Dimensions of Media Object Compehensibility Lawrie Hunter Kochi University of Technology
-
Upload
tracey-holmes -
Category
Documents
-
view
216 -
download
0
Transcript of Dimensions of Media Object Compehensibility Lawrie Hunter Kochi University of Technology
Dimensions of Media Object Compehensibility
Lawrie HunterKochi University of Technologyhttp://www.core.kochi-tech.ac.jp/hunter/
Dimensions of Media Object Compehensibility
Lawrie HunterKochi University of Technologyhttp://www.core.kochi-tech.ac.jp/hunter/
KUT
Island of Shikoku
A pattern language for MMC
Source of insight: language / language learning
Second language (L2) learning: a cognitive process?
Comprehension of partially acquired L2: revealing of the nature of text/media.
Language learning issues are germane to MMC.
Tempering: questions of significance and applicability for machine automation.
A pattern language for MMCInterventionauthor's structural model of content information (for second language learning materials)
Discussion of parameters of difficulty
Ground: related issues in second language learning materials
Exemplars‘considerate text’ ‘considerate multimedia’
Generating parameters of difficulty in media object comprehension
Backgroundwork towards a human-communication paradigm for the guidance of machines
Framethe new multidisciplinary approach of machine-mediated communication
Objectivedevelopment of a pattern language for that multidisciplinary approach to MMC
Focusfactors influencing the difficulty of comprehension of media objects
Question how media objects carry information.
L2 learning materials
must all be more immediately apparent to the learner than in the case of materials for L1 medium learning scenarios
The creation of second language (L2) learning materials demands document transparency:
1. document purpose2. document content3. target behavior4. target lexical items
The creation of second language (L2) learning materials demands document transparency:
L2 learning materials
1. document purpose2. document content3. target behavior4. target lexical items
work towards transparency is informed by
difficulty-related issues
difficulty-related issues inform
human interaction with info media
Earlier work: an EAP tool
*in a talk to KMI at the Open University
David Kolb* re using hypertext to present scholarly text:
"...the easiest ways of making a complex argument available in HTtend to move the text toward linear structures that do not take full advantage of the possibilities of linked text."
Earlier work: an EAP tool
*in a talk to KMI at the Open University
David Kolb* re using hypertext to present scholarly text:
"...the easiest ways of making a complex argument available in HTtend to move the text toward linear structures that do not take full advantage of the possibilities of linked text."
"...what the HT can do is present the argument,but also use linkage and juxtaposition to make the reader’s engagement with the argumentmore creative, self-conscious, and self-critical."
Earlier work: an EAP tool
Lawrie Hunter re using hypertext to present technical L2 text:
For the L2 reader, engagement can only be enhancedif the rhetorical and information structures are articulated.
Earlier work: an EAP tool
Lawrie Hunter re using hypertext to present technical L2 text:
For the L2 reader, engagement can only be enhancedif the rhetorical and information structures are articulated.
What the HT can do for the NNR/W is tp present simultaneously the various faces of a research paper:
the rhetorical moves;the bits of structured information; the text; necessary glosses.
* NNR/W EAP = non-native reader/writer of English for Academic Purposes
Earlier work: an EAP tool
Lawrie Hunter re using hypertext to present technical L2 text:
For the L2 reader, engagement can only be enhancedif the rhetorical and information structures are articulated.
What the HT can do for the NNR/W is to present simultaneously the various faces of a research paper:
the rhetorical moves;the bits of structured information; the text; necessary glosses.
And if the NNR/Ws design their personal interface,a negotiated pattern language of NNR/W EAP* will emerge.
* NNR/W EAP = non-native reader/writer of English for Academic Purposes
Arguably important direction
"Tomorrow's literacies... need to be process and systems literacies.”
-John Thackara,
In the Bubble: Designing in a complex world.MIT Press 2005.
Rhetoricalstructures
Knowledgestructures
Cohesiondevices
Grammar(sentence surface structure)
Background
Extension
DiversionsTrain of argument
This is thedomain oftexturedown here.
This is thedomain ofstructuresup here.
