International Business Machines Corporation

Francesco Fusco

Diego Matteo Antognini

Peter Willem Jan Staar

Cesar Berrospi Ramis

A computer implemented method, a computer program product and a computer system and are provided to enrich downstream learning tasks. A processor stores selected text terms from a corpus of text. A processor determines an initial set of specificity scores for the selected text terms to produce a set of training samples, where each of the training samples comprise a selected text term and an initial specificity score for the selected text term. A processor trains a character-based regression model with the set of training samples. A processor retrieves an Automated Term Extraction (ATE) training data set. A processor determines specificity scores for text terms included in the ATE training data set. A processor, responsive to respective specificity score for a text term in the ATE training data set being below a threshold value, masks the text term from being used in the ATE training data set.

Determining specificity of text terms in application contexts

An example system includes a processor to compute a token-level fingerprint for each of a number of tokens in a received window of text. The processor can compute a window representation for a window of text based on the token-level fingerprints. The processor can also update the window representation in a rolling scheme when sliding the window of text.

Updating window representations of sliding window of text using rolling scheme

Ranking a plurality of text elements, each comprising at least one word, by specificity. For each text element to be ranked, such a method includes computing an embedding vector that locates a text element in an embedding space, and selecting a set of text fragments from reference text. Each of these text fragments contains the text element to be ranked and further text elements. For each text fragment, the method calculates respective distances in the embedding space between the further text elements. The method further includes calculating a specificity score for the text element to be ranked and storing the specificity score. After ranking the plurality of text elements, a text data structure using the specificity scores for text elements to extract data having a desired specificity from the data structure may be processed.

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Zurich, Switzerland

Francesco Fusco