WeekDaze.ExecutionConfiguration.EvolutionStrategies

AUTHOR

Dr. Alistair Ward

DESCRIPTION

Defines the extent to which various strategies are applied in an attempt to evolve the timetable.

Types

Type-synonyms

Data-types

data EvolutionStrategies fecundityDecayRatio populationDiversityRatio

Defines the various strategies used to evolve the timetable.

Constructors

MkEvolutionStrategies

Fields

• getSynchronisedCourseMutationFecundity :: TimetableBreederFecundity

  Whether to attempt to evolve the timetable, by unbooking the lessons of synchronised courses, before (deterministically, randomly) reconstructing.

• getSynchronisedCourseByDayMutationFecundity :: TimetableBreederFecundity

  Whether to attempt to evolve the timetable, by unbooking synchronous groups of lessons for synchronised courses, before (deterministically, randomly) reconstructing.

• getExcessRunlengthMutationFecundity :: TimetableBreederFecundity

  Whether to attempt to evolve the timetable, by unbooking the terminal lessons of excessive runlengths, before (deterministically, randomly) reconstructing.

• getHomogeneousStudentViewLessonMutationFecundity :: TimetableBreederFecundity

  Whether to attempt to evolve the timetable, by unbooking groups of homogeneous student-view lessons, before (deterministically, randomly) reconstructing.

• getIncompleteCourseMutationFecundity :: TimetableBreederFecundity

  Whether to attempt to evolve the timetable, by unbooking all the lessons for incomplete courses, in the timetable for each student, before (deterministically, randomly) reconstructing.

• getRandomLessonMutationFecundity :: TimetableBreederFecundity

  Whether to attempt to evolve the timetable, by unbooking random lessons from the timetable, before (deterministically, randomly) reconstructing.

• getSingletonStudentClassMutationFecundity :: TimetableBreederFecundity

  Whether to attempt to evolve the timetable, by unbooking lessons whose student-classes have been composed from a single student-body, before (deterministically, randomly) reconstructing.

• getSplitSessionMutationFecundity :: TimetableBreederFecundity

  Whether to attempt to evolve the timetable, by unbooking runlengths of lessons which occur in split sessions within a day, before (deterministically, randomly) reconstructing.

• getStudentBodyCombinationMutationFecundity :: TimetableBreederFecundity

  Whether to attempt to evolve the timetable, by unbooking lessons for a course, whose student-classes have been composed from more than one combination of student-bodies, before (deterministically, randomly) reconstructing.

• getStudentViewTimetableForDayMutationFecundity :: TimetableBreederFecundity

  Whether to attempt to evolve the timetable, by unbooking a whole day, from each studentViewTimetableForWeek in isolation, before (deterministically, randomly) reconstructing.

• getStudentViewTimetableForWeekMutationFecundity :: TimetableBreederFecundity

  Whether to attempt to evolve the timetable, by unbooking a small number of randomly selected lessons, from each studentViewTimetableForWeek in isolation, before (deterministically, randomly) reconstructing.

• getSynchronousLessonMutationFecundity :: TimetableBreederFecundity

  Whether to attempt to evolve the timetable, by unbooking groups of synchronous of heterogeneous lessons.

• getRandomLessonMutationNTrials :: Int

  The number of random trials to perform in getRandomLessonMutationFecundity.

• getRandomLessonMutationNTimeslots :: NTimeslots

  The number of time-slots to randomly unbook in getRandomLessonMutationFecundity.

• getStudentViewTimetableForDayMutationMaybeNDays :: Maybe NDays

  The optional number of days to unbook in getStudentViewTimetableForDayMutationFecundity; if Nothing then all possible values are tried.

• getStudentViewTimetableForWeekMutationNTrials :: Int

  The number of random trials to perform in getStudentViewTimetableForWeekMutationFecundity.

• getStudentViewTimetableForWeekMutationNTimeslots :: NTimeslots

  The number of time-slots to randomly unbook in getStudentViewTimetableForWeekMutationFecundity.

• getFecundityDecayRatio :: fecundityDecayRatio

  The factor (in the closed unit-interval) by which the fecundity of the breeding-program for future generations, is multiplied (& therefore reduced), when the population-diversity ratio falls beneath getMinimumPopulationDiversityRatio.

• getMinimumPopulationDiversityRatio :: populationDiversityRatio

  The population-diversity ratio (in the closed unit-interval), beneath which a reduction in the fecundity of the breeding-program for future generations, by a factor of getFecundityDecayRatio, is triggered.

• getMaybeNInitialScouts :: Maybe NTimetables

  The initial number of candidates to select from each generation in the evolution of the timetable; if Nothing then all candidates measuring equal best & better than their parent, will be selected.

