[Dissertation] Ontology Development for Agricultural Research Knowledge Management: A Case Study for Thai Rice

TABLE OF CONTENTS i
LIST OF TABLES ii
LIST OF FIGURES v
INTRODUCTION 1
OBJECTIVES 3
LITERATURE REVIEW 4
MATERIALS AND METHODS 67
Materials 68
Methods 70
RESULTS AND DISCUSSION 101
Results 101
Discussion 188
CONCLUSION AND RECOMMENDATION 199
LITERATURE CITED 201
APPENDICES 208
Appendix A Delphi participant list 209
Appendix B Questionnaire 211
Appendix C CS WB User Manual 224
Appendix D Guidelines for plant production ontology construction 232
Appendix E Rice production and agricultural knowledge resources 242
CIRRICULUM VITAE 249
ii
LIST OF TABLES
Table Page
1 Environmental and biological factors affecting crop production
management on a field scale 34
2 AGRIS/CARIS Subject Categorization Scheme related with
plant production 38
3 Term level relationship 46
4 Concept level relationship 48
5 Rice production related factors 75
6 Rice taxonomy summary 76
7 Rice cultivar summary defined by composition, cultivation ecology
and photoperiod sensitivity 76
8 Rice cultivar summary defined by diseases resistant,
disease susceptible, pest resistant and pest susceptible properties 77
9 Weed taxonomy summary 78
10 Weed characteristic properties summary 79
11 Weed control method and chemical control substance summary 79
12 Pathogen taxonomy summary 80
13 Diseases name and pathogen name summary 80
14 Diseases control, epidemiology and ecological factor defined
by disease name summary 81
15 Agricultural substance type defined by type of pesticide, fertilizer
and plant growth substance summary 82
16 Datasheet for formalizing concept lexicalization 89
17 Datasheet for formalizing concept and hierarchical relationship 90
18 Datasheet for formalizing concept and associative relationship 90
19 Query of the competency questions define by query approach 94
20 Class concept of rice production ontology 102
21 Number of rice production ontology relationships 103
22 Number of rice production ontology concepts and terms 104
iii
LIST OF TABLES (Continued)
Table Page
23 Description of rice production ontology relationships 105
24 Jasmine rice terms and synonym 116
25 Plant production subject categories 117
26 Example of concept and relation “hasBiologicalControlAgent” 119
27 Example of biological control agent terms and synonyms 119
28 Example of concepts of relation “hasDisease” 122
29 Example of disease terms and synonyms 122
30 Example of pathogen terms and synonyms 122
31 Chemical fertilizers concept and subclass concepts 124
32 Chemical fertilizers terms and synonyms 125
33 Organic fertilizers concept and child concepts 126
34 Organic fertilizers terms and synonym 126
35 Example of concept and relation “hasPest” 132
36 Example of pest concept with type “field pest” 132
37 Example of field pest terms and synonym 132
38 Example of pest concept with type “stored product pest” 133
39 Example of stored product pest terms and synonym 133
40 Example of pest control concept and child concept 134
41 Example of pest control terms and synonym 134
42 Example of control method concept and subclass concept 135
43 Example of control method terms and synonym 135
44 Example of pesticide concepts and subclasses 136
45 Example of pesticide terms and synonym 136
46 Query result from the conventional search 137
47 Query result search by using ontology 139
48 Query results compared between conventional search
approach and ontology-based search approach 141
49 Comparison of results in the first round and second round
questionnaire 144
iv
LIST OF TABLES (Continued)
Table Page
50 Degree of agreement on each criteria defined by
number of experts 154
51 Rice production ontology concept categories 162
52 Relations and inverse relations of the equivalence relationships 170
53 Pattern and example of equivalence relationships 171
54 Relation and inverse relation of hierarchical relationships 172
55 Pattern and example of hierarchical relationships 172
56 Relation and inverse relation of associative relationships 173
57 Pattern and example of associative relationship 175