369 research outputs found
Special Issue of the 1st International Applied Bioinformatics Conference (iABC'21)
Get PDFAllmer J, Elloumi M, Comin M, Hofestädt R. Special Issue of the 1st International Applied Bioinformatics Conference (iABC'21). Journal of Integrative Bioinformatics. 2021;18(4)
Theoretical and practical analyses in metagenomic sequence classification
No full textMetagenomics is the study of genomic sequences in a heterogeneous microbial sample taken, e.g. from soil, water, human microbiome and skin. One of the primary objectives of metagenomic studies is to assign a taxonomic identity to each read sequenced from a sample and then to estimate the abundance of the known clades. With ever-increasing metagenomic datasets obtained from high-throughput sequencing technologies readily available nowadays, several fast and accurate methods have been developed that can work with reasonable computing requirements. Here we provide an overview of the state-of-the-art methods for the classification of metagenomic sequences, especially highlighting theoretical factors that seem to correlate well with practical factors, and could therefore be useful in the choice or development of a new method in experimental contexts. In particular, we emphasize that the information derived from the known genomes and eventually used in the learning and classification processes may create several experimental issues—mostly based on the amount of information used in the processes and its uniqueness, significance, and redundancy,—and some of these issues are intrinsic both in current alignment-based approaches and in compositional ones. This entails the need to develop efficient alignment-free methods that overcome such problems by combining the learning and classification processes in a single framework
Analysing Author Self-citations in Computer Science Publications
Get PDFIn scientific papers, citations refer to relevant previous work in order to underline the current line of argumentation, compare to other work and/or avoid repetition in writing. Self-citations, e.g. authors citing own previous work might have the same motivation but have also gained negative attention w.r.t. unjustified improvement of scientific performance indicators. Previous studies on self-citations do not provide a detailed analysis in the domain of computer science. In this work, we analyse the prevalence of self-citations in the DBLP, a digital library for computer science. We find, that approx. 10% of all citations are self-citations, while the rates vary with year after publication and the position of the author in the list as well as with the gender of the lead author. Further, we find that C-ranked venues have the highest incoming self-citation rate, while the outgoing rate is stable across all ranks
Space-Adaptive and Workload-Aware Replication and Partitioning for Distributed RDF Triple Stores
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On a Lie-theoretic Approach to Generalized Doubly Stochastic Matrices and Applications
No full textIn this article, we study generalized doubly stochastic matrices using the theory of Lie groups and Lie algebras. Applications to the inverse eigenvalue problem for symmetric doubly stochastic matrices are presented.ATIYAH M, 1982, B LOND MATH SOC, V23, P1; ATIYAH MF, 1983, P EDINBURGH MATH SOC, V26, P121; Audin M, 1991, TOPOLOGY TORUS ACTIO; BAUERLE GG, 1990, FINITE INFINITE DIME; BRUALDI RA, 1988, LINEAR ALGEBRA APPL, V107, P77, DOI 10.1016-0024-3795(88)90239-X; BRUALDI RA, 1991, ENCY MATH; CRUSE AB, 1975, DISCRETE MATH, V13, P109, DOI 10.1016-0012-365X(75)90012-6; GIBSON PM, 1980, LINEAR ALGEBRA APPL, V30, P101, DOI 10.1016-0024-3795(80)90185-8; GOURDIN M, 1982, BASICS LIE GROUPS; Helgason S., 1984, GROUPS GEOMETRIC ANA; JOHNSEN EC, 1971, LINEAR ALGEBRA APPL, V4, P225; Johnson C., 1981, LINEAR MULTILINEAR A, V10, P113, DOI 10.1080-03081088108817402; Katz M, 1970, J COMB THEORY, V8, P417, DOI 10.1016-S0021-9800(70)80034-5; Kirillov A.A., 1976, ELEMENTS THEORY REPR; Kostant B., 1973, ANN SCI ECOLE NORM S, p[6, 413]; Minc H., 1988, NONNEGATIVE MATRICES; MOURAD BH, 1998, THESIS U NEW S WALES; Perfect H., 1965, MONATSH MATH, V69, P35, DOI 10.1007-BF01313442; SINKHORN R, 1962, NOT AM MATH SOC, V9, P334; Soules G., 1983, LINEAR MULTILINEAR A, V13, P241, DOI 10.1080-03081088308817523; Tam T.Y., 1997, LINEAR MULTILINEAR A, V43, P87, DOI 10.1080-030810897088185188101
The contemporary zejel in Morocco : ُمَو ْي را َط ْTram by Mourad Kadiri, the popular poet of Salé
No full textMourad Kadiri pertenece a la segunda generación de poetas populares marroquíes contemporáneos que cultivan el zéjel. En este trabajo, presentamos su último diván, طْرَامُوَيْْ Tranvía, a través de su estética formal y su lengua. El artículo está estructurado así: 0. Introducción. 1. El autor. 2. Los poetas populares contemporáneos. 3. El zéjel y su lengua de expresión. 3.1. Rasgos lingüísticos. 4. La estética de Mourad Kadiri en Tranvía. 4.1. Figuras literarias.Mourad Kadiri belongs to the second generation of contemporary Moroccan popular poets who cultivate the zejel. In this work, we present his latest divan, طْرَامُوَيْْ Tramway, through his formal aesthetics and his language. The article is structured as follows: 0. Introduction. 1. The author. 2. Contemporary popular poets. 3. The zejel and its language of expression. 3.1. Linguistic features 4. The aesthetics of Mourad Kadiri in Tramway. 4.1. Literary figures
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