textattack.transformations package

Transformations

A transformation is a method which perturbs a text input through the insertion, deletion and substiution of words, characters, and phrases. All transformations take a TokenizedText as input and return a list of TokenizedText that contains possible transformations. Every transformation is a subclass of the abstract Transformation class.

• textattack.transformations.sentence_transformations package
  • sentence_transformations package
  • BackTranslation class
  • SentenceTransformation class
• textattack.transformations.word_insertions package
  • word_insertions package
  • WordInsertion Class
  • WordInsertionMaskedLM Class
  • WordInsertionRandomSynonym Class
• textattack.transformations.word_merges package
  • word_merges package
  • Word Merge
  • WordMergeMaskedLM class
• textattack.transformations.word_swaps package
  • word_swaps package
  • Word Swap
  • Word Swap by Changing Location
  • Word Swap by Changing Name
  • Word Swap by Changing Number
  • Word Swap by Contraction
  • Word Swap by Embedding
  • Word Swap by Extension
  • Word Swap by Gradient
  • Word Swap by Homoglyph
  • Word Swap by OpenHowNet
  • Word Swap by inflections
  • Word Swap by BERT-Masked LM.
  • Word Swap by Neighboring Character Swap
  • Word Swap by swaps characters with QWERTY adjacent keys
  • Word Swap by Random Character Deletion
  • Word Swap by Random Character Insertion
  • Word Swap by Random Character Substitution
  • Word Swap by swapping synonyms in WordNet

Composite Transformation

Multiple transformations can be used by providing a list of Transformation to CompositeTransformation

class textattack.transformations.composite_transformation.CompositeTransformation(transformations)

Bases: textattack.transformations.transformation.Transformation

A transformation which applies each of a list of transformations, returning a set of all optoins.

Parameters:transformations – The list of Transformation to apply.

Transformation Abstract Class

class textattack.transformations.transformation.Transformation

Bases: textattack.shared.utils.strings.ReprMixin, abc.ABC

An abstract class for transforming a sequence of text to produce a potential adversarial example.

deterministic

word deletion Transformation

class textattack.transformations.word_deletion.WordDeletion

Bases: textattack.transformations.transformation.Transformation

An abstract class that takes a sentence and transforms it by deleting a single word.

letters_to_insert (string): letters allowed for insertion into words

Word Swap Transformation by swapping the order of words

class textattack.transformations.word_innerswap_random.WordInnerSwapRandom

Bases: textattack.transformations.transformation.Transformation

Transformation that randomly swaps the order of words in a sequence.

deterministic