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@lukovkin
lukovkin / multi-ts-lstm.py
Last active November 25, 2022 16:23
Time series prediction with multiple sequences input - LSTM - 1
# Time Series Testing
import keras.callbacks
from keras.models import Sequential
from keras.layers.core import Dense, Activation, Dense, Dropout
from keras.layers.recurrent import LSTM
# Call back to capture losses
class LossHistory(keras.callbacks.Callback):
def on_train_begin(self, logs={}):
self.losses = []
@Nemitek
Nemitek / keras_prediction.py
Created October 22, 2015 04:11
Predicting sequences of vectors (regression) in Keras using RNN - LSTM (original by danielhnyk.cz) - fixed for Keras 0.2.0
import pandas as pd
from random import random
flow = (list(range(1,10,1)) + list(range(10,1,-1)))*1000
pdata = pd.DataFrame({"a":flow, "b":flow})
pdata.b = pdata.b.shift(9)
data = pdata.iloc[10:] * random() # some noise
import numpy as np
@hnykda
hnykda / keras.py
Last active June 15, 2023 04:11
Tada's usage (see discussion)
""" From: http://danielhnyk.cz/predicting-sequences-vectors-keras-using-rnn-lstm/ """
from keras.models import Sequential
from keras.layers.core import TimeDistributedDense, Activation, Dropout
from keras.layers.recurrent import GRU
import numpy as np
def _load_data(data, steps = 40):
docX, docY = [], []
for i in range(0, data.shape[0]/steps-1):
docX.append(data[i*steps:(i+1)*steps,:])
@andreiz
andreiz / classifier.php
Last active August 27, 2024 09:42
A simple example of logistic regression via gradient descent in PHP.
<?php
error_reporting(E_ALL);
define('NUM_FEATURES', 3);
// My dataset describes cities around the world where I might consider living.
// Each sample (city) consists of 3 features:
// * Feature 1: average low winter temperature in the city
// * Feature 2: city population, in millions