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Although the Conditional Variational AutoEncoder (CVAE) model can generate more diversified responses than the traditional Seq2Seq model, the responses often have low relevance with the input words or are illogical with the question. A…

Computation and Language · Computer Science 2022-10-12 Jiayi Liu , Wei Wei , Zhixuan Chu , Xing Gao , Ji Zhang , Tan Yan , Yulin Kang

Recent progress on neural approaches for language processing has triggered a resurgence of interest on building intelligent open-domain chatbots. However, even the state-of-the-art neural chatbots cannot produce satisfying responses for…

Computation and Language · Computer Science 2022-08-10 Behnam Hedayatnia , Di Jin , Yang Liu , Dilek Hakkani-Tur

End-to-End intelligent neural dialogue systems suffer from the problems of generating inconsistent and repetitive responses. Existing dialogue models pay attention to unilaterally incorporating personal knowledge into the dialog while…

Computation and Language · Computer Science 2021-07-19 Yajing Sun , Yue Hu , Luxi Xing , Yuqiang Xie , Xiangpeng Wei

Attention-based recurrent neural encoder-decoder models present an elegant solution to the automatic speech recognition problem. This approach folds the acoustic model, pronunciation model, and language model into a single network and…

Audio and Speech Processing · Electrical Eng. & Systems 2018-11-08 Shubham Toshniwal , Anjuli Kannan , Chung-Cheng Chiu , Yonghui Wu , Tara N Sainath , Karen Livescu

Endowing chatbots with a consistent persona is essential to an engaging conversation, yet it remains an unresolved challenge. In this work, we propose a new retrieval-enhanced approach for personalized response generation. Specifically, we…

Computation and Language · Computer Science 2023-06-13 Shuai Liu , Hyundong J. Cho , Marjorie Freedman , Xuezhe Ma , Jonathan May

This paper proposes a new model, called condition-transforming variational autoencoder (CTVAE), to improve the performance of conversation response generation using conditional variational autoencoders (CVAEs). In conventional CVAEs , the…

Computation and Language · Computer Science 2019-04-25 Yu-Ping Ruan , Zhen-Hua Ling , Quan Liu , Zhigang Chen , Nitin Indurkhya

Generative speech enhancement has recently shown promising advancements in improving speech quality in noisy environments. Multiple diffusion-based frameworks exist, each employing distinct training objectives and learning techniques. This…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-22 Julius Richter , Danilo de Oliveira , Timo Gerkmann

Generative models have excelled in audio tasks using approaches such as language models, diffusion, and flow matching. However, existing generative approaches for speech enhancement (SE) face notable challenges: language model-based methods…

Audio and Speech Processing · Electrical Eng. & Systems 2025-05-28 Ziqian Wang , Zikai Liu , Xinfa Zhu , Yike Zhu , Mingshuai Liu , Jun Chen , Longshuai Xiao , Chao Weng , Lei Xie

Accurate prediction of conversation topics can be a valuable signal for creating coherent and engaging dialog systems. In this work, we focus on context-aware topic classification methods for identifying topics in free-form human-chatbot…

Computation and Language · Computer Science 2018-10-22 Chandra Khatri , Rahul Goel , Behnam Hedayatnia , Angeliki Metanillou , Anushree Venkatesh , Raefer Gabriel , Arindam Mandal

Current state-of-the-art neural dialogue systems are mainly data-driven and are trained on human-generated responses. However, due to the subjectivity and open-ended nature of human conversations, the complexity of training dialogues varies…

Computation and Language · Computer Science 2020-03-17 Hengyi Cai , Hongshen Chen , Cheng Zhang , Yonghao Song , Xiaofang Zhao , Yangxi Li , Dongsheng Duan , Dawei Yin

Being able to generate informative and coherent dialogue responses is crucial when designing human-like open-domain dialogue systems. Encoder-decoder-based dialogue models tend to produce generic and dull responses during the decoding step…

Computation and Language · Computer Science 2021-05-04 Ziming Li , Julia Kiseleva , Maarten de Rijke

Currently end-to-end deep learning based open-domain dialogue systems remain black box models, making it easy to generate irrelevant contents with data-driven models. Specifically, latent variables are highly entangled with different…

Computation and Language · Computer Science 2022-07-27 Ye Wang , Jingbo Liao , Hong Yu , Guoyin Wang , Xiaoxia Zhang , Li Liu

While text-conditional 3D object generation and manipulation have seen rapid progress, the evaluation of coherence between generated 3D shapes and input textual descriptions lacks a clear benchmark. The reason is twofold: a) the low quality…

Computer Vision and Pattern Recognition · Computer Science 2023-09-15 Andrea Amaduzzi , Giuseppe Lisanti , Samuele Salti , Luigi Di Stefano

Identifying the topic (domain) of each user's utterance in open-domain conversational systems is a crucial step for all subsequent language understanding and response tasks. In particular, for complex domains, an utterance is often routed…

Computation and Language · Computer Science 2020-05-29 Ali Ahmadvand , Harshita Sahijwani , Jason Ingyu Choi , Eugene Agichtein

Generating diverse and relevant questions over text is a task with widespread applications. We argue that commonly-used evaluation metrics such as BLEU and METEOR are not suitable for this task due to the inherent diversity of reference…

Computation and Language · Computer Science 2020-08-18 Michael Sejr Schlichtkrull , Weiwei Cheng

Conflict prediction in communication is integral to the design of virtual agents that support successful teamwork by providing timely assistance. The aim of our research is to analyze discourse to predict collaboration success.…

Computation and Language · Computer Science 2023-02-10 Ayesha Enayet , Gita Sukthankar

We present a self-supervised method to improve an agent's abilities in describing arbitrary objects while actively exploring a generic environment. This is a challenging problem, as current models struggle to obtain coherent image captions…

Computer Vision and Pattern Recognition · Computer Science 2025-09-18 Tommaso Galliena , Tommaso Apicella , Stefano Rosa , Pietro Morerio , Alessio Del Bue , Lorenzo Natale

Audio codecs based on discretized neural autoencoders have recently been developed and shown to provide significantly higher compression levels for comparable quality speech output. However, these models are tightly coupled with speech…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-15 Jonah Casebeer , Vinjai Vale , Umut Isik , Jean-Marc Valin , Ritwik Giri , Arvindh Krishnaswamy

Recent advances in open-vocabulary object detection models will enable Automatic Target Recognition systems to be sustainable and repurposed by non-technical end-users for a variety of applications or missions. New, and potentially nuanced,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Louis Y. Kim , Michelle Karker , Victoria Valledor , Seiyoung C. Lee , Karl F. Brzoska , Margaret Duff , Anthony Palladino

Maintaining a consistent attribute profile is crucial for dialogue agents to naturally converse with humans. Existing studies on improving attribute consistency mainly explored how to incorporate attribute information in the responses, but…

Computation and Language · Computer Science 2021-05-18 Haoyu Song , Yan Wang , Wei-Nan Zhang , Zhengyu Zhao , Ting Liu , Xiaojiang Liu