Access Statistics for Robert Ślepaczuk

Author contact details at EconPapers.

Working Paper File Downloads Abstract Views
Last month 3 months 12 months Total Last month 3 months 12 months Total
A comparison of LSTM and GRU architectures with novel walk-forward approach to algorithmic investment strategy 0 1 5 44 10 17 124 215
A novel approach to trading strategy parameter optimization using double out-of-sample data and walk-forward techniques 0 0 4 4 1 9 22 22
Alternative Loss Function in Evaluation of Transformer Models 0 0 6 12 2 3 18 24
Analysis of HF data on the WSE in the context of EMH 0 0 0 48 0 0 17 235
Analysis of HF data on the WSE in the context of EMH 0 0 0 42 0 1 11 189
Application of machine learning in quantitative investment strategies on global stock markets 0 0 1 36 1 6 24 92
Applying Exogenous Variables and Regime Switching To Multifactor Models on Equity Indices 0 0 0 18 1 2 16 91
Applying Hurst Exponent in Pair Trading Strategies 0 0 3 131 1 6 80 496
Applying Hybrid ARIMA-SGARCH in Algorithmic Investment Strategies on S&P500 Index 0 0 1 15 1 4 23 78
Artificial Neural Networks Performance in WIG20 Index Options Pricing 0 0 0 45 0 0 10 215
Can We Invest Based on Equity Risk Premia and Risk Factors from Multi-Factor Models? 0 0 0 84 0 1 13 141
Construction and Hedging of Equity Index Options Portfolios 0 0 4 15 2 5 23 37
Construction and Hedging of Equity Index Options Portfolios 0 0 4 16 2 7 37 66
Cross-Sectional Returns With Volatility Regimes From Diverse Portfolio of Emerging and Developed Equity Indices 0 0 1 29 0 1 14 76
Daily and intraday application of various architectures of the LSTM model in algorithmic investment strategies on Bitcoin and the S&P 500 Index 0 1 6 57 1 4 45 132
Deep Reinforcement Learning Framework for Diversified Portfolio Management Across Global Equity Markets 0 0 13 13 4 10 17 17
Do Multi-Factor Models Produce Robust Results? Econometric And Diagnostic Issues In Equity Risk Premia Study 0 0 0 17 2 2 11 149
Does historical volatility term structure contain valuable in-formation for predicting volatility index futures? 0 0 0 69 1 1 21 286
Does the inclusion of exposure to volatility into diversified portfolio improve the investment results? Portfolio construction from the perspective of a Polish investor 0 0 0 4 0 0 7 38
Dynamic Multi-Pair Trading Strategy in Cryptocurrency Markets with Deep Reinforcement Learning 2 4 7 7 4 8 16 16
EXFormer: A Multi-Scale Trend-Aware Transformer with Dynamic Variable Selection for Foreign Exchange Returns Prediction 0 1 19 19 6 11 32 32
Emerging versus developed volatility indices. The comparison of VIW20 and VIX indices 0 0 0 79 0 4 30 628
Enhanced Index Replication Based on Smart Beta and Tail-Risk Asset Allocation 1 1 1 15 1 1 17 33
Enhancing literature review with LLM and NLP methods. Algorithmic trading case 0 0 1 4 1 2 15 32
Enhancing literature review with NLP methods Algorithmic investment strategies case 0 0 1 12 2 3 13 48
Ensembled LSTM with Walk Forward Optimization in Algorithmic Trading 1 1 4 55 3 6 57 155
Explainable Patterns in Cryptocurrency Microstructure 1 4 15 15 3 23 86 86
Explaining and Forecasting Abnormal Returns and Volume by Investor Sentiment Indicators 0 0 7 23 1 3 56 118
Generalized Mean Absolute Directional Loss for Machine Learning Trading Models 0 1 3 10 1 2 16 44
Hedging Properties of Algorithmic Investment Strategies using Long Short-Term Memory and Time Series models for Equity Indices 0 0 0 12 2 3 20 39
Hedging Properties of Algorithmic Investment Strategies using Long Short-Term Memory and Time Series models for Equity Indices 0 0 0 9 0 1 14 31
High-Frequency and Model-Free Volatility Estimators 0 0 1 208 0 2 25 542
Hybrid Investment Strategy Based on Momentum and Macroeconomic Approach 0 0 1 58 0 0 50 165
Hybrid Models for Financial Forecasting: Combining Econometric, Machine Learning, and Deep Learning Models 0 1 20 36 1 11 131 150
Improving Realized LGD Approximation: A Novel Framework with XGBoost for Handling Missing Cash-Flow Data 0 0 1 6 0 1 13 29
Improving Realized LGD approximation: A Novel Framework with XGBoost for handling missing cash-flow data 0 0 0 6 1 3 21 35
Informer in Algorithmic Investment Strategies on High Frequency Bitcoin Data 0 0 4 16 0 1 56 69
Investing in VIX futures based on rolling GARCH models forecasts 1 2 10 283 2 4 69 757
Investment strategies beating the market. What can we squeeze from the market? 0 0 2 148 1 1 15 402
