74a851b611
MATH-1371: Elkan's enhancement to "K-Means" algorithm.
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Original implementation is a old PR provided by Artem Barger.
Updated and changed to pass the code style checks.
I did not review how this algorithm departs from the other
implementations available in the same package, and whether
some other design could minimize duplicate codes (but it
would have been a pity to drop a potential performance
improvement).
A thorough examination should be considered, when tackling
the refactoring of the "clustering" package.
Closes #35 .
2022-01-24 19:57:29 +01:00
134d731a6b
Unused "import".
2022-01-24 18:12:52 +01:00
f862efe4c6
MATH-1589: Remove spurious "throws" clause.
2022-01-24 05:39:59 +01:00
c6b4ca908c
MATH-1640: Do not try to outguess the caller.
2022-01-22 18:53:17 +01:00
645d85a8c7
Avoid array declarations written in C-style syntax and replace it with java.
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Closes #202 .
2022-01-20 18:44:07 +01:00
426545d1db
Relax tolerance (unit test).
2022-01-19 05:19:47 +01:00
ae6ceeadd1
Replace calls to deprecated classes and methods (unit tests).
2022-01-18 04:37:54 +01:00
d81b5e921e
Replace "CMAESOptimizer.Sigma" with "Sigma".
2022-01-17 02:37:20 +01:00
336811dff5
Relax tolerance (unit tests).
2022-01-13 15:53:20 +01:00
7bb6190584
Remove spurious file.
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Thanks to Karl-Philipp Richter.
Closes #201 .
2022-01-13 15:50:22 +01:00
d35194c995
Update copyright notice (2022).
2022-01-06 01:18:24 +01:00
2f48fbb5f9
Unused "import" statements.
2022-01-01 13:25:44 +01:00
e7002a0215
MATH-1594: Remove "Serializable".
2021-12-31 01:59:20 +01:00
eab5cb3af1
MATH-1594: Remove "Serializable".
2021-12-31 01:44:22 +01:00
94061dc566
MATH-1594: Remove "Serializable".
2021-12-31 00:59:27 +01:00
83fb6ef292
Remove spurious "throws" clause.
2021-12-31 00:53:17 +01:00
8904e6263a
MATH-1594: Remove "Serializable".
2021-12-31 00:44:16 +01:00
d3c03ebc9b
Add unit tests.
2021-12-31 00:34:07 +01:00
9f633f7af4
MATH-1594: Remove "Serializable".
2021-12-31 00:31:49 +01:00
89f0abb4ea
MATH-1594: Remove "Serializable".
2021-12-30 23:29:18 +01:00
4f0a49b674
MATH-1594: Remove "Serializable".
2021-12-30 18:12:41 +01:00
aa0bee3055
MATH-1594: Remove "Serializable".
2021-12-30 18:11:26 +01:00
eac2e8b627
MATH-1594: Remove "Serializable".
2021-12-30 17:27:48 +01:00
620b330f47
Comment out test case that fails too often.
2021-12-01 02:36:17 +01:00
c6094cf9e0
MATH-1635: Unit test demonstrating the reported issue.
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Test is set to "@Ignore" since the behaviour may be a known limitation.
2021-12-01 02:27:51 +01:00
226c1fc638
MATH-1636: Remove "isSupportedConnected" (as per STATISTICS-48).
2021-12-01 02:06:16 +01:00
21e230ae83
MATH-1630: Runtime switch between JDK and CM implementations of the methods defined in "java.lang.Math".
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Default is to use the CM implementations in order to retain previous behaviour.
When using the JDK implementations, some unit tests fail (on Java 8).
Class "AccurateMath" was moved to "o.a.c.math4.core" package.
[Unit tests for that class were not moved because they depend on "legacy" classes.]
2021-10-16 11:14:09 +02:00
aa58ab0fd6
Updated tests to use factory constructors for Statistics distributions
2021-10-13 14:20:47 +01:00
84677cd0db
Updated to use factory constructors for Statistics distributions
2021-10-13 14:01:08 +01:00
3a5cf279bb
MATH-1462: Extend workaround for bins that contain up to 3 values.
2021-09-27 01:02:54 +02:00
d4de59a15a
MATH-1462: Reproduce the infinite quantile bug
2021-09-18 12:20:35 +02:00
b44c2610e0
Javadoc.
2021-09-18 03:05:51 +02:00
b89f677c67
Relax tolerance (unit tests).
2021-09-01 13:34:56 +02:00
6e11126615
Spurious "throws" clauses.
2021-09-01 11:25:20 +02:00
b222580737
Replace algorithm used in "best list" search.
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Although efficient in terms of evaluations, "NelderMeadTransform" fails for
some higher-dimensional test functions.
2021-09-01 03:43:05 +02:00
1811eeaf37
Unused "import".
2021-08-27 20:58:27 +02:00
bf1c2c214c
Remove obsolete helper class for unit testing.
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Retries are handled by the "surefire" plugin.
2021-08-27 19:16:03 +02:00
dd0acaa9ff
Relax expectations (unit test).
2021-08-27 19:15:17 +02:00
6f33d5f0a7
Fix incorrect usage of "ROSENBROCK" test function (unit tests).
2021-08-27 18:35:47 +02:00
cc5ae51f98
Favouring the "expanded" simplex over the "reflected" one.
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This modification decreases the number of function evaluations in several
test cases. Note however that the original description of the algorithm
uses the strict inequality...
2021-08-27 17:24:51 +02:00
f1ad9d1b00
Simplex search in higher-dimensional cases (unit test).
2021-08-27 05:37:49 +02:00
ca826ba76b
Add (back) "POwELL" standard test function for optimizers.
2021-08-26 23:56:42 +02:00
f58da4abf5
Use default SA setup in "SimplexOptimizerTest" (unit test).
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A single additional search finds the optimum of the test functions.
2021-08-26 02:05:15 +02:00
06ec7ad0bc
MATH-1622: Simulated annealing entails at least one additional search.
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Also ensure that the "best list" contains at least two points.
2021-08-26 01:39:46 +02:00
677f5f7a3f
Input files for "SimplexOptimizerTest" (unit tests).
2021-08-25 01:51:34 +02:00
2ccdf8d002
MATH-1622: Simulated annealing variant of "NelderMeadTransform".
2021-08-25 01:50:28 +02:00
80a7eb1832
Change how simulated annealing affects the transformed simplex (cf. MATH-1622).
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Compared with commit 97462b1a1b
2021-08-24 15:46:10 +02:00
c21a810558
Useless local variable.
2021-08-24 04:09:42 +02:00
f8d7476614
Input files for "SimplexOptimizerTest" (unit tests).
2021-08-24 01:28:43 +02:00
97462b1a1b
MATH-1622: Simulated annealing variant of "MultiDirectionalTransform".
2021-08-24 01:18:16 +02:00
Gilles Sadowski
Arturo Bernal
aherbert
Maciej Kwidzinski