Sentence extraction is a technique used for automatic summarization of a text. In this shallow approach, statistical heuristics are used to identify the most salient sentences of a text. Sentence extraction is a low-cost approach compared to more knowledge-intensive deeper approaches which require additional knowledge bases such as ontologies or linguistic knowledge. In short "sentence extraction" works as a filter which allows only important sentences to pass.
The major downside of applying sentence-extraction techniques to the task of summarization is the loss of coherence in the resulting summary. Nevertheless, sentence extraction summaries can give valuable clues to the main points of a document and are frequently sufficiently intelligible to human readers.
Read more about Sentence Extraction: Procedure
Famous quotes containing the words sentence and/or extraction:
“It is difficult to believe that even idiots ever succumbed to such transparent contradictions, to such gaudy processions of mere counter-words, to so vast and obvious a nonsensicality ... sentence after sentence that has no apparent meaning at all—stuff quite as bad as the worst bosh of Warren Gamaliel Harding.”
—H.L. (Henry Lewis)
“Logic is the last scientific ingredient of Philosophy; its extraction leaves behind only a confusion of non-scientific, pseudo problems.”
—Rudolf Carnap (1891–1970)