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Nice visualization of stochastic optimizers: http://imgur.com/a/Hqolp (SGD, momentum, Nesterov, AdaGrad, AdaDelta, RMSProp).
86 retweets 83 favorites
New blog post "Numerical Optimization: Understanding L-BFGS" http://aria42.com/blog/2014/12/understanding-lbfgs/ …
32 retweets 52 favorites
When people ask "What are the odds?" they usually mean it rhetorically. They don't really want to know.
187 retweets 130 favorites
These sets all have the same mean, median and variance. Lesson: Always Visualise. #StrataHadoop @statistiekcbs pic.twitter.com/DR3fS7xZkf
"The best way to improve your presentation is to get better content." -@EdwardTufte
maxfun : int Maximum number of function evaluation. if None, maxfun is set to max(100, 10*len(x0)). Now I know what brings max fun!
Numerical fact of the day: In [12]: np.argmin(np.log(np.exp(np.arange(100)) + 1) - x > 0) Out[12]: 34
Twitter, is there a n-dimensional analog of Delaunay triangulation?
For word Russia the nearest words are: Ukraine 0.12 Bulgaria 0.14 Lithuania 0.16 Turkey 0.17 Finland 0.18 Kazakhstan 0.18 Belarus 0.18
1 retweetMy illustration on http://en.wikipedia.org/wiki/Nelder –Mead_method on banana function. pic.twitter.com/vz2Ud0t2Dz
Learn more on floats! http://www.binaryconvert.com/result_float.html?decimal=051046049052049053057050054 …
1 retweetThe tutorial made my day. http://nlp.stanford.edu/courses/NAACL2013/NAACL2013-Socher-Manning-DeepLearning.pdf …
Rule of thumb for number of bins n when plotting a histogram from N points: set n = pow(N, 1/3) to get a nice graph.
If you'd rather work broadly in math than specialize, you'd probably be happier in the private sector than in academia.
18 retweets 9 favoritesRule of thumb for number of clusters k (k-means)! Set the number to k \approx \sqrt{n/2} with n as the number of objects (data points).
1 retweetalias sort='LANG=C sort'
saves a lot of time if you sort numerically (-g) and your locale is not default
e.g
echo $LANG
ru_RU.UTF-8
Data Science is statistics on a Mac.
600 retweets 256 favorites
Агностики ставят пробел как слева, так и справа от звездочки и амперсанда при объявлении типов в C++.
1 retweetTwitter may be over capacity or experiencing a momentary hiccup.
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