LSTM-ARIMA as a Hybrid Approach in Algorithmic Investment Strategies 1 2 4 21 1 2 55 102
LSTM-ARIMA as a Hybrid Approach in Algorithmic Investment Strategies 1 1 4 13 3 5 43 70
Machine Learning-Based Bitcoin Trading Under Transaction Costs: Evidence From Walk-Forward Forecasting 2 6 9 9 8 25 29 29
Machine learning in algorithmic trading strategy optimization - implementation and efficiency 1 1 4 504 2 4 59 1,775
Mean Absolute Directional Loss as a New Loss Function for Machine Learning Problems in Algorithmic Investment Strategies 0 0 0 23 1 1 31 120
Mean Absolute Directional Loss as a New Loss Function for Machine Learning Problems in Algorithmic Investment Strategies 0 0 1 15 1 2 52 85
Midquotes or Transactional Data? The Comparison of Black Model on HF Data 0 0 0 53 0 0 7 168
Momentum and contrarian effects on the cryptocurrency market 0 0 3 169 6 9 102 570
Optimal Markowitz Portfolio Using Returns Forecasted with Time Series and Machine Learning Models 0 0 3 63 1 5 34 154
Option Pricing Models with HF Data – a Comparative Study. The Properties of Black Model with Different Volatility Measures 0 0 0 100 1 2 11 398
Options delta hedging with no options at all 1 1 2 61 2 6 30 206
Overreaction as an indicator for momentum in algorithmic trading: A Case of AAPL stocks 0 0 25 25 0 4 18 18
Predicting DJIA, NASDAQ and NYSE index prices using ARIMA and VAR models 1 1 15 115 1 2 55 262
Predicting prices of S&P500 index using classical methods and recurrent neural networks 0 0 2 119 0 0 10 173
Predictive modeling of foreign exchange trading signals using machine learning techniques 0 2 9 50 2 15 181 264
Quantile regression analysis to predict GDP distribution using data from the US and UK 0 0 0 30 0 2 21 75
REnsembling ARIMAX Model in Algorithmic Investment Strategies on Commodities Market 1 1 8 37 1 4 48 119
Robust optimisation in algorithmic investment strategies 0 0 4 50 2 14 44 124
Robustness of Support Vector Machines in Algorithmic Trading on Cryptocurrency Market 1 1 3 80 1 2 32 267
Simple heuristics for pricing VIX options 0 0 0 30 0 29 40 207
Statistical arbitrage in multi-pair trading strategy based on graph clustering algorithms in US equities market 0 0 4 15 0 3 80 101
Statistical arbitrage in multi-pair trading strategy based on graph clustering algorithms in US equities market 0 2 8 24 1 10 130 181
Stochastic Volatility Modelling with LSTM Networks: A Hybrid Approach for S&P 500 Index Volatility Forecasting 0 0 20 20 0 5 22 22
Supervised Autoencoder MLP for Financial Time Series Forecasting 0 0 3 7 0 0 25 35
Supervised Autoencoder MLP for Financial Time Series Forecasting 0 0 0 23 0 0 36 110
Supervised Autoencoders with Fractionally Differentiated Features and Triple Barrier Labelling Enhance Predictions on Noisy Data 0 0 5 10 0 4 40 51
Systemic risk indicator based on implied and realized volatility 0 0 0 16 2 4 24 50
The Hybrid Forecast of S&P 500 Volatility ensembled from VIX, GARCH and LSTM models 0 0 2 23 1 2 35 68
The Hybrid Forecast of S&P 500 Volatility ensembled from VIX, GARCH and LSTM models 3 3 19 52 4 10 202 301
The article investigates the usage of Informer architecture for building automated trading strategies for high frequency Bitcoin data. Three strategies using Informer model with different loss functions: Root Mean Squared Error (RMSE), Generalized Mean Absolute Directional Loss (GMADL) and Quantile loss, are proposed and evaluated against the Buy and Hold benchmark and two benchmark strategies based on technical indicators. The evaluation is conducted using data of various frequencies: 5 minute, 15 minute, and 30 minute intervals, over the 6 different periods. Although the Informer-based model with Quantile loss did not outperform the benchmark, two other models achieved better results. The performance of the model using RMSE loss worsens when used with higher frequency data while the model that uses novel GMADL loss function is benefiting from higher frequency data and when trained on 5 minute interval it beat all the other strategies on most of the testing periods. The primary contribution of this study is the application and assessment of the RMSE, GMADL and Quantile loss functions with the Informer model to forecast future returns, subsequently using these forecasts to develop automated trading strategies. The research provides evidence that employing an Informer model trained with the GMADL loss function can result in superior trading outcomes compared to the buy-and-hold approach 0 0 2 25 0 8 90 140
