Skip to content

Instantly share code, notes, and snippets.

View farizikhwantri's full-sized avatar

Fariz Ikhwantri farizikhwantri

View GitHub Profile
@neubig
neubig / dynet-tagger.py
Last active May 21, 2018 06:01
A small sequence labeler in DyNet
"""
DyNet implementation of a sequence labeler (POS taggger).
This is a translation of this tagger in PyTorch: https://gist.github.com/hal3/8c170c4400576eb8d0a8bd94ab231232
Basic architecture:
- take words
- run though bidirectional GRU
- predict labels one word at a time (left to right), using a recurrent neural network "decoder"
The decoder updates hidden state based on:
- most recent word
@kyunghyuncho
kyunghyuncho / mini_sequence_labeler.py
Created August 22, 2017 00:32 — forked from hal3/mini_sequence_labeler.py
PyTorch implementation of a sequence labeler (POS taggger).
"""
PyTorch implementation of a sequence labeler (POS taggger).
Basic architecture:
- take words
- run though bidirectional GRU
- predict labels one word at a time (left to right), using a recurrent neural network "decoder"
The decoder updates hidden state based on:
- most recent word
@kkweon
kkweon / policy_gradient.py
Created May 18, 2017 07:17
Keras Policy Gradient Example
"""
Simple policy gradient in Keras
"""
import gym
import numpy as np
from keras import layers
from keras.models import Model
from keras import backend as K
@mokemokechicken
mokemokechicken / keras_mnist_vat.py
Last active October 21, 2020 07:37
Virtual Adversarial Training for MNIST with Keras
# coding: utf8
"""
* VAT: https://arxiv.org/abs/1507.00677
# 参考にしたCode
Original: https://github.com/fchollet/keras/blob/master/examples/mnist_cnn.py
VAT: https://github.com/musyoku/vat/blob/master/vat.py
results example
---------------
@mbollmann
mbollmann / hidden_state_lstm.py
Created August 17, 2016 10:02
Keras LSTM that inputs/outputs its internal states, e.g. for hidden state transfer
from keras import backend as K
from keras.layers.recurrent import LSTM
class HiddenStateLSTM(LSTM):
"""LSTM with input/output capabilities for its hidden state.
This layer behaves just like an LSTM, except that it accepts further inputs
to be used as its initial states, and returns additional outputs,
representing the layer's final states.
-- suppose you have a model called model
lrs_model = model:clone()
lrs = lrs_model:getParameters()
lrs:fill(1) -- setting the base learning rate to 1
-- now lets set the learning rate factor of the bias of module 5 to 2
lrs_model:get(5).bias:fill(2)
-- same thing for the weights of module 2, let's set them to 3
lrs_model:get(2).weight:fill(3)
@yuyay
yuyay / kcca.py
Last active October 21, 2021 04:54
kernel canonical correlation analysis in python
#! encoding=UTF-8
"""
kernel canonical correlation analysis
"""
import numpy as np
from scipy.linalg import svd
from sklearn.metrics.pairwise import pairwise_kernels, euclidean_distances
class KCCA(object):
@alexland
alexland / serialize-numpy-array.py
Last active November 28, 2023 07:12
serialize, persist, retrieve, and de-serialize a NumPy array as a binary string (any dimension, any dtype); exemplary use case: a web app calculates some result--eg, from a Machine Learning algorithm, using NumPy and the result is a NumPy array; it is efficient to just return that result to rather than persist the array then retrieve it via query
import time
import numpy as NP
from redis import StrictRedis as redis
# a 2D array to serialize
A = 10 * NP.random.randn(10000).reshape(1000, 10)
# flatten the 2D NumPy array and save it as a binary string
array_dtype = str(A.dtype)
@sangeeths
sangeeths / github-to-bitbucket
Created March 10, 2014 15:24
Forking a Github repo to Bitbucket
Go to Bitbucket and create a new repository (its better to have an empty repo)
git clone [email protected]:abc/myforkedrepo.git
cd myforkedrepo
Now add Github repo as a new remote in Bitbucket called "sync"
git remote add sync [email protected]:def/originalrepo.git
Verify what are the remotes currently being setup for "myforkedrepo". This following command should show "fetch" and "push" for two remotes i.e. "origin" and "sync"
git remote -v
@bwhite
bwhite / rank_metrics.py
Created September 15, 2012 03:23
Ranking Metrics
"""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