Automated trading using deep learning and machine learning, learning the correlation between price prediction of Bitcoin and cryptocurrencies. Developing a price prediction model for Bitcoin using multiple cryptocurrency data.

1. Introduction

Bitcoin and other cryptocurrencies have garnered significant attention in recent years. These assets offer attractive investment opportunities along with high volatility. However, such investments come with risks, necessitating appropriate trading strategies and predictive models. This post will explore the process of developing a Bitcoin price prediction model using deep learning and machine learning techniques. This model learns the correlation with Bitcoin prices by utilizing various cryptocurrency data.

2. The Necessity of Bitcoin Automated Trading

The Bitcoin market operates 24/7, requiring investors to monitor market movements in real-time. Traditional trading methods are time-consuming and labor-intensive, and emotional factors can come into play. To address these issues, an automated trading system is needed. An automated trading system provides the following advantages:

  • Minimized emotional decision-making
  • Rapid transaction execution
  • 24/7 market monitoring

3. Related Research

Recent studies have achieved substantial results in predicting cryptocurrency prices using machine learning and deep learning techniques. For instance, Long Short-Term Memory (LSTM) networks are effective in learning patterns in sequential data to predict price fluctuations over time. Additionally, the potential to more accurately predict Bitcoin prices by leveraging correlations between various cryptocurrencies is being highlighted.

4. Data Collection

To develop a Bitcoin price prediction model, various cryptocurrency data must be collected. Data can be gathered using APIs like CoinGecko with Python. Below is an example code:

import requests
import pandas as pd

def get_crypto_data(crypto_ids, start_date, end_date):
    url = "https://api.coingecko.com/api/v3/coins/markets"
    params = {
        'vs_currency': 'usd',
        'order': 'market_cap_desc',
        'per_page': '100',
        'page': '1',
        'sparkline': 'false',
    }
    response = requests.get(url, params=params)
    data = response.json()
    df = pd.DataFrame(data)
    return df[['id', 'name', 'current_price', 'market_cap', 'total_volume']]

# Collect data for Bitcoin and other major cryptocurrencies
cryptos = ['bitcoin', 'ethereum', 'ripple']
crypto_data = get_crypto_data(cryptos, '2021-01-01', '2023-01-01')
print(crypto_data)

5. Data Preprocessing

The collected data must be preprocessed to be suitable for machine learning algorithms. This includes handling missing values, normalizing data, and feature selection. For instance, data normalization can be performed using the following code:

from sklearn.preprocessing import MinMaxScaler

def preprocess_data(df):
    scaler = MinMaxScaler()
    scaled_data = scaler.fit_transform(df[['current_price', 'market_cap', 'total_volume']])
    df_scaled = pd.DataFrame(scaled_data, columns=['current_price', 'market_cap', 'total_volume'])
    return df_scaled

preprocessed_data = preprocess_data(crypto_data)
print(preprocessed_data)

6. Model Development

Various machine learning and deep learning models can be utilized to predict Bitcoin prices. Here, we will use the LSTM model. LSTM networks demonstrate powerful performance in processing time series data.

To develop the model, Keras can be used to design an LSTM structure as follows:

from keras.models import Sequential
from keras.layers import LSTM, Dense, Dropout

def build_model(input_shape):
    model = Sequential()
    model.add(LSTM(50, return_sequences=True, input_shape=input_shape))
    model.add(Dropout(0.2))
    model.add(LSTM(50, return_sequences=False))
    model.add(Dropout(0.2))
    model.add(Dense(1))  # Price prediction output
    model.compile(optimizer='adam', loss='mean_squared_error')
    return model

model = build_model((preprocessed_data.shape[1], 1))

7. Model Training

We will train the assembled LSTM model to predict Bitcoin prices. After splitting the data into training and testing sets, we can train the model:

import numpy as np

# Split the dataset
train_size = int(len(preprocessed_data) * 0.8)
train_data = preprocessed_data[:train_size]
test_data = preprocessed_data[train_size:]

# Prepare input and output data
def create_dataset(data):
    X, y = [], []
    for i in range(len(data) - 1):
        X.append(data[i])
        y.append(data[i + 1])
    return np.array(X), np.array(y)

X_train, y_train = create_dataset(train_data)
X_test, y_test = create_dataset(test_data)

