Using Python's built-in defaultdict we can easily define a tree data structure:
def tree(): return defaultdict(tree)
That's it!
Using Python's built-in defaultdict we can easily define a tree data structure:
def tree(): return defaultdict(tree)
That's it!
# Mac OS X Lion introduced a new, iOS-like context menu when you press and hold a key | |
# that enables you to choose a character from a menu of options. If you are on Lion | |
# try it by pressing and holding down 'e' in any app that uses the default NSTextField | |
# for input. | |
# | |
# It's a nice feature and continues the blending of Mac OS X and iOS features. However, | |
# it's a nightmare to deal with in Sublime Text if you're running Vintage (Vim) mode, | |
# as it means you cannot press and hold h/j/k/l to move through your file. You have | |
# to repeatedly press the keys to navigate. |
(use '[clojure.core.match :only [match]]) | |
(defn evaluate [env [sym x y]] | |
(match [sym] | |
['Number] x | |
['Add] (+ (evaluate env x) (evaluate env y)) | |
['Multiply] (* (evaluate env x) (evaluate env y)) | |
['Variable] (env x))) | |
(def environment {"a" 3, "b" 4, "c" 5}) |
"""Information Retrieval metrics | |
Useful Resources: | |
http://www.cs.utexas.edu/~mooney/ir-course/slides/Evaluation.ppt | |
http://www.nii.ac.jp/TechReports/05-014E.pdf | |
http://www.stanford.edu/class/cs276/handouts/EvaluationNew-handout-6-per.pdf | |
http://hal.archives-ouvertes.fr/docs/00/72/67/60/PDF/07-busa-fekete.pdf | |
Learning to Rank for Information Retrieval (Tie-Yan Liu) | |
""" | |
import numpy as np |
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ror, scala, jetty, erlang, thrift, mongrel, comet server, my-sql, memchached, varnish, kestrel(mq), starling, gizzard, cassandra, hadoop, vertica, munin, nagios, awstats
I like to manage dotfiles without having to mess with silly symlinks or having | |
to install/configure specific dotfile managament tools. So here's what I did: | |
$ cd ~ | |
$ git init . | |
$ echo '*' > .gitignore # ignore all files by default | |
$ echo '!.bashrc' >> .gitignore # ...and then tell git what files not to *not* ignore | |
$ # ...add other files you may want to track to *not* ignore | |
$ git add .bashrc # now actually add the files to git | |
$ git add .gitignore # add the .gitignore to git |
In reply to "@Vlad_Roberto: No, not a programmer. I just know there's better ways to doing anything without massive energy consumption & Banks."
The problem of blockchain synchronization is the following:
Imagine you are sitting in a bunker. You have no idea what people are out there and what are their intentions. You only receive some incoming messages from strangers that may contain anything. They can be just random garbage or deliberately crafted messages to confuse you or lie to you. You never know. You cannot trust anyone.e
The problem of "money" or any other "social contract" is that everyone should be able to know what the majority agrees to without trusting some intermediaries (otherwise they can easily obuse their special position). If everyone votes for "X", then you sitting in a bunker must somehow independently figure out that all those other people indeed voted for "X" and not for "Y" or "Z". But remember: you cannot trust anyone's message and messages are the only thing you get from the outsi
Currently considering https://github.com/webdriverio/webdrivercss
Core Goals:
Use these rapid keyboard shortcuts to control the GitHub Atom text editor on macOS.