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Variational Noise-Contrastive Estimation
CoRR, 2018 Unnormalised latent variable models are a broad and flexible class of statistical models. However, learning their parameters from data is intractable, and few estimation techniques are currently available for such models. To increase the number of techniques in our arsenal, we propose variational noise-contrastive estimation (VNCE), building on NCE ...
Benjamin Rhodes, Michael U. Gutmann
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Phonetic Distinctiveness vs. Lexical Contrastiveness in Non-Robust Phonemic Contrasts
Laboratory Phonology, 2016 It is known that the mid vowel contrasts of Standard Italian distinguish few minimal pairs, may be lexically variable, and show some degree of phonological conditioning in certain varieties.
D. Robert Ladd, Margaret Renwick
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Individual variation in cone photoreceptor density in house sparrows: implications for between-individual differences in visual resolution and chromatic contrast. [PDF]
PLoS ONE, 2014 Between-individual variation has been documented in a wide variety of taxa, especially for behavioral characteristics; however, intra-population variation in sensory systems has not received similar attention in wild animals.
Amanda L Ensminger +1 more
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Adversarial and Contrastive Variational Autoencoder for Sequential Recommendation [PDF]
Proceedings of the Web Conference 2021, 2021 Sequential recommendation as an emerging topic has attracted increasing attention due to its important practical significance. Models based on deep learning and attention mechanism have achieved good performance in sequential recommendation. Recently, the generative models based on Variational Autoencoder (VAE) have shown the unique advantage in ...
Zhe Xie +5 more
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Sensors, 2020 Visual contents such as movies and animation evoke various human emotions. We examine an argument that the emotion from the visual contents may vary according to the contrast control of the scenes contained in the contents.
Heekyung Yang, Jongdae Han, Kyungha Min
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AIP Advances, 2022 The crystallographic structures of disordered materials are typically analyzed using diffractometry techniques, such as x-ray diffraction (XRD), neutron diffraction (ND), and electron diffraction (ED).
Koji Kimoto +6 more
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Fractal and Fractional, 2023 In this paper, we propose a total fractional-order variation model for multiplicative noise removal and contrast enhancement of real SAR images. Inspired by the high dynamic intensity range of SAR images, the full content of the SAR images is preserved ...
Yamei Zhou +4 more
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Radiology Case Reports, 2020 The inferior mesenteric artery arising from the superior mesenteric artery is an extremely rare anatomic variation. We report a case with this variation demonstrated with 3-dimensional contrast-enhanced computed tomography, which later was confirmed at ...
Yoshitaka Okada, MD +4 more
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Stimulus variation and dimensional contrast [PDF]
Animal Learning & Behavior, 1989 In two experiments, a maintained generalization procedure was employed to examine stimulus control of pigeons’ responses to a visual wavelength continuum. For both experiments, pigeons’ responses were periodically reinforced during wavelength values from one end of a continuum, while responses during other stimulus values were extinguished.
John M. Hinson, Jennifer J. Higa
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Food Chemistry: X, 2022 Food allergy has been a serious public health problem around the world. Its prevention relies heavily on the effective avoidance of any contaminated food, making clear and accurate detection very important.
Fang Zhang +7 more
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