Just a friendly reminder to use the google group instead:
https://groups.google.com/forum/#!forum/drools-usage
https://groups.google.com/forum/#%21forum/drools-usage
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(this is indeed a Drools question)
It's a matter of adding Java annotations on those declared fact types.
I don't know if Drools supports that.
It would be nice if we have an example to demonstrate that.
Feel free to open a jira on OptaPlanner that we should create such an
example.
On 24-07-14
On 24-07-14 11:19, colorful.world wrote:
Hi Geoffrey,
Thanks for reply.
What we use for declaring fact type is just to have class declaration in drl
file. Since this drl string is loaded at runtime, we are able to have
dynamic class structures and drools rules from DB.
So, I am wondering if we
/forum.html
http://www.optaplanner.org/community/droolsPlannerRenamed.html
With kind regards,
Geoffrey De Smet
OptaPlanner lead
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1) There's 2 course grained moves out of the box in 6.1.0.CR1:
pillarChangeMove and pillarSwapMove.
And in 6.1.0.CR1 they also include subpillars (which is important).
http://docs.jboss.org/drools/release/latest/optaplanner-docs/html_single/index.html#pillarChangeMoveSelector
Start with trying
-specific Move.
See the examples that have custom moves.
Thanks again for your time,
Cheers,
Woody
2014-06-25 9:37 GMT+02:00 Geoffrey De Smet ge0ffrey.s...@gmail.com
mailto:ge0ffrey.s...@gmail.com:
1) There's 2 course grained moves out of the box in 6.1.0.CR1:
pillarChangeMove
On 16-06-14 13:46, dBijkoo wrote:
i have a class ChangeMoveFilter which implements
SelectionFilterChangeMoveSelector to sort out moves that break hard
constraints.
In the config it looks like this
constructionHeuristic
queuedEntityPlacer
entitySelector
On 19-06-14 15:30, alainb wrote:
Dear All,
I'm trying to model multiple time windows of the same vendor by multiplying
the vendors with different time windows and demand. This seems to work.
However, I can do the same with the depot but it doesn't represent what I
need.
I'm using salomon
On 23-06-14 09:32, dBijkoo wrote:
When i use the maximumSecondsSpend termination variable in the solverconfig
it doesnt always fully process the methods in the
PlanningVariableListenerEntity. Most of the time it gives me a solution
with semi done shadow variables but not always.
However
Hi Wolfgang,
I just haven't gotten around to split off OptaPlanner dev yet,
but it's on my TODO list.
I am just back from holidays, so I won't get to it this week, hopefully
next week.
On 23-06-14 11:55, Wolfgang Laun wrote:
Friends,
this is to let you know that I have done as the subject
On 11-06-14 09:30, Neb wrote:
Thanks Geoffrey
I have managed to get it working by manually changing some values in the
latitude and longitude elements in the xml file.
What I am struggling with is generating an xml file with my own data in each
element.
do you have any tips on how to
See
http://docs.jboss.org/drools/release/latest/optaplanner-docs/html_single/index.html#buildFromSource
and
https://github.com/droolsjbpm/optaplanner/tree/master/optaplanner-examples/src/main/java/org/optaplanner/examples/vehiclerouting
On 12-06-14 10:09, Tuomas Kallio wrote:
Hi,
I found
Hi Jonathan,
On 09-06-14 20:52, jonathan.labin wrote:
I know that this topic has come up before. At various times there were
responses indicating that it was being considered at some level within the
project(s).
How has that played out? Was there progress or has the idea been put on the
On 06-06-14 14:13, dBijkoo wrote:
when I use this code:
subChainChangeMoveSelector
subChainSelector
entitySelector
subChainSelector doesn't supports an entitySelector element,
only a valueSelector element.
See
On 06-06-14 16:09, dBijkoo wrote:
This should be changed here:
http://docs.jboss.org/drools/release/6.0.1.Final/optaplanner-docs/html_single/index.html#subChainChangeMoveSelector
and at the subChainSwapMoveSelector chapter to avoid others running into the
same problem!!
Done, thanks for
The docs were wrong.
Docs fixed for 6.1.0.CR1:
http://github.com/droolsjbpm/optaplanner/commit/496ef134b
On 06-06-14 16:15, Geoffrey De Smet wrote:
On 06-06-14 14:13, dBijkoo wrote:
when I use this code:
subChainChangeMoveSelector
subChainSelector
I guess it's a matter of adjusting these 2 files to your needs:
https://github.com/droolsjbpm/optaplanner/blob/master/optaplanner-examples/src/main/java/org/optaplanner/examples/vehiclerouting/swingui/VehicleRoutingWorldPanel.java
Check if the logger isn't null (by adding a System.out in the then part
of the rule).
