Alexandria Digital Earth Prototype ADEPT

1
Alexandria Digital Earth Prototype(ADEPT)
digital library services in support of learning
2
Outline

• Introduction overview
• a motivating example
• The Digital Earth metaphor
• Necessary basis the Alexandria Digital Library
• ADEPT
• geo-information services
• Iscape creation use
• architecture scalability
• learning services evaluation
• Management budget
• Review issues responses
• Deliverables

3
Who we are

• UCSB
• Alexandria Digital Library
• Davidson Library and Map Imagery Laboratory
• Computer Science, Electrical Computer
  Engineering,Geography, and Psychology
  departments
• Instructional Development
• UCLA
• University of Georgia
• CDL SDSC (NPACI partners)
• InterLib and other university partners
• Public sector (federal state government)
  andprivate sector partners

4
Summary overview

• Two phases in ADLs development
• DLI-1 access to libraries of useful collections
• DLI-2 integration use of accessible
  information
• beyond the library metaphor
• Operational ADL a necessary basis for
  information use
• Initial applications of ADEPT services
• undergraduate learning in classrooms/studies/libra
  ries
• emergency response, virtual museums stores,
  digital government
• Internet-accessible information as models of the
  world
• Digital Earth metaphor for access and
  presentation
• Iscape concept for organization and use of
  information

5
ADEPT in a learning environment

• Example a class on flood management
• Instructor prepares class material
• discovers relevant information
• constructs meta-information for joint resource
  use
• compatibility of datasets and simulation models
• integrates information into Iscapes (virtual DLs)
• Instructor students interact using Iscapes
• request simulations with different
  datasets/parameters
• Students use ADEPT in group private study
  situations
• group discovery, access, organization, use
• support of information life cycle

6
Outline

• Introduction overview
• a motivating example
• The Digital Earth metaphor
• Necessary basis the Alexandria Digital Library
• ADEPT
• geo-information services
• Iscape creation use
• architecture scalability
• learning services evaluation
• Management budget
• Review issues responses
• Deliverables

7
The Digital Earth metaphor

• Learning about the Earth
• information
• processes
• scenarios
• The organizational metaphor
• desktop, office, workbench
• Earth itself
• immersion
• dynamics

8
Digital Earth background

• The Gore speech
• exploring the Earths environments
• physical and social
• NASA
• the sunlit Earth
• immersive environment
• workshops
• Organizing information by place
• what do you have about there?
• USGS Gateway to the Earth
• NRC Distributed Geolibraries

9
(No Transcript)
10
(No Transcript)
11
(No Transcript)
12
(No Transcript)
13
ADEPT and simulation

• Understanding Earth processes
• social and physical
• ADL data are static
• boundary conditions for simulation
• exploration of dynamic scenarios
• GIS technology is static
• links to the Utrecht group, Peter Burrough
• two short demonstrations
• diffusion
• tectonic

14
Three probabilities for dispersion

• Probability of individual reaching a given
  distance from the parent
• Probability that habitat permits individual to
  establish
• Probability that individual produces new offspring

15
Simple dispersion functions
Probability of establishment
16
Example of diffusion modeling

• Dispersion of individuals over a space in which
  the resistance to movement is variable
• individuals need to work together to colonize new
  areas

diffusion
17
Modeling uplift in Sabah, Malaysia (1/3)
18
Modeling uplift in Sabah, Malaysia (2/3)

• Over a period of several million years, movement
  along the faults has created long,
  sediment-filled valleys

Sediment
19
Modeling uplift in Sabah, Malaysia (3/3)

• The demo illustrates
• a simplified model of normal faults and landform
  before uplift
• reaction of landform to gradual vertical
  displacement along the parallel normal faults
• erosion and deposition as a result of vertical
  movements (red is erosion, blue is deposition)
• emergent behaviour of rivers leading to
  development of braided streams

tectonics
20
Outline

• Introduction overview
• a motivating example
• The Digital Earth metaphor
• Necessary basis the Alexandria Digital Library
• ADEPT
• geo-information services
• Iscape creation use
• architecture scalability
• learning services evaluation
• Management budget
• Review issues responses
• Deliverables

