Method and System for Generating Contradiction Scores for Petroleum Geoscience Entities within Text using Associative Topic Sentiment Analysis.

A computer implemented process for fine grained petroleum geoscience sentiment analysis of topic associations, the system comprising:

• receiving into memory:
• sentences of text, petroleum geoscience topic lexicons and a petroleum geoscience sentiment labelled training set
• processing the data in the computer memory with a processor to detect petroleum geoscience topic associations
• processing the data in the computer memory with a processor to assign a sentiment value to a petroleum geoscience topic association(s);
• and
• outputting the petroleum geoscience topic association(s) and assigned sentiment value(s), by:
• applying a filter around the detected petroleum geoscience topic association(s), the filter having a width defined by a number of tokens, the topics having a sequence position number in the sentence, the filter output providing an input to a statistical sentiment classifier created from the petroleum geoscience sentiment labelled training set.