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Home / Proceedings / Proceedings of the AAAI Conference on Artificial Intelligence, 29 / No.1: The Twenty-Ninth Conference on Artificial Intelligence

Non-Linear Regression for Bag-of-Words Data via Gaussian Process Latent Variable Set Model

March 8, 2023

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Authors

Yuya Yoshikawa

Nara Institute of Science and Technology


Tomoharu Iwata

NTT Corporation


Hiroshi Sawada

NTT Corporation


DOI:

10.1609/aaai.v29i1.9615


Abstract:

Gaussian process (GP) regression is a widely used method for non-linear prediction.The performance of the GP regression depends on whether it can properly capture the covariance structure of target variables, which is represented by kernels between input data.However, when the input is represented as a set of features, e.g. bag-of-words, it is difficult to calculate desirable kernel values because the co-occurrence of different but relevant words cannot be reflected in the kernel calculation.To overcome this problem, we propose a Gaussian process latent variable set model (GP-LVSM), which is a non-linear regression model effective for bag-of-words data.With the GP-LVSM, a latent vector is associated with each word, and each document is represented as a distribution of the latent vectors for words appearing in the document. We efficiently represent the distributions by using the framework of kernel embeddings of distributions that can hold high-order moment information of distributions without need for explicit density estimation.By learning latent vectors so as to maximize the posterior probability, kernels that reflect relations between words are obtained, and also words are visualized in a low-dimensional space.In experiments using 25 item review datasets, we demonstrate the effectiveness of the GP-LVSM in prediction and visualization.

Topics: AAAI

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HOW TO CITE:

Yuya Yoshikawa|| Tomoharu Iwata|| Hiroshi Sawada Non-Linear Regression for Bag-of-Words Data via Gaussian Process Latent Variable Set Model Proceedings of the AAAI Conference on Artificial Intelligence, 29 (2015) .

Yuya Yoshikawa|| Tomoharu Iwata|| Hiroshi Sawada Non-Linear Regression for Bag-of-Words Data via Gaussian Process Latent Variable Set Model AAAI 2015, .

Yuya Yoshikawa|| Tomoharu Iwata|| Hiroshi Sawada (2015). Non-Linear Regression for Bag-of-Words Data via Gaussian Process Latent Variable Set Model. Proceedings of the AAAI Conference on Artificial Intelligence, 29, .

Yuya Yoshikawa|| Tomoharu Iwata|| Hiroshi Sawada. Non-Linear Regression for Bag-of-Words Data via Gaussian Process Latent Variable Set Model. Proceedings of the AAAI Conference on Artificial Intelligence, 29 2015 p..

Yuya Yoshikawa|| Tomoharu Iwata|| Hiroshi Sawada. 2015. Non-Linear Regression for Bag-of-Words Data via Gaussian Process Latent Variable Set Model. "Proceedings of the AAAI Conference on Artificial Intelligence, 29". .

Yuya Yoshikawa|| Tomoharu Iwata|| Hiroshi Sawada. (2015) "Non-Linear Regression for Bag-of-Words Data via Gaussian Process Latent Variable Set Model", Proceedings of the AAAI Conference on Artificial Intelligence, 29, p.

Yuya Yoshikawa|| Tomoharu Iwata|| Hiroshi Sawada, "Non-Linear Regression for Bag-of-Words Data via Gaussian Process Latent Variable Set Model", AAAI, p., 2015.

Yuya Yoshikawa|| Tomoharu Iwata|| Hiroshi Sawada. "Non-Linear Regression for Bag-of-Words Data via Gaussian Process Latent Variable Set Model". Proceedings of the AAAI Conference on Artificial Intelligence, 29, 2015, p..

Yuya Yoshikawa|| Tomoharu Iwata|| Hiroshi Sawada. "Non-Linear Regression for Bag-of-Words Data via Gaussian Process Latent Variable Set Model". Proceedings of the AAAI Conference on Artificial Intelligence, 29, (2015): .

Yuya Yoshikawa|| Tomoharu Iwata|| Hiroshi Sawada. Non-Linear Regression for Bag-of-Words Data via Gaussian Process Latent Variable Set Model. AAAI[Internet]. 2015[cited 2023]; .


ISSN: 2374-3468


Published by AAAI Press, Palo Alto, California USA
Copyright 2022, Association for the Advancement of
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101, Palo Alto, California 94303 All Rights Reserved

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