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وصف كتب مصر
Provides readers with the methods, algorithms, and means to perform text
This book is devoted to the fundamentals of text mining using Perl, an
open-source programming tool that is freely available via the Internet
(www.perl.org). It covers mining ideas from several perspectives--statistics,
data mining, linguistics, and information retrieval--and provides readers with
the means to successfully complete text mining tasks on their own.
The book begins with an introduction to regular expressions, a text pattern
methodology, and quantitative text summaries, all of which are fundamental
tools of analyzing text. Then, it builds upon this foundation to explore:
Probability and texts, including the bag-of-words model Information retrieval
techniques such as the TF-IDF similarity measure Concordance lines and corpus
linguistics Multivariate techniques such as correlation, principal components
analysis, and clustering Perl modules, German, and permutation tests
Each chapter is devoted to a single key topic, and the author carefully and
thoughtfully introduces mathematical concepts as they arise, allowing readers
to learn as they go without having to refer to additional books. The inclusion
of numerous exercises and worked-out examples further complements the book's
Practical Text Mining with Perl is ideal as a textbook for undergraduate and
graduate courses in text mining and as a reference for a variety of
professionals who are interested in extracting information from text documents.