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Download An introduction to language processing with Perl and Prolog by Pierre M. Nugues PDF

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By Pierre M. Nugues

This e-book teaches the foundations of usual language processing and covers linguistics concerns. It additionally information the language-processing capabilities concerned, together with part-of-speech tagging utilizing ideas and stochastic thoughts. A key function of the e-book is the author's hands-on method all through, with vast routines, pattern code in Prolog and Perl, and an in depth advent to Prolog. The e-book is appropriate for researchers and scholars of ordinary language processing and computational linguistics.

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Extra info for An introduction to language processing with Perl and Prolog : an outline of theories, implementation, and application with special consideration of English, French, and German

Example text

This greatly eases the design of complex expressions and makes them very versatile. Regex languages use three main operators. Two of them are already familiar to us. The first one is the Kleene star or closure, denoted *. The second one is the concatenation, which is usually not represented. It is implicit in strings like abc, which is the concatenation of characters a, b, and c. To concatenate the word computer, a space symbol, and science, we just write them in a row: computer science. The third operation is the union and is denoted “|”.

The expression \ matches place but neither aces nor acetylene. The expression \ matches exactly the word act and not react or acted. 12 summarizes anchors and some nonprintable characters. In Perl, word boundaries are indicated by \b instead of \< and \>, as in \bact\b. 11. Predefined character classes. Expressions Descriptions \d Any digit. Equivalent to [0-9] \D \w Any nondigit. Equivalent to [ˆ0-9] Any word character: letter, digit, or underscore.

Give the morpheme list of: unpleasant, déplaisant, unangenehm. 5. Draw the tree structure of the sentences: The cat caught the mouse. Le chat attrape la souris. Die Katze fängt die Maus. 6. Identify the main functions of these sentences and draw the corresponding dependency net linking the words: The cat caught the mouse. Le chat attrape la souris. Die Katze fängt die Maus. 7. Draw the dependency net of the sentences: The mean cat caught the gray mouse on the table. Le chat méchant a attrapé la souris grise sur la table.

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