Muzzle Point Pattern-Based Techniques for Individual Cattle Identification

2017 ◽  
pp. 111-135
Author(s):  
Santosh Kumar ◽  
Sanjay Kumar Singh ◽  
Rishav Singh ◽  
Amit Kumar Singh
Keyword(s):  
Point Pattern ◽  
Muzzle Point

Muzzle point pattern based techniques for individual cattle identification

2017 ◽  
Vol 11 (10) ◽  
pp. 805-814 ◽  
Author(s):  
Santosh Kumar ◽  
Sanjay Kumar Singh ◽  
Amit Kumar Singh
Keyword(s):  
Point Pattern ◽  
Muzzle Point

Identification of Cattle Based on Muzzle Point Pattern: A Hybrid Feature Extraction Paradigm

2017 ◽  
pp. 137-161
Author(s):  
Santosh Kumar ◽  
Sanjay Kumar Singh ◽  
Rishav Singh ◽  
Amit Kumar Singh
Keyword(s):  
Feature Extraction ◽  
Point Pattern ◽  
Hybrid Feature Extraction ◽  
Muzzle Point

scholarly journals Does fluvial channel-belt clustering predict net sand to gross rock volume? Architectural metrics and point-pattern analysis of a digital outcrop model

2019 ◽  
Vol 89 (11) ◽  
pp. 1109-1126
Author(s):  
Alexander R. Koch ◽  
Cari L. Johnson ◽  
Lisa Stright
Keyword(s):  
Large Scale ◽  
Small Scale ◽  
Point Pattern ◽  
Point Patterns ◽  
Spatial Point ◽  
Channel Belt ◽  
John Henry Member ◽  
Scale Point ◽  
Belt Width ◽  
Digital Outcrop

ABSTRACT Spatial point-pattern analyses (PPAs) are used to quantify clustering, randomness, and uniformity of the distribution of channel belts in fluvial strata. Point patterns may reflect end-member fluvial architecture, e.g., uniform compensational stacking and avulsion-generated clustering, which may change laterally, especially at greater scales. To investigate spatial and temporal changes in fluvial systems, we performed PPA and architectural analyses on extensive outcrops of the Cretaceous John Henry Member of the Straight Cliffs Formation in southern Utah, USA. Digital outcrop models (DOMs) produced using unmanned aircraft system-based stereophotogrammetry form the basis of detailed interpretations of a 250-m-thick fluvial succession over a total outcrop length of 4.5 km. The outcrops are oriented roughly perpendicular to fluvial transport direction. This transverse cross-sectional exposure of the fluvial system allows a study of the system's variation along depositional strike. We developed a workflow that examines spatial point patterns using the quadrat method, and architectural metrics such as net sand to gross rock volume (NTG), amalgamation index, and channel-belt width and thickness within moving windows. Quadrat cell sizes that are ∼ 50% of the average channel-belt width-to-thickness ratio (16:1 aspect ratio) provide an optimized scale to investigate laterally elongate distributions of fluvial-channel-belt centroids. Large-scale quadrat point patterns were recognized using an array of four quadrat cells, each with 237× greater area than the median channel belt. Large-scale point patterns and NTG correlate negatively, which is a result of using centroid-based PPA on a dataset with disparately sized channel belts. Small-scale quadrat point patterns were recognized using an array of 16 quadrat cells, each with 21× greater area than the median channel belt. Small-scale point patterns and NTG correlate positively, and match previously observed stratigraphic trends in the fluvial John Henry Member, suggesting that these are regional trends. There are deviations from these trends in architectural statistics over small distances (hundreds of meters) which are interpreted to reflect autogenic avulsion processes. Small-scale autogenic processes result in architecture that is difficult to correlate between 1D datasets, for example when characterizing a reservoir using well logs. We show that 1D NTG provides the most accurate prediction for surrounding 2D architecture.

scholarly journals Efficiency loss and support for income redistribution: Evidence from a laboratory experiment

2021 ◽  
pp. 104346312110155
Author(s):  
Markus Tepe ◽  
Fabian Paetzel ◽  
Jan Lorenz ◽  
Maximilian Lutz
Keyword(s):  
Laboratory Experiment ◽  
Group Communication ◽  
Negative Relationship ◽  
Income Redistribution ◽  
Point Pattern ◽  
Minor Role ◽  
Treatment Variable ◽  
Efficiency Loss ◽  
Tax Rate ◽  
Negative Effect

Income redistribution with an efficiency loss is expected to have a twofold negative effect on support for redistribution, as it lowers egoistic support for redistribution and activates efficiency preferences. This study tests whether such a negative relationship exists, increases with the size of efficiency loss and interacts with group communication and the income position. We present a laboratory experiment in which subjects receive a randomly allocated income and must coordinate on a majority tax rate using a deliberative communication tool. The rate of money lost as a part of the redistribution process is manipulated as a treatment variable (0%, 5%, 20%, or 60%). Experimental evidence shows that efficiency loss exerts a robust negative effect on support for redistribution. The effect shows a tipping point pattern, is stronger at the lower end of the income distribution and is not fully explained by egoistic preferences. Inefficiency matters mostly for the chosen tax rate after group communication. At an efficiency loss of 60%, however, group communication does not affect support for redistribution, which implies that inefficiencies tend to play a minor role in the context of redistribution as long as they are within a moderate range. JEL Classification: C91, C92, D63, D72

scholarly journals Two-way layout factorial experiments of spatial point pattern responses in mineral flotation

Test ◽  
2021 ◽  
Author(s):  
Jonatan A. González ◽  
Bernardo M. Lagos-Álvarez ◽  
Jorge Mateu
Keyword(s):  
Point Pattern ◽  
Factorial Experiments ◽  
Spatial Point Pattern ◽  
Spatial Point ◽  
Mineral Flotation

A point pattern model of the spread of foot-and-mouth disease

2002 ◽  
Vol 56 (1) ◽  
pp. 33-49 ◽  
Author(s):  
G Gerbier ◽  
J.N Bacro ◽  
R Pouillot ◽  
B Durand ◽  
F Moutou ◽  
...  
Keyword(s):  
Foot And Mouth Disease ◽  
Mouth Disease ◽  
Point Pattern ◽  
Foot And Mouth
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