Moving Markup: Repositioning Freeform Annotations

1
Moving Markup Repositioning Freeform Annotations

• By
• Gene Golovchinsky
• Laurent Denoue
• User Interface Software Technology (UIST) 2002,
  Paris, France
• Presented By Suvendu Kumar Dash
• Texas AM University

2
Problem Statement

• They tried to give the freeform annotation
  experience to the users.
• Their algorithm preserves the correct position of
  annotations
• Used the ink-pen Metaphor

3
Kinds of annotation

• Explicit underlining, highlighting
• Text reader-created text chunk with a passage of
  an existing doc
• Freeform the reader can do whatever he/she wants
  on the original document as he/she can do using a
  pen on paper documents.

4
Freeform annotations

• Freeform annotations rely on their context to
  communicate meaning
• (Shifting an underline just a few pixels
  relative to the underlying text can render it
  meaningless)

5
XLibris System

• It was designed to leverage existing practices of
  reading paper documents.
• It was to create and manipulate annotations.
• Annotations are captured as stroke info, and
  other attributes like color, type of ink, time,
  identity of the user
• Annotations are transformed and repositioned as
  the underlying document changes

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How the Annotations are Repositioned? 3 Steps

• Attach each annotation to a specific location in
  the document
• a) Annotations attached to a line of text
• b) Margin bars and circled passages (word
  ranges)
• Size of the original annotation needs to be
  adjusted to the new layout
• Each Annotation saves the word range with which
  it is associated
• Splitting the stroke is done after the new
  layout is calculated
• Original Mark may need to be segmented into
  several annotations

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Discussion

• Whether these tools will help humans to go for
  annotating and reading documents on the computer?
  
• How we can share the documents with others?
• Annotations over a new version of the document?
  An evolving document.

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Gene Golovchinsky

• Homepage http//www.fxpal.com/people/gene/
• In FXPAL from October 1996
• Ph.D. in Industrial Engineering
  (Multimedia/Usability lab of the Human Factors
  group) at the University of Toronto 1996
• A year working at the IBM Myers Corners site in
  Poughkeepsie in the Human Factors group
• BS in Electrical Engineering in 1987

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Laurent Denoue

• Homepage http//www.fxpal.com/people/denoue/
• working on annotation systems, for electronic
  books and freeform annotations
• also interested in real-time note sharing
  applications
• He is a part of the Social Computing group and
  immersive teleconferencing group.
• PhD at Syscom (University of Savoie), France