flex Expert System Toolkit - LPIS

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Appendix C - KSL Keyword Glossary 210 forget frame from function greater group KSL Context Formula Description Removes assertions from either the positive (facts) or negative (exceptions) database. Used with that Example forget that danger_level( anything ) KSL Context Description Sentence Declares a new frame, its position in the frame hierarchy, any default values and any inheritance links. Example frame feline is a mammal ; default tail is { long and furry } ; inherit meal from carnivore . see inherit, remove or change / changes. KSL Context Sentence Description Define an evaluable function. Used with = Example function factorial(N) = if N>0 then N*factorial(N-1) else 1 . KSL Context Formula Description Checks that the 1 st object is greater than the 2 nd . Used with than Example if jugA`s contents are greater than 0 then ... KSL Context Description Example Sentence Defines the membership of a group. group fish salmon, cod, mullet, tuna, plaice . <strong>flex</strong> toolkit
Appendix C - KSL Keyword Glossary 211 if KSL Context Description Example Sentence Used with rules and clauses to discriminate between the conditions and the directives or conclusion. rule prescribe_lomotil if complains_of( patient, diarrhoea ) and ... then ... KSL Context Object Description The start of the test within an IF-THEN-ELSE construct. If the test succeeds the 1 st object is chosen, otherwise the 2 nd object is chosen. Used with then, else Example the result is if parameter > 0 then 1 else 0 in see include. include include / includes KSL Context Formula Description A directive for extending the current value of a set with some new objects. Used with in Example if ... then include lemon_sole in the entree of meal KSL Context Description Example Formula Tests whether a set includes some objects. if the staff includes a secretary then ... included KSL Context Formula Description Tests whether a set includes some objects. Used with in Example if a surprise is included in the contents of the box then ... inherit <strong>flex</strong> toolkit KSL Context Sentence Description Declares inheritance links for attributes of frames. Used with from Example frame feline is a mammal ; inherit meal from carnivore .
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flex Reference By Dave Westwood
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The contents of this manual describ
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Contents 4 Contents Contents 4 1. I
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Contents 6 KSL Sentences 81 Frames
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Contents 8 Variant 196 Set 197 Gene
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1. Introduction 10 Forward Chaining
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2. Frames and Inheritance 12 2. Fra
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2. Frames and Inheritance 14 Defaul
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2. Frames and Inheritance 16 flex t
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2. Frames and Inheritance 18 define
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2. Frames and Inheritance 20 employ
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2. Frames and Inheritance 22 Inheri
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2. Frames and Inheritance 24 Depth-
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2. Frames and Inheritance 26 Univer
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2. Frames and Inheritance 28 The fl
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3. Forward Chaining 30 the axioms a
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3. Forward Chaining 32 flex toolkit
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3. Forward Chaining 34 A Simple Mod
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3. Forward Chaining 36 The basic cy
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3. Forward Chaining 38 First Come F
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3. Forward Chaining 40 considered.
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4. Data-Driven Programming 42 data-
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4. Data-Driven Programming 44 Const
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4. Data-Driven Programming 46 • c
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4. Data-Driven Programming 48 conte
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5. Questions And Answers 50 Rather
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5. Questions And Answers 52 Customi
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5. Questions And Answers 54 answer
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6. Anatomy of a flex Program 56 ?-
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6. Anatomy of a flex Program 58 fle
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6. Anatomy of a flex Program 60 and
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7. Knowledge Specification Language
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8. Run-Time Interpretation of KSL 1
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9. Flex Predicates 120 9. flex Tool
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9. Flex Predicates 122 ask( +Name )
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9. Flex Predicates 124 flex toolkit
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9. Flex Predicates 126 every_instan
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9. Flex Predicates 128 forward_chai
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9. Flex Predicates 130 Examples fle
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9. Flex Predicates 132 are : Search
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9. Flex Predicates 134 isa_demon( ?
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9. Flex Predicates 136 Example ?- i
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9. Flex Predicates 142 new_group( +
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9. Flex Predicates 144 one of the f
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9. Flex Predicates 146 new_synonym(
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9. Flex Predicates 148 the agenda.
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9. Flex Predicates 150 Examples rem
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9. Flex Predicates 152 remove_quest
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9. Flex Predicates 154 spied_chain
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9. Flex Predicates 156 If the exist
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11. Example - Robbie Goes Shopping
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Page 168 and 169: Appendix A - Examples 166 Appendix
Page 170 and 171: tail Appendix A - Examples 168 herb
Page 172 and 173: Appendix A - Examples 170 Represent
Page 174 and 175: Appendix A - Examples 172 The Ident
Page 176 and 177: Appendix A - Examples 174 Example 2
Page 178 and 179: Appendix A - Examples 176 The Rules
Page 180 and 181: Appendix A - Examples 178 group sta
Page 182 and 183: Appendix B - Formal Definition of K
Page 204 and 205: Appendix C - KSL Keyword Glossary 2
Page 228 and 229: Appendix D - Dealing with Uncertain
Page 234 and 235: Index 232 — GENERAL INDEX — —
Page 236 and 237: Index 234 cycle, 111 cycle/3, 106 c
Page 238 and 239: Index 236 attribute of, 51 child, 7
Page 240 and 241: Index 238 isa_exception/1, 117 isa_
Page 242 and 243: Index 240 Ordering, 58, 59, 88, 105
Page 244 and 245: Index 242 create, 128 disabling of,
Page 246 and 247: Index 244 Updating agenda, 29, 74 U
Page 248 and 249: Index 246 false, 180, 193 first, 72
Page 250 and 251: Index 248 —flex PREDICATES INDEX
Page 252 and 253: Index 250 run_data/0, 137 run_data/
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flex Expert System Toolkit - LPIS

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