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Unsupervised structure learning in high-dimensional time series data has attracted a lot of research interests. For example, segmenting and labelling high dimensional time series can be helpful in behavior understanding and medical…

Machine Learning · Computer Science 2017-05-25 Hao Liu , Haoli Bai , Lirong He , Zenglin Xu

Grounding dialogue generation by extra knowledge has shown great potentials towards building a system capable of replying with knowledgeable and engaging responses. Existing studies focus on how to synthesize a response with proper…

Computation and Language · Computer Science 2022-04-13 Xueliang Zhao , Tingchen Fu , Chongyang Tao , Wei Wu , Dongyan Zhao , Rui Yan

Latent variable models for text, when trained successfully, accurately model the data distribution and capture global semantic and syntactic features of sentences. The prominent approach to train such models is variational autoencoders…

Machine Learning · Computer Science 2021-06-09 Bo Pang , Erik Nijkamp , Tian Han , Ying Nian Wu

The dynamical variational autoencoders (DVAEs) are a family of latent-variable deep generative models that extends the VAE to model a sequence of observed data and a corresponding sequence of latent vectors. In almost all the DVAEs of the…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-11 Xiaoyu Lin , Xiaoyu Bie , Simon Leglaive , Laurent Girin , Xavier Alameda-Pineda

Open-domain conversation models have become good at generating natural-sounding dialogue, using very large architectures with billions of trainable parameters. The vast training data required to train these architectures aggregates many…

Computation and Language · Computer Science 2020-09-24 Eric Michael Smith , Diana Gonzalez-Rico , Emily Dinan , Y-Lan Boureau

In this paper, we introduce the task of modeling interpersonal relationships for story generation. For addressing this task, we propose Relationships as Latent Variables for Story Generation, (ReLiSt). ReLiSt generates stories sentence by…

Computation and Language · Computer Science 2022-11-03 Anvesh Rao Vijjini , Faeze Brahman , Snigdha Chaturvedi

The Variational Autoencoder (VAE) has proven to be an effective model for producing semantically meaningful latent representations for natural data. However, it has thus far seen limited application to sequential data, and, as we…

Machine Learning · Computer Science 2019-11-12 Adam Roberts , Jesse Engel , Colin Raffel , Curtis Hawthorne , Douglas Eck

Computer simulations have become a popular tool of assessing complex skills such as problem-solving skills. Log files of computer-based items record the entire human-computer interactive processes for each respondent. The response processes…

Machine Learning · Statistics 2019-08-19 Xueying Tang , Zhi Wang , Jingchen Liu , Zhiliang Ying

We consider grounding open domain dialogues with images. Existing work assumes that both an image and a textual context are available, but image-grounded dialogues by nature are more difficult to obtain than textual dialogues. Thus, we…

Computation and Language · Computer Science 2021-06-02 Ze Yang , Wei Wu , Huang Hu , Can Xu , Wei Wang , Zhoujun Li

Diffusion models have achieved great success in modeling continuous data modalities such as images, audio, and video, but have seen limited use in discrete domains such as language. Recent attempts to adapt diffusion to language have…

Computation and Language · Computer Science 2023-11-08 Justin Lovelace , Varsha Kishore , Chao Wan , Eliot Shekhtman , Kilian Q. Weinberger

Developing a dialogue agent that is capable of making autonomous decisions and communicating by natural language is one of the long-term goals of machine learning research. Traditional approaches either rely on hand-crafting a small…

Computation and Language · Computer Science 2017-05-30 Tsung-Hsien Wen , Yishu Miao , Phil Blunsom , Steve Young

Many recent flow-matching and diffusion-style generative models rely on auxiliary stochastic dynamics during training: a richer process is simulated to define conditional targets, but the auxiliary state is either intractable to sample at…

Machine Learning · Computer Science 2026-05-21 Lukas Billera , Hedwig Nora Nordlinder , Ben Murrell

Recurrent models for sequences have been recently successful at many tasks, especially for language modeling and machine translation. Nevertheless, it remains challenging to extract good representations from these models. For instance, even…

Machine Learning · Computer Science 2018-01-31 Łukasz Kaiser , Samy Bengio

We consider the task of data-to-text generation, which aims to create textual output from non-linguistic input. We focus on generating long-form text, i.e., documents with multiple paragraphs, and propose a neural model enhanced with a…

Computation and Language · Computer Science 2022-03-01 Ratish Puduppully , Yao Fu , Mirella Lapata

The dyadic reaction generation task involves synthesizing responsive facial reactions that align closely with the behaviors of a conversational partner, enhancing the naturalness and effectiveness of human-like interaction simulations. This…

Machine Learning · Computer Science 2025-05-14 Minh-Duc Nguyen , Hyung-Jeong Yang , Soo-Hyung Kim , Ji-Eun Shin , Seung-Won Kim

In this paper, we propose a generative model which learns the relationship between language and human action in order to generate a human action sequence given a sentence describing human behavior. The proposed generative model is a…

Machine Learning · Computer Science 2017-10-25 Hyemin Ahn , Timothy Ha , Yunho Choi , Hwiyeon Yoo , Songhwai Oh

Hierarchical neural networks are often used to model inherent structures within dialogues. For goal-oriented dialogues, these models miss a mechanism adhering to the goals and neglect the distinct conversational patterns between two…

Computation and Language · Computer Science 2019-09-23 Yi-An Lai , Arshit Gupta , Yi Zhang

Natural language understanding (NLU) and natural language generation (NLG) are two fundamental and related tasks in building task-oriented dialogue systems with opposite objectives: NLU tackles the transformation from natural language to…

Computation and Language · Computer Science 2020-06-16 Bo-Hsiang Tseng , Jianpeng Cheng , Yimai Fang , David Vandyke

We propose an adversarial learning approach for generating multi-turn dialogue responses. Our proposed framework, hredGAN, is based on conditional generative adversarial networks (GANs). The GAN's generator is a modified hierarchical…

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

Pre-trained models have achieved excellent performance on the dialogue task. However, for the continual increase of online chit-chat scenarios, directly fine-tuning these models for each of the new tasks not only explodes the capacity of…

Computation and Language · Computer Science 2022-03-22 Shaoxiong Feng , Xuancheng Ren , Kan Li , Xu Sun