin Sun , Shaoxiong Feng , Yiwei Li , Jiamou Liu , Kan Li

The introduction of Large Language Models (LLMs) has significantly transformed Natural Language Processing (NLP) applications by enabling more advanced analysis of customer personas. At Volvo Construction Equipment (VCE), customer personas…

Computation and Language · Computer Science 2025-05-26 Muhammed Rizwan , Lars Carlsson , Mohammad Loni

Achieving precise semantic control over the latent spaces of Variational AutoEncoders (VAEs) holds significant value for downstream tasks in NLP as the underlying generative mechanisms could be better localised, explained and improved upon.…

Computation and Language · Computer Science 2024-02-02 Yingji Zhang , Danilo S. Carvalho , Marco Valentino , Ian Pratt-Hartmann , Andre Freitas

Dialog response generation in open domain is an important research topic where the main challenge is to generate relevant and diverse responses. In this paper, we propose a new dialog pre-training framework called DialogVED, which…

Computation and Language · Computer Science 2022-11-01 Wei Chen , Yeyun Gong , Song Wang , Bolun Yao , Weizhen Qi , Zhongyu Wei , Xiaowu Hu , Bartuer Zhou , Yi Mao , Weizhu Chen , Biao Cheng , Nan Duan

Collecting human-chatbot dialogues typically demands substantial manual effort and is time-consuming, which limits and poses challenges for research on conversational AI. In this work, we propose DialogueForge - a framework for generating…

Computation and Language · Computer Science 2025-07-22 Ruizhe Zhu , Hao Zhu , Yaxuan Li , Syang Zhou , Shijing Cai , Malgorzata Lazuka , Elliott Ash

Image and language modeling is of crucial importance for vision-language pre-training (VLP), which aims to learn multi-modal representations from large-scale paired image-text data. However, we observe that most existing VLP methods focus…

Computer Vision and Pattern Recognition · Computer Science 2022-08-22 Sunan He , Taian Guo , Tao Dai , Ruizhi Qiao , Chen Wu , Xiujun Shu , Bo Ren

With the recent significant advancements in large multi-modal models (LMMs), the importance of their grounding capability in visual chat is increasingly recognized. Despite recent efforts to enable LMMs to support grounding, their…

Computer Vision and Pattern Recognition · Computer Science 2023-12-06 Hao Zhang , Hongyang Li , Feng Li , Tianhe Ren , Xueyan Zou , Shilong Liu , Shijia Huang , Jianfeng Gao , Lei Zhang , Chunyuan Li , Jianwei Yang

Human-scene vision-language tasks are increasingly prevalent in diverse social applications, yet recent advancements predominantly rely on models specifically tailored to individual tasks. Emerging research indicates that large…

Artificial Intelligence · Computer Science 2024-11-06 Dawei Dai , Xu Long , Li Yutang , Zhang Yuanhui , Shuyin Xia

While mel-spectrograms have been widely utilized as intermediate representations in zero-shot text-to-speech (TTS), their inherent redundancy leads to inefficiency in learning text-speech alignment. Compact VAE-based latent representations…

Audio and Speech Processing · Electrical Eng. & Systems 2025-12-02 Zhikang Niu , Shujie Hu , Jeongsoo Choi , Yushen Chen , Peining Chen , Pengcheng Zhu , Yunting Yang , Bowen Zhang , Jian Zhao , Chunhui Wang , Xie Chen

With the advancement of large language models (LLMs), the focus in Conversational AI has shifted from merely generating coherent and relevant responses to tackling more complex challenges, such as personalizing dialogue systems. In an…

Computation and Language · Computer Science 2025-02-13 Maria Molchanova , Anna Mikhailova , Anna Korzanova , Lidiia Ostyakova , Alexandra Dolidze

Conversational agents have made significant progress since ELIZA, expanding their role across various domains, including healthcare, education, and customer service. As these agents become increasingly integrated into daily human…

Human-Computer Interaction · Computer Science 2025-07-04 Paulo Ricardo Knob , Leonardo Scholler , Juliano Rigatti , Soraia Raupp Musse

Selective manipulation of data attributes using deep generative models is an active area of research. In this paper, we present a novel method to structure the latent space of a Variational Auto-Encoder (VAE) to encode different…

Machine Learning · Computer Science 2020-07-30 Ashis Pati , Alexander Lerch

The Variational Autoencoder (VAE) is a powerful deep generative model that is now extensively used to represent high-dimensional complex data via a low-dimensional latent space learned in an unsupervised manner. In the original VAE model,…

Sound · Computer Science 2021-06-15 Xiaoyu Bie , Laurent Girin , Simon Leglaive , Thomas Hueber , Xavier Alameda-Pineda