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Dynamical Analysis of the Dow Jones Index Using Dimensionality Reduction and Visualization
António M Lopes1, Jóse A Tenreiro Machado2
1LAETA/INEGI, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
Entropy (Basel, Switzerland)
|June 2, 2021
Summary
Analyzing complex systems (CS) data, like the Dow Jones Industrial Average (DJIA) index, requires advanced methods. Dimensionality reduction and visualization effectively reveal complex patterns in time-series data.
Area of Science:
- Complex Systems Analysis
- Data Science
- Computational Finance
Background:
- Time-series data from complex systems (CS) exhibit chaoticity, fractality, and memory effects, complicating analysis.
- Multidimensional data analysis is crucial for understanding complex system dynamics.
Purpose of the Study:
- To explore the dynamics of multidimensional data generated by a complex system.
- To apply dimensionality reduction and information visualization techniques to analyze the Dow Jones Industrial Average (DJIA) time-series.
Main Methods:
- Normalized and segmented the DJIA time-series into time window vectors.
- Utilized various distance metrics to compare these vectors, treating them as objects representing dynamical behavior.
- Applied dimensionality reduction and information visualization algorithms to the distance-based comparisons.
Main Results:
- Generated meaningful representations of the DJIA dataset based on object similarities and dissimilarities.
- Visualized non-locality and temporal evolution through point trajectories and cluster formation.
- Revealed the complex nature of the DJIA through emergent patterns in the generated data portraits.
Conclusions:
- Dimensionality reduction and visualization are key modeling options for processing complex data.
- These computational techniques offer effective insights into the dynamics of complex systems with current resources.
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