Rhetorical structure theory,systemic functional linguistics and knowledge structure mapping form a hierarchy of structures, whereas grammar and sentence diagrams reflect rules for texture management.
Functionalstructures
Structural view of writing
Rhetoricalstructures
Knowledgestructures
Cohesiondevices
Grammar(sentence surface structure)
Background
Extension
DiversionsTrain of argument
Falsehierarchy:the trainstops here.
This is thedomain oftexturedown here.
This is thedomain ofstructuresup here.
Rhetorical structure theory,systemic functional linguistics and knowledge structure mapping form a hierarchy of structures, whereas grammar and sentence diagrams reflect rules for texture management.
Functionalstructures
Structural view of writing
L2 reader needs analysis
Knowledge
Niche grammar structures
Niche rhetorical structures
General register repertoires
(distinguishing formal academic from
informal academic)
Research Paper text structure and
information structure
Language skills
Argument sequencing
Info-structuredsentence generation
Mimicry of model language
Facilities
Concordance & collocation resource
Bank of modelresearch papers
(annotated*)
*c.f. Brown and Brown’s ‘annotation’
L2 reader wants analysis
In a technical hypertext, L2 reader/writers want*:
1. Glossing (of 'difficult' terms and phrases)
2. Moves indicator
3. Lexia position indicator
4. PDF-drawer-like phrase recurrence tab
5. Register converter
(e.g. research paper <=> presentation script)
6. Information structure maps for atomic utterances
7. Overall argument map on every lexia
(similar to Horn's argument maps
or Rhetorical Structure Analysis?)
*Based on a survey of 22 PhD engineering students
Technical hypertext design:
WANTS
NEEDS
…The language, and the processes which stem from it, merely release the fundamental order which is native to us. They do not teach us, they only remind us of what we know already, and of what we shall discover time and time again, when we give up our ideas and opinions, and do exactly what emerges from ourselves.
-Christopher Alexander, The Timeless Way of Building
A pattern language?www.patternlanguage.com
Do humans have aGRAPHIC THOUGHT FACILITY?
The knowledge structure map is a matrix (confluence) for the situated learner* and the situated mentor to confirm context and the nature of "stolen property."**
*Jean Lave**Duguid and Brown
<$$$
!
Hunter’s knowledge structure map links
<big
Description Classification
Degreecomparison
Attributecomparison
Sequence Cause-effect
Contrast
!
2005 project: design level
EEAP* students: HT designsfor the analysis of technical academic papers.
*EEAP = Engineering English for Academic Purposes,a subset of EAP,which is a subset of ESP (English for Specific Purposes)
Hunter L. (2005) Technical Hypertext Accessibility: Information Structures and Rhetorical Framing. Presentation at HyperText 2005, Salzburg. http://www.lawriehunter.com/presns/%20HT05poster0818.htm
TEXT STRUCTURE
Introduction
Background
Question
Methods andmaterials
Results
Observations
Conclusion
INFOMAP(s) INFOSTRUCTURE
Describe
Classify
Compare
Sequence
Cause-effect
Contrast
UTTERANCE(s)
In general, power plants boil some liquid to make steam, which rotates turbines, which generate electricity.
Power plants boil a liquid to produce steam, which is used to rotate turbines, which in turn generate electricity.
RHETORICALMOVES
Commonknowledge
CiteReportExplain
Claim
Question
Qualify
Evaluate
DecideInfer
Project
TEXT STRUCTURE
Introduction
Background
Question
Methods andmaterials
Results
Observations
Conclusion
INFOMAP(s) INFOSTRUCTURE
Describe
Classify
Compare
Sequence
Cause-effect
Contrast
UTTERANCE(s)
Traditional power plants use fossil fuel heat or heat from nuclear fission to boil water and produce steam at 500°C.
Older type power plants boil water with heat from fossil fuel combustion or nuclear fission to produce steam with a temperature of 500°C.
RHETORICALMOVES
Commonknowledge
CiteReportExplain
Claim
Question
Qualify
Evaluate
DecideInfer
Project
TEXT STRUCTURE
Introduction
Background
Question
Methods andmaterials
Results
Observations
Conclusion
INFOMAP(s) INFOSTRUCTURE
Describe
Classify
Compare
Sequence
Cause-effect
Contrast
UTTERANCE(s)
OTEC power plants use seawater heat to boil ammonia and produce steam at 20°C.
