Title: Hypermedia Presentation Generation on the Web
1HypermediaPresentation Generationon the Web
- Lynda Hardman
- Jacco van Ossenbruggen
- CWI Amsterdam
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4Presentation Generation
Correct Relevant information
convey
User
5Tailored presentation
6Three ingredients
Content
7Content of example
Genre paintings, drawings or prints depict people
in their everyday surroundings at home, in a
café or at work. They appear to be painted from
life, but in reality were usually thought up in
the artist's studio. Sometimes (but not always!)
they contain a moral lesson. In some works the
message is clear, in other cases the viewer has
to make an effort to interpret the picture.
Often, however, these household scenes are simply
decorative paintings designed to entertain and
amuse.
8Three ingredients
Presentation structure
Content
9Presentation structure of example
Genre Vermeer
title
examples
description
Genre paintings, drawings or prints depict people
in their everyday surroundings at home, in a
café or at work. They appear to be painted from
life, but in reality were usually thought up in
the artist's studio. Sometimes (but not always!)
they contain a moral lesson. In some works the
message is clear, in other cases the viewer has
to make an effort to interpret the picture.
Often, however, these household scenes are simply
decorative paintings designed to entertain and
amuse.
10Three ingredients
Aesthetics
Presentation structure
abcdefghij abcdefghijklmn ABCDEFGHIJK abcdefghijkl
m abcdefghijklm
Content
11Aesthetics of example
Fonts
Layout
Colours
Colours
12Tailored presentation
13One size doesnt fit all
14What we need is
Correct and relevant information
- presented to the user
- conveying underlying relations in the subject
matter - at a suitable level of detail
- in the time available to the user
- using appropriate media
- in an appropriate style
- making optimal use of the delivery context
15Create models
- Need
- Convey underlying relations
- Suitable level of detail
- Time available to user
- Appropriate media
- Appropriate style
- Device characteristics
- Knowledge of
- Domain
- Discourse
- User task
- Media characteristics
- Graphic design
- Device capabilities
16Encyclopaedia
17Storyteller
18Create models
- Need
- Convey underlying relations
- Suitable level of detail
- Time available to user
- Appropriate media
- Appropriate style
- Device characteristics
- Knowledge of
- Domain
- Discourse
- User task
- Media characteristics
- Graphic design
- Device capabilities
to drive the creation of presentations
19Design dependencies
Aesthetics
Presentation structure
abcdefghij abcdefghijk ABCDEFGHIJK abcdefghijk abc
defghijk
Content
20Presentation structure depends on content
21What is the Web?
- A standard means of
- locating information (URI)
- describing documents (HTML, XML)
- transferring documents (HTTP)
22What is Web Multimedia?
- A standard means of
- locating media items (URI)
- describing multimedia documents (SMIL)
- including timing (XHTMLTIME, SVG)
23What is the Semantic Web?
- A standard means of
- labelling connections (RDF) among objects
(URI) - categorising objects and their connections (RDF
Schema) - specifying constraints on the connections and
the objects (OWL)
24Cuypersmultimedia generation engine
MMDB
MetadataDB
Cuypers Engine
25Cuypers Knowledge Sources
User Query
MMDB
MetadataDB
Cuypers Engine
26Example scenario
- User is interested in Rembrandt and wants to know
about about the chiaroscuro technique - System responds with textual explanation of the
technique and a number of example images of its
application in Rembrandts paintings
27Example - Annotated SMIL
Combine Content text, images Document
structure SMIL timing, layout,
links "Message" Rembrandt is-a painter
28Using an existing ontology
- See http//www.cwi.nl/media/semantics/
- lt?xml version1.0?gt
- lt!-- taken from http//www.ics.forth.gr/proj/isst/
RDF/RQL/rql.html --gt - ltrdfRDF xmllangen
- xmlnsrdfhttp//www.w3.org/1999/02/22-rdf-synta
x-ns - xmlnsrdfshttp//www.w3.org/TR/2000/CR-rdf-sche
ma-20000327 - xmlnsgt
- ltrdfsClass rdfIDArtist/gt
- ltrdfsClass rdfIDArtifact/gt
- ltrdfsClass rdfIDMuseum/gt
- ltrdfsClass rdfIDPaintergt
- ltrdfssubClassOf rdfresourceArtist/gt
- lt/rdfsClassgt
- ltrdfsClass rdfIDPaintinggt
- ltrdfssubClassOf rdfresourceArtifact/gt
- lt/rdfsClassgt
- ...
