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Neural topic modeling on hyperspheres: Spherical representation learning with von Mises-Fisher mixtures

Author(s): Guo D; Luo Z; Bouguila N; Fan W;

Neural topic models (NTMs) based on variational autoencoders (VAEs) have emerged as a scalable and flexible alternative to classical probabilistic models for uncovering latent thematic structures in text corpora. However, most existing NTMs either overlook the geometric structure of word embeddings or rely on Euclidean priors that are poorly aligned with ...

Article GUID: 41791177


Deep clustering analysis via variational autoencoder with Gamma mixture latent embeddings

Author(s): Guo J; Fan W; Amayri M; Bouguila N;

This article proposes a novel deep clustering model based on the variational autoencoder (VAE), named GamMM-VAE, which can learn latent representations of training data for clustering in an unsupervised manner. Most existing VAE-based deep clustering methods use the Gaussian mixture model (GMM) as a prior on the latent space. We employ a more flexible asy ...

Article GUID: 39662201


Vaccine hesitancy: evidence from an adverse events following immunization database, and the role of cognitive biases

Author(s): Azarpanah H; Farhadloo M; Vahidov R; Pilote L;

Background: Vaccine hesitancy has been a growing challenge for public health in recent decades. Among factors contributing to vaccine hesitancy, concerns regarding vaccine safety and Adverse Events (AEs) play the leading role. Moreover, cognitive biases are critical in connecting such concerns to vaccine hesitancy behaviors, but their role has not been co ...

Article GUID: 34530804


Early Life History of Coreoperca herzi in Han River, Korea.

Author(s): Park JM, Jeon HB, Suk HY, Cho SJ, Han KH

Dev Reprod. 2020 Mar;24(1):63-70 Authors: Park JM, Jeon HB, Suk HY, Cho SJ, Han KH

Article GUID: 32411919


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