Management of unstructured information using semantic metadata:
Gespeichert in:
| 1. Verfasser: | |
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| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
2011
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| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | LXXVI, 149 S. Ill., graph. Darst. |
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Datensatz im Suchindex
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| adam_text | Titel: Management of unstructured information using semantic metadata
Autor: Brügmann, Hinnerk
Jahr: 2011
Contents
List of Figures VII
List of Tables XI
List of Program Code Listings XIII
Nomenclature XIV
1 Introduction 1
2 Management of Unstructured Information 3
2.1 Nature of Unstructured Information............................ 3
2.2 Growth of Unstructured Information............................ 6
2.3 Problems Arising from the Nature and Growth of Unstructured Information..... 8
2.3.1 Information Overload................................ 8
2.3.2 Information Fragmentation............................. 9
2.3.3 Information Redundancy .............................. 10
2.3.4 Inability to Locate Existing Information...................... 11
2.3.5 Orphaned Information................................ 11
2.3.6 Conflicting Changes................................. 11
2.4 Need for the Management of Unstructured Information................. 12
2.5 Approaches to the Management of Unstructured Information............. 13
2.5.1 Tools for Thought................................... 13
2.5.2 Personal Information Management ........................ 14
2.5.3 Enterprise Content Management.......................... 16
2.5.4 Information Extraction................................ 17
2.5.5 Automated Relationship Detection......................... 18
2.5.6 Conclusion on Existing Approaches........................ 19
2.6 ConSense Approach using Semantic Metadata...................... 21
2.7 Research Methodology.................................... 23
3 Semantic Metadata Networks 27
3.1 Semantic Networks...................................... 27
3.2 Semantic Relations...................................... 28
3.3 Domain Ontologies...................................... 30
3.3.1 Dublin Core Ontology ................................ 32
3.3.2 Friend of a Friend Ontology............................. 32
3.3.3 ConSense Document Ontology........................... 33
3.3.4 ConSense Process Ontology............................ 34
3.3.5 ConSense Product Ontology............................ 36
3.3.6 ConSense Institute Domain Ontology....................... 36
3.3.7 ConSense Provenance Ontology.......................... 38
3.4 Heterogeneity of Semantic Metadata........................... 38
3.5 Aggregation of Semantic Metadata ............................ 40
3.6 Reliability of Semantic Metadata.............................. 42
3.7 Decay of Semantic Metadata................................ 44
3.8 Local Semantic Store..................................... 45
3.9 Central Semantic Store ................................... 46
3.10 Semantic Inference...................................... 49
4 Sources of Semantic Metadata 51
4.1 Local File System....................................... 52
4.2 Email Conversations..................................... 59
4.2.1 Same Subject..................................... 60
4.2.2 Same Sender and Recipient............................. 61
4.2.3 Cited Subsections .................................. 62
4.2.4 Same Folders..................................... 62
4.2.5 Virtual Emails..................................... 63
4.2.6 Same Attachments.................................. 64
4.2.7 Construction of Conversation Graphs....................... 65
4.3 User Desktop Activity..................................... 68
4.3.1 Activities and Actions................................ 68
4.3.2 Context of Information Usage ........................... 68
4.3.3 Window Metadata .................................. 69
4.3.4 File and Attachment Metadata........................... 70
4.3.5 Multitasking...................................... 72
4.4 External Business Entity Metadata............................. 75
4.4.1 Personal Information Management Applications................. 76
4.4.2 Central Enterprise Applications........................... 76
5 Usage of Semantic Metadata 79
5.1 Information Lifecycle Management............................. 81
5.1.1 Initialization...................................... 81
5.1.2 Creation........................................ 82
5.1.3 Distribution and Use................................. 82
5.1.4 Search and Retrieval................................. 83
5.1.5 Maintenance ..................................... 83
5.1.6 Disposition and Archiving.............................. 84
5.1.7 Deletion........................................ 84
5.2 Methodological Framework................................. 85
5.2.1 Reference Model by Card.............................. 85
5.2.2 Reference Model by Fry ............................... 86
5.2.3 Methodological Framework followed in the ConSense Approach........ 87
5.3 ConSense Context Menu................................... 90
5.4 ConSense Cockpit....................................... 93
5.4.1 Information Spaces ................................. 94
5.4.2 Faceted Browsing................................... 95
5.4.3 Ubiquitous Semantic Shell ............................. 96
5.4.4 History Tracing.................................... 98
5.4.5 Flipbook........................................ 101
5.4.6 Visualization Types.................................. 102
5.5 ConSense Controller..................................... 108
5.6 ConSense Web API...................................... Ill
6 Prototypical Implementation 113
6.1 Requirements......................................... 113
6.1.1 Functional Requirements.............................. 113
6.1.2 Nonfunctional Requirements............................ 114
6.1.3 Performance Requirements............................. 115
6.2 Implementation Concept................................... 115
6.2.1 Domain Concepts................................... 115
6.2.2 Platform Details ................................... 116
6.2.3 Software Design Principles............................. 116
6.3 System Architecture..................................... 117
6.4 Representing Semantic Relations and Ontologies.................... 118
6.5 Local Semantic Store..................................... 122
6.6 Central Semantic Store ................................... 125
6.7 Metadata Sensors ...................................... 125
6.7.1 File System Sensor.................................. 128
6.7.2 Email Conversation Thread Sensor ........................ 129
6.7.3 Activity Context Sensor............................... 130
6.8 ConSense Context Menu................................... 131
6.9 ConSense Cockpit....................................... 132
7 Evaluation 135
7.1 Qualitative Usage Scenarios................................ 136
7.1.1 Locating and Retrieving Documents........................ 136
7.1.2 Analyzing Document Lifecycles .......................... 137
7.1.3 Recognizing Responsibility Dependencies..................... 137
7.1.4 Locating Orphaned Documents .......................... 137
7.2 Empirical Evaluation..................................... 138
7.2.1 Evaluation of Scalability............................... 138
7.2.2 Evaluation of Activity Clustering.......................... 140
7.2.3 Evaluation of Resulting Semantic Metadata................... 140
7.3 Analytical Business Case Evaluation............................ 143
7.4 Summary............................................ 144
8 Conclusions and Outlook 147
Bibliography XVII
A ConSense Ontologies XXXV
B Used Software Modules and Libraries LXXI
C Details of the Empirical Evaluation LXXIII
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| spelling | Brügmann, Hinnerk Verfasser (DE-588)102105092X aut Management of unstructured information using semantic metadata vorgelegt von: Hinnerk Brügmann 2011 LXXVI, 149 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Erlangen-Nürnberg, Univ., Diss., 2011 Semantisches Netz (DE-588)4242662-5 gnd rswk-swf Informationsmanagement (DE-588)4114012-6 gnd rswk-swf Metadaten (DE-588)4410512-5 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Informationsmanagement (DE-588)4114012-6 s Semantisches Netz (DE-588)4242662-5 s Metadaten (DE-588)4410512-5 s b DE-604 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=024836535&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Brügmann, Hinnerk Management of unstructured information using semantic metadata Semantisches Netz (DE-588)4242662-5 gnd Informationsmanagement (DE-588)4114012-6 gnd Metadaten (DE-588)4410512-5 gnd |
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| title | Management of unstructured information using semantic metadata |
| title_auth | Management of unstructured information using semantic metadata |
| title_exact_search | Management of unstructured information using semantic metadata |
| title_full | Management of unstructured information using semantic metadata vorgelegt von: Hinnerk Brügmann |
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| title_short | Management of unstructured information using semantic metadata |
| title_sort | management of unstructured information using semantic metadata |
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