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  2. Contrastive Language-Image Pre-training - Wikipedia

    en.wikipedia.org/wiki/Contrastive_Language-Image...

    This is achieved by prompting the text encoder with class names and selecting the class whose embedding is closest to the image embedding. For example, to classify an image, they compared the embedding of the image with the embedding of the text "A photo of a {class}.", and the {class} that results in the highest dot product is outputted.

  3. Contrastive analysis - Wikipedia

    en.wikipedia.org/wiki/Contrastive_analysis

    Hence, more tailor-made language design can be adopted; examples include awareness raising teaching method and hierarchical learning teaching curriculum. Second language learning: Awareness raising is the major contribution of CA in second language learning. This includes CA's abilities to explain observed errors and to outline the differences ...

  4. Contrastive Hebbian learning - Wikipedia

    en.wikipedia.org/wiki/Contrastive_Hebbian_learning

    Contrastive Hebbian learning is a biologically plausible form of Hebbian learning. It is based on the contrastive divergence algorithm, which has been used to train a variety of energy-based latent variable models. [1] In 2003, contrastive Hebbian learning was shown to be equivalent in power to the backpropagation algorithms commonly used in ...

  5. Self-supervised learning - Wikipedia

    en.wikipedia.org/wiki/Self-supervised_learning

    Contrastive self-supervised learning uses both positive and negative examples. The loss function in contrastive learning is used to minimize the distance between positive sample pairs, while maximizing the distance between negative sample pairs. [9] An early example uses a pair of 1-dimensional convolutional neural networks to process a pair of ...

  6. Adaptive histogram equalization - Wikipedia

    en.wikipedia.org/wiki/Adaptive_histogram...

    Adaptive histogram equalization (AHE) is a computer image processing technique used to improve contrast in images. It differs from ordinary histogram equalization in the respect that the adaptive method computes several histograms, each corresponding to a distinct section of the image, and uses them to redistribute the lightness values of the image.

  7. Contrast set learning - Wikipedia

    en.wikipedia.org/wiki/Contrast_set_learning

    Treatment learning is a form of weighted contrast-set learning that takes a single desirable group and contrasts it against the remaining undesirable groups (the level of desirability is represented by weighted classes). [5] The resulting "treatment" suggests a set of rules that, when applied, will lead to the desired outcome.

  8. Contrastive linguistics - Wikipedia

    en.wikipedia.org/wiki/Contrastive_linguistics

    While traditional linguistic studies had developed comparative methods (comparative linguistics), chiefly to demonstrate family relations between cognate languages, or to illustrate the historical developments of one or more languages, modern contrastive linguistics intends to show in what ways the two respective languages differ, in order to help in the solution of practical problems.

  9. Siamese neural network - Wikipedia

    en.wikipedia.org/wiki/Siamese_neural_network

    Learning in twin networks can be done with triplet loss or contrastive loss. For learning by triplet loss a baseline vector (anchor image) is compared against a positive vector (truthy image) and a negative vector (falsy image). The negative vector will force learning in the network, while the positive vector will act like a regularizer.