If that's the case, then that error message is pretty poor (or even
incorrect):
java.lang.RuntimeException: cannot invoke method: info
It should clearly talk about a NullPointer instead.
So, if that's the
Thanks for reporting (for both jira's)
On 12-05-14 09:27, Hagai wrote:
Link to the opened JIRA: https://issues.jboss.org/browse/PLANNER-238
https://issues.jboss.org/browse/PLANNER-238
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On 07-05-14 18:22, Hagai wrote:
I am implementing a vehiclerouting like solution with OptaPlanner
6.0.1.Final.
According to the documentation for continuous planning, the way to 'lock'
parts of the solution is by declaring a movableEntitySelectionFilter on the
planning entity: Section
Thanks for reporting.
That's a terminology bug.
The Vehicle isn't both an entity and not an entity...
A) It's an entity because it has @PlanningVariable and a shadow variable.
B) But it's also not an entity because it doesn't have any genuine
variables,
and therefore ScoreDirector throws that
On 01-05-14 16:36, jjn wrote:
Hi Geoffrey
I was thinking something like this
1. Create a data model for a request in jBPM, where there will be a fields -
id, complexity
2. Create a process model in jBPM for incoming requests being processed by
specific actors
3. Somehow call optaplanner
working on a scheduling solution for traveling engineers. Similar to
vehicle routing but with daily routes and more complex constrains (like
dependencies between visits).
Thanks,
Hagai Shatz
On 30 Apr 2014, at 20:31, Geoffrey De Smet ge0ffrey.s...@gmail.com wrote:
On 30-04-14 15:07, Hagai
It might be stuck in a local optima, some things to check:
A) Read the section score trap in the docs, to verify you don't have a
score trap
B) The default move types (changeMoveSelector and swapMoveSelector)
aren't strong enough to escape local optima.
B1) Try adding a pillarSwapMoveSelector.
So the JBPM human task assignments are a *task assignment problem* you
want to solve with OptaPlanner? Kris and I spoke about building some
out-of-the-box integration/docs for this. But for now you 'll have to do
the integration yourself. OptaPlanner is being successfully used for
other task
On 30-04-14 12:17, Hagai wrote:
Using OptaPlanner 6.0.1.Final and following the documentation for real-time
planning:
Alternatively, you can subscribe to the BestSolutionChangedEvent.
A BestSolutionChangedEvent doesn't guarantee that every ProblemFactChange
has been
processed already, so
On 30-04-14 15:04, Rupesh M G wrote:
Hi,
I tested Optaplanner successfully for a fleet planning application.
Upto 1200 trips with around 80 vehicles for 3 days is fine.
I'm reaching the target of 0 hard constraints in less than 30 minutes.
But my target is to plan for a month with 12000
On 30-04-14 15:07, Hagai wrote:
I do use it from other threads in the following 2 scenarios:
1. In a thread that monitors a stream of messages with fact changes. Just
before the thread add a new problem fact change to the solver, the code
checks if the message is relevant by examining the
On 25-03-14 13:12, Andrzej Raczkowski wrote:
Hello all OptaPlanner geeks! :)
This is my first post on this list. I would be very grateful if
somebody could give me any advice in this matter (details below).
We need to plan the schedule for repair units consisting of few people
with some
On 18-03-14 09:24, Scott Danner wrote:
Hello,
We have a resource allocation problem. Could this be solved with
OptaPlanner?
Here it is:
There are N projects located in various places that need work done
with machines (just one machine type for all machine work).
Work can be parallelized,
On 18-03-14 11:24, maciekpob wrote:
Hello again,
o) I completed the changes that you suggested last year concerning the issue
that I am encountering with opta planner with our application.
Note that I have at most one or two planning entities in the Solution (in
my test case).
It can. Good point.
That's multi-threading or multi-vm'ing the solver algorithm, not the
problem itself.
The second to last paragraph briefly mentions that too IIRC.
OptaPlanner will support this (hopefully for 6.2)
without breaking incremental score calculation:
I believe Edson had to make code changes in drools-core/compiler itself
to upgrade it from protobuf v.2.4.1 to v.2.5.0.
