СОMР5425
Week10 Semester 1, 2025
Information Summarization
Text summarization
Video Summarization
Applications
LifeLogging
Scene summarization
StoryImaging
Information Deluge
Approximately 3.5 trillion photos have been taken since Daguerre captured Boulevard du Temple 174 years ago
The box
Quantum TV DVR that records up to 12 channels at once
Summarization
Distill the essence
Provide a compact yet informative representation of a video
Crucial for effective and efficient access of video content
Fun
Incentive
Summly
http://summly.com/index.html
Founded by 17-year-old Nick D’Aloisio
Acquired by Yahoo in 26/03/2013
30 Million!!!
Text Summarization
Human summarization and abstracting
What professional abstractors do
“To take an original article, understand it and pack it neatly into a nutshell without loss of substance or clarity presents a challenge which many have felt worth taking up for the joys of achievement alone. These are the characteristics of an art form” - Ashworth.
Text Summarization
Purpose
Indicative, informative, and critical summaries
Form.
Extracts (representative paragraphs/sentences/phrases)
Abstracts: “a concise summary of the central subject matter of a document”
Dimensions
Single-document vs. multi-document
Context
Query-specific vs. query-independent
TextRank
Identify important words or sentences
Formulate the problem with graph-based solution
Keyword extraction & sentence extraction