کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
478261 1446040 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Adaptive linear combination of heuristic orderings in constructing examination timetables
ترجمه فارسی عنوان
ترکیب خطی مخلوطی از دستورات اکتشافی در ساخت جدول زمانی معاینه
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر علوم کامپیوتر (عمومی)
چکیده انگلیسی


• We focus on the difficulty of examinations assignment.
• We obtained scores using linear combination of heuristic(s) and heuristic modifier.
• Each heuristic was assigned with weight values.
• Combination of multiple heuristics is the effective way for good solution quality.
• Combinations are most effective when the weight of HM is very high.

In this paper, we investigate adaptive linear combinations of graph coloring heuristics with a heuristic modifier to address the examination timetabling problem. We invoke a normalisation strategy for each parameter in order to generalise the specific problem data. Two graph coloring heuristics were used in this study (largest degree and saturation degree). A score for the difficulty of assigning each examination was obtained from an adaptive linear combination of these two heuristics and examinations in the list were ordered based on this value. The examinations with the score value representing the higher difficulty were chosen for scheduling based on two strategies. We tested for single and multiple heuristics with and without a heuristic modifier with different combinations of weight values for each parameter on the Toronto and ITC2007 benchmark data sets. We observed that the combination of multiple heuristics with a heuristic modifier offers an effective way to obtain good solution quality. Experimental results demonstrate that our approach delivers promising results. We conclude that this adaptive linear combination of heuristics is a highly effective method and simple to implement.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Operational Research - Volume 232, Issue 2, 16 January 2014, Pages 287–297
نویسندگان
, , , , , ,