Validating RDF data:
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
[San Rafael, Californien]
Morgan & Claypool Publishers
2018
|
| Series: | Synthesis lectures on the semantic web
16 |
| Subjects: | |
| Online Access: | Inhaltsverzeichnis Klappentext |
| Physical Description: | xxiv, 304 Seiten Diagramme 24 cm |
| ISBN: | 9781681731643 1681731649 |
Staff View
MARC
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Record in the Search Index
| _version_ | 1804178724995727360 |
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| adam_text | IX
C
Preface..................................................................xv
Foreword by Phil Archer................................................xvii
Foreword by Tom Baker...................................................xix
Foreword by Dan Brickley and Libby Miller...............................xxi
Acknowledgments ......................................................xxiii
1 Introduction..............................................................1
1.1 RDF and the Web of Data ............................................1
1.2 RDF: The Good Parts.................................................1
1.3 Challenges for RDF Adoption ........................................3
1.4 Structure of the Book...............................................5
1.5 Conventions and Notation............................................6
2 The RDF Ecosystem.........................................................9
2.1 RDF History.........................................................9
2.2 RDF Data Model.....................................................10
2.3 Shared Entites and Vocabularies....................................17
2.4 Technologies Related with RDF......................................18
2.4.1 SPARQL.......................................................18
2.4.2 Inference Systems: RDF Schema and OWL........................20
2.4.3 Linked Data, JSON-LD, Microdata, and RDFa....................23
2.5 Summary ...........................................................25
j
2.6 Suggested Reading..................................................25
3 Data Quality.............................................................27
3.1 Non-RDF Schema Languages ..........................................28
3.1.1 UML..........................................................28
3.1.2 SQL and Relational Databases.................................29
3.1.3 XML.............................................................31
3.1.4 JSON............................................................37
3.1.5 CSV.............................................................39
3.2 Understanding the RDF Validation Problem..............................40
3.3 Previous RDF Validation Approaches....................................45
3.3.1 Query-based Validation ..........................................45
3.3.2 Inference-based Approaches.......................................47
3.3.3 Structural Languages ............................................48
3.4 Validation Requirements................................................48
3.4.1 General Requirements ............................................49
3.4.2 Graph-based Requirements.........................................49
3.4.3 RDF Data Model Requirements......................................50
3.4.4 Data-modeling-based Requirements.................................50
3.4.5 Expressiveness of Schema Language................................51
3.4.6 Validation Invocation Requirements ..............................52
3.4.7 Usability Requirements...........................................52
3.5 Summary................................................................52
3.6 Suggested Reading......................................................53
4 Shape Expressions.............................................................55
4.1 UseofShEx..............................................................55
4.2 First Example..........................................................56
4.3 ShEx implementations...................................................58
4.4 The Shape Expressions Language.........................................59
4.4.1 Shape Expressions Compact Syntax.................................59
4.4.2 Invoking Vilidation..............................................60
4.4.3 Structure of Shape Expressions ..................................63
4.4.4 Start Shape Expression...........................................64
4.5 Node Constraints.......................................................65
4.5.1 Node kinds ......................................................67
4.5.2 Datatypes........................................................68
4.5.3 Facets on Literals ..............................................70
4.5.4 Value Sets ......................................................73
4.6 Shapes................................................................ 78
4.6.1 Triple Constraints.............................................. 79
4.6.2 Groupings........................................................80
4.6.3 Cardinalities ...................................................80
XI
4.6.4 Choices.........................................................82
4.6.5 Nested Shapes...................................................84
4.6.6 Inverse Triple Constraints......................................85
4.6.7 Repeated Properties ............................................86
4.6.8 Permitting other Triples........................................87
4.7 References.............................................................90
4.7.1 Shape References................................................90
4.7.2 Recursion and Cyclic References.................................91
4.7.3 External Shapes.................................................92
4.7.4 Labeled Triple Expression ......................................93
4.7.5 Annotations.....................................................94
4.8 Logical Operators......................................................95
4.8.1 Conjunction.....................................................95
4.8.2 Disjunction.....................................................98
4.8.3 Negation.......................................................101
4.9 Shape Maps...........................................................105
4.9.1 Fixed Shape Maps...............................................105
4.9.2 Query Shape Maps...............................................106
4.9.3 Result Shape Maps..............................................108
4.9.4 JSON Representation............................................109
4.9.5 Chaining Validation Workflows..................................110
4.10 Semantic Actions......................................................110
4.11 SliEx and Inference...................................................Ill
4.12 Importing schemas.................................................... 113
4.13 RDF and JSON-LD Syntax................................................114
4.14 Summary............................................................. 116
j
4.15 Suggested Reading.....................................................116
5 SHACL..........................................................................119
5.1 Simple Example........................................................119
5.2 SHACL Implementations.................................................122
