Difference between revisions of "Text summarization"

From Cohen Courses
Jump to navigationJump to search
Line 12: Line 12:
 
== Evaluation ==
 
== Evaluation ==
  
One commonly used  evaluation metric in summarization is ROUGE, which is used in NIST's Document Understanding Conferences summarization tasks.
+
One commonly used  evaluation metric in summarization is [[Metric::ROUGE]], which is used in NIST's Document Understanding Conferences summarization tasks.
  
 
== Example Systems ==
 
== Example Systems ==

Revision as of 16:00, 30 September 2010

Summary

Text Summarization (also known as summarization, and automatic summarization) is a natural language processing task which focuses on creating shortened versions of texts with computer algorithms/software that retain the important points of the original piece of text.

Common Approaches

Common approaches to text summarization can typically be broken down into one of the following categories:

  • Extraction, extracts most important information (sentences or paragraphs) from original text and copies them to make summary
  • Abstraction, paraphrases sections in the original text and relies on language generation to make the summaries coherent

Evaluation

One commonly used evaluation metric in summarization is ROUGE, which is used in NIST's Document Understanding Conferences summarization tasks.

Example Systems

References / Links

  • A bit outdated website with some references related to text summarization - [1]
  • Wikipedia article on automatic summarization - [2]