OTEC type power plants boil ammonia with the heat of the sea to produce steam with a temperature of 20°C.
RHETORICALMOVES
Commonknowledge
CiteReportExplain
Claim
Question
Qualify
Evaluate
DecideInfer
Project
RHETORICALMOVES
Commonknowledge
CiteReportExplain
Claim
Question
Qualify
Evaluate
DecideInfer
Project
TEXT STRUCTURE
Introduction
Background
Question
Methods andmaterials
Results
Observations
Conclusion
INFOMAP(s) INFOSTRUCTURE
Describe
Classify
Compare
Sequence
Cause-effect
Contrast
UTTERANCE(s)
Traditional power plants use fossil fuel heat or heat from nuclear fission to boil water and produce steam at 500°C, whereas OTEC type power plants boil ammonia using the heat of the sea to produce steam with a temperature of 20°C.
Older type power plants boil water with heat from fossil fuel combustion or nuclear fission to produce steam with a temperature of 500°C, while OTEC power plants use seawater heat to boil ammonia and produce steam at 20°C.
Rhetoricalstructures
Knowledgestructures
Cohesiondevices
Grammar(sentence surface structure)
Background
Extension
DiversionsTrain of argument
Falsehierarchy:the trainstops here.
This is thedomain oftexturedown here.
This is thedomain ofstructuresup here.
Rhetorical structure theory,systemic functional linguistics and knowledge structure mapping form a hierarchy of structures, whereas grammar and sentence diagrams reflect rules for texture management.
Functionalstructures
Structural view of writing
Structural view of writing
Grammar
stagingInformation orchestration
Rhetoric, flow
Sentence levelPrescriptive order charts (linear);
sentence diagrams
Knowledge structure maps
Topic/stress and subject-verb distance
gizmos
Paragraph level Readability chartsKnowledge structure maps
Old/new and topic/stress
gizmos
Document levelReadability outlines
Knowledge structure maps
Old/new and topic/stress
gizmos
2006~ new layer: READABILITY
The missing link in technical academic writing:
Gopen’s readability-subject-verb distance-topic position / stress position-old/new information placement
Background: readability work
In the design of traditional high-text language learning materials, readability is a prominent concern.Reading difficulty has for some time been seen as depending on
-word length-sentence length-text length-number of sentences per paragraph-vocabulary ‘difficulty’
More recent work has extended this list to include -subject-verb distance -adherence to old/new position conventions-topic position/stress position conventions
Treated extensively inHunter L. (1998) Text Nouveau: Visible Structure in Text Presentation. Computer Assisted Language Learning 11(4) pp. 363-379.
Background: MM readability
Treated extensively inHunter L. (1998) Text Nouveau: Visible Structure in Text Presentation. Computer Assisted Language Learning 11(4) pp. 363-379.
Chun, D. M. and Plass, J. L. 1997.
Research on text comprehension in multimedia environments.
Language learning and technology 1(1): 60-81.
