This paper presents a comparative study of color and texture descriptors considering the Web as the environment of use. We take into account the diversity and large-scale aspects of the Web considering a large number of descriptors (24 color and 28 texture descriptors, including both traditional and recently proposed ones). The evaluation is made on two levels: a theoretical analysis in terms o...

This paper presents a new interest local regions descriptors method based on Hilbert-Huang Transform. The neighborhood of the interest local region is decomposed adaptively into oscillatory components called intrinsic mode functions (IMFs). Then the Hilbert transform is applied to each component and get the phase and amplitude information. The proposed descriptors samples the phase angles infor...

Three dimensional quantitative structure-activity relationship (3D-QSAR) studies have been performed on a series of 2-alkylbenzimidazole derivatives using the kNN-MFA Approach (k-nearest neighbour molecular field analysis). The QSAR models were generated using 14 compounds. By using kNN-MFA approach, various 3D QSAR models were generated to study the effect of steric and electrostatic descripto...

(Library and Information Science Abstracts) database records were consulted. After detailed comparisons, it was found that keywords provided by authors have an important presence in the database descriptors studied; nearly 25% of all the keywords appeared in exactly the same form as descriptors, with another 21% though normalized , still detected in the descriptors. This means that almost 46% o...

The protr package offers a unique and comprehensive toolkit for generating various numerical representation schemes of protein sequence. The descriptors included are extensively utilized in Bioinformatics and Chemogenomics research. The commonly used descriptors listed in protr include amino acid composition, autocorrelation, CTD, conjoint traid, quasi-sequence order, pseudo amino acid composit...

Antimicrobial peptides are host defense peptides being viewed as replacement to broad-spectrum antibiotics due to varied advantages. Hepatitis is the commonest infectious disease of liver, affecting 500 million globally with reported adverse side effects in treatment therapy. Antimicrobial peptides active against hepatitis are called as anti-hepatitis peptides (AHP). In current work, we present...

In spite of the huge economic importance of Aframomum melegueta in the herbal and pharmaceutical industries, its production is limited by lack of planting materials (propagules). The plant also lacks scientific descriptors, which has often led to misidentification with adverse health implications. We therefore aimed at developing a descriptor list to facilitate the identification of A. meleguet...

(Received April 21, 2010) ABSTRACT The full combinatorial search methodology has been used with a set of molecular connectivity indices plus five experimental parameters and the molar mass to extract the best descriptors for twelve properties of a set of organic solvents. The performance of the full combinatorial methodology is compared with the performance of the greedy search methodology obt...

This work presents study and experimentation for object recognition when isolated objects are under discussion. The circumstances of similarity transformations, presence of noise, and occlusion have been included as the part of the study. For simplicity, instead of objects, outlines of the objects have been used for the whole process of the recognition. Fourier Descriptors have been used as fea...

In this paper we compare the performance of interest point descriptors. Many different descriptors have been proposed in the literature. However, it is unclear which descriptors are more appropriate and how their performance depends on the interest point detector. The descriptors should be distinctive and at the same time robust to changes in viewing conditions as well as to errors of the point...