# Train the model
model.fit(X_train, y_train, epochs=50, batch_size=32)

8. Model Evaluation and Prediction

Using the trained model, we will perform predictions on the test data. By comparing the predicted results with the actual prices, we will evaluate the model’s performance:

predictions = model.predict(X_test)
predicted_prices = predictions.flatten()

import matplotlib.pyplot as plt

# Visualize actual data and predicted data
plt.figure(figsize=(14, 5))
plt.plot(y_test, color='blue', label='Actual Price')
plt.plot(predicted_prices, color='red', label='Predicted Price')
plt.title('Bitcoin Price Prediction')
plt.xlabel('Time')
plt.ylabel('Price')
plt.legend()
plt.show()

9. Conclusion

In this post, we explored the process of developing a Bitcoin price prediction model utilizing deep learning and machine learning techniques. By learning the correlation with Bitcoin prices using various cryptocurrency data, more accurate predictions became possible. This model can be used in future Bitcoin automated trading systems and will contribute to establishing efficient investment strategies.

10. References

  • GeeksforGeeks, “Introduction to LSTM” – link
  • CoinGecko API Documentation – link
  • Research Papers on Cryptocurrency Price Prediction – link

Overview of Automated Trading Using Deep Learning and Machine Learning, Bitcoin Automated Trading System: Basic Concepts of Deep Learning and Machine Learning and Their Application to Automated Trading Systems.

1. Introduction

Trading in cryptocurrencies like Bitcoin has seen significant growth in recent years, alongside increased interest in automated trading systems. Automated trading systems execute trades automatically based on pre-set algorithms, allowing for the exclusion of emotional factors in investing. Machine learning (ML) and deep learning (DL) have become essential technologies for improving the performance of these systems and enhancing predictive capabilities.

2. Basic Concepts of Deep Learning and Machine Learning

Machine learning and deep learning are subfields of artificial intelligence (AI) that focus on methods for analyzing data and learning patterns.

2.1. Machine Learning

Machine learning is the technology that creates predictive models by learning from data without explicit programming. Machine learning algorithms recognize patterns through data and predict future outcomes based on this recognition. There are various machine learning algorithms, including:

  • Supervised Learning: A model is trained based on given input data and labels.
  • Unsupervised Learning: A method of finding patterns in data without labels.
  • Reinforcement Learning: Learning to maximize rewards through interaction with the environment.

2.2. Deep Learning

Deep learning is a model formed through multi-layer artificial neural networks, demonstrating exceptional performance in processing large amounts of data and learning complex patterns. Deep learning is applied in various fields such as image recognition and natural language processing. The key components of deep learning are as follows:

  • Neural Network: A model composed of input layers, hidden layers, and output layers.
  • Activation Function: Determines the output by transforming the input values non-linearly within the neural network.
  • Loss Function: Measures the difference between the model’s predicted results and the actual values.
  • Backpropagation: An algorithm that updates weights to minimize the loss function.

3. Application to Automated Trading Systems

Automated trading systems execute trades automatically based on algorithms. Machine learning and deep learning technologies can be used to develop predictive models for this purpose.

3.1. Bitcoin Data Collection

To build an automated trading system, it is necessary to first collect various data, including Bitcoin price data and trading volume. Commonly used data sources include:

  • Exchange APIs: Real-time price information can be obtained through APIs provided by exchanges like Binance and Coinbase.
  • Data Providers: Datasets provided by specialized data providers like CryptoCompare and CoinGecko can be utilized.

3.2. Data Preprocessing

The collected data must be processed into a format suitable for model training. This process includes:

  • Handling Missing Values: Any missing values in the data must be addressed.
  • Normalization: Adjusting the data distribution to enhance the model’s learning effectiveness.
  • Feature Selection: Removing unnecessary features from the model to increase efficiency.

3.3. Model Construction and Training

Machine learning or deep learning models are constructed and trained. Various algorithms can be applied during this process, for example:

  • Regression Analysis: A basic model for predicting Bitcoin prices.
  • LSTM (Long Short-Term Memory): A deep learning model that excels at processing data that changes over time.

3.4. Implementation of Algorithms and Trading Strategies

Based on the trained model, an actual automated trading algorithm is implemented. For example, the following trading strategies can be conceived:

  • Moving Average Crossovers: Generates trading signals by comparing short-term and long-term moving averages.
  • Anomaly Detection: Detects abnormal price fluctuations to capture trading opportunities.