That implies that it's impossible to run drools 6 with protobuf 2.4.1.
Both the knowledige-api and kie-api both use the same implementation
(which is drools-core/compiler).
Check if the solution you give to solver.setPlanningProblem() has all
planning variables == null.
CH doesn't reïnitialize non-null planning variables by default (see
@PlanningVariable.reinitilizeFilter)
On 05-03-14 18:02, Nadim wrote:
ge0ffrey wrote
Without a construction heuristic, local
On 06-03-14 03:23, Nadim wrote:
I solved the construction heuristic problem. Someone it didn't dawn on me
right away that primitive types don't work properly as planning variables,
because they're always initialized, thus the construction heuristic quits
right away, thinking there's nothing
Hey,
To debug it, set a breakpoint in LocalSearchDecider.
To get it in code:
solverPhase = ((DefaultSolver) solver).getSolverPhaseList().get(1);
((DefaultLocalSearchSolverPhase)
solverPhase).getDecider().getMoveSelector();
But getDecider() isn't there... (going to add it now for 6.1).
HTH
Hi Karan,
Unfortunately, I don't have the time bandwidth to do peer reviews on
code zips in a community question.
(I do those for BRMS customers only)
But I think you might be suffering from a score corruption, which could
explain what you're seeing.
To verify that that's the problem, simply
On 03-03-14 23:32, Nadim wrote:
Hi, I'm new to OptaPlanner, and reading through the planning examples in the
documentation left me with a question. One problem I'm trying to model
involves a variable number of planning entities, which I didn't really see
addressed by any of the examples;
What happens if you don't use custom cloning?
(See section about cloning in docs for more info.)
On 04-03-14 13:18, moltenice wrote:
Hi ge0ffrey,
I understand. I forgot mentioning I am using OptaPlanner 6.0.1 Final.
Your last email proved useful, I encountered some errors which I tried
It's likely you have separate issues:
- score corruption
- bug in your custom cloner (which fails sooner than the score
corruption, that's why it doesn't show up)
I suggest fixing the score corruption first, while using the build-in
cloner.
Looks like you're using IncrementalJavaScoreCalculator
Without a construction heuristic, local search waste a lot of time doing
easy work.
No CH is like swimming 25 meter with LS.
CH with LS is like jumping 10 meters into the pool and then swimming the
remaining 15.
I've seen cases were it takes minutes for LS to make up for the work of CH.
it
If you have enough memory, you can cache the distance from every
location to every other location
before Solver.solve() or in Solution.getProblemFacts().
The machineReassignment example has a similar big 2 dimensional grid for
the cost of every machine to every other machine.
Don't go blindly
Almost nobody uses bruteForce, including the examples...
I 've got 1 integration test for it, NQueensBruteForceTest, (and all
tests are green upon a release), so it should work though.
What you're describing sounds like a bug:
DefaultBruteForceSolverPhase somehow forces BestSolutionRecaller to
ScoreDirector.getCalculateCount() will tell you the number of moves that
have been evaluated (because calculateScore() gets called for every move).
MoveSelector.getSize() will tell you the number of possible moves for
each step (but only a subset of those are evaluated)
To get either of those,
On 28-02-14 16:57, maciekpob wrote:
1.Is it possible that one move is evaluated many times?
Depends on Selector cacheType and selectionOrder (random vs shuffled).
See docs, chapter about selectors, cacheType etc.
2.I can't get MoveSelector neither from DeafultSolver nor from
On 27-02-14 16:55, Marcus Uerlings wrote:
Hi
I´ve download Optaplanner a couple of months ago and found it
fantastic!! Congrats to Geoffrey!
I´m not a programmer, but a logistic consultant to a non-governmental
organization (NGO) of recycling products and like to give my cent of
A workaround in optaplanner 6.0.1 is probably to enforce RETE_OO
(unfortunately ScoreDirectorFactoryConfig#buildKieBase hard codes that,
so that's a PITA).
It's fixed in BRMS 6.0.0.GA and optaplanner 6.1.0.Beta1.
optaplanner 6.1.0.Beta1 might be released later this month.
On 19-02-14 13:11,
The examination example is the only example which is left on my to
cleanup list.
It's difficult and convoluted currently.
The curriculum course example is very similar, has 2 planning variables
on the same planning entity,
and is a much prettier example to learn from.
Here's how you configure
On 12-02-14 20:55, Karri Niemelä wrote:
1) So for example when using toy1.xml there is 140 shifts/assigments.