5.3 Basic Definitions: Shapes Graphs, Node, and Property Shapes...........124
5.4 Importing other Shapes Graphs.........................................125
5.5 Validation Report.....................................................126
5.6 Shapes................................................................129
5.6.1 Node shapes....................................................129
5.6.2 Property Shapes..................................................130
5.6.3 Constraint Components............................................131
5.6.4 Human Friendly Messages..........................................133
5.6.5 Declaring Shape Severities.......................................134
5.6.6 Deactivating Shapes..............................................135
5.7 Target Declarations....................................................137
5.7.1 Target Node......................................................137
5.7.2 Target Class.....................................................138
5.7.3 Implicit Class Target............................................139
5.7.4 Target Subjects Of...............................................140
5.7.5 Target Objects Of................................................141
5.8 Cardinality...........................................................141
5.9 Constraints on Values..................................................142
5.9.1 Datatypes........................................................142
5.9.2 Class of Values..................................................145
5.9.3 Node Kinds.......................................................146
5.9.4 Sets of Values...................................................147
5.9.5 Specific Value ..................................................148
5.10 Datatype Facets........................................................148
5.10.1 Value Ranges....................................................149
5.10.2 String-based Constraints .......................................149
5.10.3 Language-based Constraints .....................................151
5.11 Logical Constraints: and, or, not, xone................................154
5.11.1 AND.............................................................154
5.11.2 OR..............................................................157
5.11.3 Exactly One.....................................................159
5.11.4 Not.............................................................162
5.11.5 Combining Logical Operators.....................................162
5.12 Shape-based Constraints................................................164
5.12.1 Shape References and Recursion..................................166
5.12.2 Qualified Value Shapes..........................................174
5.13 Closed Shapes .........................................................177
5.14 Property Pair Constraints..............................................180
5.15 Non-validating SHACL Properties........................................182
5.16 SHACL-SPARQL...........................................................184
5.16.1 SPARQL Constraints..............................................184
Xlll
5.16.2 SPARQL-based Constraint Components..........................185
5.17 SHACL and Inference Systems........................................188
5.18 SHACL Compact Syntax...............................................190
5.19 SHACL Rules and Advanced Features..................................190
5.20 SHACL Javascript...................................................193
5.21 Summary ...........................................................194
5.22 Suggested Reading..................................................194
6 Applications............................................................195
6.1 Describing a Linked Data Portal....................................195
6.1.1 Wcblndex in ShEx.............................................197
6.1.2 Weblndex in SHACL............................................200
6.2 Describing Clinical Records—FHIR...................................204
6.2.1 FHIR as Linked Data..........................................206
6.2.2 Consistency constraints......................................206
6.2.3 FHIR/RDF Development.........................................209
6.2.4 Generic Properties...........................................210
6.3 Springer Nature SciGraph...........................................212
6.4 DBpedia Validation Use Cases ......................................213
6.4.1 Ontology-based Validation....................................213
6.4.2 RDF Mappings Validation......................................214
6.4.3 Validating Link Contributions with SHACL.....................215
6.4.4 Ontology Validation with SHACL...............................216
6.5 ShEx for ShEx......................................................219
6.6 SHACL in SHACL.....................................................225
6.7 Summary............................................................230
6.8 Suggested Reading..................................................231
7 Comparing ShEx and SHACL................................................233
7.1 Common Features....................................................233
7.2 Syntactic Differences..............................................237
7.3 Foundation: Schema vs. Constraints.................................239
7.4 Invoking Validation................................................240
7.5 Modularization and Reusability.....................................242
7.6 Shapes, Classes, and Inference.....................................244
7.7 Violation Reporting and Severities.................................246
7.8 Default Cardinalities............................................246
7.9 Property Paths...................................................247
7.10 Recursion........................................................248
7.11 Property Pair Constraints and Uniqueness.........................250
7.12 Repeated Properties..............................................251
7.13 Exactly One and Alternatives ....................................254
7.14 Treatment of Closed Shapes.......................................257
7.15 Stems and Stem Ranges............................................259
7.16 Annotations......................................................260
7.17 Semantics and Complexity.........................................261
7.18 Extension Mechanisms.............................................262
7.19 Conclusions and Outlook..........................................263
7.20 Summary .........................................................266
7.21 Suggested Reading................................................266
Weblndcx in ShEx.......................................................267
Weblndex in SHACL......................................................269
ShEx in ShEx ........................................................ 275
SHACL in SHACL.........................................................279
Bibliography...........................................................285
Authors’ Biographies...................................................295
This book describes two technologies for RDF validation: Shape Expressions (ShEx) and Shapes
Constraint Language (SHACL), the rationales for their designs, a comparison of the two, and some
example applications.
