It is important to estimate the impact of protocol changes on expression profiles based on microarray data and eventually on classification accuracy. This estimation should be based on experiments with replicates. The...
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The ongoing reunification of the several biological areas - especially genetics, evolution, development and ecology - into a coherent whole will rely increasingly on the application of mathematic-computational concept...
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ISBN:
(纸本)0780375033
The ongoing reunification of the several biological areas - especially genetics, evolution, development and ecology - into a coherent whole will rely increasingly on the application of mathematic-computational concepts and techniques, which characterizes the new area of bioinformatics. The current article addresses such a tendency from the specific perspective of signal/image processing and analysis, outlining the main problems of interest and their specific demands. Among the several related approaches, special attention is focused on DNA chip image analysis, 3D gene expression characterization, the dynamical evolution of biological shapes, and dynamic systems models.
Large scale, rapid and accurate protein identification is the crucial basis for further protein analysis in computational proteomics. Searching protein database by use of the protein tandem mass spectra has been a sta...
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ISBN:
(纸本)9781424442942
Large scale, rapid and accurate protein identification is the crucial basis for further protein analysis in computational proteomics. Searching protein database by use of the protein tandem mass spectra has been a standard solution for solving this problem. Though several algorithms have been proposed, more sensitive and accurate approaches are still needed. In this paper, an effective database search approach is proposed. Prior to searching sequence database, an approach based on a graph-theoretic model is proposed to infer the peptide sequence tag (PST) from the tandem mass spectra data which is the partial sequence of the peptide. Also, an index approach for the protein sequence database is proposed for speeding up the database search and filtering out the incorrect protein sequences. Then, a novel scoring method for evaluating the match between the peptide sequence tag and the protein sequence is proposed for improving the accuracy of the database search result. Finally, we develop an algorithm for solving the problem and implement it as a computer program Pep Check. All the results of Pep Check are compared with those of the famous algorithms. Experimental results demonstrate that Pep Check is as accurate as or more accurate than them with the test datasets.
Metagenomics (MG) and Metatranscriptomics (MT) approaches open new perspectives on the interpretation of biological systems composed by complexmicrobial communities. Dealing with large sequencing datasets, to extract ...
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ISBN:
(纸本)9783319987026;9783319987019
Metagenomics (MG) and Metatranscriptomics (MT) approaches open new perspectives on the interpretation of biological systems composed by complexmicrobial communities. Dealing with large sequencing datasets, to extract the desired information and interpret the results are big challenges associated with meta-omics studies. There are several bioinformatics pipelines forMG data analysis and less toMT. Up to date, none performs a complete analysis integrating both MG and MT data, including the assembly of reads into contigs, functional and taxonomic annotation of identified genes, differential gene expression analysis and the comparison of multiple samples. Here, we present Meta-Omics Software for Community Analysis (MOSCA) that was designed with this purpose. It integrates RNA-Seq analysis with Whole Genome Sequencing as reference. Raw sequencing reads are submitted to preprocessing for quality trimming and rRNA removal, and assembled into contigs, which afterwards are annotated by using a reference database. MOSCA performs differential gene expression and provides graphical visualization of the results and comparison of multiple samples. Validation and reproducibility of the pipeline was obtained by using simulated MG and MT datasets.
Recent advancements in single-cell transcriptomics have revolutionized data generation, resulting in the production of vast amounts of single-cell RNA sequencing (scRNA-seq) data. The intricate biology of tissues and ...
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Advances in bioinformatics have contributed towards a significant increase in available information. Information analysis requires the use of distributed computing systems to best engage the process of data analysis. ...
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ISBN:
(纸本)9783642288388
Advances in bioinformatics have contributed towards a significant increase in available information. Information analysis requires the use of distributed computing systems to best engage the process of data analysis. This study proposes a multiagent system that incorporates grid technology to facilitate distributed data analysis by dynamically incorporating the roles associated to each specific case study. The system was applied to genetic sequencing data to extract relevant information about insertions, deletions or polymorphisms.
Alternative splicing is a highly important process in many eukaryotic organisms, but surprisingly little is known about its regulation. Often, this process involves cis-regulatory DNA motifs located within the alterna...
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The proceedings contain 63 papers from the 2004 2nd International ieeeconference Intelligent systems - Volume 1. The topics discussed include: intelligent decision making and information fusion;computational intellig...
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ISBN:
(纸本)0780382781
The proceedings contain 63 papers from the 2004 2nd International ieeeconference Intelligent systems - Volume 1. The topics discussed include: intelligent decision making and information fusion;computational intelligence approach to real-world cooperative vehicle dispatching problem;bioinformatics: a knowledge engineering approach;local minima free neural network learning and automatic text summarization with neural networks.
In the last years social networks have emerged as a critical mean for information spreading. In spite of all the positive consequences this phenomenon brings, unverified and instrumentally relevant information stateme...
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With the advancement of technologies, web services play a significant role to maintain infrastructure in healthcare domain due to the increasing demand of performance. In such systems, adoption of novel technologies i...
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