Results 111 to 120 of about 54,863 (259)

Musical instrument classification using non-negative matrix factorization algorithms

, 2006
In this paper, a class of algorithms for automatic classification of individual musical instrument sounds is presented. Several perceptual features used in general sound classification applications were measured for 300 sound recordings consisting of 6 ...
Benetos, E, Kotropoulos, C, Kotti, M
core   +3 more sources

SMILE: Extraction‐free submicron‐resolution mapping of lipid chain length and unsaturation by stimulated Raman imaging

VIEW, EarlyView.
In this work, we develop submicron‐resolution mapping of intracellular lipid elements (SMILE) as an extraction‐free vibrational spectroscopic imaging platform based on hyperspectral stimulated Raman scattering microscopy with a spectral analysis pipeline for pixel‐resolved lipid profiling.
Yihui Zhou, Xiangjie Huang, Xingxin Liu, Ling Zhang, Jie Huang, Jing Zhao, Yongqing Zhang, Jin Zhang, Yanqing Gong, Delong Zhang, Hyeon Jeong Lee   +10 more
wiley   +1 more source

Underdetermined blind source separation based on Fuzzy C-Means and Semi-Nonnegative Matrix Factorization [PDF]

, 2012
Conventional blind source separation is based on over-determined with more sensors than sources but the underdetermined is a challenging case and more convenient to actual situation.
Alshabrawy, Ossama S., Awad, W. A., Ghoneim, M. E., Hassanien, Aboul Ella   +3 more
core   +1 more source

Beyond Distinction: Private Art Museums and Their Versatile Role for Elites' (Self)Legitimization Discourses

The British Journal of Sociology, EarlyView.
ABSTRACT The 2000s have witnessed a significant, worldwide boom in new art museums founded by private, wealthy collectors. While the arts have long been a key arena for the remaking of elite distinction and the reproduction of inequalities, this surge in private museums has sparked much controversy.
Sara de Andrade Silva, Kristina Kolbe, Olav Velthuis   +2 more
wiley   +1 more source

Inertia-Constrained Pixel-by-Pixel Nonnegative Matrix Factorisation: A Hyperspectral Unmixing Method Dealing with Intra-Class Variability

Remote Sensing, 2018
Blind source separation is a common processing tool to analyse the constitution of pixels of hyperspectral images. Such methods usually suppose that pure pixel spectra (endmembers) are the same in all the image for each class of materials.
Charlotte Revel, Yannick Deville, Véronique Achard, Xavier Briottet, Christiane Weber   +4 more
doaj   +1 more source

Towards the Development of a Conceptual Framework of the Determinants of Pre‐eclampsia: A Hierarchical Systematic Review of Biomarkers

BJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.
ABSTRACT Background Pre‐eclampsia is a leading cause of maternal and perinatal morbidity and mortality. There are several determinants of individual pregnant women's risk of developing pre‐eclampsia, including biomarkers and ultrasound markers. Objective A conceptual framework to collate and summarise the extensive body of literature on biomarkers ...
Terteel Elawad, Hiten D. Mistry, Mai‐Lei Woo Kinshella, Marianne Vidler, Marie‐Laure Volvert, Helen Elwell, Veronique Filippi, Kelly Pickerill, Rachel Craik, Joel Singer, Rosemary Townsend, Hannah Blencowe, Eleni Z. Tsigas, Jeffrey N. Bone, Peter von Dadelszen, Laura A. Magee, the PRECISE Network, Umberto D’Alessandro, Anna Roca, Hawanatu Jah, Andrew Prentice, Melisa Martinez‐Alvarez, Brahima Diallo, Abdul Sesay, Sambou Suso, Baboucarr Njie, Fatima Touray, Yahaya Idris, Fatoumata Kongira, Modou F. S. Ndure, Lawrence Gibba, Abdoulie Bah, Yorro Bah, Marleen Temmerman, Angela Koech, Patricia Okiro, Geoffrey Omuse, Grace Mwashigadi, Mary Goretti Amondi, Consolata Juma, Joseph Mutunga, Moses Mukhanya, Robin Okello, Onesmus Wanje, Isaac Mwaniki, Marvin Ochieng, Emily Mwadime, Esperança Sevene, Corssino Tchavana, Salesio Macuacua, Anifa Vala, Helena Boene, Lazaro Quimice, Sonia Maculuve, Inacio Mandomando, Peter von Dadelszen, Laura A. Magee, Rachel Craik, Marie‐Laure Volvert, Hiten Mistry, Thomas Mendy, Donna Russell, Prestige Tatenda Makanga, Liberty Makacha, Reason Mlambo, Lucilla Poston, Rachel Tribe, Sophie Moore, Tatiana Salisbury, Aris Papageorghiou, Alison Noble, Rachel Craik, Hannah Blencowe, Veronique Filippi, Joy Lawn, Matt Silver, Joseph Akuze, Ursula Gazeley, Judith Cartwright, Guy Whitley, Sanjeev Krishna, Marianne Vidler, Jing Li, Jeff Bone, Mai‐Lei Woo Kinshella, Domena Tu, Ash Sandhu, Kelly Pickerill, Carla Carillho, Benjamin Barratt   +89 more
wiley   +1 more source

Defining and measuring homicide rates for birth cohorts: Methodological and theoretical challenges and solutions

Criminology, EarlyView.
Abstract Social scientists have long been interested in understanding how age, period, and cohort effects shape long‐term homicide trends. Yet fundamental measurement challenges remain pervasive in estimating age‐specific homicide rates for birth cohorts.
Jason Robey, Matt Vogel
wiley   +1 more source

New SVD based initialization strategy for Non-negative Matrix Factorization

, 2014
There are two problems need to be dealt with for Non-negative Matrix Factorization (NMF): choose a suitable rank of the factorization and provide a good initialization method for NMF algorithms.
Qiao, Hanli
core   +1 more source

Decoding the language of first impressions: Comparing models of first impressions of faces derived from free‐text descriptions and trait ratings

British Journal of Psychology, EarlyView.
Abstract First impressions formed from facial appearance predict important social outcomes. Existing models of these impressions indicate they are underpinned by dimensions of Valence and Dominance, and are typically derived by applying data reduction methods to explicit ratings of faces for a range of traits.
Alex L. Jones, Victor Shiramizu, Benedict C. Jones   +2 more
wiley   +1 more source

Intersecting Faces: Non-negative Matrix Factorization With New Guarantees

, 2015
Non-negative matrix factorization (NMF) is a natural model of admixture and is widely used in science and engineering. A plethora of algorithms have been developed to tackle NMF, but due to the non-convex nature of the problem, there is little guarantee ...
Ge, Rong, Zou, James
core