A Wrapper Based Feature Selection Method for ADMET Prediction Using Evolutionary Computing 1st Edition by Axel Soto, Rocio Cecchini, Gustavo Vazquez, Ignacio Ponzoni – Ebook PDF Instant Download/Delivery. 9783540787570
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ISBN 13: 9783540787570
Author: Axel Soto, Rocio Cecchini, Gustavo Vazquez, Ignacio Ponzoni
Wrapper methods look for the selection of a subset of features or variables in a data set, in such a way that these features are the most relevant for predicting a target value. In chemoinformatics context, the determination of the most significant set of descriptors is of great importance due to their contribution for improving ADMET prediction models. In this paper, a comprehensive analysis of descriptor selection aimed to physicochemical property prediction is presented. In addition, we propose an evolutionary approach where different fitness functions are compared. The comparison consists in establishing which method selects the subset of descriptors that best predicts a given property, as well as maintaining the cardinality of the subset to a minimum. The performance of the proposal was assessed for predicting hydrophobicity, using an ensemble of neural networks for the prediction task. The results showed that the evolutionary approach using a non linear fitness function constitutes a novel and a promising technique for this bioinformatic application.
A Wrapper Based Feature Selection Method for ADMET Prediction Using Evolutionary Computing 1st Table of contents:
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Introduction
- 1.1 Background and Motivation
- 1.2 Overview of ADMET Prediction
- 1.3 Challenges in ADMET Prediction
- 1.4 The Role of Feature Selection in Predictive Modeling
- 1.5 Evolutionary Computing in Feature Selection
- 1.6 Objective and Contributions of the Study
- 1.7 Structure of the Paper
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Literature Review
- 2.1 Overview of ADMET (Absorption, Distribution, Metabolism, Excretion, and Toxicity) Prediction
- 2.2 Machine Learning Approaches for ADMET Prediction
- 2.3 Feature Selection Techniques in Predictive Modeling
- 2.4 Wrapper-Based Feature Selection Methods
- 2.5 Evolutionary Computing and Its Application in Feature Selection
- 2.6 Existing Approaches for ADMET Prediction and Feature Selection
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Methodology
- 3.1 Overview of Wrapper-Based Feature Selection
- 3.2 Evolutionary Computing Techniques Used for Feature Selection
- 3.2.1 Genetic Algorithms
- 3.2.2 Genetic Programming
- 3.2.3 Differential Evolution
- 3.3 ADMET Prediction Models and Their Implementation
- 3.4 Feature Evaluation Criteria and Fitness Function
- 3.5 Model Training and Cross-Validation
- 3.6 Evaluation Metrics for Feature Selection and ADMET Prediction
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Data Acquisition and Preprocessing
- 4.1 ADMET Datasets Overview
- 4.2 Data Collection and Data Sources
- 4.3 Data Cleaning and Preprocessing Steps
- 4.3.1 Handling Missing Values
- 4.3.2 Data Normalization and Scaling
- 4.4 Feature Extraction and Representation
- 4.5 Dimensionality Reduction Methods
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Wrapper-Based Feature Selection Approach
- 5.1 Design of the Wrapper-Based Feature Selection Framework
- 5.2 Feature Subset Search Strategies Using Evolutionary Algorithms
- 5.3 Fitness Evaluation for Feature Subsets
- 5.4 Selection, Crossover, and Mutation Operators in Evolutionary Computing
- 5.5 Incorporating ADMET Prediction Model in the Feature Selection Process
- 5.6 Computational Complexity Considerations
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Experimental Setup and Results
- 6.1 Experimental Setup and Tools Used
- 6.2 ADMET Prediction Models and Algorithms Used (e.g., Random Forest, SVM, Neural Networks)
- 6.3 Performance Comparison of Wrapper-Based Selection vs. Other Feature Selection Methods
- 6.4 Evaluation on Benchmark Datasets
- 6.5 Statistical Analysis of Results
- 6.5.1 Accuracy, Sensitivity, Specificity, AUC-ROC
- 6.5.2 Feature Selection Efficiency
- 6.6 Impact of Feature Selection on ADMET Prediction Accuracy
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Discussion
- 7.1 Analysis of Results
- 7.2 Strengths and Limitations of the Wrapper-Based Approach
- 7.3 Benefits of Evolutionary Computing in Feature Selection
- 7.4 Comparison with Traditional Feature Selection Techniques
- 7.5 Application of the Proposed Approach in Drug Discovery and Toxicity Prediction
- 7.6 Future Improvements and Directions
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Conclusion
- 8.1 Summary of Findings
- 8.2 Contributions to ADMET Prediction and Feature Selection
- 8.3 Implications for Drug Development and Toxicology Studies
- 8.4 Final Remarks and Future Work
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