Stack Exchange

Geoffrey De Smet

Belgium

http://www.optaplanner.org

I am the OptaPlanner lead. OptaPlanner the leading open source constraint satisfaction solver in Java.

Twitter: @GeoffreyDeSmet

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Top Questions
42 votes

Are there any COVID-19 (coronavirus) related optimization problems with input datasets that we can “crowd solve”?

healthcare asked Mar 5 '20 at 12:43
or.stackexchange.com

34 votes

JUnit parameterized tests: how do I run only 1 specific test from IntelliJ/Eclipse?

java eclipse junit intellij-idea asked May 13 '13 at 8:00
stackoverflow.com

31 votes

Comparator.comparing(…) of a nested field

java lambda java-8 comparator asked Jul 22 '16 at 18:42
stackoverflow.com

28 votes

How do I do strikethrough (line-through) in asciidoc?

asciidoc asciidoctor asked Aug 6 '16 at 12:28
stackoverflow.com

23 votes

What are the main differences between Operations Research in the academic world, in the enterprise world and in the government world?

academic government industry asked Jun 9 '19 at 19:15
or.stackexchange.com

22 votes

Freemarker: an enum in an if statement

java freemarker asked Sep 14 '12 at 9:51
stackoverflow.com

19 votes

AI gets a lot of attention these days. Does constraint optimization get more attention, too? Why (not)?

constraint-programming machine-learning ai asked Jul 17 '19 at 12:45
or.stackexchange.com

18 votes

Using jars that use java.beans classes (Introspector, BeanInfo or PropertyDescriptor)

java android reflection asked Feb 25 '13 at 11:07
stackoverflow.com

16 votes

Do not run a category of slow JUnit tests by default in Maven and every IDE (Eclipse, IntelliJ, …) without an explicit TestSuite

eclipse junit intellij-idea jenkins maven-3 asked Apr 8 '13 at 8:36
stackoverflow.com

16 votes

Calling a getter in Java though reflection: What's the fastest way to repeatedly call it (performance and scalability wise)?

java performance reflection asked Jan 3 '13 at 20:20
stackoverflow.com

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Top Answers
84
What is a good Java library to zip/unzip files?
stackoverflow.com

37
Best way to automagically migrate tests from JUnit 3 to JUnit 4?
stackoverflow.com

36
Explain P = NP problem to 10 year old
cstheory.stackexchange.com

27
Algorithm for creating a school timetable
stackoverflow.com

24
Drools vs JBPM ? differences, pros and cons
stackoverflow.com

18
How to evaluate the performance of open source solver?
or.stackexchange.com

17
How to innovate in OR
or.stackexchange.com

17
What algorithm should I use to create an automatic staff scheduling feature?
softwareengineering.stackexchange.com

16
Deployment issue with Maven Plugin
stackoverflow.com

16
Why isn't Drools working with Java 8?
stackoverflow.com

14
Which GPUs to get for Mathematical Optimization (if any)?
or.stackexchange.com

14
List of Implementations for common OR problems
or.stackexchange.com

13
Tennis match scheduling
stackoverflow.com

12
Decision trees and rule engines (Drools)
stackoverflow.com

10
How to (graphically) present computational results?
or.stackexchange.com

10
Using jars that use java.beans classes (Introspector, BeanInfo or PropertyDescriptor)
stackoverflow.com

10
Drools: How to use an enum in the lhs of a rule?
stackoverflow.com

10
Do not run a category of slow JUnit tests by default in Maven and every IDE (Eclipse, IntelliJ, …) without an explicit TestSuite
stackoverflow.com

9
VRP app as a Minimum Viable Product
or.stackexchange.com

8
Const correctness in Java using Annotations?
stackoverflow.com

8
Neigbourhoods in Large Neighbourhood Search (LNS) algorithms
or.stackexchange.com

8
Optimization Problem Libraries
or.stackexchange.com

8
Are metaheuristics ever practical for continuous optimization?
or.stackexchange.com

8
What is a solution?
or.stackexchange.com

8
Algorithms vs LP or MIP
or.stackexchange.com

7
Drools - using accumulate to find min and max
stackoverflow.com

7
Packing problem revisited
stackoverflow.com

7
Difference of Genetic Algorithm and Constraint Programming?
stackoverflow.com

7
Good resources for solving techniques (Metaheuristics, MILP, CP etc)
or.stackexchange.com

6
drools rules syntax for nested classes
stackoverflow.com

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