Results 1 to 10 of about 1,094,991 (265)
A Penalized Matrix Normal Mixture Model for Clustering Matrix Data [PDF]
Entropy, 2021 Along with advances in technology, matrix data, such as medical/industrial images, have emerged in many practical fields. These data usually have high dimensions and are not easy to cluster due to their intrinsic correlated structure among rows and ...
Jinwon Heo, Jangsun Baek
doaj +3 more sources
A microscopic normal matrix model for (A)dS 2
Journal of High Energy PhysicsWe describe the duality between the gravitating c = 1 (compact) Sine-Gordon model and a normal matrix model. From a two-dimensional quantum gravity perspective and due to the periodic nature of the potential, this model admits both anti-de Sitter and de ...
Panos Betzios
doaj +3 more sources
Matrix Normal Cluster-Weighted Models [PDF]
Journal of Classification, 2021 AbstractFinite mixtures of regressions with fixed covariates are a commonly used model-based clustering methodology to deal with regression data. However, they assume assignment independence, i.e., the allocation of data points to the clusters is made independently of the distribution of the covariates.
Tomarchio S. D. +2 more
openaire +2 more sources
Accelerated normal and skew-Hermitian splitting methods for positive definite linear systems [PDF]
Iranian Journal of Numerical Analysis and Optimization, 2013 For solving large sparse non-Hermitian positive definite linear equations, Bai et al. proposed the Hermitian and skew-Hermitian splitting methods (HSS). They recently generalized this technique to the normal and skew-Hermitian splitting methods (NSS). In
F. Toutounian, Davood Hezari
doaj +1 more source
Design of a novel stripline diplexer using frequency‐dependent couplings
Electronics Letters, 2023 A novel stripline diplexer design using frequency‐dependent couplings (FDC) to achieve multiple transmission zeros is developed in this paper. The transmission zeros generated by FDCs are flexible and controllable; on the basis of the existing cross ...
Jiaxing Song +5 more
doaj +1 more source
Frontiers in Public Health, 2023 BackgroundAdolescents relocated for poverty alleviation have considerable mental health problems (MHPs) in the context of changing living environments and COVID-19 epidemic prevention and control, and psychological resilience (PR) is closely related to ...
Hai Zhu +5 more
doaj +1 more source
Matrix metalloproteinases in normal menstruation [PDF]
Human Reproduction, 1996 Matrix metalloproteinases (MMP) are strongly implicated in menstruation. Messenger RNA for proMMP-1 and -3 was detectable in normal cycle endometrium only peri-menstrually and menstrually, although mRNA for their tissue inhibitors, TIMP-1 and TIMP-2, was present throughout the cycle.
L A, Salamonsen, D E, Woolley
openaire +2 more sources
Microstructure features and mechanical properties of non-heat treated HPDC Al9Si0.6Mn–TiB2 alloys
Journal of Materials Research and Technology, 2023 This study aimed to enhance the mechanical properties of high pressure die casting (HPDC) Al9Si0.6Mn alloys by incorporating in-situ TiB2 particles. The effects of TiB2 addition on the microstructure and mechanical properties of as-HPDC Al9Si0.6Mn alloys
Chengyang Hu +8 more
doaj +1 more source
Implications of Z-Normalization in the Matrix Profile [PDF]
, 2020 Companies are increasingly measuring their products and services, resulting in a rising amount of available time series data, making techniques to extract usable information needed. One state-of-the-art technique for time series is the Matrix Profile, which has been used for various applications including motif/discord discovery, visualizations and ...
Dieter De Paepe +2 more
openaire +2 more sources
Materials Research Letters, 2023 Reinforcements in metal composites are usually dispersed at grain boundaries. We here show that the rapid solidification during laser additive manufacturing enables the spontaneous engulfment of reinforcing particles inside aluminum grains, which helps ...
Bingkun Zou +8 more
doaj +1 more source