RDF and Linked Data have broad applicability across many fields, from aircraft manufacturing
to zoology. Requirements for detecting bad data differ across communities, fields, and tasks, but nearly
all involve some form of data validation. This book introduces data validation and describes its practical
use in day-to-day data exchange.
The Semantic Web offers a bold, new take on how to organize, distribute, index, and share data.
Using Web addresses (URIs) as identifiers for data elements enables the construction of distributed
databases on a global scale. Like the Web, the Semantic Web is heralded as an information revolution,
and also like the Web, it is encumbered by data quality issues. The quality of Semantic Web data is
compromised by the lack of resources for data curation, for maintenance, and for developing globally
applicable data models.
At the enterprise scale, these problems have conventional solutions. Master data management
provides an enterprise-wide vocabulary, while constraint languages capture and enforce data structures.
Filling a need long recognized by Semantic Web users, shapes languages provide models and vocabularies
for expressing such structural constraints.
|
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| id | DE-604.BV045096389 |
| illustrated | Not Illustrated |
| indexdate | 2024-07-10T08:08:31Z |
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| isbn | 9781681731643 1681731649 |
| language | English |
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| publisher | Morgan & Claypool Publishers |
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| spelling | Labra Gayo, José Emilio Verfasser aut Validating RDF data Jose Emilio Labra Gayo, Eric Prud'hommeaux, Iovka Boneva, Dimitris Kontokostas [San Rafael, Californien] Morgan & Claypool Publishers 2018 xxiv, 304 Seiten Diagramme 24 cm txt rdacontent n rdamedia nc rdacarrier Synthesis lectures on the semantic web 16 RDF Informatik (DE-588)4737512-7 gnd rswk-swf Semantic Web (DE-588)4688372-1 gnd rswk-swf Semantic Web (DE-588)4688372-1 s RDF Informatik (DE-588)4737512-7 s DE-604 Prud'hommeaux, Eric Verfasser aut Boneva, Iovka Verfasser aut Kontokostas, Dimitris 1981- Verfasser (DE-588)1157045197 aut Erscheint auch als Online-Ausgabe 978-1-68173-165-0 Erscheint auch als Online-Ausgabe, EPUB 978-1-68173-166-7 Synthesis lectures on the semantic web 16 (DE-604)BV039558341 16 Digitalisierung UB Regensburg - ADAM Catalogue Enrichment application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=030487053&sequence=000003&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis Digitalisierung UB Regensburg - ADAM Catalogue Enrichment application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=030487053&sequence=000004&line_number=0002&func_code=DB_RECORDS&service_type=MEDIA Klappentext |
| spellingShingle | Labra Gayo, José Emilio Prud'hommeaux, Eric Boneva, Iovka Kontokostas, Dimitris 1981- Validating RDF data Synthesis lectures on the semantic web RDF Informatik (DE-588)4737512-7 gnd Semantic Web (DE-588)4688372-1 gnd |
| subject_GND | (DE-588)4737512-7 (DE-588)4688372-1 |
| title | Validating RDF data |
| title_auth | Validating RDF data |
| title_exact_search | Validating RDF data |
| title_full | Validating RDF data Jose Emilio Labra Gayo, Eric Prud'hommeaux, Iovka Boneva, Dimitris Kontokostas |
| title_fullStr | Validating RDF data Jose Emilio Labra Gayo, Eric Prud'hommeaux, Iovka Boneva, Dimitris Kontokostas |
| title_full_unstemmed | Validating RDF data Jose Emilio Labra Gayo, Eric Prud'hommeaux, Iovka Boneva, Dimitris Kontokostas |
| title_short | Validating RDF data |
| title_sort | validating rdf data |
| topic | RDF Informatik (DE-588)4737512-7 gnd Semantic Web (DE-588)4688372-1 gnd |
| topic_facet | RDF Informatik Semantic Web |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=030487053&sequence=000003&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=030487053&sequence=000004&line_number=0002&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV039558341 |
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