Text Generation

Front Cover
Cambridge University Press, Jun 26, 1992 - Computers - 246 pages
1 Review
This book is concerned with the machine-based generation of natural language text and presents a formal analysis of problems, which in the main have previously only been approached descriptively. In the process of producing discourse, speakers and writers must decide what it is that they want to say and how to present it effectively. Kathleen McKeown's main concern is to identify and formalise principles of discourse so that they can be used in a computational process. The text generation theory she describes has been embodied in a computer program, TEXT, which, given a question, can produce a paragraph length response. An Appendix to the book provides examples of the TEXT system in operation.
 

What people are saying - Write a review

We haven't found any reviews in the usual places.

Contents

Introduction
1
12 A processing model
5
13 A sketch of related work
6
14 A text generation theory and method
8
15 System overview
11
16 The database application
13
17 Other issues
16
18 Guide to remaining chapters
17
43 Selection of relevant knowledge
113
432 Comparisons
114
484 Relevancy on the basis of conceptual closeness
116
435 Conclusions
121
44 Schema implementation
122
442 Arc actions
123
444 Graphs used
124
446 The compare and contrast schema
130

Discourse structure
19
21 Rhetorical predicates
20
212 Ordering communicative techniques
21
22 Analysis of texts
24
221 Predicate recursiveness
30
222 Summary of text analysis
37
23 Related research using rhetorical predicates
38
241 Associating technique with purpose
40
25 Selecting a schema
42
26 Filling the schema
45
27 An example
47
28 Future work
52
29 Conclusions
53
Focusing in discourse
55
31 Computational theories and uses of focusing
56
312 Immediate focus
57
32 Focusing and generation
58
321 Global focus and generation
59
322 Immediate focus and generation
60
323 Current focus versus potential focus list
62
324 Current focus versus focus stack
65
325 Other choices
67
326 A focus algorithm for generation
69
328 Overriding the default focus
70
829 The focus algorithm
71
3210 Use of focus sets
73
33 Focus and syntactic structures
75
332 Passing focus information to the tactical component
77
34 Future work
79
35 Conclusions
80
TEXT system implementation
83
41 System components
84
42 Knowledge representation
87
422 Portability
90
423 Summary
91
424 The entityrelationship model
92
425 Use of generalization
93
426 The topic hierarchy
97
427 Relations
100
428 Distinguishing descriptive attributes
102
429 DDAs for database entity generalizations
103
4210 Supporting database attributes
104
4211 Based database attributes
106
4212 DDAs for database entity subsets
109
4213 Constant database attributes
111
45 The tactical component
133
452 The grammar formalism
134
453 A functional grammar
138
454 The unifier
140
455 The TEXT system unifier
141
456 Unifying a sample input with a sample grammar
144
457 Grammar implementation
147
458 Morphology and linearization
151
459 Extensions
152
4511 Advantages
153
46 The dictionary
155
462 Structure of dictionary entries
156
463 General entries
157
464 An example
160
465 Creating the dictionary
164
466 Conclusions
167
47 Practical considerations
168
472 Question coverage
169
Discourse history
171
52 Questions about the difference between entities
172
53 Requests for definitions
178
54 Requests for information
180
55 Summary
183
Related generation research
185
61 Tactical components early systems
186
62 Tactical components later works
187
63 Generation in database systems
188
64 Planning and generation
189
65 Knowledge needed for generation
190
66 Text generation
191
Summary and conclusions
195
73 Discourse coherency
196
75 An evaluation of the generated text
197
76 Limitations of the implemented system
199
77 Future directions
200
772 Relevancy
203
774 User model
204
Sample output of the TEXT system
205
Introduction to Working
223
Resources used
225
Predicate semantics
227
Bibliography
237
Index
244
Copyright

Common terms and phrases

References to this book

All Book Search results »

Bibliographic information