Short Notes: Permutation Backtracking in Lexicographic Order
نویسندگان
چکیده
منابع مشابه
Multiset Permutations in Lexicographic Order
In a previous work [12], we proposed a method for generating permutations in lexicographic order. In this study, we extend it to generate multiset permutations. A multiset is a collection of items that are not necessarily distinct. The guideline of the extension is to skip, as soon as possible, those partially-formed permutations that are less than or equal to the latest generated eligible perm...
متن کاملProbe Order Backtracking
The algorithm for constraint-satisfaction problems, Probe Order Backtracking, has an average running time much faster than any previously analyzed algorithm under conditions where solutions are common. The algorithm uses a probing assignment (a preselected test assignment to unset variables) to help guide the search for a solution. If the problem is not satisfied when the unset variables are te...
متن کاملPartial Order Backtracking Based Job Shop Rescheduling
We present here a discipline for job shop rescheduling based on partial order backtracking. We show that partial order backtracking ooers the rescheduler a framework for schedule repair, based upon a set of nogoods, which impose a systematic partial order on the set of activities to be repaired but allows non systematic techniques to be used within that framework. We present rescheduling as par...
متن کاملShort Notes
Evaporative water loss (EWL) occurs principally across the skin (cutaneous water loss, CWL) of terrestrial reptiles (Shoemaker and Nagy, 1977; Mautz, 1982), but EWL also occurs across respiratory passages (respiratory water loss) and the eyes (ocular water loss) (Mautz, 1982). Over 70% of EWL in agamid lizards is from CWL (Eynan and Dmi’el, 1993). The factors determining the rate of CWL are ski...
متن کاملGeneralizing Partial Order and Dynamic Backtracking
RecentlyFtwo new backtracking algorithmsF dynamic backtracking (DB) and partial order dynamic backtracking (PDB) have been presented. These algorithms have the property to be additive on disjoint subproblems and yet use only polynomial space. Unlike DBFPDB only imposes a partial search order and therefore appears to have more freedom than DB to explore the search space. HoweverFboth algorithms ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Computer Journal
سال: 1984
ISSN: 0010-4620,1460-2067
DOI: 10.1093/comjnl/27.4.373