Results 111 to 120 of about 243,973 (317)
This article offers a comprehensive review of topic modeling techniques, tracing their evolution from inception to recent developments. It explores methods such as latent Dirichlet allocation, latent semantic analysis, non‐negative matrix factorization, probabilistic latent semantic analysis, Top2Vec, and BERTopic, highlighting their strengths ...
Pratima Kumari +6 more
wiley +1 more source
Dual-feature spectrum sensing exploiting eigenvalue and eigenvector of the sampled covariance matrix
The signal can be charactered by both eigenvalues and eigenvectors of covariance matrix. However, the existing detection methods only exploit the eigenvalue or eigenvector.
Yanping Chen, Yulong Gao
doaj +1 more source
Discriminative Features via Generalized Eigenvectors [PDF]
Representing examples in a way that is compatible with the underlying classifier can greatly enhance the performance of a learning system. In this paper we investigate scalable techniques for inducing discriminative features by taking advantage of simple
Karampatziakis, Nikos, Mineiro, Paul
core
The first biometric framework to harness dynamic time warping (DTW) for single‐channel diaphragmatic surface electromyography authentication via post‐hoc alignment is presented. By optimally warping deep–normal–deep breath cycles, DTW achieves perfect genuine–impostor separation (equal error rates = 0%), while a parallel adaptive neuro‐fuzzy inference ...
Beyza Eraslan +2 more
wiley +1 more source
Research on Arc Fault Classification and Identification of Airborne ACIPDS Based on GA-RF
In order to solve the problem of arc fault classification in airborne intelligent power distribution system, an arc fault identification method based on genetic algorithm to optimize random forest was proposed.
Yufang Lu +5 more
doaj +1 more source
On the coding of Jacobi's method of computing eigenvalues and eigenvectors of real, symmetric matrices [PDF]
F. J. Corbató
openalex +1 more source
The combination of a parity‐time symmetry wireless technology with a cholesterol sensor integrated into a smart contact lens enables high‐sensitivity cholesterol sensing at low concentration. Cholesterol plays a critical role in physiological functions, but elevated levels increase the risk of cardiovascular disease.
Yang Cui +4 more
wiley +1 more source
This review explores how shape‐changing structures—origami, bistable, and laminate structures—enable multifunctionality in soft robotics and metamaterials. Starting from structural design, it examines core principles, real‐world applications, and ongoing challenges.
Lingchen Kong, Yaoyao Fiona Zhao
wiley +1 more source
Eigenvectors of certain matrices
AbstractAn algorithm is given for calculation of eigenvalues and eigenvectors of centrosymmetric and some related matrices, and some desirable properties of the algorithm are proved. Centrosymmetric matrices are characterized by a symmetry property of their eigenvectors and this result is used to establish a property of certain methods for the ...
openaire +3 more sources