3.5. Building a Real-Time Trading System

After implementing the model and algorithms, a system for executing real-time trades in conjunction with actual exchanges must be established. Typically, the following processes are included:

  • API Connection: Creating orders and checking balances through exchange APIs.
  • Real-Time Data Streaming: Processing trading decisions based on real-time price fluctuations.
  • Monitoring and Reporting: Monitoring the system’s performance and generating reports.

4. Example Code

Here we will look at example code for creating a simple Bitcoin prediction model using Python. This code demonstrates building an LSTM model with the Keras library and retrieving data from the Binance API.

4.1. Installing Required Packages

!pip install numpy pandas matplotlib tensorflow --upgrade
!pip install python-binance

4.2. Data Collection Coding

from binance.client import Client
import pandas as pd

# Enter Binance API key and secret key
api_key = 'YOUR_API_KEY'
api_secret = 'YOUR_API_SECRET'
client = Client(api_key, api_secret)

# Fetch Bitcoin price data
def get_historical_data(symbol, interval, start_time):
    klines = client.get_historical_klines(symbol, interval, start_time)
    data = pd.DataFrame(klines, columns=['Open Time', 'Open', 'High', 'Low', 'Close', 
                                         'Volume', 'Close Time', 'Quote Asset Volume', 
                                         'Number of Trades', 'Taker Buy Base Asset Volume', 
                                         'Taker Buy Quote Asset Volume', 'Ignore'])
    data['Close'] = data['Close'].astype(float)
    return data[['Close']]

# Data collection
data = get_historical_data('BTCUSDT', Client.KLINE_INTERVAL_1HOUR, "1 month ago UTC")
print(data.head())

4.3. Data Preprocessing

import numpy as np

# Data normalization
from sklearn.preprocessing import MinMaxScaler

scaler = MinMaxScaler(feature_range=(0, 1))
scaled_data = scaler.fit_transform(data['Close'].values.reshape(-1, 1))

# Create dataset
def create_dataset(data, time_step=1):
    X, y = [], []
    for i in range(len(data) - time_step - 1):
        X.append(data[i:(i + time_step), 0])
        y.append(data[i + time_step, 0])
    return np.array(X), np.array(y)

time_step = 60
X, y = create_dataset(scaled_data, time_step)
X = X.reshape(X.shape[0], X.shape[1], 1)
print(X.shape, y.shape)

4.4. Model Construction and Training

from tensorflow.keras.models import Sequential
from tensorflow.keras.layers import LSTM, Dense, Dropout

# Build LSTM model
model = Sequential()
model.add(LSTM(50, return_sequences=True, input_shape=(X.shape[1], 1)))
model.add(Dropout(0.2))
model.add(LSTM(50, return_sequences=False))
model.add(Dropout(0.2))
model.add(Dense(25))
model.add(Dense(1))

# Compile model
model.compile(optimizer='adam', loss='mean_squared_error')

# Train model
model.fit(X, y, batch_size=1, epochs=1)

4.5. Prediction and Visualization

# Prediction
train_predict = model.predict(X)
train_predict = scaler.inverse_transform(train_predict)

# Visualization
import matplotlib.pyplot as plt

plt.figure(figsize=(14, 5))
plt.plot(data['Close'].values, label='Actual Bitcoin Price', color='blue')
plt.plot(range(time_step, time_step + len(train_predict)), train_predict, label='Predicted Bitcoin Price', color='red')
plt.title('Bitcoin Price Prediction')
plt.xlabel('Time')
plt.ylabel('Price')
plt.legend()
plt.show()

5. Conclusion

An automated trading system for Bitcoin leveraging deep learning and machine learning can contribute to increased efficiency in trading in the rapidly changing cryptocurrency market. This course started with the basic concepts of machine learning and deep learning, and provided a practical understanding through the construction process of an automated trading system and simple example code. In the future, various strategies and advanced models can be explored to develop even more sophisticated automated trading systems.

I hope this article helps you in building your Bitcoin automated trading system!

Automated trading using deep learning and machine learning, market state classification using unsupervised learning K-means clustering to classify market states (bull market, bear market, etc.).

