Presentation given at ECDL 2008, 12th European Conference on Research and Advanced Technology for Digital Libraries, Aarhus, Denmark, September 2008 ABSTRACT: In digital libraries, much of the reading activity is still done on printed copies of documents. We show how digital pen and paper technologies can be used to support readers by automatically creating interactive paper versions of digital documents during the printing process that enable users to activate embedded hyperlinks to other documents and services from printed versions. The approach uses a special printer driver that allows information about hyperlinks to be extracted and stored at print time. Users can then activate hyperlinks in the printed document with a digital pen.

1. Interactive Paper as a Reading Medium
in Digital Libraries
Moira C. Norrie, Beat Signer and Nadir Weibel
Institute for Information Systems, ETH Zurich
8092 Zurich, Switzerland
ECDL 2008, September 16

2. Bridging the Paper-Digital Divide
ECDL 2008, September 16 Beat Signer, signer@inf.ethz.ch

3. Digital Pen and Paper
 Pattern license and
camera technology
offered by Anoto
 virtual paper space of
60 million km2
 Pen manufacturers
 Nokia
 Maxell
 Adapx
 Livescribe
ECDL 2008, September 16 Beat Signer, signer@inf.ethz.ch

4. Interactive Paper Areas
Linking active areas to resources
image
video clip
ECDL 2008, September 16 Beat Signer, signer@inf.ethz.ch

5. RSL Metamodel and iServer
ECDL 2008, September 16 Beat Signer, signer@inf.ethz.ch

6. PaperWeb
 Print arbitrary web pages
with special printer driver
 Browse the Web on paper
(interactive hyperlinks)
 Automatic link authoring
ECDL 2008, September 16 Beat Signer, signer@inf.ethz.ch

7. Different Web Page Layouts
ECDL 2008, September 16 Beat Signer, signer@inf.ethz.ch

8. PaperWeb Architecture
ECDL 2008, September 16 Beat Signer, signer@inf.ethz.ch

9. Hyperlink Highlighter
 Operations on DOM tree
 search for <a href> and <area> elements
 create <div> elements for bounding box and
link target
ECDL 2008, September 16 Beat Signer, signer@inf.ethz.ch

10. Hyperlink Analyser
<Glyphs <Glyphs Fill="#ffFFFFFF"
Fill="#ff000000" FontUri="/Documents/1/Resources/
FontRenderingEmSize="4.32017" Fonts/06465132-FEA1-401B-92DF-
FontUri="/Documents/1/ F7C4CAF0B03A.odttf"
Resources/Fonts/083FE3E4- FontRenderingEmSize="1.28"
4F2E-85D9-B082CEBD45E.odttf" StyleSimulations="None"
StyleSimulations="None" OriginX="57.92" OriginY="138.56"
OriginX="54.08"
OriginY="105.92" Indices="76,63;71,50;82,50;70,50;
Indices="40;55;43;3;61;88; 53,50;72,50;86,62;29,50;75,50;
85;76;70;75" 87,50;87,50;83,50;29,63;18,50;
UnicodeString="ETH Zurich"/> 18,50;90,100;90,112;90,100;17,50;
72,50;87,50;75;93,49;17,50;70,50;
75,50;18,50;76,63;81,50;71,50;
<Path 72,50;91,50;66,50;40,62;49"
Fill="#ffFFFFFF"
Data="F1 M 54.08, 101.6 L UnicodeString="idocRes:
78.08, 101.6 78.08, http://www.ethz.ch/index_EN"/>
106.72 54.08, 106.72 z"/>
ECDL 2008, September 16 Beat Signer, signer@inf.ethz.ch

11. Query by Sketching (QbS)
 Paper-based image
retrieval interface
 Initial prototype developed
as part of DELOS
 Project partners
 University of Basel
(Prof. Heiko Schuldt)
 GlobIS group, ETH Zurich
ECDL 2008, September 16 Beat Signer, signer@inf.ethz.ch

12. Conclusions
 Automatic integration of paper documents with
digital information and services
 Extensible infrastructure
 iServer plug-ins
 iPublish and iDoc plug-ins
 Future challenges
 distributed global architecture (e.g. pattern space
management, document mappings)
ECDL 2008, September 16 Beat Signer, signer@inf.ethz.ch

13. Further Information
Prof. Moira Norrie Dr. Beat Signer Nadir Weibel Adriana Ispas
 http://vub.academia.edu/BeatSigner
 Fundamental Concepts for Interactive Paper
and Cross-Media Information Spaces, Beat
Signer, ISBN 978-3-8370-2713-6, May 2008
ECDL 2008, September 16 Beat Signer, signer@inf.ethz.ch