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Tables of Contents for Information Brokering Across Heterogeneous Digital Data
Chapter/Section Title
Page #
Page Count
List of Figures
xi
List of Tables
xiii
Preface
xv
Acknowledgments
xvii
Foreword
xix
Michael Huhns
Introduction
1
16
Information Overload
2
4
Heterogeneity
3
1
Globalization
4
2
Information Brokering: Handling the Information Overload
6
9
Information Brokering: Stakeholder and Beneficiaries
7
1
Levels of Information Brokering
8
5
The Role of Facilitators on the GII
13
1
Information Brokering: Relation to other Approaches
14
1
Book Organization
15
2
Metadata and Ontologies
17
12
Perspectives on Metadata Management
18
4
The Application Scenarios Perspective
18
1
The Information Content Perspective
19
3
Language and Vocabulary Issues for Metadata Construction
22
6
Language for Metadata Representation
22
1
Vocabulary for Metadata Expressions
23
1
Constructing Intensional Metadata Descriptions
24
1
Design and Use of Ontologies
25
3
Summary
28
1
Metadata-Based Architectures
29
22
An (abstract) Metadata-based Architecture
29
9
The Vocabulary Brokering Component
31
2
The Metadata Brokering Component
33
5
Properties of Information Brokering Architectures
38
5
Issues of Scalability
39
2
Issues of Extensibility
41
1
Issues of Adaptability
42
1
Architectural Evolution and Properties
43
7
Federated Multidatabase Systems
43
3
Mediator-based Systems
46
2
Agent--based Brokering Systems
48
2
Summary
50
1
Metadata--based Brokering for Digital Data
51
38
A Multimedia Information Request
51
3
The InfoHarness System
54
9
Metadata--based Encapsulation and Brokering
54
3
The InfoHarness System Architecture
57
6
Issues of Metadata and Architecture in the MIDAS System
63
12
Role of Metadata in MIDAS
64
2
The MIDAS System Architecture
66
6
Properties of the MIDAS System Architecture
72
3
The InfoSleuth Text Agent
75
5
Metadata--based View of the Information Space
75
1
Mapping Domain Specific Metadata to Textual Data
76
2
Translating Queries into Topic Expressions
78
2
Metadata--based Correlation in the MIDAS system
80
6
Scalability v/s Extensibility: Space/Time Trade-Offs
80
3
Scalability: The Stepping Stone to Adaptability
83
3
Summary: Metadata as Schema for Digital Data
86
3
Capturing Information Content in Structured Data
89
40
Schematic Heterogeneities across Multiple Databases
90
12
Domain Definition Incompatibility
91
3
Entity Definition Incompatibility
94
3
Data Value Incompatibility
97
1
Abstraction Level Incompatibility
98
2
Schematic Discrepancies
100
2
Capturing the Information Content of Database Objects
102
21
Semantic Proximity: Capturing Information Content
103
5
C-Contexts: A Partial Representation
108
8
Association of Mappings with Contexts: An Algebra
116
4
Advantages of Context Representation
120
3
Summary
123
6
The Infosleuth System
129
8
The InfoSleuth Agent--based Architecture
130
2
Metadata Brokering in InfoSleuth
132
3
InfoSleuth: A Summary
135
2
Vocabulary Brokering in the Observer System
137
44
Architecture of Observer
138
10
Architecture of the Metadata System
139
4
The Inter--Ontologies Relationships Manager (IRM)
143
3
Properties of the Observer Architecture
146
2
Vocabulary Brokering by the Query Processor
148
19
Semantics Preserving Vocabulary Brokering
149
8
Vocabulary Brokering with Loss of Information
157
10
OBSERVER: A Summary
167
14
An Illustrative Example
181
8
Ontologies and Construction of Metadata
181
2
Vocabulary Brokering
183
1
Metadata Brokering
184
3
Summary
187
2
Related Work
189
20
The SIMS Project
189
2
The TSIMMIS Project
191
2
The Information Manifold Project
193
1
The KMed Project
194
2
The Conceptual Indexing/Retrieval Project
196
1
HERMES: A Heterogeneous Reasoning and Mediator System
197
2
InfoScopes: Multimedia Information Systems
199
2
The Context Interchange Network Project
201
2
A Comparison of Brokering Systems
203
5
Level of Information Brokering
203
1
Metadata: Types, Languages and Computation
204
2
Architectural Properties
206
2
Summary
208
1
Conclusion
209
4
References
213
8
Index
221