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texttheater / pmb2tsv

Convert CCG derivations from the Parallel Meaning Bank to column-based files
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Dependency inversion for copulas and auxiliary verbs #10

Closed texttheater closed 4 years ago

texttheater commented 5 years ago

Our dependency scheme does not handle them in English V1 sentences, so this needs to be a post-processing step.

texttheater commented 4 years ago

Idea: generate labeled dependencies, include "needs to be flipped" information into label.

texttheater commented 4 years ago

Idea: embed “corresponding token” and “head” information into co/{4 => 5} terms. Extract dependencies by traversing each token's category. For a non-inverting argument, set the head on the argument to the owner of the current token. For an inverting argument, change the current head to the head of the argument. For no argument, set the owner on the CO to the current head. With categories like (s:_\np)/(s:adj\np), do something more complicated. Here, change the current head to the head of the argument and set the head of the np argument to that as well (i.e., process two arguments in one go). Then, recurse with the remaining category (without the processed argument(s)).

Action plan:

  1. remove annotation step from derivation preprocessing
  2. change co terms to have no annotation argument, instead two arguments for the owner and the head
  3. find a new format for storing directionality rules
  4. change dependency extraction as described above