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We investigate the learning of quantitative structure activity relationships (QSARs) as a case-study of meta-learning. This application area is of the highest societal importance, as it is a key step in the development of new medicines. The…

Artificial Intelligence · Computer Science 2017-09-13 Ivan Olier , Noureddin Sadawi , G. Richard Bickerton , Joaquin Vanschoren , Crina Grosan , Larisa Soldatova , Ross D. King

Quantitative structure-activity relationship (QSAR) is a computer modeling technique for identifying relationships between the structural properties of chemical compounds and biological activity. QSAR modeling is necessary for drug…

Machine Learning · Computer Science 2024-06-19 Rifkat Davronova , Fatima Adilovab

Pairs of similar compounds that only differ by a small structural modification but exhibit a large difference in their binding affinity for a given target are known as activity cliffs (ACs). It has been hypothesised that quantitative…

Machine Learning · Computer Science 2023-04-25 Markus Dablander , Thierry Hanser , Renaud Lambiotte , Garrett M. Morris

Machine learning (ML) enables accurate and fast molecular property predictions, which are of interest in drug discovery and material design. Their success is based on the principle of similarity at its heart, assuming that similar molecules…

Computational Engineering, Finance, and Science · Computer Science 2026-01-09 Fang Wu

Quantitative Structure-Activity Relationship (QSAR) modeling is key in drug discovery, but classical methods face limitations when handling high-dimensional data and capturing complex molecular interactions. This research proposes enhancing…

Quantum Physics · Physics 2025-07-09 Alejandro Giraldo , Daniel Ruiz , Mariano Caruso , Guido Bellomo

Predicting bioactivity and physical properties of small molecules is a central challenge in drug discovery. Deep learning is becoming the method of choice but studies to date focus on mean accuracy as the main metric. However, to replace…

Machine Learning · Computer Science 2019-07-26 Yao Zhang , Alpha A. Lee

Although artificial neural networks have occasionally been used for Quantitative Structure-Activity/Property Relationship (QSAR/QSPR) studies in the past, the literature has of late been dominated by other machine learning techniques such…

Machine Learning · Statistics 2014-06-06 George E. Dahl , Navdeep Jaitly , Ruslan Salakhutdinov

Quantitative Structure-Activity Relationship (QSAR) has proved an invaluable tool in medicinal chemistry. Data availability at unprecedented levels through various databases have collaborated to a resurgence in the interest for QSAR. In…

Other Statistics · Statistics 2017-11-08 Marcelo T. de Oliveira , Edson Katekawa

Quantitative Structure-Activity Relationship (QSAR) modeling is a cornerstone of computational drug discovery. This research demonstrates the successful application of a Quantum Multiple Kernel Learning (QMKL) framework to enhance QSAR…

Quantum Physics · Physics 2025-12-17 Alejandro Giraldo , Daniel Ruiz , Mariano Caruso , Javier Mancilla , Guido Bellomo

Machine learning, data mining and artificial intelligence (AI) based methods have been used to determine the relations between chemical structure and biological activity, called quantitative structure activity relationships (QSARs) for the…

Artificial Intelligence · Computer Science 2009-10-06 Om Prasad Patri , Amit Kumar Mishra

Since the introduction of artificial intelligence in medicinal chemistry, the necessity has emerged to analyse how molecular property variation is modulated by either single atoms or chemical groups. In this paper, we propose to train…

Biomolecules · Quantitative Biology 2022-02-14 Alessio Ragno , Dylan Savoia , Roberto Capobianco

Quantitative structure-activity relationship (QSAR) modelling is effective 'bridge' to search the reliable relationship related bioactivity to molecular structure. A QSAR classification model contains a lager number of redundant, noisy and…

Machine Learning · Computer Science 2018-05-01 Liang-Yong Xia , Qing-Yong Wang

Supervised learning has been widely used for attack categorization, requiring high-quality data and labels. However, the data is often imbalanced and it is difficult to obtain sufficient annotations. Moreover, supervised models are subject…

Cryptography and Security · Computer Science 2022-09-05 Zihan Li , Wentao Chen , Zhiqing Wei , Xingqi Luo , Bing Su

In drug discovery, in vitro and in vivo experiments reveal biochemical activities related to the efficacy and toxicity of compounds. The experimental data accumulate into massive, ever-evolving, and sparse datasets. Quantitative…

Machine Learning · Computer Science 2024-05-21 Bingjia Yang , Yunsie Chung , Archer Y. Yang , Bo Yuan , Xiang Yu

Predicting the activities of compounds against protein-based or phenotypic assays using only a few known compounds and their activities is a common task in target-free drug discovery. Existing few-shot learning approaches are limited to…

Machine Learning · Computer Science 2023-11-29 Peter Eckmann , Jake Anderson , Michael K. Gilson , Rose Yu

Semisupervised methods inevitably invoke some assumption that links the marginal distribution of the features to the regression function of the label. Most commonly, the cluster or manifold assumptions are used which imply that the…

Statistics Theory · Mathematics 2011-12-02 Martin Azizyan , Aarti Singh , Larry Wasserman

Recently deep learning based quantitative structure-activity relationship (QSAR) models has shown surpassing performance than traditional methods for property prediction tasks in drug discovery. However, most DL based QSAR models are…

Biomolecules · Quantitative Biology 2023-04-25 Zhifeng Gao , Xiaohong Ji , Guojiang Zhao , Hongshuai Wang , Hang Zheng , Guolin Ke , Linfeng Zhang

Antitubercular activity of Sulfathiazole Derivitives series were subjected to Quantitative Structure Activity Relationship (QSAR) Analysis with an attempt to derive and understand a correlation between the Biologically Activity as dependent…

Computational Engineering, Finance, and Science · Computer Science 2014-02-25 Doreswamy , Chanabasyya M. Vastrad

Machine learning and deep learning have gained popularity and achieved immense success in Drug discovery in recent decades. Historically, machine learning and deep learning models were trained on either structural data or chemical…

Machine Learning · Statistics 2019-09-18 Huy Ngoc Pham , Trung Hoang Le

Antitubercular activity of 5-nitrofuran-2-yl Derivatives series were subjected to Quantitative Structure Activity Relationship (QSAR) Analysis with an effort to derive and understand a correlation between the biological activity as response…

Computational Engineering, Finance, and Science · Computer Science 2013-12-13 Doreswamy , Chanabasayya . M. Vastrad
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