2006~ new layer: READABILITY
Hunter’s newTAW syllabus:assume grammar
Page
1 Readability and cohesion
Topic / stress positions Old / new information Subject-verb separation Logic gaps Ambiguity
2 Usage Dictionaries, guides, corpus and concordance
3 Registers Formal academic Informal academic Casual
4 Abstracts and introductions
The structure of a paper Outlining Summarizing
5 Organization of information
Situation-problem-solution-evaluation General-Specific
6
Information structures, information mapping
Description Classification Comparison, including pie and bar graphs Sequence, including line and bar graphs Cause-Effect Inference (deduction/induction) Pro and Con
7 Rhetoric vs. information
Background information / new content
8 English models
The Style Dossier: model language selection / evaluation Mimicry skills Plagiarism avoidance
9 Data commentaries
10 Appendix: language features
TAW -related grammar points Usage points
2006~ new layer: READABILITY Page
1 Readability and cohesion
Topic / stress positions Old / new information Subject-verb separation Logic gaps Ambiguity
2 Usage Dictionaries, guides, corpus and concordance
3 Registers Formal academic Informal academic Casual
4 Abstracts and introductions
The structure of a paper Outlining Summarizing
5 Organization of information
Situation-problem-solution-evaluation General-Specific
6
Information structures, information mapping
Description Classification Comparison, including pie and bar graphs Sequence, including line and bar graphs Cause-Effect Inference (deduction/induction) Pro and Con
7 Rhetoric vs. information
Background information / new content
8 English models
The Style Dossier: model language selection / evaluation Mimicry skills Plagiarism avoidance
9 Data commentaries
10 Appendix: language features
TAW -related grammar points Usage points
Textural Structural
Grammar Lexical patterns
Register Knowledge structures
Cohesion Coherence/readability
Functional grammar Information organization
Rhetorical device Rhetorical structure
Readability
The creation of second language (L2) learning materials demands appropriate readability.
1. understandable by the learner2. ‘stretching’ learner knowledge/skill3. contextualized to support stretching4. orchestrated with degrees of scaffolding
Considerate text
Original framing:・ well-written,・ well-organized, and・ signals the organization of its thought to the reader
One inroad to readability is considerate text:
Considerate text
Original framing:・ well-written,・ well-organized, and・ signals the organization of its thought to the reader
One inroad to readability is considerate text:
More recent takes:-glossing-phrase boundary marking-de-idiomatizing-the Plain English movement-graphic organizers -text nouveau
Text nouveau is still text
Text comprehension in multimedia environments is a rich variant, BUT :
Chun, D. M. and Plass, J. L. 1997.
Research on text comprehension in multimedia environments.
Language learning and technology 1(1): 60-81.
Text nouveau is still text
Text comprehension in multimedia environments is a rich variant, BUT :
Chun, D. M. and Plass, J. L. 1997.
Research on text comprehension in multimedia environments.
Language learning and technology 1(1): 60-81.
Sharing considerate text
Appropriateness of learning materials/tasks is very complex.Tagging of these materials & tasks is daunting.
L2 learning objects: welcome to the TagTower of Babel!
KUT English is a Moodle department.
Sharing considerate text
Appropriateness of learning materials/tasks is very complex.Tagging of these materials & tasks is daunting.
Fortunately, as David Weinberger points out*,there is a huge amount of metadata out there,but this allows multiple simultaneous organizations of content.
*June 12, 2007 interview with IT Conversationshttp://www.itconversations.com/shows/detail1838.html
Weinberger booksThe Cluetrain ManifestoSmall Pieces Loosely JoinedEverything is Miscellaneous
Considerate multimedia?
Tentative definition:considerate multimodal objects are those which contain few non-essential obstacles to their comprehension.
Considerate text in the context of M3C suggeststhe notion of considerate multimedia
Considerate multimedia?
Tentative definition:considerate multimodal objects are those which contain few non-essential obstacles to their comprehension.
Considerate text in the context of M3C suggeststhe notion of considerate multimedia
Tentative definition 2:considerate multimodal objects are those which are tagged for various forms of comprehension difficulty.
Multimedia comprehensibility?
Alternative approach: create a set of parameters for multimedia comprehensibility
“Considerate multimedia” confronts vastly more complexitythan considerate text
One approach to comprehensibility:explore obstacles to comprehensibility,as has been done in readability work.
In the domain of multimodal computer-mediated communication, the question of readability translates as ease of comprehension:
Multimodal equivalent of readability
How easy is it for a humanto extract all the information contained in a multimodal media object (MMO)?
To measure the ease of extraction of all the INTENDED information contained in a MMO, we need a characterization of the difficulty of extraction:
Tentativelist of sources of information extraction difficulty, for simplicity’s sake limited here to
text objectsgraphic objects speech objectsvideo objects and combinations thereof.