This means each nurse(11 of them) will get about 10-15 assignments.
(= DayOfWeekCover/cover/shift/preferred is 2)
But what if I want to make sure in contract MinNumAssignments = 20
On 06-02-14 14:17, Mats Norén wrote:
Hi,
I have a use case where multiple users need to run multiple
simultaneous solvers.
Is there a best practice in scaling out Optaplanner for multitenancy?
Just to be clear I'm not interested in scaling out a single
optimization run but instead multiple
On 22-01-14 14:56, milenko wrote:
Dear OptaPlanner users,
I am working for a small company located in Munich and have a software
problem, which I would like to solve with OptaPlnner.
In our case, we have multiple technicians which are starting their work each
day from different locations
The intellij drools plugin is available in intellij ultimate only I think.
Then you need to do menu File, menu item Other settings, menu item
Configure plugins to enable it.
And then when it's enabled, check settings - File type to see if *.drl
is assigned to the drools drl editor (and not some
On 16-01-14 20:58, jonathan.labin wrote:
Does having PeriodChangeMove and RoomChangeMove undermine the effect of
having the swap filter?
no, because they move only 1 lecture
Since a swap can be constructed by a sequence of changes does the filter
reduce the space or simply remove swapMoves
On 15-01-14 21:36, jonathan.labin wrote:
I have a related question and I'd like to ask it by extending the domain
described here.
Say that instead of the solution being one recipe, I am building a
multiple-course meal of recipes.
The problem will define the course slots including the
Duplicates
http://stackoverflow.com/questions/20937673/or-constraint-with-simple-score-calculator-doesnt-work
On 06-01-14 12:29, rob_87 wrote:
Hey guys,
I'm trying to build a simple score-calculator with optaplanner.
Method A_at_Index2_or_Index3 should force A to be at index 2 or index 3.
Duplicates
http://stackoverflow.com/questions/20633908/unable-to-login-to-kie-drools-wb-distribution-wars-6-0-0-final-jboss-as7-0
On 17-12-13 13:37, anij wrote:
I download the *kie-drools-wb-distribution-6.0.0.Final.zip* and deployed the
On 12-12-13 18:11, Mats Norn wrote:
Hi,
I've got a domain with the following entities:
entities? you mean classes?
- Person (planning entity)
- Desk (planning variable)
13, 2013 at 9:32 AM, Geoffrey De Smet ge0ffrey.s...@gmail.com
wrote:
On 12-12-13 18:11, Mats Norn wrote:
Hi,
The drools-bom is mostly aimed to make it easier for maven users,
so they don't have to declare the version of every drools artifact
separately in their dependencyManagement.
In gradle, don't import the bom, declare a property for the drools
version and just use
Presuming you mean the VRP with time windows variant:
Both VRP example variants follows their research spec (see docs for
link).
The VRP with time windows spec indeed just counts the distance as
time in the score function,
so given that the distance is specified in
On 30-11-13 15:02, Mats Norén wrote:
Hi,
I'm looking for an example that does both scheduling and vrp.
No example of that combination yet.
I have workers with certain skills and I have goods (which require a
particular skill set) to be delivered or picked up within certain time
windows.
that that didn't make the 6.0.0.Final
ref manual.
Regards,
Mats
1 dec 2013 kl. 10:58 skrev Geoffrey De Smet ge0ffrey.s...@gmail.com:
On 30-11-13 15:02, Mats Norén wrote:
Hi,
I'm looking for an example that does both scheduling and vrp.
No example of that combination yet.
I have workers
On 27-11-13 22:12, jonathan.labin wrote:
Apache Commons Collections 4.0 has been released and has some data structures
that I'm interested in using in my application.
To your knowledge can Optaplanner function with version 4.0 swapped in place
of 3.2.1?
I am not of anyone that tried besides
Exception in thread main java.lang.NullPointerException
at
com.example.domain.solver.MyVariableStrengthComparator.compare(MyVariableStrengthComparator.java:30)
That's an NPE in your code :)
(if that doesn't make any sense, any decent Java Programming
course/tutorial should cover how to
On 29-11-13 11:47, ns wrote:
Hi,
I have a strange error. When I get my final roster, I do:
System.out.println(final_roster.getShiftAssignmentList());
Look at this line (final_roster)
I get a list of all the employees (with their names) assigned to a certain
shift on a certain date.
Now
I haven't done many experiments yet with multiple planning entity classes
for which 1 planning entity class points to the other planning entity
class (unless it's chained like in VRP).
