unknown words

Words or tokens that are not covered by the model vocabulary and are treated as out-of-vocabulary items.

• Types

  linguistic feature

• Aliases

  UNK words, out-of-vocabulary words

• Contributors
  박진우 (dztg5apj7m) extractionAnonymous (12632b8b5f) review

• On the Properties of Neural Machine Translation: Encoder–Decoder Approaches

  7,342 citations

• Neural machine translation performs relatively well on short sentences without unknown words.
• Performance degrades rapidly as sentence length increases and as the number of unknown words increases.

• No direct concept-to-concept edges are published yet.

• neural machine translation

  method1 shared papers
• short sentences

  input category1 shared papers
• sentence length

  feature1 shared papers
• gated recursive convolutional neural network

  model1 shared papers
• grammatical structure

  linguistic property1 shared papers
• rnn encoder--decoder

  model1 shared papers