Instances

(Eq fecundityDecayRatio, Eq populationDiversityRatio) => Eq (EvolutionStrategies fecundityDecayRatio populationDiversityRatio)

Defined in WeekDaze.ExecutionConfiguration.EvolutionStrategies

Methods

(==) :: EvolutionStrategies fecundityDecayRatio populationDiversityRatio -> EvolutionStrategies fecundityDecayRatio populationDiversityRatio -> Bool

(/=) :: EvolutionStrategies fecundityDecayRatio populationDiversityRatio -> EvolutionStrategies fecundityDecayRatio populationDiversityRatio -> Bool

(Show fecundityDecayRatio, Show populationDiversityRatio) => Show (EvolutionStrategies fecundityDecayRatio populationDiversityRatio)

Defined in WeekDaze.ExecutionConfiguration.EvolutionStrategies

Methods

showsPrec :: Int -> EvolutionStrategies fecundityDecayRatio populationDiversityRatio -> ShowS

show :: EvolutionStrategies fecundityDecayRatio populationDiversityRatio -> String

showList :: [EvolutionStrategies fecundityDecayRatio populationDiversityRatio] -> ShowS

(NFData fecundityDecayRatio, NFData populationDiversityRatio) => NFData (EvolutionStrategies fecundityDecayRatio populationDiversityRatio)

Defined in WeekDaze.ExecutionConfiguration.EvolutionStrategies

Methods

rnf :: EvolutionStrategies fecundityDecayRatio populationDiversityRatio -> ()

(Fractional fecundityDecayRatio, Fractional populationDiversityRatio) => Default (EvolutionStrategies fecundityDecayRatio populationDiversityRatio)

Defined in WeekDaze.ExecutionConfiguration.EvolutionStrategies

Methods

def :: EvolutionStrategies fecundityDecayRatio populationDiversityRatio

(Fractional fecundityDecayRatio, Fractional populationDiversityRatio, XmlPickler fecundityDecayRatio, XmlPickler populationDiversityRatio, Ord fecundityDecayRatio, Ord populationDiversityRatio, Show fecundityDecayRatio, Show populationDiversityRatio) => XmlPickler (EvolutionStrategies fecundityDecayRatio populationDiversityRatio)

Defined in WeekDaze.ExecutionConfiguration.EvolutionStrategies

Methods

xpickle :: PU (EvolutionStrategies fecundityDecayRatio populationDiversityRatio)

(Num fecundityDecayRatio, Num populationDiversityRatio, Ord fecundityDecayRatio, Ord populationDiversityRatio, Show fecundityDecayRatio, Show populationDiversityRatio) => SelfValidator (EvolutionStrategies fecundityDecayRatio populationDiversityRatio)

Defined in WeekDaze.ExecutionConfiguration.EvolutionStrategies

Methods

getErrors :: EvolutionStrategies fecundityDecayRatio populationDiversityRatio -> [String]

isValid :: EvolutionStrategies fecundityDecayRatio populationDiversityRatio -> Bool

Constants

synchronisedCourseMutationTag :: String

Used to qualify XML.

synchronisedCourseByDayMutationTag :: String

Used to qualify XML.

excessRunlengthMutationTag :: String

Used to qualify XML.

homogeneousStudentViewLessonMutationTag :: String

Used to qualify XML.

incompleteCourseMutationTag :: String

Used to qualify XML.

randomLessonMutationTag :: String

Used to qualify XML.

singletonStudentClassMutationTag :: String

Used to qualify XML.

splitSessionMutationTag :: String

Used to qualify XML.

studentBodyCombinationMutationTag :: String

Used to qualify XML.

studentViewTimetableForDayMutationTag :: String

Used to qualify XML.

studentViewTimetableForWeekMutationTag :: String

Used to qualify XML.

synchronousLessonMutationTag :: String

Used to qualify XML.

fecundityDecayRatioTag :: String

Used to qualify XML.

minimumPopulationDiversityRatioTag :: String

Used to qualify XML.

nInitialScoutsTag :: String

Used to qualify XML.

Functions

Mutators

zeroSynchronisedCourseMutationFecundity :: Mutator fecundityDecayRatio populationDiversityRatio

zeroSynchronisedCourseByDayMutationFecundity :: Mutator fecundityDecayRatio populationDiversityRatio

zeroExcessRunlengthMutationFecundity :: Mutator fecundityDecayRatio populationDiversityRatio

zeroSingletonStudentClassMutationFecundity :: Mutator fecundityDecayRatio populationDiversityRatio

zeroSplitSessionMutationFecundity :: Mutator fecundityDecayRatio populationDiversityRatio

zeroStudentBodyCombinationMutationFecundity :: Mutator fecundityDecayRatio populationDiversityRatio

Predicates

areAllZero :: EvolutionStrategies fecundityDecayRatio populationDiversityRatio -> Bool