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Open Modification Search (OMS) is a promising algorithm for mass spectrometry analysis that enables the discovery of modified peptides. However, OMS encounters challenges as it exponentially extends the search scope. Existing OMS…

Hardware Architecture · Computer Science 2024-11-15 Keming Fan , Wei-Chen Chen , Sumukh Pinge , H. -S. Philip Wong , Tajana Rosing

Mass spectrometry (MS) is essential for protein analysis but faces significant challenges with large datasets and complex post-translational modifications, resulting in difficulties in spectral identification. Open Modification Search (OMS)…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-09-23 Sumukh Pinge , Weihong Xu , Wout Bittremieux , Niema Moshiri , Sang-Woo Jun , Tajana Rosing

Large numbers of MS/MS peptide spectra generated in proteomics experiments require efficient, sensitive and specific algorithms for peptide identification. In the Open Mass Spectrometry Search Algorithm [OMSSA], specificity is calculated by…

Quantitative Methods · Quantitative Biology 2007-05-23 Lewis Y. Geer , Sanford P. Markey , Jeffrey A. Kowalak , Lukas Wagner , Ming Xu , Dawn M. Maynard , Xiaoyu Yang , Wenyao Shi , Stephen H. Bryant

Database-search algorithms, that deduce peptides from Mass Spectrometry (MS) data, have tried to improve the computational efficiency to accomplish larger, and more complex systems biology studies. Existing serial, and high-performance…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-02-08 Muhammad Haseeb , Fahad Saeed

We introduce an open source python framework named PHS - Parallel Hyperparameter Search to enable hyperparameter optimization on numerous compute instances of any arbitrary python function. This is achieved with minimal modifications inside…

Machine Learning · Computer Science 2020-02-28 Peter Michael Habelitz , Janis Keuper

Similarity search is one of the most fundamental computations that are regularly performed on ever-increasing protein datasets. Scalability is of paramount importance for uncovering novel phenomena that occur at very large scales. We…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-03-06 Oguz Selvitopi , Saliya Ekanayake , Giulia Guidi , Muaaz G. Awan , Georgios A. Pavlopoulos , Ariful Azad , Nikos Kyrpides , Leonid Oliker , Katherine Yelick , Aydın Buluç

The rapid expansion of mass spectrometry (MS) data, now exceeding hundreds of terabytes, poses significant challenges for efficient, large-scale library search - a critical component for drug discovery. Traditional processors struggle to…

The unbounded permutations of biological molecules, including proteins and their constituent peptides, presents a dilemma in identifying the components of complex biosamples. Sequence search algorithms used to identify peptide spectra can…

Quantitative Methods · Quantitative Biology 2023-05-17 Lewis Y. Geer , Joel Lapin , Douglas J. Slotta , Tytus D. Mak , Stephen E. Stein

Direct Multisearch (DMS) is a Derivative-free Optimization class of algorithms suited for computing approximations to the complete Pareto front of a given Multiobjective Optimization problem. It has a well-supported convergence analysis and…

Optimization and Control · Mathematics 2021-05-10 S. Tavares , C. P. Brás , A. L. Custódio , V. Duarte , P. Medeiros

Polyspectral estimation is a problem of great importance in the analysis of nonlinear time series that has applications in biomedical signal processing, communications, geophysics, image, radar, sonar and speech processing, etc. Higher…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-05-31 Abdullah-Al Mamun , Zigeng Wang , Xingyu Cai , Nalini Ravishanker , Sanguthevar Rajasekaran

Feature selection is a crucial step in machine learning, especially for high-dimensional datasets, where irrelevant and redundant features can degrade model performance and increase computational costs. This paper proposes a novel…

Neural and Evolutionary Computing · Computer Science 2024-10-30 Azam Asilian Bidgoli , Shahryar Rahnamayan

Hyperdimensional (HD) computing is built upon its unique data type referred to as hypervectors. The dimension of these hypervectors is typically in the range of tens of thousands. Proposed to solve cognitive tasks, HD computing aims at…

Machine Learning · Computer Science 2020-06-08 Lulu Ge , Keshab K. Parhi

Similarity search, the task of identifying objects most similar to a given query object under a specific metric, has gathered significant attention due to its practical applications. However, the absence of coordinate information to…

Databases · Computer Science 2024-05-14 Yifan Zhu , Ruiyao Ma , Baihua Zheng , Xiangyu Ke , Lu Chen , Yunjun Gao

Mining large-scale high-throughput tandem mass spectrometry data sets is a very important problem in mass spectrometry based protein identification. One of the fundamental problems in large scale mining of spectra is to design appropriate…

Quantitative Methods · Quantitative Biology 2007-05-23 Debojyoti Dutta , Ting Chen

Similarity search finds objects that are similar to a given query object based on a similarity metric. As the amount and variety of data continue to grow, similarity search in metric spaces has gained significant attention. Metric spaces…

Databases · Computer Science 2024-10-08 Yifan Zhu , Chengyang Luo , Tang Qian , Lu Chen , Yunjun Gao , Baihua Zheng

Reducing the cost of sequencing genomes provided by next-generation sequencing technologies has greatly increased the number of genomic projects. As a result, there is a growing need for better assembly and assembly validation methods. One…

Genomics · Quantitative Biology 2022-10-17 Przemysław Stawczyk , Robert Nowak

Product distribution matching (PDM) is proposed to generate target distributions over large alphabets by combining the output of several parallel distribution matchers (DMs) with smaller output alphabets. The parallel architecture of PDM…

Information Theory · Computer Science 2017-02-27 Georg Böcherer , Patrick Schulte , Fabian Steiner

Neural sequence models are widely used to model time-series data. Equally ubiquitous is the usage of beam search (BS) as an approximate inference algorithm to decode output sequences from these models. BS explores the search space in a…

Artificial Intelligence · Computer Science 2018-10-23 Ashwin K Vijayakumar , Michael Cogswell , Ramprasath R. Selvaraju , Qing Sun , Stefan Lee , David Crandall , Dhruv Batra

We present DEIMoS: Data Extraction for Integrated Multidimensional Spectrometry, a Python application programming interface (API) and command-line tool for high-dimensional mass spectrometry data analysis workflows that offers ease of…

Metabolomics complements investigation of the genome, transcriptome, and proteome of an organism. Today, the vast majority of metabolites remain unknown, in particular for non-model organisms. Mass spectrometry is one of the predominant…

Quantitative Methods · Quantitative Biology 2013-07-31 Kai Dührkop , Marcus Ludwig , Marvin Meusel , Sebastian Böcker
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