Computational Morphology: Practical Mechanisms for the English Lexicon

Abstract

Part 1 Introduction: the need for a computational lexicon what is the lexicon? morphology segmentation and orthography word structure the unit of storage lexical redundancy preprocessing and look-up what this book is about. Part 2 Morphographemics: generative phonology formalizing phonological rules transducers the two-level model the transducer version the two-level rule notation the lexicon and word grammar interface formal issues. Part 3 Word structure rules: context free rules features and categories the word structure formalism varieties of unification the term unification enhancements the role of the word grammar an illustrative. Part 4 Feature propagation in the word grammar: beyond structural rules other theories of feature propagation feature-passing conventions usefulness of conventions. Part 5 Lexical rules: lexicon expansion the role of lexical rules format of lexical rules completion rules multiplication rules consistency checks application of lexical rules lexicon management the advantages of lexical rules. Part 6 A description of English: overview of the model what is a morpheme? stems and affixes morphographemics lexical rules and defaults syntactic features inflection and derivation classifying words the word grammar feature conventions illustrative examples over-generation a caveat. Part 7 The implemented system: facilities provided the lexicon spelling rules the word grammar the analysis process dictionary command interpreter other implementation issues practical considerations. Part 8 Limitations and extensions: spelling rules word grammar and feature conventions lexical entries and rules idioms compounds irregularity and blocking the implemented system. Appendices: definition of the linguistic notation syntactic and morphological features some sample lexical entries a description of English morphology sample results of lexical look-up formal definitions complexity of two-level morphology.