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相关论文: A Hybrid Local Search for Simplified Protein Struc…

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The protein design problem involves finding polypeptide sequences folding into a given threedimensional structure. Its rigorous algorithmic solution is computationally demanding, involving a nested search in sequence and structure spaces.…

量子物理 · 物理学 2024-07-11 Veronica Panizza , Philipp Hauke , Cristian Micheletti , Pietro Faccioli

Protein structure prediction is a challenging and unsolved problem in computer science. Proteins are the sequence of amino acids connected together by single peptide bond. The combinations of the twenty primary amino acids are the…

计算工程、金融与科学 · 计算机科学 2015-10-12 Mahmood A. Rashid , Firas Khatib , Abdul Sattar

Accurate protein structure prediction from amino-acid sequences is critical to better understanding the protein function. Recent advances in this area largely benefit from more precise inter-residue distance and orientation predictions,…

机器学习 · 计算机科学 2021-06-01 Jiaxiang Wu , Shitong Luo , Tao Shen , Haidong Lan , Sheng Wang , Junzhou Huang

The Soft Happy Colouring (SHC) problem, a mathematical framework for identifying homophilic network structures, seeks to maximise the number of $\rho$-happy vertices, i.e. vertices with at least a proportion $\rho$ of neighbours that share…

社会与信息网络 · 计算机科学 2026-04-15 Mohammad Hadi Shekarriz , Asef Nazari , Dhananjay Thiruvady

Despite the constant evolution of similarity searching research, it continues to face the same challenges stemming from the complexity of the data, such as the curse of dimensionality and computationally expensive distance functions.…

信息检索 · 计算机科学 2022-10-06 Jaroslav Oľha , Terézia Slanináková , Martin Gendiar , Matej Antol , Vlastislav Dohnal

This work addresses approximate nearest neighbor search applied in the domain of large-scale image retrieval. Within the group testing framework we propose an efficient off-line construction of the search structures. The linear-time…

计算机视觉与模式识别 · 计算机科学 2018-09-21 Ahmet Iscen , Ondrej Chum

Protein structure prediction remains to be an open problem in bioinformatics. There are two main categories of methods for protein structure prediction: Free Modeling (FM) and Template Based Modeling (TBM). Protein threading, belonging to…

生物大分子 · 定量生物学 2015-09-14 Haicang Zhang , Mingfu Shao , Chao Wang , Jianwei Zhu , Wei-Mou Zheng , Dongbo Bu

We examined what determines the designability of 2-letter codes (H and P) lattice proteins from three points of view. First, whether the native structure is searched within all possible structures or within maximally compact structures.…

软凝聚态物质 · 物理学 2009-10-31 Rie Tatsumi , George Chikenji

The thermodynamic behavior and structural properties of hydrophobic-polar (HP) lattice proteins interacting with attractive surfaces are studied by means of Wang-Landau sampling. Three benchmark HP sequences (48mer, 67mer, and 103mer) are…

软凝聚态物质 · 物理学 2013-01-16 Ying Wai Li , Thomas Wüst , David P. Landau

The recent improvements in cryo-electron microscopy (cryo-EM) in the past few years are now allowing to observe molecular complexes at atomic resolution. As a consequence, numerous structures derived from cryo-EM are now available in the…

生物大分子 · 定量生物学 2020-05-04 Mikael Trellet , Gydo van Zundert , Alexandre M. J. J. Bonvin

Computational protein design aims at constructing novel or improved functions on the structure of a given protein backbone and has important applications in the pharmaceutical and biotechnical industry. The underlying combinatorial…

数据结构与算法 · 计算机科学 2011-03-29 Stefan Canzar , Nora C. Toussaint , Gunnar W. Klau

It is widely accepted that (1) the natural or folded state of proteins is a global energy minimum, and (2) in most cases proteins fold to a unique state determined by their amino acid sequence. The H-P (hydrophobic-hydrophilic) model is a…

计算几何 · 计算机科学 2007-05-23 Oswin Aichholzer , David Bremner , Erik D. Demaine , Henk Meijer , Vera Sacristán , Michael Soss

One algorithm to predict protein structure is the residual dipolar coupling based residue assembly and filter tool (REDCRAFT). This algorithm exploits an exponential reduction of the search space of all possible structures to find a…

生物大分子 · 定量生物学 2019-11-07 E. Timko , P. Shealy , M. Bryson , H. Valafar

Protein Structure Prediction (PSP) is an unsolved problem in the field of computational biology. The problem of protein structure prediction is about predicting the native conformation of a protein, while its sequence of amino acids is…

生物大分子 · 定量生物学 2022-06-06 Hossein Parineh , Nasser Mozayani

Deterministic loading of single atoms onto arbitrary two-dimensional lattice points has recently been demonstrated, where by dynamically controlling the optical-dipole potential, atoms from a probabilistically loaded lattice were relocated…

原子物理 · 物理学 2017-07-27 Woojun Lee , Hyosub Kim , Jaewook Ahn

We introduce a simple, fast, and easy to implement unsupervised learning algorithm for detecting different local environments on a single-particle level in colloidal systems. In this algorithm, we use a vector of standard bond-orientational…

软凝聚态物质 · 物理学 2020-01-08 Emanuele Boattini , Marjolein Dijkstra , Laura Filion

CLIP retrieval is typically framed as a pointwise similarity problem in a shared embedding space. While CLIP achieves strong global cross-modal alignment, many retrieval failures arise from local geometric inconsistencies: nearby items are…

We provide preliminary details and formulation of an optimization strategy under current development that is able to automatically tune the parameters of a Support Vector Machine over new datasets. The optimization strategy is a heuristic…

人工智能 · 计算机科学 2017-07-12 Sergio Consoli , Jacek Kustra , Pieter Vos , Monique Hendriks , Dimitrios Mavroeidis

Lattice rules and polynomial lattice rules are quadrature rules for approximating integrals over the $s$-dimensional unit cube. Since no explicit constructions of such quadrature methods are known for dimensions $s > 2$, one usually has to…

数值分析 · 数学 2014-04-23 Josef Dick , Peter Kritzer , Gunther Leobacher , Friedrich Pillichshammer

Local search is a powerful heuristic in optimization and computer science, the complexity of which has been studied in the white box and black box models. In the black box model, we are given a graph $G = (V,E)$ and oracle access to a…

计算复杂性 · 计算机科学 2024-11-19 Simina Brânzei , Nicholas J. Recker