What is it:
We have added a range of noteworthy new features to Nevergrad, Facebook AI’s open source Python3 library for derivative-free and evolutionary optimization. These enhancements enable researchers and engineers to work with several objectives (multi-objective optimization) or with constraints. These uses are common in natural language processing, for example, where a translation model may be optimized on multiple metrics or benchmarks simultaneously. Because Nevergrad offers cutting-edge algorithms through an easy-to-use, open Python source, anyone can use it to easily test and compare different approaches to a particular problem or to use well-known benchmarks to evaluate how a method compares with the current state of the art. To further improve Nevergrad, we have partnered with IOH Profiler to create the Open Optimization Competition. It is open to submissions for both new optimization algorithms and improvements to Nevergrad’s core tools. Entries must be submitted before September 30 to be eligible for prizes, and more information is available here.
What it does:
Nevergrad is an easy-to-use optimization toolbox for AI researchers, including those who aren’t Python geeks. Optimizing any function takes only a couple of lines of code:
import nevergrad as ng
def square(x):
return sum((x - .5)**2)
optimizer = ng.optimizers.OnePlusOne(instrumentation=2, budget=100)
recommendation = optimizer.minimize(square)
print(recommendation.value) # optimal args and kwargs
>>> array([0.500, 0.499])链接地址：https://ai.facebook.com/blog/nevergrad-an-evolutionary-optimization-platform-adds-new-key-features