The unit tests cover these constructs though, so no worries.
Anyway, if you fancy writing a blog article about
If you copied the employee rostering example, you can click on the
shifts to assign them to another employee.
Before you do that, write down the score.
Then use the trick above the reassign the shifts as you believe it's better.
Now write down the score again.
Is the score better?
On 26-11-13
Can you copy-paste the whole stacktrace?
On 25-11-13 21:51, newbie wrote:
I am currently using final 6.0 and I used
constructionHeuristicTypeBEST_FIT/constructionHeuristicType but after I
have run it propmts java.lang.NullPointerException pointing to my
PlanningVariableStrengComparator. Did I
On 22-11-13 23:38, clients wrote:
Hi,
I have been playing around with the optaplanner library for the past couple
of weeks trying to learn a bit of the basics. I have been making some
progress but I have a simple variation I am trying to accomplish to the
stock
Are you using 6.0.0.Final? There was a bug with nullable variables and
CH's in 6.0.0.CR5 and earlier.
On 24-11-13 03:20, newbie wrote:
I created a custom solver which assign planning variables to planning
entities. I have a simple rule checking if there are no assign variable
that adds
In that case, can you create a new jira and attach any way I can
reproduce the issue locally?
https://issues.jboss.org/browse/PLANNER
On 24-11-13 14:50, newbie wrote:
Yes I am using now the latest version 6.0.0.Final.
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Which path in what file?
On 22-11-13 15:27, jonathan.labin wrote:
It seems to also throw this error any time the path includes the character: \
Even properly escaped in the string as \\
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Looks like a bug in drools, not really relate to optaplanner as it
happens before you set this KieBase on OptaPlanner's SolverFactory, I
presume?
If (and only if) it reproduces with drools 6.0.0.Final (optaplanner
6.0.0.Final uses that version), create a new jira:
then file a jira in optaplanner, it might be optaplanner's fault in
ScoreDirectorFactoryConfig.java.
On 22-11-13 17:14, jonathan.labin wrote:
The exception is not finally thrown until the call to
solver.solve();
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Use scoreDefinitionTypeHARD_SOFT_DOUBLE/scoreDefinitionType
Read this section
http://docs.jboss.org/drools/release/latest/optaplanner-docs/html_single/index.html#d0e4068
and especially this section:
That's a bug in drools.
What version are you using?
If you can reproduce it in 6.0.0.Final, can you file a jira here?
https://issues.jboss.org/browse/DROOLS
On 21-11-13 14:40, ns wrote:
Hi,
I am trying to accomplish the following, a part time employee (eg 50%) needs
to do only half the
That seems wierd:
skill == $shiftType
That's equals between apples and oranges?
On 21-11-13 16:23, ns wrote:
I am trying to create a rule that adds a hard constraint when an employee
gets assigned to a shift for which he does not have the skills.
I have created a table in MySQL that
In 6.0.0.CR5 (and earlier) there was a bug in the CH with nullable
variables that forced them to pick a non-null value.
Try 6.0.0.Final. The release announcement will go out next week.
Also, that version has an example (and therefor an integration test) of
a nullable variable:
the hospital bed
I don't have the time budget to do a full code review for a
community question,
but here are my initial thoughts:
A) Is your average calculation count per second above 5000?
If not, figure out which score rules are slowing you down.
B) Your
On 19-11-13 07:23, newbie wrote:
I am currently using optaplanner 6.0.0.CR5, I have about 11000 planning
entity objects and about 1000 planning variable objects. Would that be the
cause of this problem?
By default, OptaPlanner uses selectors with cacheType=JIT, which can
handle 50K entities
Use optaplanner 6.0.0.CR5 [1], that supports nullable planning variables
in construction heuristics.
[1] http://www.optaplanner.org/community/droolsPlannerRenamed.html
On 13-11-13 07:31, newbie wrote:
According to Drools 5.5 reference doc Nullable planning variables are not
supported for
On 12-11-13 14:22, ns wrote:
Hi,
I would like to distribute shifts equally among employees based on their
employment form (full time or part time: 100%, 75%, 50%, ...). I have a
variable for each employee that holds the employment form. How do I make
sure all shifts get distributed equally,
Makes sense. This is is probably the most straightforward way to model
it cleanly.
You probably want to make 2 EmployeeParts and still link them to same
Employee.
An EmployeePart is basically an employee for the entire time that he/she
works under the same regime.