Parameters of media object function
This is a tentative, exploratory framing of MMO comprehensibility,
Parameter Instance/unit
concept density exophoric references per paragraph/page/frame
metaphor density metaphors per scene/argument/minute
phoneme density phonemes per unbroken utterance* (e.g. Italian speech)
phonemes per inhalation
phonemes per word
phonemes per minute
mathematical symbol density numerals per page
numerals per sentence
formulae per sentence/paragraph
formulae per argument
noise density superfluous signals per utterance, e.g. "...in 1960, oh, sorry, I meant to say in 1960...)
readability stoppages** per sentence
asides per sentence/message
cognitive dissonances per utterance
facial expression/statement conflicts
reference transparency anchoring devices per lexia
anchoring devices per reference
channel-channel synchronicity number of channel-channel synchronicities
number of channel-channel asynchronicities
message-message agreement number of message-message agreements
number of message-message dischords
*utterance: minimal spoken, written or graphical communication unit
Para
mete
rs o
f m
ed
ia o
bje
ct
fun
cti
on Learning object tag ‘shopping list’
Concept density* in text spaceConcept density* in aural timeConcept density* in video space
*concept density = number of exophoric referencesper sentence/minute/frame
Para
mete
rs o
f m
ed
ia o
bje
ct
fun
cti
on Concept density
Metaphors per sentence.Metaphors per argument.Metaphors per minute.
Idioms per sentence.Idioms per argument.Idioms per minute.
Para
mete
rs o
f m
ed
ia o
bje
ct
fun
cti
on Metaphor density
Phonemes per unbroken utterance*.Phonemes per exhalation.Phonemes per word.Phonemes per minute.
*e.g. Italian speech.
Para
mete
rs o
f m
ed
ia o
bje
ct
fun
cti
on Phoneme density
Para
mete
rs o
f m
ed
ia o
bje
ct
fun
cti
on
Superfluous signals/utteranceReadability ‘stoppages’ per sentenceAsides per sentence/messageCognitive dissonances per utteranceFacial expression-statement conflicts
‘Noise’ density
Para
mete
rs o
f m
ed
ia o
bje
ct
fun
cti
on
Numerals per page.Numerals per sentence.Formulae per sentence/paragraph.Formulae per rhetorical move.
Symbol density
Para
mete
rs o
f m
ed
ia o
bje
ct
fun
cti
on
Imperfect audio channelImperfect text channelImperfect visual channel
Channel imperfections
Para
mete
rs o
f m
ed
ia o
bje
ct
fun
cti
on Channel imperfections
Nass and Brave, Wired for speechReeves and Nass, The media equation
Finding:humans retain more infofrom video with animperfect audio channel
Para
mete
rs o
f m
ed
ia o
bje
ct
fun
cti
on
Message-message agreementsMessage-message discords
Message-message harmony
Both involve reduced text density and spatial highlighting of text,
and suggest the question of a 'graphic thought facility' in humans.
manga knowledge structure maps
Low phoneme density Low phoneme density
Isolated conversational text chunks: X idioms per sentence.
Isolated descriptive text chunks:
0 idioms per sentence
X metaphors per utterance 0 metaphors per utterance
X idioms per utterance 0 idioms per utterance
Graphical situating: narrative/moodGraphical situating:
symbolized relations to other text chunks
manga vs. knowledge structure maps
To illustrate the use of the parameter approach, here is a comparison of two relatively similar types of media objects, manga and knowledge structure maps. Both involve reduced text density and spatial highlighting of text, and suggest the question of a 'graphic thought facility' in humans.
Once a comprehensive set of parameters of MMO comprehensibility has been developed, questions of application will arise.
How can (should?) these parameters be situated among larger semantic frameworks?
Which of these parameters are relevant to the development of machine-mediated communication?
How can they be operationalized in computable form?
Tempering: questions of significance and applicability for machine automation
Generating parameters of difficulty in media object comprehension
Work on ontology-based research writing * :reforming how scientific research is written/read.
EXPO* and the Robot Scientist
Does the ontology EXPO feed backfrom a machine interface with a body of knowledge/practiceto a solidification of human interface with that body of knowledge/practice?
