exploring digital libraries: integrating browsing, searching, and visualization
DESCRIPTION
Exploring Digital Libraries: Integrating Browsing, Searching, and Visualization. Paper by: Rao Shen, Naga Srinivas Vemuri, Weiguo Fan, Ricardo da S. Torres, Edward A. Fox. Slides by [email protected] http://fox.cs.vt.edu with some modifications by [email protected] - PowerPoint PPT PresentationTRANSCRIPT
Exploring Digital Libraries: Integrating Browsing, Searching, and
Visualization
Paper by: Rao Shen, Naga Srinivas Vemuri, Weiguo Fan, Ricardo da S. Torres, Edward A. Fox
Slides by [email protected] http://fox.cs.vt.edu with some modifications by [email protected]
Original version presented at JCDL 2006
Acknowledgements (Selected)
• Sponsors: NSF grant ITR-0325579, ASOR, CWRU, ETANA, Vanderbilt U., Virginia Tech
• Faculty/Staff: Lillian Cassel, Debra Dudley, Manuel Perez, …
• VT (Former) Students: Marcos A. Gonçalves, Doug Gorton, Aaron Krowne, Ming Luo, …
Introduction What’s exploring?
searching, browsing, investigating, studying, or analyzing for purposes of discovery, pursuing truth or facts about something
Are browsing and searching duals or can they be converted to each other when certain conditions are met?
Can we generalize these DL exploring services within a formal DL framework?
Can the formal generalization guide development of exploring services for domain focused DLs?
Related Work on Integrating Services in DLs
has an example
I3R
systemsIn 1980s
found in
RABBIT
integrating searching and browsing
systemsIn 1990s
systemsIn 2000s
CODER
DataWeb
has an example
PESTO SenseMaker
has an example
MIX ScentTrailsBBQ
ODLMARIAN
integrating searching and browsing with other services
clustering and visualization
has examples
Stepping Stones& Pathways
CitiViz
includes
Cat-a-Cone
WebBook Hieraxes
RB++ Grouper
EtanaViz…
Kartoo Flamenco
Generalize DL exploring services such as browsing, searching, clustering, and visualization
Exploration Space (Espa) is a Space
Espa=(Q, Contents, OP_Set)Q is a set of conceptual representations for user information needs
Contents: associated with collection C
OP_Set is a set of operations on Q and Contents• {OPviz, OPclu, OPs, OPb} OP_Set
Exploring Services Formalization
⊆
Sample OP_Set: {OPviz , OPclu, OPs, OPb}
OPviz: maps a set of digital objects to a visual mark
OPclu: gets similarity of a pair of subsets of collection and their associated contents
– OPs: associates a query with a digital object and its contents
– OPb: associates a traverse link with contents of the target node (i.e., follows a hypertext link)
Exploring Services Formalization (Cont.)
An Exploring Service (Eser) is a set of scenarios over an exploration space (Espa).
Eser=(sc1, sc2, …, sci, …, scn),
where sci is a sequence of eventseach event is associated with one or more of the operations in Espa
Exploring Services Formalization (Cont.)
…
…
ei
OP_Set
Searching: Ops
Browsing: Opb
Clustering: Opclu
Visualization: Opviz
…
State Diagram
Exploring Services Formalization (Cont.)
Reading the paper
Overview first
• What is this paper about?
• What is the main point or are the main points?
• What is the structure of the paper?– Is this what you would expect to see in any
well-organized conference paper?– Are there sections that are specific to this
project?
Related work
• What is the oldest work cited?• What is the most recent work cited?• How large a body of work contributed to this
project?• How closely related are the works that this paper
cites?• Is there a good reason for each reference?• How many of the cited works are by the same
author (or some of the same authors) or from the same research laboratory?
Definitions and notations
• What specific terms are defined?– Are these general terms that have particular
meanings in this paper or are they new terms with no known meaning?
– Are there general terms defined, or notations that provide shorthand for use in the later discussions?
– List the terms. Discuss the meaning of each with a classmate. Is anything unclear? Try to answer each other’s questions or formulate a question for the class to address together.
– Note: the reference #10 is one we read earlier in the semester.
• Definition 2: A structure is a tuple (G,L, F), where G=(V,E) is a directed graph with vertex set V and edge set E, L is a set of label values, and F is a labeling function F: (V E) L
• Definition 16: A digital object is a tuple do = (h, SM, ST, Structured-Streams) where– h H, where H is a set of universally unique handles (labels)– SM = {sm1, sm2, …, smn} is a set of streams– ST = {st1, st2, …, stm} is a set of structural metadata
specifications;– StructuredStreams={stsm1, stsm2, …, stsmp} is a set of
StructuredStream functions defined from the streams in the SM set (the second component) of the digital object and from the structures in the ST set (the third component.)
The operations
• Exactly what operations are defined and are of interest in this paper?
• What relationships exist between and among the operations defined?
New understanding
• The paper states: Our theory-based approach to describing DL exploring services allows us to understand browsing and searching in a new way.
• What are all the exploring services discussed in the paper?
• How are these explored in the context of the ETANA-DL (which we initially looked at early in the semester).
