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Version: v1.2.0

Supported problem types

H2O Hydrogen Torch supports an array of diverse problem types in computer vision, natural language, and audio, and each, in turn, is explained below.

Image regression​

  • Description: Image regression refers to assigning one or more continuous target labels to an input image.
  • Supported classification tasks: Multi-label.
note

To learn about the available settings for this problem type, see Experiment settings: Image regresssion.

Image classification​

  • Description: Image classification refers to assigning one or more categorical target labels to an input image; this includes binary classification, multi-class classification, and multi-label classification.
  • Supported classification tasks: Binary, multi-class, and multi-label.
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To learn about the available settings for this problem type, see Experiment settings: Image classification.

Image object detection​

  • Description: Image object detection refers to locating individual objects in an image by drawing bounding boxes around them.
  • Supported classification tasks: Multi-class.
note

To learn about the available settings for this problem type, see Experiment settings: Image object detection.

Image semantic segmentation​

  • Description: Image semantic segmentation refers to associating each pixel of an image with a class label (such as phones, pencils, or roads).
  • Supported classification tasks: Multi-class.
note

To learn about the available settings for this problem type, see Experiment settings: Image semantic segmentation.

Image instance segmentation​

  • Description: Image instance segmentation refers to locating individual objects in an image by drawing masks around them.
  • Supported classification tasks: Multi-class.

To learn about the available settings for this problem type, see Experiment settings: Image instance segmentation.

Image metric learning​

  • Description: Image metric learning refers to establishing similarity or dissimilarity between images.
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To learn about the available settings for this problem type, see Experiment settings: Image metric learning.

Text regression​

  • Description: Text regression refers to assigning one or more continuous target labels to an input text.
  • Supported classification tasks: Multi-label.
note

To learn about the available settings for this problem type, see Experiment settings: Text regression.

Text classification​

  • Description: Text classification refers to assigning one or more categorical target labels to an input text; this includes binary classification, multi-class classification, and multi-label classification.
  • Supported classification tasks: Binary, multi-class, and multi-label.
note

To learn about the available settings for this problem type, see Experiment settings: Text classification.

Text token classification​

  • Description: Text token classification refers to assigning a label to all tokens in a piece of text in contrast to text classification, where the entire text is given a label.
  • supported classification tasks: Binary and multi-class.
note

To learn about the available settings for this problem type, see Experiment settings: Text token classification.

Text span prediction​

  • Description: Text span prediction refers to finding a substring in a larger context. A typical problem is question-answering, were given a context and question, the task is to find the answer (substring) in the context.
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To learn about the available settings for this problem type, see Experiment settings: Text span prediction.

Text sequence to sequence​

  • Description: Text sequence to sequence (Seq2seq) refers to the task of predicting an output sequence given an input sequence; in other words, Seq2seq turns one sequence into another (sequence transformation).
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To learn about the available settings for this problem type, see Experiment settings: Text sequence to sequence.

Text metric learning​

  • Description: Text metric learning refers to establishing similarity or dissimilarity between texts.
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To learn about the available settings for this problem type, see Experiment settings: Text metric learning.

Audio regression​

  • Description: Audio regression refers to assigning one or more continuous target labels to input audio.
  • Supported classification tasks: Multi-label.
note

To learn about the available settings for this problem type, see Experiment settings: Audio regression.

Audio classification​

  • Description: Audio classification refers to assigning one or more categorical target labels to input audio; this includes binary classification, multi-class classification, and multi-label classification.
  • Supported classification tasks: Binary, multi-class, and multi-label.
note

To learn about the available settings for this problem type, see Experiment settings: Audio classification.

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