- Paperback: 318 pages
- Publisher: Prentice Hall; 1st edition (January 26, 1990)
- Language: English
- ISBN-10: 0139119914
- ISBN-13: 978-0139119910
- Product Dimensions: 7 x 0.9 x 9.2 inches
- Shipping Weight: 1.4 pounds (View shipping rates and policies)
- Average Customer Review: 5 customer reviews
- Amazon Best Sellers Rank: #2,624,901 in Books (See Top 100 in Books)
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Text Compression 1st Edition
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From the Back Cover
Compression means making things smaller by applying pressure. Text compression is not about physically squashing text, but about finding ways to represent t in fewer bits or bytes. It is necessary that the coded form can be decompressed to reconstitute the original text ( otherwise, compression is trivial!), and it is usually important that the original is recreated exactly, not approximately.
Top customer reviews
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The book has just the right mix of information theory and application. Everything you need to know to understand compression is here; all the rest is in the details.
2. Math theory is not approached systematically neither algrebaically. For instance, a proof that arithmetic compression works can take less than a page, and the details given take a lot of space and are not as clear as they could be.
3. Although the book emphasizes the idea of separating the model from the coder, the language used is the C programming language, which imposes severe restrictions to this separation. The model and the coder do not exist as entities on their own, they just have different memory space allocations. Compare this to a reasonably good implementation in a pure object environment, where you can actually model a coder object and a model object.
4. I wrote a final project based on this book consisting of several kinds of compression algorithms with implementations for the course Mathematical Objects in Smalltalk at the University of Buenos Aires.
The authors have released the second edition of this book titled as "Managing Gigabytes : Compressing and Indexing Documents and Images". It is more upto date & also covers image compression rather than the first edition (this book, that is, Text Compression) covering only textual compression. It also has lots of other new info in the second edition. Btw, the second edition is cheaper than the first edition.
BTW, this is a tremendous book to have if you are brand new or a pro in compression technology. One of the authors also wrote another book called "Data Mining: Practical Machine Learning Tools & Techniques with Java Implementations", which is a really good addition to one's library!