The Umbrella Tree

Magnolia tree leaves make an ideal ingredient in compost. The green of the leaf has slight moisture and is nitrogen rich while the brown velvety underside is dry and. Seeds rare, unusual and exotic from Whatcom Seed Company shop for seeds, easy ordering and superfast delivery. MicrosoftLight. GBM A fast, distributed, high performance gradient boosting GBDT, GBRT, GBM or MART framework based on decision tree algorithms, used for ranking, classification and many other machine learning tasks. It is under the umbrella of the DMTKhttp github. Microsoft. Light. GBM is a gradient boosting framework that uses tree based learning algorithms. It is designed to be distributed and efficient with the following advantages Faster training speed and higher efficiency. Lower memory usage. Better accuracy. Parallel and GPU learning supported. Capable of handling large scale data. For more details, please refer to Features. The Umbrella Tree' title='The Umbrella Tree' />Comparison experiments on public datasets show that Light. GBM can outperform existing boosting frameworks on both efficiency and accuracy, with significantly lower memory consumption. Whats more, the parallel experiments show that Light. GBM can achieve a linear speed up by using multiple machines for training in specific settings. News. 081. 52. 01. The Umbrella Tree' title='The Umbrella Tree' />Optimal split for categorical features. Gitter is avaiable. The Umbrella Tree' title='The Umbrella Tree' />Python package is on Py. PI now. 0. 60. 92. Light. GBM Slack team is available. Light. GBM v. 2 stable release. Light. GBM supports GPU accelerated tree learning now. Please read our GPU Tutorial and Performance Comparison. Update to Light. GBM v. Light. GBM v. 1 stable release. Ben 10 Ultimate Alien Game Creator here. Release R package beta version, welcome to have a try and provide feedback. Categorical Features as input directly without one hot coding. Release Python package beta version, welcome to have a try and provide feedback. More detailed update logs Key Events. External unofficial Repositories. Julia Package https github. AllardvmLight. GBM. JPMML https github. Get Started and Documentation. Install by following the guide for the command line program, Python package or R package. Then please see the Quick Start guide. Our primary documentation is at https lightgbm. Next you may want to read Documentation for contributors Support. How to Contribute. Light. GBM has been developed and used by many active community members. Your help is very valuable to make it better for everyone. Check out call for contributions to see what can be improved, or open an issue if you want something. Contribute to the tests to make it more reliable. Contribute to the documents to make it clearer for everyone. Contribute to the examples to share your experience with other users. Open issue if you met problems during development. Microsoft Open Source Code of Conduct. This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencodemicrosoft. Umbrella Thorn Acacia tortilis. Name. Umbrella Thorn Acacia tortillisLatin Name. Acacia tortillis. Description. The bark has a rough feel and is grey to black in colour. The tree has a combination of one straight thorn with a small hooked thorn alongside. The thorns are thin and grow in pairs. The flowers form in clusters on old wood. The flowers themselves are creamy, white, balls. The pods are a distinctive pale, gold brown colour and are curled and twisted. The leaves are very small giving the umbrella a soft, feathery appearance. Browsing animals eat the leaves together with the thorns, the latter more easily when young and soft. The older, hardened thorns can be a deterrent to over browsing. The thorns are sharp and white, with some straight and others hooked. They are arranged singly or in pairs. The tree flowers in December summer with dense, packed white florets, but the flowering can be sporadic depending upon rain. It has the classic, umbrella shaped canopy associated with thorn trees. It reaches heights of between 5 2. Many bird species take advantage of this protection and build their nests in the canopy. It is fairly slow growing and reaches a final height of between 3 5 m with a spread of 8 1. Flowers and Fruit. Acacia tortilis Umbrella Thorn produces a large number of pods that are eaten by wild and domestic animals, and sometimes by man. The pods are tightly coiled spirals, pale brown and fall to the ground unopened. They accumulate in large numbers and are eaten with relish by such animals as Kudu, Impala, Rhino and Elephant. This is the manner in which the seeds of the unopened pod are dispersed for propagation and better germination after passing through an animals stomach. The pods of some other acacia trees split before falling to the ground, thus dispersing the seeds by scattering. Uses. The timber is used for fenceposts, firewood, furniture, and wagonwheels. The prolific pods make good fodder for desert grazers and the foliage is also palatable, being one of the major dry season fodder trees for the Sahara Sahelian belt. The bark is used for string in Tanganyika. Gum from the tree is edible and is used as a poor mans gum. It is the tree most recommended for reclaiming dunes in India and Africa. The thorny branches are used to erect temporary cages and pens. Bark said to be a good source of tannin. Africans once strung the pods into necklaces. Database Administration Procedures Manual. Senegalese use the roots for spear shafts, Lake Chad natives use the stems for fish spears. African nomads often use the flexible roots for frameworks of their temporary shelters. The pods and leaves are high in nutrition and are browsed by game and livestock. Vervet Monkeys and Baboons eat young green pods other animals eat the pods which fall to the ground. Habitat. Acacia tortilis occurs from sand dunes and rocky scarps to alluvial valley bottoms, avoiding seasonally waterlogged sites. A very drought resistant species, the umbrella thorn grows in areas with annual rainfall as low as 4. The tree favors alkaline soils but will colonize saline and gypseous soils. Where they are found. The Umbrella Thorn is one of the most widely distributed Acacias. This tree can be found in Mozambique, Botswana, Swaziland, Tranvaal, Orange Free State and the Cape. The tree has been described in Egypt and Arabia 2. It is said that stands of this tree show areas of good soil and good grasses.