منابع مشابه
New efficient shortest path simplex algorithm: pseudo permanent labels instead of permanent labels
We introduce a new network simplex pivot rule for the shortest path simplex algorithm. This new pivot rule chooses a subset of non-basic arcs to enter into the basis simultaneously. We call to this operation multiple pivot. We show that a shortest path simplex algorithm with this pivot rule makes O(n) multiple pivots and runs in O(nm) time. This new pivot rule is based on the new concept of pse...
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A catalogue of ideas for graphical analyses of growth data is presented, in the hope of stimulating the more imaginative analyses. Graphs can be particularly revealing, because the human eye is good at detecting patterns. Suggestions are given to make graphs more effective, and analyses more insightful.
متن کاملMacroecology of Australian Tall Eucalypt Forests: Baseline Data from a Continental-Scale Permanent Plot Network
Tracking the response of forest ecosystems to climate change demands large (≥1 ha) monitoring plots that are repeatedly measured over long time frames and arranged across macro-ecological gradients. Continental scale networks of permanent forest plots have identified links between climate and carbon fluxes by monitoring trends in tree growth, mortality and recruitment. The relationship between ...
متن کاملAssessing the quality of permanent sample plot databases for growth modelling in forest plantations
Informed plantation management requires a good database, since the quality of information depends on the quality of data, growth models and other planning tools. There are several important questions concerning permanent plots: how many plots, where to put them, and how to manage them. Plot measurement procedures are also important. This paper illustrates graphical procedures to evaluate existi...
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Estonian Agricultural University, Institute of Forestry and Rural Engineering, Kreutzwaldi 5, 51014 Tartu, Estonia. Email: [email protected] __________________________________________________________________________________ Abstract Tree-wise re-measured permanent sample plot data are needed to create and maintain modern forest growth models for Estonia. For that purpose an all-Estonian networ...
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ژورنال
عنوان ژورنال: Canadian Journal of Plant Science
سال: 1974
ISSN: 0008-4220,1918-1833
DOI: 10.4141/cjps74-066