Establishing an effective automated trading strategy for trading cryptocurrencies like Bitcoin is essential. In this article, we will explore how to classify market conditions using K-means clustering.

1. Introduction

Bitcoin is one of the most volatile assets and the most popular cryptocurrency in financial markets. Therefore, building a system for automatic trading provides many advantages to traders. In particular, advances in deep learning and machine learning have made this possible.

In this course, we will learn how to classify market conditions as “bull market”, “bear market”, or “sideways market” using K-means clustering, which is one of the unsupervised learning techniques. By accurately understanding market conditions, we can design automated trading strategies more effectively.

2. Bitcoin Data Collection

To build a deep learning model, it is necessary to have sufficient and reliable data. Bitcoin price data can be collected from various APIs, and for example, you can use the Binance API. Below is a sample code for data collection using Python:

                
import requests
import pandas as pd

# Collect Bitcoin price data from Binance
def fetch_bitcoin_data(symbol='BTCUSDT', interval='1d', limit='1000'):
    url = f'https://api.binance.com/api/v3/klines?symbol={symbol}&interval={interval}&limit={limit}'
    response = requests.get(url)
    data = response.json()
    df = pd.DataFrame(data, columns=['Open Time', 'Open', 'High', 'Low', 'Close', 'Volume', 
                                      'Close Time', 'Quote Asset Volume', 'Number of Trades', 
                                      'Taker Buy Base Asset Volume', 'Taker Buy Quote Asset Volume', 'Ignore'])
    df['Open Time'] = pd.to_datetime(df['Open Time'], unit='ms')
    df['Close'] = pd.to_numeric(df['Close'])
    return df[['Open Time', 'Close']]

# Load Bitcoin price data
bitcoin_data = fetch_bitcoin_data()
bitcoin_data.set_index('Open Time', inplace=True)
print(bitcoin_data.head())
                
            

The above code collects daily price data for Bitcoin from the Binance API and returns it in the form of a DataFrame.

3. Data Preprocessing

Before performing K-means clustering, we need to preprocess the data. The main data preprocessing steps are as follows:

  • Handling missing values
  • Scaling
  • Feature creation

To achieve this, we will proceed with the following steps:

                
from sklearn.preprocessing import MinMaxScaler

# Check and handle missing values
bitcoin_data.dropna(inplace=True)

# Scale the data
scaler = MinMaxScaler()
bitcoin_data['Close'] = scaler.fit_transform(bitcoin_data[['Close']])

# Feature creation: Price change rate
bitcoin_data['Price Change'] = bitcoin_data['Close'].pct_change()
bitcoin_data.dropna(inplace=True)

print(bitcoin_data.head())
                
            

The above code handles missing values and uses MinMaxScaler to scale the data, allowing the K-means algorithm to cluster data with different distributions effectively. Additionally, it calculates the price change rate to create a new feature.

4. K-means Clustering

K-means clustering is an unsupervised learning algorithm that divides a given set of data points into K clusters. The process of this algorithm is as follows:

  1. Randomly select K cluster centers.
  2. Assign each data point to the nearest cluster center.
  3. Update the cluster center by calculating the average of the assigned data points.
  4. Repeat the above steps until the cluster centers do not change anymore.

An example of K-means clustering is shown below:

                
from sklearn.cluster import KMeans
import matplotlib.pyplot as plt

# Perform K-means clustering
kmeans = KMeans(n_clusters=3, random_state=0)
bitcoin_data['Cluster'] = kmeans.fit_predict(bitcoin_data[['Close', 'Price Change']])

# Visualize the clusters
plt.scatter(bitcoin_data['Close'], bitcoin_data['Price Change'], c=bitcoin_data['Cluster'], cmap='viridis')
plt.xlabel('Scaled Close Price')
plt.ylabel('Price Change')
plt.title('K-means Clustering of Bitcoin Market States')
plt.show()
                
            

The above code performs K-means clustering and visualizes the clusters for each price state. Each cluster is displayed with a different color.

5. Cluster Interpretation and Market Condition Classification

After clustering, we can define market conditions by interpreting the characteristics of each cluster. For example:

  • Cluster 0: Bear Market
  • Cluster 1: Bull Market
  • Cluster 2: Sideways Market

By analyzing the averages and distributions of each cluster, we can clarify these definitions. This allows us to establish trading strategies for each market condition.