The Author’s presentation
• The paper as presented by the author
• Slides provided by Dr. Edward A. Fox
Exploring Digital Libraries: Integrating Browsing, Searching, and Visualization
Excerpt fromJCDL 2006, Chapel Hill, NC, June 12, 2006
Rao Shen, Naga Srinivas Vemuri, Weiguo Fan, Ricardo da S. Torres, and Edward A. Fox
[email protected] http://fox.cs.vt.edu
Some adaptations by [email protected]
For CSC 9010-Special Topics - Digital Libraries and other Web-based information presentation
Acknowledgements (Selected)
• Sponsors: NSF grant ITR-0325579, ASOR, CWRU, ETANA, Vanderbilt U., Virginia Tech
• Faculty/Staff: Lillian Cassel, Debra Dudley, Manuel Perez, …
• VT (Former) Students: Marcos A. Gonçalves, Doug Gorton, Aaron Krowne, Ming Luo, …
Introduction What’s exploring?
searching, browsing, investigating, studying, or analyzing for purposes of discovery, pursuing truth or facts about something
Are browsing and searching duals or can they be converted to each other when certain conditions are met?
Can we generalize these DL exploring services within a formal DL framework?
Can the formal generalization guide development of exploring services for domain focused DLs?
Related Work on Integrating Services in DLs
has an example
I3R
systemsIn 1980s
found in
RABBIT
integrating searching and browsing
systemsIn 1990s
systemsIn 2000s
CODER
DataWeb
has an example
PESTO SenseMaker
has an example
MIX ScentTrailsBBQ
ODLMARIAN
integrating searching and browsing with other services
clustering and visualization
has examples
Stepping Stones& Pathways
CitiViz
includes
Cat-a-Cone
WebBook Hieraxes
RB++ Grouper
EtanaViz…
Kartoo Flamenco
Generalize DL exploring services such as browsing, searching, clustering, and visualization
Exploration Space (Espa) is a Space
Espa=(Q, Contents, OP_Set)Q is a set of conceptual representations for user information needs
Contents: associated with collection C
OP_Set is a set of operations on Q and Contents• {OPviz, OPclu, OPs, OPb} OP_Set
Exploring Services Formalization
⊆
Sample OP_Set: {OPviz , OPclu, OPs, OPb}
OPviz: maps a set of digital objects to a visual mark
OPclu: gets similarity of a pair of subsets of collection and their associated contents
– OPs: associates a query with a digital object and its contents
– OPb: associates a traverse link with contents of the target node (i.e., follows a hypertext link)
Exploring Services Formalization (Cont.)
An Exploring Service (Eser) is a set of scenarios over an exploration space (Espa).
Eser=(sc1, sc2, …, sci, …, scn),
where sci is a sequence of eventseach event is associated with one or more of the operations in Espa
Exploring Services Formalization (Cont.)
…
…
ei
OP_Set
Searching: Ops
Browsing: Opb
Clustering: Opclu
Visualization: Opviz
…
State Diagram
Exploring Services Formalization (Cont.)
Theory-based approach to describing DL Exploring Services
— guides us to design and implement exploring services for ETANA-DL
• Multi-dimensional browsing• Searching and browsing integration• Visualization• Usability evaluation
An Integrated DL
• Etana brings together several separate and different collections of materials into an integrated DL.– Virtual Nimrin (http://www.case.edu/affil/nimrin/menu/nimrin.htm)
– Madaba Plains (http://www.madabaplains.org/home.html)
– Lahav Website (http://www.cobb.msstate.edu/dig/lahav/)
– Megiddo (http://www.tau.ac.il/humanities/archaeology/megiddo/index.html)
– And others
ETANA-DL approach
• Applying and extending Digital Library (DL) techniques to solve key problems: making primary data available, data preservation, and interoperability
• Modeling archaeological information systems using 5S to better understand the domain and design the system and the supporting services
• Rapidly prototyping DLs that handle heterogeneous archaeological data using componentized frameworks:– eliciting requirements– refining metamodel and union schema– modeling sites– mapping– harvesting– providing useful services
ETANA-DL ArchitectureDigBase and DigKit
Lahav
Nimrin
Umayri
Hisban
Megiddo
Jalul
New Sites
DATABASE
WRAPPERS
ETANA-DLUNION
CATALOG
SearchUSER
INTERFACE
Browse
Recommend
Note
Personalize
Review
Visualizations
ArchaeologySpecific
Work in progress
…
ETANA-DL Website
http://digbase.etana.org:8080/etana/servlet/Start
View Records
Exploring Service in ETANA-DL—Multi-dimensional Browsing
Tomb # 056 in Area A of Bab edh-Dhra
Tomb #056 in Area A of Bab edh-Dhra, Time Period: EARLY BRONZE III
View Records
Tomb #056 in Area A of Bab edh-Dhra, Time Period: EARLY BRONZE III
Save navigation path
Go to saved navigation paths
View Records
Searching and Browsing Integration
Search Saucer Records within
the Context
12 saucer records in tomb #056 in area A of Bab edh-Dhra'
retrieve 88 equus records through basic search
organize searching results
Organize searching results into 3 dimensions
The Important Point
• These are independent digital libraries or databases
• The idea is to give an appearance of a single, integrated site with access to all the information in all the sources.
• Harvesting -- OAI- PMH
• Then how to make it all appear like one collection of materials?
DL Integration
• What is “DL Integration”– Hide distribution– Hide heterogeneity– Enable autonomy of individual component
• Why Integration– island-DLs– inability to seamlessly and transparently
access knowledge across DLs
Use various autonomous DLs in concert
3 new sites
2 new types of artifacts
EtanaViz: Initial Interface
Query: bone records from Nimrin
EtanaViz: Bone records from Nimrin
EtanaViz: Total Number of Animal Bones
across Nimrin Culture Phrases
EtanaViz: Percentages of Animal Bones
across Nimrin Culture Phrases
Browse Search EtanaViz
Save navigation
path(SNP)
Search within browsingcontext (SWBC)
4.0 4.0 4.0 4.5 4.5
Impression about ETANA-DL services