Vine copula is an important tool in modeling dependence structures of continuousvalued random variables. The maximum likelihood estimation (MLE) for vine copulas has long been considered computationally difficult in higher dimensions, even in 10 or 20 dimensions. Current computational practice, including the implementation in the state-ofthe-art R package VineCopula, suffers from the bottleneck...

A novel color-based recording and evaluation technique is presented which allows to determine the spatial distribution of foliage along approximately planar vine rows with high accuracy. The approach uses optical flow tracking to construct a composite from an image sequence and user-trainable bayesian color classification to segment foilage from a distinctively colored canvas carried along behi...

Purpose — This study aims to examine Islamic cryptocurrencies and their dependency on foreign exchange markets in vine copula architecture (CD-Vine) provide a framework for detecting complex dependence structures, risk management implications, hedging effectiveness.
 Design/Methodology/Approach used gold-backed three fiat currencies. The approach was preferred because it applies several di...

Evaporation from the soil surface (E) can be a significant source of water loss in arid areas. In sparsely vegetated systems, E is expected to be a function of soil, climate, irrigation regime, precipitation patterns, and plant canopy development and will therefore change dynamically at both daily and seasonal time scales. The objectives of this research were to quantify E in an isolated, drip-...

7 An n-dimensional joint uniform distribution is defined as a distribution whose one-dimensional marginals are uniform on some interval I. This interval is taken to be [0,1] or, when more convenient [− 1 2 , 1 2 ]. The specification of joint uniform distributions 9 in a way which captures intuitive dependence structures and also enables sampling routines is considered. The question whether ever...

8 The increasing availability of Very High Spatial Resolution images enables accurate 9 digital maps production as an aid for management in the agricultural domain. In 10 this study we develop a comprehensive and automatic tool for vineyard detection, 11 delineation and characterization using aerial images and without any parcel plan 12 availability. In France, vineyard training methods in rows...

One of the most commonly encountered plant-parasitic nematodes in eastern Washington Vitis vinifera vineyards is Meloidogyne hapla; however, limited research exists on the impact of this nematode on V. vinifera. The objectives of this research were to determine the impact of M. hapla on Chardonnay and Cabernet Sauvignon vine establishment and to determine the host status of V. vinifera varietie...

A statistical analysis of functional data, obtained as reflectance values measured using a hyperspectral sensor, was used to determine water content in vine leaves. Our study was conducted using a sample of 80 vine leaves whose water content was determined by calculating the weight difference between leaves before and after drying in an oven. Two regression models, one linear and the other non-...