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This book is an introduction to the statistical analysis of word frequency distributions, intended for linguists, psycholinguistics, and researchers work­ ing in the field of quantitative stylistics and anyone interested in quantitative aspects of lexical structure. Word frequency distributions are characterized by very large numbers of rare words. This property leads to strange statisti­ cal phenomena such as mean frequencies that systematically keep changing as the number of observations is increased, relative frequencies that even in large samples are not fully reliable estimators ofpopulationprobabilities, and model parameters that emerge as functions of the text size. Special statistical techniques for the analysis of distributions with large numbers of rare events can be found in various technical journals. The aim of this book is to make these techniques more accessible for non-specialists. Chapter 1 introduces some basic concepts and notation. Chapter 2 describes non-parametricmethods for the analysis ofword frequency distributions. The next chapterdescribes in detail three parametricmodels, the lognormal model, the Yule-Simon Zipfian model, and the generalized inverse Gauss-Poisson model. Chapter 4 introduces the concept of mixture distributions. Chapter 5 explores the effectofnon-randomness inword use on the accuracy of the non­ parametric and parametric models, all of which are based on the assumption that words occur independently and randomly in texts. Chapter 6 presents examples of applications.

Linguistics --- Artificial intelligence --- Computational linguistics --- Psycholinguistics --- Statistics --- Computational Linguistics --- Statistics, general --- Artificial Intelligence (incl. Robotics) --- Theoretical Linguistics --- AI (Artificial intelligence) --- Artificial thinking --- Electronic brains --- Intellectronics --- Intelligence, Artificial --- Intelligent machines --- Machine intelligence --- Thinking, Artificial --- Bionics --- Cognitive science --- Digital computer simulation --- Electronic data processing --- Logic machines --- Machine theory --- Self-organizing systems --- Simulation methods --- Fifth generation computers --- Neural computers --- Linguistic science --- Science of language --- Language and languages --- Language, Psychology of --- Psychology of language --- Speech --- Psychology --- Thought and thinking --- Automatic language processing --- Language data processing --- Natural language processing (Linguistics) --- Applied linguistics --- Cross-language information retrieval --- Mathematical linguistics --- Multilingual computing --- Statistical analysis --- Statistical data --- Statistical methods --- Statistical science --- Mathematics --- Econometrics --- Psychological aspects --- Data processing --- E-books --- Artificial intelligence. --- Word frequency. --- Computational linguistics. --- Statistics . --- Psycholinguistics. --- Linguistics. --- Computational Linguistics. --- Statistics, general. --- Artificial Intelligence. --- Theoretical Linguistics.