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Efficient structure search is a major challenge in computational materials science. We present a modification of the basin hopping global geometry optimization approach that uses a curvilinear coordinate system to describe global trial…

Molecular structures are always depicted as 2D printed form in scientific documents like journal papers and patents. However, these 2D depictions are not machine-readable. Due to a backlog of decades and an increasing amount of these…

In the genomic analysis, it is significant while challenging to identify markers associated with cancer outcomes or phenotypes. Based on the biological mechanisms of cancers and the characteristics of datasets as well, this paper proposes a…

统计方法学 · 统计学 2022-11-30 Yang Li , Fan Wang , Rong Li , Yifan Sun

RNA secondary structures prediction is one of the main issues in bioinformatics. It seeks to elucidate structural conserved regions within a set of RNA sequences. Unfortunately, finding an accurate conserved structure is a very hard task to…

数据结构与算法 · 计算机科学 2013-02-07 Abdesslem Layeb , Amira Boudra , Wissem Korichi , Salim Chikhi

Elucidating chemical reactivity in complex molecular assemblies of a few hundred atoms is, despite the remarkable progress in quantum chemistry, still a major challenge. Black-box search methods to find intermediates and transition-state…

化学物理 · 物理学 2014-10-16 Moritz P. Haag , Alain C. Vaucher , Mael Bosson , Stephane Redon , Markus Reiher

Many proteins carry out their biological functions by forming the characteristic tertiary structures. Therefore, the search of the stable states of proteins by molecular simulations is important to understand their functions and…

生物大分子 · 定量生物学 2015-05-22 Yoshitake Sakae , Tomoyuki Hiroyasu , Mitsunori Miki , Katsuya Ishii , Yuko Okamoto

Due to the wide range of timescales that are present in macromolecular systems, hierarchical multiscale strategies are necessary for their computational study. Coarse-graining (CG) allows to establish a link between different system…

To obtain an electron-density map from a macromolecular crystal the phase-problem needs to be solved, which often involves the use of heavy-atom derivative crystals and concomitantly the determination of the heavy atom substructure. This is…

生物大分子 · 定量生物学 2018-08-20 Bjørn Panyella Pedersen , Pontus Gourdon , Xiangyu Liu , Jesper Lykkegaard Karlsen , Poul Nissen

A novel framework has recently been proposed for designing the molecular structure of chemical compounds with a desired chemical property using both artificial neural networks and mixed integer linear programming. In the framework, a…

机器学习 · 计算机科学 2021-08-24 Naveed Ahmed Azam , Jianshen Zhu , Kazuya Haraguchi , Liang Zhao , Hiroshi Nagamochi , Tatsuya Akutsu

In this publication we introduce SAMPLE, a structure search approach for commensurate organic monolayers on inorganic substrates. Such monolayers often show rich polymorphism with diverse molecular arrangements in differently shaped unit…

We introduce a two-step procedure, in the context of ultra-high dimensional additive models, which aims to reduce the size of covariates vector and distinguish linear and nonlinear effects among nonzero components. Our proposed screening…

统计理论 · 数学 2017-08-30 M. Kazemi , D. Shahsavani , M. Arashi

A novel framework has recently been proposed for designing the molecular structure of chemical compounds with a desired chemical property, where design of novel drugs is an important topic in bioinformatics and chemo-informatics. The…

Optical chemical structure recognition (OCSR) systems aim to extract the molecular structure information, usually in the form of molecular graph or SMILES, from images of chemical molecules. While many tools have been developed for this…

计算机视觉与模式识别 · 计算机科学 2024-07-29 Ching Ting Leung , Yufan Chen , Hanyu Gao

Ongoing progress in computational intelligence (CI) has led to an increased desire to apply CI techniques for the purpose of improving software engineering processes, particularly software testing. Existing state-of-the-art automated…

神经与进化计算 · 计算机科学 2023-02-16 Jarrod Goschen , Anna Sergeevna Bosman , Stefan Gruner

With the surge of multi- and manycores, much research has focused on algorithms for mapping and scheduling on these complex platforms. Large classes of these algorithms face scalability problems. This is why diverse methods are commonly…

分布式、并行与集群计算 · 计算机科学 2017-07-27 Andrés Goens , Sergio Siccha , Jeronimo Castrillon

Around half of all cancer patients, world-wide, will receive some form of radiotherapy (RT) as part of their treatment. And yet, despite the rapid advance of high-throughput screening to identify successful chemotherapy drug candidates,…

医学物理 · 物理学 2023-04-07 Wojciech Ozimek , Rafał Banaś , Paweł Gora , Simon D. Angus , Monika J. Piotrowska

Interprocedural analysis is at the heart of numerous applications in programming languages, such as alias analysis, constant propagation, etc. Recursive state machines (RSMs) are standard models for interprocedural analysis. We consider a…

编程语言 · 计算机科学 2014-11-27 Krishnendu Chatterjee , Rasmus Ibsen-Jensen , Andreas Pavlogiannis , Prateesh Goyal

In this paper we introduce a theoretical framework for semi-discrete optimization using ideas from optimal transport. Our primary motivation is in the field of deep learning, and specifically in the task of neural architecture search. With…

偏微分方程分析 · 数学 2022-02-01 Nicolas Garcia Trillos , Javier Morales

To effectively leverage user-specific data, retrieval augmented generation (RAG) is employed in multimodal large language model (MLLM) applications. However, conventional retrieval approaches often suffer from limited retrieval accuracy.…

计算机视觉与模式识别 · 计算机科学 2026-03-04 Maoliang Li , Ke Li , Yaoyang Liu , Jiayu Chen , Zihao Zheng , Yinjun Wu , Chenchen Liu , Xiang Chen

Searching for potential active compounds in large databases is a necessary step to reduce time and costs in modern drug discovery pipelines. Such virtual screening methods seek to provide predictions that allow the search space to be…

生物大分子 · 定量生物学 2023-05-23 Rafael Mena-Yedra , Juana L. Redondo , Horacio Pérez-Sánchez , Pilar M. Ortigosa