6. Establishing Automated Trading Strategies

We develop automated trading strategies that vary according to each market condition. For example:

  • Bear Market: Sell signal
  • Bull Market: Buy signal
  • Sideways Market: Maintain neutrality

These strategies can be easily integrated into the algorithm based on the state of each cluster. For implementing a real automated trading system, it is also necessary to consider how to automatically send buy/sell signals using the exchange API.

7. Conclusion and Future Research Directions

This article discussed the method of classifying Bitcoin market states using K-means clustering, an unsupervised learning technique. Each cluster can reflect actual market trends and contribute to establishing trading strategies.

Future research will focus on:

  • Applying various clustering algorithms beyond K-means
  • Developing hybrid models incorporating deep learning techniques
  • Experimenting with different feature sets

This work will help build a more advanced automated trading system through further in-depth research.

References

The references used in this article are as follows:

  • Books on theoretical background and clustering techniques
  • Documentation of cryptocurrency exchange APIs
  • Related research papers and blogs

Automatic trading and backtesting system construction using deep learning and machine learning. Building a backtesting system that validates the strategies of machine learning models with historical data.

The cryptocurrency market, such as Bitcoin, offers both opportunities and risks to many traders and investors due to its high volatility and trading volume. Consequently, automated trading systems utilizing machine learning and deep learning algorithms are gaining attention. This article will specifically explain how to design a backtesting system to build such an automated trading system and validate it through machine learning models.

1. Overview of Automated Trading Systems

Automated trading (Algorithmic Trading) is a system that performs trades automatically according to pre-set algorithms. This system uses data analysis, technical indicators, and machine learning models to make buy and sell decisions. Cryptocurrency exchanges like Bitcoin provide an environment for programmatic trading through APIs, allowing for the implementation of sample trading strategies.

2. Necessity of Backtesting Systems

Backtesting is the process of validating whether a specific strategy was successful based on historical data. Through this, we can answer questions such as:

  • Was this strategy effective based on past data?
  • Under what market conditions did the strategy perform well?
  • How can the strategy be adjusted to minimize losses and maximize profits?

In other words, backtesting can verify the reliability and validity of the strategy in advance.

3. Data Collection

The first step in building an automated trading system is to collect reliable data. Generally, data can be accessed through exchange APIs. For example, here is a sample code to collect Bitcoin price data using the Binance API:

import requests
import pandas as pd
import time

# Binance API URL
url = 'https://api.binance.com/api/v3/klines'

# Data collection function
def get_historical_data(symbol, interval, start_time, end_time):
    params = {
        'symbol': symbol,
        'interval': interval,
        'startTime': start_time,
        'endTime': end_time
    }
    
    response = requests.get(url, params=params)
    data = response.json()
    
    df = pd.DataFrame(data, columns=['Open Time', 'Open', 'High', 'Low', 'Close', 'Volume', 'Close Time', 
                                      'Quote Asset Volume', 'Number of Trades', 'Taker Buy Base Vol', 
                                      'Taker Buy Quote Vol', 'Ignore'])
    df['Open Time'] = pd.to_datetime(df['Open Time'], unit='ms')
    df['Close Time'] = pd.to_datetime(df['Close Time'], unit='ms')
    df['Open'] = df['Open'].astype(float)
    df['High'] = df['High'].astype(float)
    df['Low'] = df['Low'].astype(float)
    df['Close'] = df['Close'].astype(float)
    df['Volume'] = df['Volume'].astype(float)
    
    return df

# Example data collection
start_time = int(time.time() * 1000) - 30 * 24 * 60 * 60 * 1000  # One month ago
end_time = int(time.time() * 1000)
df = get_historical_data('BTCUSDT', '1h', start_time, end_time)
print(df.head())

4. Data Preprocessing

The collected data must be preprocessed to be suitable for machine learning models. This includes handling missing values, feature engineering, normalization, etc. Here is a simple example of data preprocessing:

def preprocess_data(df):
    df['Returns'] = df['Close'].pct_change()  # Calculate returns
    df['Signal'] = 0
    df['Signal'][1:] = np.where(df['Returns'][1:] > 0, 1, -1)  # Up is 1, down is -1
    df.dropna(inplace=True)  # Remove missing values
    
    features = df[['Open', 'High', 'Low', 'Close', 'Volume']]
    labels = df['Signal']
    return features, labels

features, labels = preprocess_data(df)
print(features.head())
print(labels.head())

