نتایج جستجو برای: chemometrics

تعداد نتایج: 1779  

Journal: :Signal Processing 2011
Diana Porro-Muñoz Robert P. W. Duin Isneri Talavera-Bustamante Mauricio Orozco-Alzate

Representation of objects by multi-dimensional data arrays has become very common for many research areas e.g. image analysis, signal processing and chemometrics. In most cases, it is the straightforward representation obtained from sophisticated measurement equipments e.g. radar signal processing. Although the use of this complex data structure could be advantageous for a better discrimination...

2017
Jeremy COHEN

Although array factorization methods have been vastly investigated as a source separation tool in disparate areas like chemometrics or remote sensing, studying multiple data set simultaneously, factorizing very large data set and identifying the extracted components solely from their spectra remain challenging tasks. In this talk, I will present some recent works on these topics. First, I will ...

2006
M. Schuermans I. Markovsky S. Van Huffel

The Maximum Likelihood PCA (MLPCA) method has been devised in chemometrics as a generalization of the well-known PCA method in order to derive consistent estimators in the presence of errors with known error distribution. For similar reasons, the Total Least Squares (TLS) method has been generalized in the field of computational mathematics and engineering to maintain consistency of the paramet...

2008
A. R. Koohpaei S. J. Shahtaheri M. R. Ganjali A. Rahimi Forushani F. Golbabaei

Solid phase extraction is one of the major applications of molecularly imprinted polymers fields for clean-up of environmental and biological samples namely molecularly imprinted solid-phase extraction. In this study, solid phase extraction using the imprinted polymer has been optimized with the experimental design approach for a triazine herbicide, named atrazine with regard to the critical fa...

Journal: :Fuel 2022

Computational models may help to reduce research cost by predicting properties of alternative blends. Nowadays, most efforts focus on prediction a few for sets gasoline samples. However, there are no reports able classification samples with multiple output measured in real life refinery plants. In this work, Information Fusion (IF), Perturbation Theory (PT), and Machine Learning (ML) algorithm ...

Journal: :IOP conference series 2021

Abstract Printer inks are becoming necessary for utilization wide range of purposes by society in current times with rapid development technology and digital media area. Thus, forgery counterfeiting easier the criminals. It is dangerous as some criminals will misused mean addition adulteration parts text or numbers on document can be made an evidence trial court. characterization differentiatio...

Journal: :Sains Malaysiana 2021

Phyllanthus niruri is widely used in Indonesia as immunostimulant. The morphology of Leucaena leucocephala leaves similar to that P. leaves. L. easy find and collect because it distributed the world. Therefore, likely could be adulterated with leucocephala. identification authentication important ensure raw materials are original without any substitution or mixture other plants causing inconsis...

2012
Rasmus Bro Evangelos E. Papalexakis Evrim Acar Nicholas D. Sidiropoulos

Nowadays, chemometric applications in biology can readily deal with tens of thousands of variables, for instance, in omics and environmental analysis. Other areas of chemometrics also deal with distilling relevant information in highly information-rich data sets. Traditional tools such as the principal component analysis or hierarchical clustering are often not optimal for providing succinct an...

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