کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
570147 876717 2006 27 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
What every agent-based modeller should know about floating point arithmetic
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزار
پیش نمایش صفحه اول مقاله
What every agent-based modeller should know about floating point arithmetic
چکیده انگلیسی

Floating point arithmetic is a subject all too often ignored, yet, for agent-based models in particular, it has the potential to create misleading results, and even to influence emergent outcomes of the model. Using a simple demonstration model, this paper illustrates the problems that accumulated floating point errors can cause, and compares a number of techniques that might be used to address them. We show that inexact representation of parameter values, imprecision in calculation results, and differing implementations of mathematical expressions can significantly influence the behaviour of the model, and create issues for replicating results, though they do not necessarily do so. None of the techniques offer a failsafe approach that can be applied in any situation, though interval arithmetic is the most promising.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Modelling & Software - Volume 21, Issue 3, March 2006, Pages 283–309
نویسندگان
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