21
ADL overview

• Operational digital library
• located within UCSBs Map and Imagery Laboratory
• staff of digital librarians and systems
  personnel
• three-tier architecture
• Java client
• Java middleware
• heterogeneous databases
• under continuous development
• separately funded
• interfaces, workspaces, collections, catalogs,
  gazetteers
• planned incorporation into CDL
• Research testbed
• advanced interface, geospatial processing
  database services

22
ADL user interface
23
ADL architecture
24
ADL new and ongoing activities

• CDL
• NPACI
• D-Lib Test Suite
• GeoWorlds
• NASA/ESDIS Prototyping Program
• University of Aberdeen, Scotland
• Digital Gazetteer Information Exchange (DGIE)
• Nanyang Technological University, Singapore
• Neural network analysis of user/use data
• Utrecht University GIS group
• New interactions being developed

25
Outline

• Introduction overview
• a motivating example
• The Digital Earth metaphor
• Necessary basis the Alexandria Digital Library
• ADEPT
• geo-information services
• Iscape creation use
• architecture scalability
• learning services evaluation
• Management budget
• Review issues responses
• Deliverables

26
ADEPT services
Iscape construction
collection building
discovery
search
geo-information
collaborative interaction
information use and procedure application
27
ADEPT geo-information services (1/2)

• Symbolic textual information
• gazetteer (named places ? geographic coordinates)
• mappings between representations
• reasoning about relations between representations
• geo-ontology (vocabularies)
• domain-specific (e.g., geospatial)
• domain-independent (e.g., syntax)
• thesaurus (hierarchical vocabularies synonyms)
• geographic terms and feature types
• visual synonyms (e.g., texture and color)

28
ADEPT geo-information services (2/2)

• Visual information
• indexing the surface of the Earth
• smooth zoom from 10km to 1m
• integration and conflation
• merge, overlay, analyze multiple datasets
• datum and projection
• everything referenced to curved (not flat) Earth
  surface
• level-of-detail
• varies with focus and resolution of field-of-view
• Integration of symbolic, textual visual
  information

29
ADEPT Iscapes
Visualization of Iscapes and resources
Information landscapes (Iscapes)
Distributed meta-information resources
Distributed information resources
30
ADEPT Iscapes construction use (1/4)

• Distributed, heterogeneous information resources

3.14159 2.71828
3.14159 2.71828
3.14159 2.71828
31
ADEPT Iscapes construction use (2/4)

• Discovery of relevant information

3.14159 2.71828
3.14159 2.71828
search collect
3.14159 2.71828
32
ADEPT Iscapes construction use (3/4)

• Extraction of meta-information enabling joint use

3.14159 2.71828
3.14159 2.71828
extract organize
3.14159 2.71828
33
ADEPT Iscapes construction use (4/4)

• Visualization use of information in Iscapes

3.14159 2.71828
visualize use
3.14159 2.71828
34
ADEPT Iscapes creation

• Extraction of metadata from multi-modal
  information
• segmentation and classification methods for
  search and retrieval
• Models for describing heterogeneous repositories
• semantic interoperability
• procedures
• Resource discovery using a multi-level approach
• classification-based, multi-modal data
• Distributed collaboration for building Iscapes
• process coordination
• cooperative workspaces

35
ADEPT Iscapes use

• Dynamic generation of query plans
• supporting meta-information schema evolution
• Incremental query support
• non-traditional data types and investigating
  Iscape consistency
• Supporting flexible method application
• geographically distributed servers
• framework for transparent distributed access to
  objects
• Visualizing Iscapes using the Digital Earth
  metaphor
• supporting collaborative interactions

