Results 61 to 70 of about 1,252,389 (155)

Conservation in conflict: Illegal drugs versus habitat in the Americas [PDF]

open access: yes, 2008
About the book: State of the Wild is a biennial series that brings together international conservation experts and writers to discuss emerging issues in the conservation of wildlife and wild places.
Bejarano, Adriana C.   +1 more
core  

A correlated topic model of Science

open access: yes, 2007
Topic models, such as latent Dirichlet allocation (LDA), can be useful tools for the statistical analysis of document collections and other discrete data. The LDA model assumes that the words of each document arise from a mixture of topics, each of which
Blei, David M., Lafferty, John D.
core   +2 more sources

Gait recognition based on sparse linear subspace

open access: yesIET Image Processing, 2021
Gait recognition has broad application prospects in intelligent security monitoring. However, due to the variability of human walking states and the complexity of external conditions during sample collection, gait recognition is still facing many ...
Junqin Wen, Xiuhui Wang
doaj   +1 more source

Online variational inference on finite multivariate Beta mixture models for medical applications

open access: yesIET Image Processing, 2021
Technological advances led to the generation of large scale complex data. Thus, extraction and retrieval of information to automatically discover latent pattern have been largely studied in the various domains of science and technology.
Narges Manouchehri   +2 more
doaj   +1 more source

Affine projection Weibull M‐transform least mean square algorithm against impulsive interference

open access: yesIET Communications, 2021
The well‐known affine projection sign algorithm is one of the classic adaptive filtering methods for denoising and channel equalisation, which can achieve robust performance against coloured input and impulse noise.
Pingchuan Liu, Kuangang Fan, Haiyun Qiu
doaj   +1 more source

Nested Hierarchical Dirichlet Processes [PDF]

open access: yes, 2014
We develop a nested hierarchical Dirichlet process (nHDP) for hierarchical topic modeling. The nHDP is a generalization of the nested Chinese restaurant process (nCRP) that allows each word to follow its own path to a topic node according to a document ...
Blei, David M.   +3 more
core   +1 more source

NHNet: A non‐local hierarchical network for image denoising

open access: yesIET Image Processing, 2022
With the fast development of deep learning models, hierarchical convolutional neural networks have achieved great success in image denoising tasks. To further boost the performance of image denoising, a novel non‐local hierarchical network (NHNet) is ...
Jiahong Zhang   +4 more
doaj   +1 more source

Scalable Text and Link Analysis with Mixed-Topic Link Models [PDF]

open access: yes, 2013
Many data sets contain rich information about objects, as well as pairwise relations between them. For instance, in networks of websites, scientific papers, and other documents, each node has content consisting of a collection of words, as well as ...
Chang J.   +8 more
core   +1 more source

A Quest for Equality: Breaking the Barriers for People with Disabilities [PDF]

open access: yes, 2010
Over the past decade, significant advances in accessibility of infrastructure, public transportation, housing and public accommodations have positively impacted the lives of people with disabilities across the country.

core  

Reflection positivity and invertible topological phases

open access: yes, 2019
We implement an extended version of reflection positivity (Wick-rotated unitarity) for invertible topological quantum field theories and compute the abelian group of deformation classes using stable homotopy theory.
Freed, Daniel S., Hopkins, Michael J.
core  

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