5. Training the Machine Learning Model

After preparing the data, the machine learning model needs to be trained. There are various models available, but we will use the Random Forest model here. Below is an example of the training process:

from sklearn.model_selection import train_test_split
from sklearn.ensemble import RandomForestClassifier
from sklearn.metrics import classification_report, accuracy_score

# Split the data into training and testing sets
X_train, X_test, y_train, y_test = train_test_split(features, labels, test_size=0.2, random_state=42)

# Train the Random Forest model
rf_model = RandomForestClassifier(n_estimators=100, random_state=42)
rf_model.fit(X_train, y_train)

# Prediction and evaluation
y_pred = rf_model.predict(X_test)
print(classification_report(y_test, y_pred))
print(f'Accuracy: {accuracy_score(y_test, y_pred):.2f}')

6. Building the Backtesting System

Using the trained model, a system must be built to perform backtesting based on historical data. This will validate the model’s performance. Here is an example of a simple backtesting system:

def backtest_strategy(df, model):
    df['Predicted Signal'] = model.predict(features)
    
    # Create positions
    df['Position'] = df['Predicted Signal'].shift(1)
    df['Market Return'] = df['Returns'] * df['Position']
    
    # Calculate cumulative returns
    df['Cumulative Market Return'] = (1 + df['Market Return']).cumprod()
    
    return df

results = backtest_strategy(df, rf_model)
print(results[['Open Time', 'Close', 'Cumulative Market Return']].head())

7. Performance Evaluation

Visualizing the backtesting results and evaluating performance is an important step. Here is how to visualize cumulative returns using matplotlib:

import matplotlib.pyplot as plt

plt.figure(figsize=(14,7))
plt.plot(results['Open Time'], results['Cumulative Market Return'], label='Cumulative Market Return', color='blue')
plt.title('Backtest Cumulative Return')
plt.xlabel('Date')
plt.ylabel('Cumulative Return')
plt.legend()
plt.show()

8. Strategy Optimization

Based on the backtesting results, the process of optimizing the strategy is necessary. Here, we will explain how to improve model performance through simple parameter tuning. Techniques such as Grid Search can be applied:

from sklearn.model_selection import GridSearchCV

# Set up parameter grid for hyperparameter tuning
param_grid = {
    'n_estimators': [50, 100, 200],
    'max_depth': [None, 10, 20, 30],
}

grid_search = GridSearchCV(RandomForestClassifier(random_state=42), param_grid, cv=5)
grid_search.fit(X_train, y_train)

print("Optimal hyperparameters:", grid_search.best_params_)

9. Conclusion

This article has explored the construction of Bitcoin automated trading and backtesting systems using machine learning and deep learning. We detailed the steps from data collection to preprocessing, model training, backtesting, performance evaluation, and optimization. Through this process, a stable and efficient trading strategy can be implemented. We hope for opportunities to use more advanced models or create more complex strategies in the future.

The success of all systems heavily relies on the quality of the data, the chosen model, and the validity of the strategy, so continuous monitoring and improvement are necessary.

Automated trading using deep learning and machine learning, predicting short-term price movements of Bitcoin using a regression model for price prediction with machine learning.

Bitcoin Price Prediction Using Machine Learning

Bitcoin has established itself as one of the most popular assets in the financial market in recent years.
Many investors aim to leverage the volatility of Bitcoin’s price to generate profits.
In this course, we will learn how to predict the short-term price movements of Bitcoin using deep learning and machine learning techniques.
In particular, we will focus on the process of predicting Bitcoin prices using regression models.

1. Data Preparation

The dataset used for predicting Bitcoin prices mainly includes information such as Bitcoin’s price, trading volume, high and low prices.
Generally, real-time data can be collected through APIs provided by cryptocurrency exchanges such as CoinMarketCap or Binance.
In this course, historical price data will be used for examples.

import pandas as pd

# Downloading and reading data from Binance API as a CSV file.
df = pd.read_csv('bitcoin_price.csv')
df['Date'] = pd.to_datetime(df['Date'])
df.set_index('Date', inplace=True)

# Creating a DataFrame with only the necessary columns.
data = df[['Open', 'High', 'Low', 'Close', 'Volume']]
data.head()

2. Data Preprocessing

Data preprocessing is crucial for improving the performance of machine learning models.
Various preprocessing steps are needed, such as handling missing values, scaling, and merging.
Moreover, considering the time series nature of prices, past price information can influence future prices.