A shift gets assigned to an
On 07-11-13 16:21, maciekpob wrote:
We are developing an application whose PlanningEntity has multiple planning
variables, in fact 4. There are some moves that we do not want to select.
To ensure that the values proposed (moves) for the 4 different variables do
not break a constraint
No, because the *Config classes aren't annotated with JAXB
annotations.
There's a open discussion if we want to migrate from XStream to
JAXB, so we can offer an XSD of the solver config.
Also note, that these 2 things are completely distinct:
1) read a solver
Try something like this meanwhile:
git clone ... droolsjbpm-knowledge
cd droolsjbpm-knowledge
cd kie-docs
mvn clean install -Dfull
firefox drools-docs/target/.../index.html
On 06-11-13 10:52, xat wrote:
Hello Guys,
Is release date of v6 documentation available?
BR,
Roman
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View this
try
cd .. // to droolsjbpm-knowledge itself
mvn clean install -DskipTests -Dfull
// wait for maven to download the internet
cd kie-docs
hth
On 06-11-13 15:03, xat wrote:
Thanks Geoffrey,
maven fails with an error
[root@drools kie-docs]# mvn clean install -Dfull
/usr/java/jdk1.7.0_21/
On 01-11-13 19:38, Juan Ignacio
Barisich wrote:
Hi everybody
I am using optaplanner in real-time style. My
Either:
1) add a hard constraint to penalize what you don't want
2) look into ValueRangeProvider from entity (see docs), which
effectively makes it a build-in hard constraint.
3) Use Filtering in both the Local Search selectors as the CH
selectors (but
Can you give an example?
This sounds like just another hard constraint.
On 04-11-13 12:27, maciekpob wrote:
I'd like to filter out planning values that are incoherent between each
other.
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Regards
2013/11/4 Geoffrey De Smet ge0ffrey.s...@gmail.com
On 01-11-13 19:38, Juan Ignacio Bari
().setNextStandstill(toRemove.getNextStandstill);
toRemove.getNextStandstill().setPreviousStandstill(toRemove.getPreviousStandstill);
It might need a cast and instanceof check to Customer.
2013/11/4 Geoffrey De Smet ge0ffrey.s...@gmail.com
rule " test rule"
when
$s : Shift($i
: index)
$d :
Demand(shift.getIndex() == $i)
then
System.out.println("Test
rule fired.");
end
So your Solution.getProblemFacts() method adds all Shifts and all
Check your Solution.getProblemFacts() method.
Make sure you used addAll() instead of add() in there.
On 01-11-13 16:46, Xi Gong wrote:
Hi Folks,
I am new to OptaPlanner, so please forgive me if this is a
stupid question.
the CR5 suffix
make you believe otherwise.
Thanks again
2013/10/25 Geoffrey De Smet ge0ffrey.s...@gmail.com
mailto:ge0ffrey.s...@gmail.com
Upgrade to 6.0.0.CR5 (follow the upgrade recipe txt)
and take advantage of the new feature called shadow variables
(see docs).
Also see
Upgrade to 6.0.0.CR5 (follow the upgrade recipe txt)
and take advantage of the new feature called "shadow variables" (see
docs).
Also see the VRP with timewindows example for an implementation that
uses shadow variables :)
On 25-10-13 00:27, Juan Ignacio
On 25-10-13 12:50, sirinath wrote:
Hi,
Is it possible to provide more out of the box optimisers and solvers as part
of OptaPlanner.
Yes, we're trying to add more every major release.
For 6.1 we 'll probably add the CH's cheapest insertion and regret
insertion.
If you want to add one
On 25-10-13 16:08, sirinath wrote:
Where is Drools chance hosted?
https://github.com/droolsjbpm/drools-chance
Perhaps GA/GP can be a part of this?
Yes, here's a Genetic Algoritms prototype for OptaPlanner:
https://github.com/elsam/optaplanner
Results with GA's were poor, but we're
Which version of drools?
Memory consumption improved a lot in 5.2 or 5.3 IIRC.
On 24-10-13 09:14, Elran Dvir wrote:
Thanks
for the quick response.
I
dont use entrypoints or windows in my
Duplicates
http://stackoverflow.com/questions/19489850/detailed-example-for-uninitializedentityfilter
On 21-10-13 09:26, chakez30 wrote:
I have set my planning variable to be nullable. But using this the
constucution heuristic initializes variables to null values and i think this
is a waste of
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