scholarly journals A Financial Embedded Vector Model and Its Applications to Time Series Forecasting

2018 ◽  
Vol 13 (5) ◽  
pp. 881-894
Author(s):  
Yanfeng Sun ◽  
Minglei Zhang ◽  
Si Chen ◽  
Xiaohu Shi
Keyword(s):  
Neural Networks ◽  
Time Series ◽  
Language Processing ◽  
Prediction Accuracy ◽  
Financial Time Series ◽  
Vector Model ◽  
Rbf Neural Networks ◽  
Vector Representation ◽  
Financial Time ◽  
Proposed Model

Inspired by the embedding representation in Natural Language Processing (NLP), we develop a financial embedded vector representation model to abstract the temporal characteristics of financial time series. Original financial features are discretized firstly, and then each set of discretized features is considered as a “word” of NLP, while the whole financial time series corresponds to the “sentence” or “paragraph”. Therefore the embedded vector models in NLP could be applied to the financial time series. To test the proposed model, we use RBF neural networks as regression model to predict financial series by comparing the financial embedding vectors as input with the original features. Numerical results show that the prediction accuracy of the test data is improved for about 4-6 orders of magnitude, meaning that the financial embedded vector has a strong generalization ability.

scholarly journals Predicting Financial Prices of Stock Market using Recurrent Convolutional Neural Networks

2020 ◽  
Vol 12 (6) ◽  
pp. 21-32
Author(s):  
Muhammad Zulqarnain ◽  
◽  
Rozaida Ghazali ◽  
Muhammad Ghulam Ghouse ◽  
Yana Mazwin Mohmad Hassim ◽  
...  
Keyword(s):  
Neural Network ◽  
Neural Networks ◽  
Time Series ◽  
Financial Time Series ◽  
Time Series Prediction ◽  
Financial Time ◽  
Data Mining Approach ◽  
Learning Tasks ◽  
Financial Prices ◽  
Stock Indexes

Financial time-series prediction has been long and the most challenging issues in financial market analysis. The deep neural networks is one of the excellent data mining approach has received great attention by researchers in several areas of time-series prediction since last 10 years. “Convolutional neural network (CNN) and recurrent neural network (RNN) models have become the mainstream methods for financial predictions. In this paper, we proposed to combine architectures, which exploit the advantages of CNN and RNN simultaneously, for the prediction of trading signals. Our model is essentially presented to financial time series predicting signals through a CNN layer, and directly fed into a gated recurrent unit (GRU) layer to capture long-term signals dependencies. GRU model perform better in sequential learning tasks and solve the vanishing gradients and exploding issue in standard RNNs. We evaluate our model on three datasets for stock indexes of the Hang Seng Indexes (HSI), the Deutscher Aktienindex (DAX) and the S&P 500 Index range 2008 to 2016, and associate the GRU-CNN based approaches with the existing deep learning models. Experimental results present that the proposed GRU-CNN model obtained the best prediction accuracy 56.2% on HIS dataset, 56.1% on DAX dataset and 56.3% on S&P500 dataset respectively.

MEMORY IN FINANCIAL TIME SERIES: FROM INVESTOR BEHAVIOR TO ARTIFICIAL NEURAL NETWORKS

2012 ◽  
Author(s):  
M. TERESA SORROSAL-FORRADELLAS ◽  
M. GLÒRIA BARBERÀ-MARINÉ ◽  
LISANA B. MARTINEZ ◽  
MARÍA-JOSÉ GARBAJOSA-CABELLO
Keyword(s):  
Neural Networks ◽  
Time Series ◽  
Artificial Neural Networks ◽  
Financial Time Series ◽  
Investor Behavior ◽  
Financial Time ◽  
Artificial Neural
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