نتایج جستجو برای: selection strategy
تعداد نتایج: 641399 فیلتر نتایج به سال:
During non-migratory flight, gulls (Larids) use a wide variety of flight strategies. We investigate the extent to which the energy balance of a bird explains flight strategy selection. We develop a model based on optimal foraging and aerodynamic theories, to calculate the ground speeds and airspeeds at which a gull is expected to flap or soar during foraging flight. The model results are compar...
We study evolutionary prisoner's dilemma game by considering adaptive strategy-selection time scale among individuals according to a "win-slower, lose-faster" rule: if an individual successfully resists the invasion of an opponent, she is prone to hold her strategy for longer time through decreasing her strategy-selection time scale; otherwise, she increases the time scale because of losing. We...
– Over the last 30 years, sexual selection has become one of the most influential and rapidly growing areas within evolutionary biology and behavioral ecology. Sexual selection has important effects on the evolution of life history traits, mating systems and morphology, and also has been suggested as a factor that promotes speciation. Avian systems have played an essential role as models in the...
Organizations search for appropriate knowledge management strategies for successful knowledge management implementation. So, it is necessary to select and apply suitable strategies at the first step. Knowledge management maturity models help organizations to identify maturity level and effective knowledge management strategies. This paper tries to present a model for knowledge management strate...
An elitist selection adaptive Genetic Algorithm is presented to select an optimal cloud service composite plan from a lot of composite plans on the basis of global Qualityof-Service (QoS) constraints. In this Algorithm, some strategies are provided to improve convergence and population diversity and raise fitness result. These strategies include an elitist selection strategy, an individual sele...
In this paper, we propose a procedure to reduce data dimensionality while preserving relevant information for posterior crop cover classification. The huge amount of data involved in hyperspectral image processing is one of the main problems in order to apply pattern recognition techniques. We propose a dimensionality reduction strategy that eliminates redundant information and a subsequent sel...
The release of eggs and sperm into the environment for external fertilization is common (Giese & Kanatani 1987) and thought to be the ancestral mating strategy (Wray 1995). Most phyla have at least some species that release sperm into the environment (free spawning or spermcasting) and a majority have representatives that also release eggs (broadcast spawning) for external fertilization (Levita...
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