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@JosephPecoraro
JosephPecoraro / shell-execution.rb
Last active September 10, 2023 10:12
Shell Execution in Ruby
# Ways to execute a shell script in Ruby
# Example Script - Joseph Pecoraro
cmd = "echo 'hi'" # Sample string that can be used
# 1. Kernel#` - commonly called backticks - `cmd`
# This is like many other languages, including bash, PHP, and Perl
# Synchronous (blocking)
# Returns the output of the shell command
# Docs: http://ruby-doc.org/core/classes/Kernel.html#M001111
@iizukak
iizukak / gram_schmidt.py
Created October 14, 2011 18:18
Gram-Schmidt Orthogonization using Numpy
import numpy as np
def gs_cofficient(v1, v2):
return np.dot(v2, v1) / np.dot(v1, v1)
def multiply(cofficient, v):
return map((lambda x : x * cofficient), v)
def proj(v1, v2):
return multiply(gs_cofficient(v1, v2) , v1)
""" Poisson-loss Factorization Machines with Numba
Follows the vanilla FM model from:
Steffen Rendle (2012): Factorization Machines with libFM.
In: ACM Trans. Intell. Syst. Technol., 3(3), May.
http://doi.acm.org/10.1145/2168752.2168771
See also: https://github.com/coreylynch/pyFM
"""