36
ADEPT architecture
37
ADEPT scalability

• Active Disks scalable architecture for large
  datasets
• processor and memory integrated into disk unit
• Coordinated server clusters
• strategies to minimize response time and maximize
  reliability
• Market mechanisms
• controlling scheduling and load balancing with
  market-place model
• Efficient access and index structures
• scalable techniques for improved spatial, image
  and text indexing
• Archiving and preservation
• symmetric multi-level storage caching in
  heterogeneous systems
• Secure areas of computation
• smart-card authentication to control user access
  and privileges

38
ADEPT application to learning

• Initial application evaluation of ADEPT
• undergraduate settings
• integrated with instructional development in
  science humanities classrooms at UCSB UCLA
• extension to other environments (e.g., K12)
• Investigate
• mental models (longitudinal studies)
• changes in users mental models of the system
• do successful users develop different mental
  models from unsuccessful users?
• performance with different interfaces
  (instructional studies)
• effect of the Digital Earth metaphor on users
  mental models?
• outcomes in entire, real classrooms

39
ADEPT evaluation approach

• Assess
• before/after mental models
• students will be asked to, e.g.
• solve benchmark problem tasks
• predict results of sequence of user commands
• student perceptions of how system functions
• Identify
• common misconceptions of the system
• systemic changes in users mental models while
  using ADEPT
• design principles for improving interface
  metaphors
• ADEPT features that do/do not work in real
  classrooms

40
Outline

• Introduction overview
• a motivating example
• The Digital Earth metaphor
• Necessary basis the Alexandria Digital Library
• ADEPT
• geo-information services
• Iscape creation use
• architecture scalability
• learning services evaluation
• Management budget
• Review issues responses
• Deliverables

41
Project organization
42
Research plan (1/2)
43
Research plan (2/2)

• Iterative development
• sequence of prototypes
• iterative incorporation of learning evaluation
  results
• First year activity
• initial prototype within 9 months
• DL interface to Utrecht models
• incorporation into UCSB Geography courses
• virtual field course
• designing for courses in other departments

44
InterLib research foci
45
Budget reduction scenarios

• 10
• option 1 reduce activity in 5th year
• option 2 scale back all aspects of project
• 20
• option 1 delete 5th year reschedule goals
• option 2 curtail InterLib technology transfer
  component reduce activity of
  university partners scale back
  various aspects of project
• 40
• reduce/eliminate major dimensions of the project
• original project goals will be impossible to
  achieve

46
Outline

• Introduction overview
• a motivating example
• The Digital Earth metaphor
• Necessary basis the Alexandria Digital Library
• ADEPT
• geo-information services
• Iscape creation use
• architecture scalability
• learning services evaluation
• Management budget
• Review issues responses
• Deliverables

47
Review issues responses (1/2)

• Project goal issues
• overly ambitious?
• ADL was ambitious, but achieved more than
  proposed
• Iscapes too complex?
• University of Georgia has developed basis
• undergraduate education only?
• extension to K12 (SUNDIAL)
• Conceptual issues
• Digital Earth metaphor?
• explained above
• clienteles geographic ignorance?
• this is a continuing research area
• separability from InterLib?
• ADEPT is standalone, but stronger with InterLib

48
Review issues responses (2/2)

• Team and experience issues
• GIS processing experience?
• NCGIA, DLI-1, Dutch GIS group
• archival experience?
• SDSC, UCLA
• interactions with Microsoft?
• past successful partnership
• System issues
• collection building?
• underway in DLI-1 will extend
• single system?
• set of integrable tools
• construction strategy?
• iterative development, as in DLI-1

49
Deliverables

• Research results
• papers presentations
• research testbed
• available to other researchers as well
• Sequence of prototype systems
• tools for discovery, access, organization,
  visualization, use
• integrated, running systems at UCSB, UCLA, CDL,
  SDSC,
• application evaluation in classroom settings
• extensive collections
• Software
• available for distribution (as is ADL under
  DLI-1)
• Educational infrastructure