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Integrative Interaction Analysis using Threshold Gradient Directed Regularization.

Yang Li1,2, Rong Li2, Yichen Qin3

  • 1Center for Applied Statistics, Renmin University of China.

Applied Stochastic Models in Business and Industry
|October 19, 2020
PubMed
Summary
This summary is machine-generated.

Integrative analysis improves interaction analysis for complex business problems by jointly analyzing multiple datasets. A modified Threshold Gradient Directed Regularization (TGDR) approach effectively selects important interactions and main effects.

Keywords:
High-dimensional dataIntegrative analysisInteraction analysisTGDR

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Area of Science:

  • Business Analytics
  • Statistical Modeling
  • Data Science

Background:

  • High-dimensional data is common in business, with interactions often more significant than main effects.
  • Analyzing single datasets for interactions is often insufficient due to a large number of parameters.
  • Integrative analysis of multiple datasets outperforms single-dataset and meta-analysis methods.

Purpose of the Study:

  • To conduct integrative analysis specifically for interaction analysis.
  • To develop a robust method for regularized estimation and selection of interactions and main effects.

Main Methods:

  • Applied a modified Threshold Gradient Directed Regularization (TGDR) approach.
  • Ensured the TGDR approach respects the hierarchy of main effects and interactions.
  • Utilized simulations and real-world data for validation.

Main Results:

  • The modified TGDR approach demonstrated satisfactory practical performance.
  • The method is computationally simple, broadly applicable, and intuitively formulated.
  • Successful application to financial early warning systems and news-APP recommendation data.

Conclusions:

  • Integrative interaction analysis using the modified TGDR approach is effective.
  • The method offers a powerful tool for uncovering complex relationships in high-dimensional business data.
  • The approach provides reliable insights beyond single-dataset limitations.