Merge pull request #67 from darioizzo/pr/misc

forgotten file

doc/sphinx/changelog.rst

@@ -0,0 +1,36 @@
+.. _changelog:
+
+Changelog
+=========
+
+1.5 
+-------------------
+
+New 
+~~~
+
+* A new UDA is introduced to solve symbolic regression problems. 
+  Its called moes (Multi-Objective Evolutionary Startegy) and completes the 
+  evolutionary approaches in dcgp which can now be selected to be memetic or not
+  and single objective or multi-objective.
+
+Changes
+~~~~~~~
+
+- The underlying computations of the symbolic regression optimizationlroblem (UDP) 
+  is now performed by obake using a vectorized type. Speed improvements are observed
+  of orders nbetween x4 and x100 depending on cases.
+
+- The problem on nans appearing and exceptions being thrown has been solved
+  by guarding against symengine exceptions and by discarding zero columns and rows
+  when inverting hessians for the Newton step of memetic algorithms.
+
+- BREAKING: the API has been made uniform for the four UDAs: es4cgp, moes4cgp, mes4cgp, momes4cgp
+  as well as the mutation mechanism. Named parameters have thus changed and default values too.
+
+- The UDA es4cgp is no longer using a thread bfe to compute the loss. This avoids crashes when pythonic, 
+  non thread-safe kernels are used. A bfe can still be set by the user (deprecated in python) after
+  the UDA has been instantiated.
+
+- Documentation has been improved and all tutorials and examples updated to the new API.
+