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Recently, utilizing deep neural networks to build the opendomain dialogue models has become a hot topic. However, the responses generated by these models suffer from many problems such as responses not being contextualized and tend to…

Computation and Language · Computer Science 2023-09-07 Mengjuan Liu , Chenyang Liu , Yunfan Yang , Jiang Liu , Mohan Jing

Generative Adversarial Networks (GANs) have shown im-pressive results for image generation. However, GANs facechallenges in generating contents with certain types of con-straints, such as game levels. Specifically, it is difficult…

Neural and Evolutionary Computing · Computer Science 2019-10-04 Ruben Rodriguez Torrado , Ahmed Khalifa , Michael Cerny Green , Niels Justesen , Sebastian Risi , Julian Togelius

Although pre-trained sequence-to-sequence models have achieved great success in dialogue response generation, chatbots still suffer from generating inconsistent responses in real-world practice, especially in multi-turn settings. We argue…

Computation and Language · Computer Science 2022-03-08 Leyang Cui , Fandong Meng , Yijin Liu , Jie Zhou , Yue Zhang

Recent work has explored integrating autoregressive language models with energy-based models (EBMs) to enhance text generation capabilities. However, learning effective EBMs for text is challenged by the discrete nature of language. This…

Computation and Language · Computer Science 2023-11-14 Xuwang Yin

Dialogue Act (DA) classification is a challenging problem in dialogue interpretation, which aims to attach semantic labels to utterances and characterize the speaker's intention. Currently, many existing approaches formulate the DA…

Computation and Language · Computer Science 2018-11-14 Yao Wan , Wenqiang Yan , Jianwei Gao , Zhou Zhao , Jian Wu , Philip S. Yu

Recent neural models of dialogue generation offer great promise for generating responses for conversational agents, but tend to be shortsighted, predicting utterances one at a time while ignoring their influence on future outcomes. Modeling…

Computation and Language · Computer Science 2016-09-30 Jiwei Li , Will Monroe , Alan Ritter , Michel Galley , Jianfeng Gao , Dan Jurafsky

Task oriented language understanding in dialog systems is often modeled using intents (task of a query) and slots (parameters for that task). Intent detection and slot tagging are, in turn, modeled using sentence classification and word…

Computation and Language · Computer Science 2019-11-14 Arash Einolghozati , Sonal Gupta , Mrinal Mohit , Rushin Shah

In this paper, we extend the persona-based sequence-to-sequence (Seq2Seq) neural network conversation model to a multi-turn dialogue scenario by modifying the state-of-the-art hredGAN architecture to simultaneously capture utterance…

Computation and Language · Computer Science 2019-06-27 Oluwatobi Olabiyi , Anish Khazane , Alan Salimov , Erik T. Mueller

Speaker recognition, recognizing speaker identities based on voice alone, enables important downstream applications, such as personalization and authentication. Learning speaker representations, in the context of supervised learning,…

Machine Learning · Computer Science 2022-07-13 Metehan Cekic , Ruirui Li , Zeya Chen , Yuguang Yang , Andreas Stolcke , Upamanyu Madhow

Text classifiers are vulnerable to adversarial examples -- correctly-classified examples that are deliberately transformed to be misclassified while satisfying acceptability constraints. The conventional approach to finding adversarial…

Computation and Language · Computer Science 2024-05-21 Tom Roth , Inigo Jauregi Unanue , Alsharif Abuadbba , Massimo Piccardi

We present two categories of model-agnostic adversarial strategies that reveal the weaknesses of several generative, task-oriented dialogue models: Should-Not-Change strategies that evaluate over-sensitivity to small and…

Computation and Language · Computer Science 2018-09-07 Tong Niu , Mohit Bansal

In realistic environments, speech is usually interfered by various noise and reverberation, which dramatically degrades the performance of automatic speech recognition (ASR) systems. To alleviate this issue, the commonest way is to use a…

Sound · Computer Science 2018-05-04 Bin Liu , Shuai Nie , Yaping Zhang , Dengfeng Ke , Shan Liang , Wenju Liu1

ASR can be improved by multi-task learning (MTL) with domain enhancing or domain adversarial training, which are two opposite objectives with the aim to increase/decrease domain variance towards domain-aware/agnostic ASR, respectively. In…

Audio and Speech Processing · Electrical Eng. & Systems 2023-10-19 Wei Zhou , Haotian Wu , Jingjing Xu , Mohammad Zeineldeen , Christoph Lüscher , Ralf Schlüter , Hermann Ney

Building conversational speech recognition systems for new languages is constrained by the availability of utterances that capture user-device interactions. Data collection is both expensive and limited by the speed of manual transcription.…

Computation and Language · Computer Science 2019-12-03 Surabhi Punjabi , Harish Arsikere , Sri Garimella

Thanks to their remarkable generative capabilities, GANs have gained great popularity, and are used abundantly in state-of-the-art methods and applications. In a GAN based model, a discriminator is trained to learn the real data…

Computer Vision and Pattern Recognition · Computer Science 2018-11-21 Firas Shama , Roey Mechrez , Alon Shoshan , Lihi Zelnik-Manor

This paper presents a new adversarial learning method for generative conversational agents (GCA) besides a new model of GCA. Similar to previous works on adversarial learning for dialogue generation, our method assumes the GCA as a…

Computation and Language · Computer Science 2018-01-10 Oswaldo Ludwig

We propose to improve unconditional Generative Adversarial Networks (GAN) by training the self-supervised learning with the adversarial process. In particular, we apply self-supervised learning via the geometric transformation on input…

Computer Vision and Pattern Recognition · Computer Science 2019-05-15 Ngoc-Trung Tran , Viet-Hung Tran , Ngoc-Bao Nguyen , Ngai-Man Cheung

A common practice in knowledge-grounded dialogue generation is to explicitly utilize intermediate steps (e.g., web-search, memory retrieval) with modular approaches. However, data for such steps are often inaccessible compared to those of…

Computation and Language · Computer Science 2024-10-28 Daejin Jo , Daniel Wontae Nam , Gunsoo Han , Kyoung-Woon On , Taehwan Kwon , Seungeun Rho , Sungwoong Kim

We propose gradient adversarial training, an auxiliary deep learning framework applicable to different machine learning problems. In gradient adversarial training, we leverage a prior belief that in many contexts, simultaneous gradient…

Machine Learning · Computer Science 2018-06-22 Ayan Sinha , Zhao Chen , Vijay Badrinarayanan , Andrew Rabinovich

Despite remarkable achievements in deep learning across various domains, its inherent vulnerability to adversarial examples still remains a critical concern for practical deployment. Adversarial training has emerged as one of the most…

Machine Learning · Computer Science 2024-11-06 Junhao Dong , Xinghua Qu , Z. Jane Wang , Yew-Soon Ong