Results 21 to 30 of about 336,617 (266)
The Shape of Species Abundance Distributions Across Spatial Scales
Frontiers in Ecology and Evolution, 2021 Species abundance distributions (SADs) describe community structure and are a key component of biodiversity theory and research. Although different distributions have been proposed to represent SADs at different scales, a systematic empirical assessment ...
Laura H. Antão +4 more
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Introduction to Set Shaping Theory [PDF]
SSRN Electronic Journal, 2021 In this article, we define the Set Shaping Theory whose goal is the study of the bijection functions that transform a set of strings into a set of equal size made up of strings of greater length. The functions that meet this condition are many but since the goal of this theory is the transmission of data, we have analyzed the function that minimizes ...
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Characteristic Number: Theory and Its Application to Shape Analysis
Axioms, 2014 Geometric invariants are important for shape recognition and matching. Existing invariants in projective geometry are typically defined on the limited number (e.g., five for the classical cross-ratio) of collinear planar points and also lack the ability ...
Xin Fan +5 more
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Trajectory Shape Analysis and Anomaly Detection Utilizing Information Theory Tools
Entropy, 2017 In this paper, we propose to improve trajectory shape analysis by explicitly considering the speed attribute of trajectory data, and to successfully achieve anomaly detection.
Yuejun Guo +4 more
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A statistical theory of shape [PDF]
, 1998 In this paper, we will study the statistical theory of shape for ordered finite point configurations, or otherwise stated, the uncertainty of geometric invariants. A general approach for defining shape and finding its density, expressed in the densities for the individual points, is developed. Some examples, that can be computed analytically, are given,
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Large Deformation Constitutive Theory for a Two-Phase Shape Memory Alloy
Engineering Transactions, 2015 In this work we examine significant theoretical issues related to the constitutive modelling of a two-phase shape memory alloy which undergoes large deformations. For this purpose, we propose a new generalized plasticity based model.
Vassilis P. PANOSKALTSIS +2 more
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A Comprehensive Study of Clustering a Class of 2D Shapes
International Journal of Applied Mathematics and Computer Science, 2022 The paper is concerned with clustering with respect to the shape and size of 2D contours that are boundaries of cross-sections of 3D objects of revolution.
Kaliszewska Agnieszka, Syga Monika
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Children with sickle cell disease (SCD) face multiple acute and chronic medical complications that may impact their quality of life as reported by patients themselves. Health‐related social needs (HRSNs), such as food and housing insecurity, are common in people with SCD, but the association between HRSNs and patient‐reported ...
Sarah J. Marks +5 more
wiley +1 more source
Application of random access instruction strategy in electrotechnics course teaching
Gong-kuang zidonghua, 2014 In order to solve problems of weak basis of student and less teaching hours but more teaching content in electrotechnics course teaching, random access instruction strategy based on cognitive flexibility theory was adopted in the electrotechnics course ...
WU Yunxia, ZHAO Qingqing, SUN Guishuang
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