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chuanconggao /
Last active Nov 5, 2018
The original minimal 15 lines implementation of PrefixSpan. Full library at
from collections import defaultdict
def frequent_rec(patt, mdb):
results.append((len(mdb), patt))
occurs = defaultdict(list)
for (i, startpos) in mdb:
seq = db[i]
for j in range(startpos + 1, len(seq)):
l = occurs[seq[j]]
peterjc123 / build.ps1
Last active Nov 12, 2018
Setup script for Windows PyTorch
View build.ps1
# Prerequisites
# 1. MSVC 2017 C++ Build Tools
# 2. CMAKE 3.0 or up
# 3. 64 bits of Windows
# 4. Anaconda / MiniConda 64 bits
# Prerequisites for CUDA
# 1. CUDA 8.0 or up
# 2. NVTX( in CUDA as Visual Studio Integration. if fail to install, you can extract
# the CUDA installer exe and found the NVTX installer under the CUDAVisualStudioIntegration)
# this script installs GCC 5.4.0
# to use it navigate to your home directory and type:
# sh
# download and install gcc 4.9.3
tar xzf gcc-5_4_0-release.tar.gz
cd gcc-5_4_0-release
Tushar-N /
Last active Sep 28, 2019
How to use pad_packed_sequence in pytorch
import torch
import torch.nn as nn
from torch.nn.utils.rnn import pack_padded_sequence, pad_packed_sequence
seqs = ['gigantic_string','tiny_str','medium_str']
# make <pad> idx 0
vocab = ['<pad>'] + sorted(set(''.join(seqs)))
# make model
yuchenlin /
Last active May 23, 2017
Lable the price changes in a csv file
import os
import pandas as pd
STEP = 20
filenames = []
DBExport = '/home/bill/dm_proj/DBExport'
for filename in os.listdir(DBExport):
if filename.endswith(".csv"):
filenames.append(os.path.join(DBExport, filename))
nathanielove /
Created Nov 1, 2016
How to setup Shadowsocks on your Ubuntu server

How to setup Shadowsocks on your Ubuntu server

Your school or company network may block the access to a few specific websites. To solve this problem, I'd highly recommend Shadowsocks, since it is the easiest proxy tool I've ever found, and it's FREE (of course iff you have your own server running).

First, ssh to your server, and make sure you have Python and pip installed. If you have Python but not pip, install it using the following command

$ sudo apt-get install python3-pip
tmdavid /
Last active Sep 20, 2019
Visualize word embeddings, using tsne.
Visualize word embeddings, using tsne.
First computes cosine distance of the 100 closests words, and then shows a clustering graph
of the first 11 closest words (the first one is always the word)
line 31: glove_file = '../TBIR/glove.840B.300d.txt' MODIFY with the appropiate path
To Use it, you can just type: python <list of words space separated>
e.g: python cake word embedding music
lucaswiman /
Created May 31, 2016
networkx / graphviz example
digraph {
0 -> "*" [key=0,
1 -> "*" [key=0,
enter -> "*" [key=0,
"*" -> 0 [key=0,
"*" -> 1 [key=0,
evanwill /
Last active Oct 13, 2019
how to add more utilities to git bash for windows, wget, make

How to add more to Git Bash on Windows

Git for Windows comes bundled with the "Git Bash" terminal which is incredibly handy for unix-like commands on a windows machine. It is missing a few standard linux utilities, but it is easy to add ones that have a windows binary available.

The basic idea is that C:\Program Files\Git\mingw64\ is your / directory according to Git Bash (note: depending on how you installed it, the directory might be different. from the start menu, right click on the Git Bash icon and open file location. It might be something like C:\Users\name\AppData\Local\Programs\Git, the mingw64 in this directory is your root. Find it by using pwd -W). If you go to that directory, you will find the typical linux root folder structure (bin, etc, lib and so on).

If you are missing a utility, such as wget, track down a binary for windows and copy the files to the corresponding directories. Sometimes the windows binary have funny prefixes, so

jtilly /
Last active Oct 14, 2019
Install GCC 4.9.3
# this script installs GCC 4.9.3
# to use it navigate to your home directory and type:
# sh
# download and install gcc 4.9.3
tar xzf gcc-4.9.3.tar.gz
cd gcc-4.9.3
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