Table 1 The summary of the related work.

From: Enhanced stock market forecasting using dandelion optimization-driven 3D-CNN-GRU classification

Authors

Methodology

Merits

Demerits

Ali et al.21

Hybrid EMD and LSTM networks

Improved prediction accuracy using hybrid ensemble approach

Dependency on initial decomposition methods and complexity

Zaheer et al.22

Hybrid deep learning (CNN, LSTM, RNN)

Outperformed conventional models

Struggles with capturing complex patterns in single-layer RNN

Brogaard and Zareei23

Machine learning techniques, evolving genetic algorithm

Effective in generating successful trading strategies

Maintaining profitability over time due to market efficiency

Sarma et al.24

Analysis of stock market patterns

Comprehensive enumeration of influencing variables

May lacks robustness in real-time predictions

Han et al.25

N-Period Min–Max (NPMM) labeling with XGBoost

Improved trading performance

Sensitive to labeling accuracy and parameter choice

Bhambu et al.26

RNN, GRU, LSTM, Bi-LSTM models

Bi-LSTM outperformed others with careful hyperparameter tuning

Risk of overfitting and requires extensive tuning

Azevedo and Hoegner27

Extensive model comparison with machine learning algorithms

Effective in emphasizing market inefficiencies

High computational cost and complexity

Costola et al.28

BERT model for news sentiment analysis

Statistically significant link between news sentiment and market

Depends on quality and timeliness of news data

Md et al.29

MLS LSTM with Adam optimizer

High prediction accuracy

Computational overhead with very large datasets

Gülmez30

Optimized deep LSTM network (LSTM-ARO)

Superior performance with ARO model

Implementation complexity of hybrid models

Shaban et al.31

SMP-DL with data preprocessing and BiGRU, LSTM

High performance in stock price prediction

Generalizability across different market conditions

Jarrah and Derbali32

Multivariate LSTM-DL model

High prediction rates

Requires extensive computational resources and tuning

Awad et al.33

Integration of historical stock data and social media analysis

Remarkable accuracy and efficiency in predictive capacity

Dependency on social media data could introduce noise