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thesis
Semi-automatic acquisition of domain-specific semantic structures.
Authors
Publication date
1 January 2000
Publisher
Abstract
Siu, Kai-Chung.Thesis (M.Phil.)--Chinese University of Hong Kong, 2000.Includes bibliographical references (leaves 99-106).Abstracts in English and Chinese.Chapter 1 --- Introduction --- p.1Chapter 1.1 --- Thesis Outline --- p.5Chapter 2 --- Background --- p.6Chapter 2.1 --- Natural Language Understanding --- p.6Chapter 2.1.1 --- Rule-based Approaches --- p.7Chapter 2.1.2 --- Stochastic Approaches --- p.8Chapter 2.1.3 --- Phrase-Spotting Approaches --- p.9Chapter 2.2 --- Grammar Induction --- p.10Chapter 2.2.1 --- Semantic Classification Trees --- p.11Chapter 2.2.2 --- Simulated Annealing --- p.12Chapter 2.2.3 --- Bayesian Grammar Induction --- p.12Chapter 2.2.4 --- Statistical Grammar Induction --- p.13Chapter 2.3 --- Machine Translation --- p.14Chapter 2.3.1 --- Rule-based Approach --- p.15Chapter 2.3.2 --- Statistical Approach --- p.15Chapter 2.3.3 --- Example-based Approach --- p.16Chapter 2.3.4 --- Knowledge-based Approach --- p.16Chapter 2.3.5 --- Evaluation Method --- p.19Chapter 3 --- Semi-Automatic Grammar Induction --- p.20Chapter 3.1 --- Agglomerative Clustering --- p.20Chapter 3.1.1 --- Spatial Clustering --- p.21Chapter 3.1.2 --- Temporal Clustering --- p.24Chapter 3.1.3 --- Free Parameters --- p.26Chapter 3.2 --- Post-processing --- p.27Chapter 3.3 --- Chapter Summary --- p.29Chapter 4 --- Application to the ATIS Domain --- p.30Chapter 4.1 --- The ATIS Domain --- p.30Chapter 4.2 --- Parameters Selection --- p.32Chapter 4.3 --- Unsupervised Grammar Induction --- p.35Chapter 4.4 --- Prior Knowledge Injection --- p.40Chapter 4.5 --- Evaluation --- p.43Chapter 4.5.1 --- Parse Coverage in Understanding --- p.45Chapter 4.5.2 --- Parse Errors --- p.46Chapter 4.5.3 --- Analysis --- p.47Chapter 4.6 --- Chapter Summary --- p.49Chapter 5 --- Portability to Chinese --- p.50Chapter 5.1 --- Corpus Preparation --- p.50Chapter 5.1.1 --- Tokenization --- p.51Chapter 5.2 --- Experiments --- p.52Chapter 5.2.1 --- Unsupervised Grammar Induction --- p.52Chapter 5.2.2 --- Prior Knowledge Injection --- p.56Chapter 5.3 --- Evaluation --- p.58Chapter 5.3.1 --- Parse Coverage in Understanding --- p.59Chapter 5.3.2 --- Parse Errors --- p.60Chapter 5.4 --- Grammar Comparison Across Languages --- p.60Chapter 5.5 --- Chapter Summary --- p.64Chapter 6 --- Bi-directional Machine Translation --- p.65Chapter 6.1 --- Bilingual Dictionary --- p.67Chapter 6.2 --- Concept Alignments --- p.68Chapter 6.3 --- Translation Procedures --- p.73Chapter 6.3.1 --- The Matching Process --- p.74Chapter 6.3.2 --- The Searching Process --- p.76Chapter 6.3.3 --- Heuristics to Aid Translation --- p.81Chapter 6.4 --- Evaluation --- p.82Chapter 6.4.1 --- Coverage --- p.83Chapter 6.4.2 --- Performance --- p.86Chapter 6.5 --- Chapter Summary --- p.89Chapter 7 --- Conclusions --- p.90Chapter 7.1 --- Summary --- p.90Chapter 7.2 --- Future Work --- p.92Chapter 7.2.1 --- Suggested Improvements on Grammar Induction Process --- p.92Chapter 7.2.2 --- Suggested Improvements on Bi-directional Machine Trans- lation --- p.96Chapter 7.2.3 --- Domain Portability --- p.97Chapter 7.3 --- Contributions --- p.97Bibliography --- p.99Chapter A --- Original SQL Queries --- p.107Chapter B --- Induced Grammar --- p.109Chapter C --- Seeded Categories --- p.11
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