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More About This Textbook
Overview
The author, an internationally cited expert in the knowledge grid field, explores these topics: A general methodology of the RSM - the origin, fundamental concepts, characteristics and the development method, The relationship between the RSM and the Semantic Link Network, which forms a richer semantic data model to support advanced distributed applications, The completeness and necessity theory for query operations of the RSM, The algebra and calculus theory for query operations of the RSM, The complexity of searching the resource space, The physical storage mechanism of the resource space, The P2P-based decentralized resource space, The probabilistic RSM, which enables users or applications to deal with uncertainty when storing and retrieving resources. The Web Resource Space Model represents a major contribution to the field of knowledge grid, offering a highly efficient model for managing e-resources. It is essential reading for researchers of the web, semantic web, and decentralized data engineering.
Product Details
Table of Contents
Preface xi
Resource Space Model Methodology 1
Origin of the Resource Space Model 1
Basis of the Resource Space Model 7
Definitions and Characteristics 7
Resource Space Definition Language 12
Resource Space Manipulation Operations 13
Resource Space Modification 15
View Definition 16
Query Language 17
Visualized Resource Locating 18
Application Scenarios of the Resource Space Model 20
Management of Web Pages 20
Managing Multi-layer Tables 21
Management of Photos 23
Geographical Resource Space 25
Multi-dimensional ACM Computing Classification System 26
Management of Bio-information 27
Media Content Space 28
Automatically Add New Resources to the Resource Space 28
Design Method 31
Resource Analysis 31
Top-down Resource Partition 32
From Low Dimension to High Dimension 33
Abstraction and Analogy in Designing Resource Space 37
Use Resource Space to Manage RelationalTables 39
The Semantic Link Network 41
Comparison between RSM and RDBM 45
Questions and Answers 48
Summary 50
A Semantic Overlay Integrating Normalization with Autonomy 53
The Basic Idea 53
Integrating Resource Space Model with Semantic Link Network 56
Relationship between RSM and SLN 60
Transformation from Semantic Link Network to Resource Space Model 60
Transformation from Resource Space to Semantic Link Network and Correlations 63
Topological Properties 65
Union View of Resource Space and Semantic Link Network 68
The Framework 68
The Core Component of Union View: Resource Class Hierarchy 71
Operations on Resource Class Hierarchy 74
Operations on the Union View of Resource Space and Semantic Link Network 77
Discussion and Summary 79
Expressiveness of Query Languages for Resource Space Model 83
The Problem 83
Completeness of Query Languages on Resource Spaces 84
Basic Idea 84
Definition of Completeness of Query Operations 85
Complete set of Operations 86
Design of Query Operations 87
Verification of Completeness of Operations 89
Expressiveness of Query Languages 92
Comparison between Expressiveness 92
Some Characteristics of Expressiveness 94
Comparison and Analysis 94
Summary 97
Algebra and Calculus of the Resource Space Model 99
Basic Idea 99
Resource Space Algebra 100
Definitions of Operations 100
Relationships among Operations 105
Resource Space Calculus 107
Definition 107
From Resource Space Algebra to Resource Space Calculus 110
From Resource Space Calculus to Resource Space Algebra 111
Transformation from Relational Model to Resource Space 115
Summary 116
Searching Complexity of Resource Space Model 117
Basic Concepts and Formulas 117
On Computation Complexity 117
Searching Complexity and Formulas 120
Basic Assumptions 121
Distribution of Coordinates on Axes 123
Best Distribution of Coordinates 123
The Worst Distribution of Coordinates 125
The Changing of Space Dimension 129
Relationship between Dimension and Searching Complexity 129
Value of Critical Dimension 131
Summary 132
Resource Space Model Storage 135
Current Approaches to Storing Resource Space 135
Problem Definition 137
System Architecture 138
RSM Storage Mechanism 140
RSM Schema Tree 141
C-tree 148
Resource Operations 148
Minimum Bounding Rectangle 152
On INSERT_POLICY 154
On SPLIT_POLICY 155
Disk management 156
Summary 157
Structured Peer-to-Peer Resource Space 159
Basic Idea 159
The Problem 159
A Brief Introduction to CAN 160
Basic Approach 161
The System Design 162
The Basis 162
Node State 163
Routing 164
Node Join 167
Node Departure 170
Improvement 171
Routing Performance 172
Node Failure Recovery 174
Coordinates in Tree Structure 175
Summary 178
Unstructured Peer-to-Peer Resource Space 179
Unstructured Peer-to-Peer 179
Incorporating Resource Space with Unstructured Peer-to-Peer 180
Peer-to-Peer in e-Science 180
Integrating Resource Space with Gossip 182
The Construction Mechanism 184
Resource Index Issuing Process 186
Peer Join Process 186
Peer Departure Process 188
Query Processing Process 189
Performance Analysis 190
Reliability 190
Hop Count Expectation 191
Experimental Evaluation 192
Experiments in Random Networks 192
Experiments in Random Power-law Networks 193
Architecture of a RSM-based Gossip Network 200
Summary 201
Probabilistic Resource Space Model 203
Basic Concepts 203
Normal Forms of Probabilistic Resource Space 206
The First Normal Form and Second Normal Form 206
The Third Normal Form 207
Operations of Probabilistic Resource Space 209
Point Query 209
Resource Query 210
Resource Modification 211
Operations on Probabilistic Resource Space 213
Integrity Constraints under Probability 214
Key in Probabilistic Resource Space Model 214
Integrity Constraints in Probabilistic Resource Space Model 216
Relevant Works 219
Summary 220
References 221
Index 231