Learning Sequence Neighbourhood Metrics

Details Learning Sequence Neighbourhood Metrics Learning Sequence Neighbourhood Metrics

2011-09-09

arxiv.org/abs/1109.2034v1

Computer Science

Neural and Evolutionary Computing

Scientific paper

Recurrent neural networks (RNNs) in combination with a pooling operator and the neighbourhood components analysis (NCA) objective function are able to detect the characterizing dynamics of sequences and embed them into a fixed-length vector space of arbitrary dimensionality. Subsequently, the resulting features are meaningful and can be used for visualization or nearest neighbour classification in linear time. This kind of metric learning for sequential data enables the use of algorithms tailored towards fixed length vector spaces such as R^n.

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