Introduction to Data Compression, Third Edition. Khalid Sayood. Understanding Digital Libraries, Second Edition. Michael Lesk. Bioinformatics: Managing. Introduction to Data Compression, Second Edition. Khalid Sayood. Multimedia Servers: Applications, Environments, and Design. Dinkar Sitaram and Asit Dan. Authors: Khalid Sayood. Paperback ISBN: eBook ISBN: Imprint: Morgan Kaufmann. Published Date: 23rd October .
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The second edition of Introduction to Data Compression builds on the features that made the first the logical choice-for practitioners who need a comprehensive . Introduction to Data Compression, Third Edition, is a concise and comprehensive guide to data Khalid Sayood. Elsevier . EBSCO ebook academic collection. Introduction to Data Compression, Fourth Edition, is a concise and comprehensive guide to the art and science of data compression. This new.
The algorithm performs clustering in which new sequences are compared with cluster-representative sequences to determine membership. If comparison fails to identify a suitable cluster, a new cluster is created. The validation results are especially striking for large datasets. Conclusions We introduce a fast and accurate clustering algorithm that relies on a grammar-based sequence distance.
Its statistical clustering quality is validated by clustering large datasets containing 16S rDNA sequences. Background The amount of biological information being gathered is growing faster than the rate at which it can be analyzed.
Data clustering, which compresses the problem space by reducing redundancy, is one viable tool for managing the explosive growth of data. In general, clustering algorithms are designed to operate on a large set of related values, eventually generating a smaller set of elements that represent groups of similar data points.
A central data element may then be used as the sole representative of a group. Significant clustering work relating to bioinformatics may be traced to the late s when methods for quick generation of nonredundant NR protein databases were developed. These combined identical or nearly identical protein sequences into single entries [ 1 - 3 ]. The primary benefits of these methods include faster searches of the NR protein databases and reduced statistical bias in the query results [ 1 ].
Similarly, computer programs such as those in ICAtools [ 4 ] were developed for compressing DNA databases by removing redundant sequences found via clustering resulting in faster database queries. Note that the use of the term "clustering" in these applications differs from another use often found in the literature where clustering refers to generating a phylogenetic distance matrix, such as in [ 5 ].
The operation of clustering used in this work identifies groups of sequences related by phylogeny; and it additionally applies to redundancy removal by identifying a sequence that suitably represents similar sequences. The drive to lower the expense of genome sequencing has led to the development of high-throughput sequencing technologies capable of generating millions of sequence fragments simultaneously.
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A clustering preprocessing step can be used to remove a great amount of fragment redundancy which, in turn, allows for quicker fragment reassembly. These OTUs are subsequently used as a basis for estimating species diversity between treatment groups or quantitative relationships of taxa between treatment groups. Alternatively, representative sequences from the OTUs are used for phylogeny-based analyses. Lempel-Ziv parsing [ 10 ] is used to estimate the grammar of each sequence to provide a distance metric among sequences.
Introduction to Data Compression, Fifth Edition, builds on the success of what is widely considered the best introduction and reference text on the art and science of data compression. Data compression techniques and technology are ever-evolving with new applications in image, speech, text, audio and video.
A grammar-based distance metric enables fast and accurate clustering of large sets of 16S sequences
This new edition includes all the latest developments in the field. Encompassing the entire field of data compression, the book includes lossless and lossy compression, Huffman coding, arithmetic coding, dictionary techniques, context based compression, and scalar and vector quantization.
The book provides a comprehensive working knowledge of data compression, giving the reader the tools to develop a complete and concise compression package. His research interests include data compression, joint source channel coding, and bioinformatics. We are always looking for ways to improve customer experience on Elsevier.
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Video Compression Appendix A: English Copyright:The Essential Guide to Image Processing. Computational Lithography. Adaptive Filters.
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Your display name should be at least 2 characters long. Principles of Spread-Spectrum Communication Systems. This text will appeal to professionals, software and hardware engineers, students, and anyone interested in digital libraries and multimedia.