Results 1 to 10 of about 465,321 (223)
Spectral Statistics of Sample Block Correlation Matrices [PDF]
A fundamental concept in multivariate statistics, sample correlation matrix, is often used to infer the correlation/dependence structure among random variables, when the population mean and covariance are unknown. A natural block extension of it, {\it sample block correlation matrix}, is proposed to take on the same role, when random variables are ...
Zhigang Bao +3 more
openalex +3 more sources
Statistics of blocks in k-divisible non-crossing partitions [PDF]
We derive a formula for the expected number of blocks of a given size from a non-crossing partition chosen uniformly at random. Moreover, we refine this result subject to the restriction of having a number of blocks given.Furthermore, we generalize to $k$-divisible partitions.
Octavio Arizmendi
openalex +5 more sources
Block Statistics in Subcritical Graph Classes
© Dimbinaina Ralaivaosaona, Clément Requilé, and Stephan Wagner; licensed under Creative Commons License CC ...
Dimbinaina Ralaivaosaona +2 more
openalex +6 more sources
$K$ block set partition patterns and statistics [PDF]
A set partition $ $ of $[n]=\{1,\cdots ,n\}$ contains another set partition $ $ if a standardized restriction of $ $ to a subset $S\subseteq[n]$ is equivalent to $ $. Otherwise, $ $ avoids $ $. Sagan and Goyt have determined the cardinality of the avoidance classes for all sets of patterns on partitions of $[3]$.
Amrita Acharyya +2 more
openalex +3 more sources
Block-Based Statistics for Robust Non-parametric Morphometry
Automated algorithms designed for comparison of medical images are generally dependent on a sufficiently large dataset and highly accurate registration as they implicitly assume that the comparison is being made across a set of images with locally matching structures.
Geng Chen +6 more
openalex +5 more sources
Real-time detection of WeChat moments interface blocking behavior and generation of generational user personas based on YOLOv5 [PDF]
With the continuous expansion of user scale on social media platforms, WeChat Moments, as a core social scene for Chinese users, has become a key issue in privacy management and user experience optimization due to the dynamic monitoring of interface ...
Yiguo Yu, Ye Wang, Ruixiang Liu
doaj +2 more sources
Eigenvalue Statistics for Random Block Operators
Ph. D.
Daniel Schmidt
openalex +2 more sources
Possible Concussions Related to a Direct Head Kick Among College Taekwondo Athletes [PDF]
PURPOSE Executing a head kick (HK) in sparring-taekwondo (S-TKD) is a common, legal move and is promoted by competition rules by awarding higher points.
Hye-Jin Kim, Jae-Ok Koh
doaj +1 more source
Arterial covered stent used in resection of complex carotid body tumor: a single-center retrospective study [PDF]
Objective To evaluate arterial covered stent used in the resection of complex carotid body tumor (CBT) and postoperative adverse events. Methods Twelve patients with CBT Shamblin type Ⅱ 3 cases and type Ⅲ 9 cases from 2018 to 2020 who ...
YANG Shaofei, YANG Guanghua, PU Jiaxi, LU Minhao, ZHAO Zhiqing, ZHAO Bin
doaj +1 more source
Forward and backward blocking in statistical learning [PDF]
AbstractPrediction errors have a prominent role in many forms of learning. For example, in reinforcement learning, agents learn by updating the association between states and outcomes as a function of the prediction error elicited by the event. One paradigm often used to study error-driven learning is blocking.
İlayda Nazlı +3 more
openaire +4 more sources