The efficiency of various types of input layers of LSTM model in investment strategies on S&P500 index 0 0 3 31 1 3 24 65
The impact of the results of football matches on the stock prices of soccer clubs 0 0 13 262 0 4 91 821
The performance of time series forecasting based on classical and machine learning methods for S&P 500 index 1 3 17 66 2 7 37 98
The profitability of pairs trading strategies on Hong-Kong stock market: distance, cointegration, and correlation methods 0 1 10 45 5 17 169 335
The systemic risk approach based on implied and realized volatility 0 0 0 22 0 1 13 44
Value-at-risk — the comparison of state-of-the-art models on various assets 0 0 5 107 1 2 20 191
Variance Gamma Model in Hedging Vanilla and Exotic Options 1 1 2 34 1 3 28 127
Volatility Forecasting and Return Prediction under Market Regimes: Evidence from High-Frequency Chinese Equity Data 0 3 11 11 4 9 18 18
Volatility as a new class of assets? The advantages of using volatility index futures in investment strategies 0 0 0 50 1 1 14 151
When the Fed Speaks: Dynamics and Forecasts of the Volatility Surface 4 4 4 4 1 2 2 2
Which Option Pricing Model is the Best? High Frequency Data for Nikkei225 Index Options 0 0 0 222 1 1 8 971
Why you should not invest in mining endeavour? The efficiency of BTC mining under current market conditions 1 1 1 18 1 1 11 116
Total Working Papers 25 51 370 4,374 117 399 3,306 15,194


Journal Article File Downloads Abstract Views
Last month 3 months 12 months Total Last month 3 months 12 months Total
ANALYSIS OF HIGH FREQUENCY DATA ON THE WARSAW STOCK EXCHANGE IN THE CONTEXT OF EFFICIENT MARKET HYPOTHESIS 0 0 0 116 0 2 11 384
Application of machine learning in algorithmic investment strategies on global stock markets 0 1 7 29 1 4 52 122
Applying Hurst Exponent in pair trading strategies on Nasdaq 100 index 0 2 5 44 4 19 165 325
Applying exogenous variables and regime switching to multi-factor models on equity indices 1 1 1 12 2 3 25 72
CAPITAL MARKET ANOMALIES IN THE LIGHT OF MARKET EFFICIENCY HYPOTHESIS 0 0 0 0 0 0 0 0
CROSS-SECTIONAL RETURNS WITH VOLATILITY REGIMES FROM A DIVERSE PORTFOLIO OF EMERGING AND DEVELOPED EQUITY INDICES 0 0 0 0 0 1 1 1
CROSS-SECTIONAL RETURNS WITH VOLATILITY REGIMES FROM A DIVERSE PORTFOLIO OF EMERGING AND DEVELOPED EQUITY INDICES 0 0 0 4 0 0 10 50
Cross-Country Differences in Return and Volatility Metrics of World Equity Indices 0 0 1 2 0 0 25 32
Cross-Sectional Returns with Volatility Regimes from a Diverse Portfolio of Emerging and Developed Equity Indices 0 0 0 1 0 1 8 11
Does historical VIX term structure contain valuable information for predicting VIX futures? 2 2 4 107 2 3 47 463
Does the inclusion of exposure to volatility into diversified portfolio improve the investment results? Portfolio construction from the perspective of a Polish investor 0 0 0 8 0 0 4 41
Efficiency of the Market of Derivative Instruments Listed on the Warsaw Stock Exchange 0 0 2 86 0 0 31 370
Energy and cost efficiency of Bitcoin mining endeavor 0 0 0 0 0 1 16 17
INVESTMENT STRATEGIES THAT BEAT THE MARKET. WHAT CAN WE SQUEEZE FROM THE MARKET? 0 0 0 0 0 1 1 1
Instrumenty pochodne na zmienność - nowa klasa aktywów finansowych 0 0 0 0 1 1 1 1
Investment Strategies that Beat the Market. What Can We Squeeze from the Market? 1 2 2 10 2 5 17 38
Machine Learning Methods in Algorithmic Trading Strategy Optimization – Design and Time Efficiency 0 0 0 19 0 1 47 93
Momentum and contrarian effects on the cryptocurrency market 0 0 3 38 4 7 27 199
Robustness of Support Vector Machines in Algorithmic Trading on Cryptocurrency Market 0 0 0 19 0 0 13 105
Systematic index option-writing strategies with Black-Scholes-Merton and Variance-Gamma Models 0 2 8 8 2 11 34 34
The cointegration of Polish timber sales channels: Patterns and implications 1 1 1 1 2 2 11 11
VIW20 – THE CONCEPT OF A VOLATILITY INDEX FOR THE POLISH EQUITY MARKET 0 0 0 0 0 1 1 1
Volatility Measurement, Modeling and Forecasting—An Overview of the Literature 0 0 2 20 1 2 16 69
Which Option Pricing Model Is the Best? HF Data for Nikkei 225 Index Options 0 0 0 0 1 2 33 36
Which Option Pricing Model Is the Best? HF Data for Nikkei 225 Index Options 0 0 0 10 1 1 17 59
Wycena opcji na VIX – podejscie heurystyczne 0 0 0 8 2 2 7 90
Total Journal Articles 5 11 36 542 25 70 620 2,625


Statistics updated 2026-10-11