Daunting: ontology-based readability
EXPO: An Ontology of Scientific Research. Ross D. King & Larisa N. Soldatovahttp://www-tsujii.is.s.u-tokyo.ac.jp/jw-tmnlpo/RossKing.pdf
Work on ontology-based research writing * :reforming how scientific research is written/read.
“Use of Natural Language is a great hindrance when using computers to store and analyse data hence the growing importance of text-mining. We argue that the content of scientific papers should increasingly be expressed in formal languages. Is writing a scientific paper closer to writing poetry or a computer program?”
Daunting: ontology-based readability
EXPO: An Ontology of Scientific Research. Ross D. King & Larisa N. Soldatovahttp://www-tsujii.is.s.u-tokyo.ac.jp/jw-tmnlpo/RossKing.pdf
Work on ontology-based research writing * :reforming how scientific research is written/read.
Can humans now experience knowledge differently, thanks to machine interface work,i.e. through a formal language imposed for the machine’s sake?
Will this reform how we read? how we think?
Daunting: ontology-based readability
EXPO: An Ontology of Scientific Research. Ross D. King & Larisa N. Soldatovahttp://www-tsujii.is.s.u-tokyo.ac.jp/jw-tmnlpo/RossKing.pdf
References[1] Elsayed, A. (2007) Machine-mediated communication: the technology. 6th IEEE International
Conference on Advanced Learning Technologies, ICALT 2006, 5-7 July 2006, Kerkrade, The Netherlands.
[2] Hunter, L. (2005) Technical hypertext accessibility: information structures and rhetorical framing. Proceedings of the sixteenth ACM conference on Hypertext and hypermedia, Salzburg, Austria.
[3] Kalyuga, S. (2006) Instructing and testing advanced learners: A cognitive approach. Nova Science Publishers.
[4] Mann, B. (1999) An introduction to rhetorical structure theory (RST).
http://www.sil.org/mannb/rst/rintro99.htm
[5] Mohan, B.A.M. (1986) Language and content. Reading, MASS: Addison-Wesley.
[6] Nass, C. and S. Brave. (2005) Wired for speech: How voice activates and advances the human-computer relationship. MIT Press.
Chun, D. M. and Plass, J. L. 1997. Research on text comprehension in multimedia environments. Language learning and technology 1(1): 60-81.
Grow, G. (1996) Serving the strategic reader: cognitive reading theoryand its implications for the teaching of writing. Viewed June 30, 2007 at http://www.longleaf.net/ggrow/StrategicReader/index.html
Goldman, S.R., & Rakestraw, J.A. (2000). Structural aspects of constructing meaning from text. In M.L. Kamil, P. B. Mosenthal, P. D. Pearson, & R. Barr (Eds.), Handbook of reading research (Vol. II, pp. 311-335). Mahwah, NJ: Erlbaum.
The Plain English movement http://www.plainenglish.co.uk/index.htm (de-idiomatizing)
References 2Research via ontologies
Ian Horrocks http://www.cs.man.ac.uk/~horrocks/
EXPO Ontology of scientific experiments http://expo.sourceforge.net/
Soldatova L.N., Clare A., Sparkes A. and King, R.D. (2006) An ontology for a Robot Scientist. Bioinformatics (Special issue ISMB) (in press).
Soldatova, LN & King, RD. (2006) An Ontology of Scientific Experiments. Journal of the Royal Society Interface (in press).
EXPO: An Ontology of Scientific Research by Ross D. King & Larisa N. Soldatova, Department of Computer Science, University of Wales, Aberystwyth.
Hunter
Hunter L. (2005) Technical Hypertext Accessibility: Information Structures and Rhetorical Framing. Presentation at HyperText 2005, Salzburg. http://www.lawriehunter.com/presns/%20HT05poster0818.htm
Text Nouveau: Visible Structure in Text Presentation. Computer Assisted Language Learning 11(4) pp. 363-379. (text nouveau)
WordbyWord http://www.core.kochi-tech.ac.jp/hunter/WordByWord/index.html (text nouveau)
Text usability for non-native readers of English. Ueta, R, Hunter, L. & Ren, X.Proceedings, Information Processing Society of Japan, Vol. 2003.7. Pp. 199-200. (phrase boundary marking)