# Handling missing values
data = data.fillna(method='ffill')

# Data normalization
from sklearn.preprocessing import MinMaxScaler
scaler = MinMaxScaler(feature_range=(0, 1))
scaled_data = scaler.fit_transform(data)

# Creating sequential data
def create_dataset(dataset, time_step=1):
    X, y = [], []
    for i in range(len(dataset) - time_step - 1):
        X.append(dataset[i:(i + time_step), 0:dataset.shape[1]])
        y.append(dataset[i + time_step, 3])  # Close price
    return np.array(X), np.array(y)

# Setting time step
time_step = 10
X, y = create_dataset(scaled_data, time_step)

# Splitting into training and testing datasets.
train_size = int(len(X) * 0.8)
X_train, X_test = X[0:train_size], X[train_size:len(X)]
y_train, y_test = y[0:train_size], y[train_size:len(y)]

3. Model Building

We will use LSTM (Long Short-Term Memory) networks to learn from the time series data.
LSTM is a type of RNN (Recurrent Neural Network) that can effectively learn patterns in time series data.

from keras.models import Sequential
from keras.layers import LSTM, Dense, Dropout

model = Sequential()
model.add(LSTM(units=50, return_sequences=True, input_shape=(X_train.shape[1], X_train.shape[2])))
model.add(Dropout(0.2))

model.add(LSTM(units=50, return_sequences=True))
model.add(Dropout(0.2))

model.add(LSTM(units=50))
model.add(Dropout(0.2))

model.add(Dense(units=1))  # Price prediction
model.compile(optimizer='adam', loss='mean_squared_error')

4. Model Training

Now, let’s train the model.
We will train it over a sufficient number of epochs to ensure that the model learns the data patterns well.

# Model training
model.fit(X_train, y_train, epochs=100, batch_size=32)

5. Model Evaluation

We will evaluate the trained model using the validation dataset.
To assess the model’s predictive performance, we will use RMSE (Root Mean Square Error).

import numpy as np

# Predictions
train_predict = model.predict(X_train)
test_predict = model.predict(X_test)

# Inverse scaling
train_predict = scaler.inverse_transform(np.concatenate((np.zeros((train_predict.shape[0], 4)), train_predict), axis=1))[:, 4]
test_predict = scaler.inverse_transform(np.concatenate((np.zeros((test_predict.shape[0], 4)), test_predict), axis=1))[:, 4]

# Calculating RMSE
train_rmse = np.sqrt(np.mean((train_predict - y_train) ** 2))
test_rmse = np.sqrt(np.mean((test_predict - y_test) ** 2))

print(f'Train RMSE: {train_rmse}')
print(f'Test RMSE: {test_rmse}')

6. Visualization of Prediction Results

Finally, we will visualize the prediction results to evaluate the performance of the model.
By visually comparing the actual prices with the prices predicted by the model, we can gauge the model’s predictive performance.

import matplotlib.pyplot as plt

# Visualization
plt.figure(figsize=(14, 5))
plt.plot(df.index[:len(y_train)], y_train, label='Actual Price (Train)', color='blue')
plt.plot(df.index[len(y_train):len(y_train)+len(y_test)], y_test, label='Actual Price (Test)', color='green')
plt.plot(df.index[:len(y_train)], train_predict, label='Predicted Price (Train)', color='red')
plt.plot(df.index[len(y_train):len(y_train)+len(y_test)], test_predict, label='Predicted Price (Test)', color='orange')
plt.title('Bitcoin Price Prediction')
plt.xlabel('Date')
plt.ylabel('Price')
plt.legend()
plt.show()

Conclusion

In this course, we learned how to build a Bitcoin price prediction model using deep learning and machine learning.
Through the LSTM model, we were able to learn patterns from past price data to predict future prices.
By trying various models in this way, we can achieve better predictive performance.
When building an automated trading system for Bitcoin, price prediction is one of the important factors, and this process will help in making investment decisions.

References