Darpa Site Visit Kathrins slides

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Darpa Site Visit Kathrins slides
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Eliciation Tool Ideas, Goals

• Central ideas
• User bilingual speaker, not an expert in
  linguistics
• This user translates sentences
• The user also specifies word alignment
• Aimed at covering major typological linguistic
  features (Swadesh list)
• Goals
• Learn grammar rules
• Use these rules to automatically learn transfer
  rules

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Example of Feature Detection

• Detect features using minimal pairs
• E.G. To detect plural
• The man slept.
• The men slept.
• In the translations, compare the words for man
  and men.

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Simplifying Assumptions

• Features marked only on a word
• No mechanism yet for checking
• Changes in word order
• Changes on other words in the sentence
• One-to-one correspondence between source language
  and target language word
• Pre-defined features

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Organization of Tests
Dual
Plural
Paucal
Diagnostic Tests

Subj-V Agr


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Optimization Diagnostic Planning

• For optimization, minimize the number of
  sentences that need to be translated
• Base the sequencing and choice of tests on the
  results of previous tests
• E.g. if the corpus detects that a language has no
  feature plural, prune tests for dual,
  paucal, etc.

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System Implementation

• For each state sequence of tests
• Tests specify the indices of sentences
• Separate file with list of sentences (facilitates
  re-use of sentences for multiple tests)
• Ability to run in batch- and interactive mode