کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4959590 | 1445949 | 2017 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Identification of effective implementations of simulated annealing for optimizing thinning schedules for single forest stands
ترجمه فارسی عنوان
شناسایی اجرای مؤثر آنیلینگ شبیه سازی شده برای بهینه سازی برنامه های نازک سازی درختان تک جنگل
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کلمات کلیدی
یا در کشاورزی، اقتصاد جنگل، بهینه سازی برنامه نازک، قابلیت اطمینان،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
علوم کامپیوتر (عمومی)
چکیده انگلیسی
We explored the most effective implementation of simulated annealing (SA) to optimize thinning schedules for single even-aged stands, with respect to the reliability of optimality. To enable foresters to use this implementation in a variety of situations, four yield models were set as benchmarks. We defined 32 implementations, each a different combination of variable control methods, proposal densities, cooling functions, and controlling the width of the proposal density. We tested these implementations using 625 SA parameter sets, resulting from the combination of five values each for initial and final temperature, the number of temperature levels, and proposal density width. We defined an energy function that enables us to predict potentially appropriate ranges of temperature parameters that relate to minimum acceptance rate. We ran each implementation 40 times for each yield model with each parameter set. To evaluate the reliability of SA under optimal parameters, we compared the objective values for the 40 runs using the best parameter set between implementations. To evaluate robustness under suboptimal parameter settings, we compared the variation in the mean objective values for all parameter sets between implementations. The variable control method significantly affected the reliability of SA under optimal parameters. Use of the Cauchy distribution for proposal density improved robustness under suboptimal parameter settings. The widths of proposal densities were better controlled when not taking temperature into account. The effect of cooling-function choice was relatively non-significant. We identified the implementation that appears best for both evaluations, and discussed the adjustment of its parameters.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Operational Research - Volume 262, Issue 3, 1 November 2017, Pages 1094-1108
Journal: European Journal of Operational Research - Volume 262, Issue 3, 1 November 2017, Pages 1094-1108
نویسندگان
Kai Moriguchi, Tatsuhito Ueki, Masashi Saito,