- lt/rdfRDFgt
29Embedding RDF in SMIL - I
- ltsmil xmlns"http//www.w3.org/2000/SMIL20/CR"gt
- ltheadgt
- ltmeta name"generator" content"CWI/Cuypers
1.0"/gt - ltmetadatagt
- ltrdfRDF xmllang"en"
- xmlnsrdf"http//www.w3.org/1999/0
2/22-rdf-syntax-ns" - xmlnsoil"http//www.ontoknowledge
.org/oil/" - xmlnsmuseum"http//ics.forth.gr/.
../museum.rdf" -
- ltmuseumMuseum rdfID"Rijksmuseum" /gt
- ltmuseumPainter rdfID"Rembrandt"gt
- ltmuseumfnamegtRembrandtlt/museumfnamegt
- ltmuseumlnamegtHarmenszoon van
Rijnlt/museumlnamegt - ltmuseumpaints rdfresource"apostlePau
l" /gt - lt/museumPaintergt
-
- ltmuseumPainting rdfabout"apostlePaul"gt
- ltmuseumexhibited rdfresource"Rijksmu
seum" /gt
30Embedding RDF in SMIL - II
- ltmuseumPainting rdfabout"apostlePaul"gt
- ltmuseumexhibited rdfresource"Rijksmu
seum" /gt - ltmuseumtechniquegtchiaroscurolt/museumte
chniquegt - lttokenpainted-by rdfresource"Rembran
dt" /gt - lt/museumPaintinggt
- lt/rdfRDFgt
- lt/metadatagt
- ...
- Â Â lt/headgt
- ltbodygt
- ltpargt
- lttext region"title" src"...query to MM
DBMS..."/gt - lttext region"descr" src"..."/gt
- ltseqgt
- ltpar dur"10"gt ... 1st paintingtitle ...
lt/pargt - ltpar dur"10"gt ... 2nd paintingtitle ...
lt/pargt - ltpar dur"10"gt ... 3rd paintingtitle ...
lt/pargt - ltpar dur"10"gt ... 4th paintingtitle ...
lt/pargt - ltpar dur"10" id"apostlePaul"gt
31Marked-up presentation
- ltmuseumPainting rdfabout"apostlePaul"gt
- ltmuseumexhibited rdfresource"Rijksmuseum"/gt
ltmuseumtechniquegtchiaroscurolt/museumtechniquegt - lt/museumPaintinggt
- lt/rdfRDFgt
- lt/metadatagt
- ...
- Â Â lt/headgt
- ltbodygt
- ltpargt
- lttext region"title" src"..."/gt
- lttext region"descr" src"..."/gt
- ltseqgt
- ltpar dur"10"gt ... lt/pargt
- ltpar dur"10"gt ... lt/pargt
- ltpar dur"10"gt ... lt/pargt
- ltpar dur"10"gt ... lt/pargt
- ltpar dur"10" id"apostlePaul"gt
- ltimg region"img" src"..."/gt
- lttext region"ptitle" src".."/gt
32Cuypers the bad news
- Currently all our design knowledge is
- implicit and hidden in the generation rules
- lost in the generated Web presentation
- not reusable for other Web applications/sites
We need the Semantic Web
33Topia
34Conclusions
- Generating multimedia presentations requires
- making design dependencies explicit
- taking these dependencies into account
- Semantic Web has the potential to
- encode knowledge we use
- reuse knowledge already available
- Cuypers and Topia systems
- provide experimentation platforms
- using standard tools and languages as much as
possible