Altruistic Whale Optimization Algorithm (AltWOA)

AltWOA is a novel feature selection algorithm where Altruistic property of candidate whales are embedded to the Whale Optimization Algorithm (WOA)

Note:

• Refer to our paper published in Computers in Biology and Medicine, Elsevier: AltWOA: Altruistic Whale Optimization Algorithm for feature selection on microarray datasets

• Access the preprint here.

• For the PDF of the published version please email the first author at rohitkunduju [at] gmail [dot] com or request the full text in ResearchGate.

• The overall flowchart of AltWOA and the Pseudo-algorithm of the algorithm of Altruism are given as follow : where Equation 13 and Equation 14 are

  • 

Dependencies

directory\AltWOA> pip install -r requirements.txt

Arguments

directory\AltWOA> python main.py -h
usage: main.py [-h] --csv_path CSV_PATH [--test_size TEST_SIZE] [--filter_reduction FILTER_REDUCTION] [--num_agents NUM_AGENTS] [--max_iter MAX_ITER]
               [--altruism_indi ALTRUISM_INDI] [--save_conv_graph SAVE_CONV_GRAPH]

optional arguments:
  -h, --help            show this help message and exit
  --csv_path CSV_PATH   Path to where the csv file of features
  --test_size TEST_SIZE
                        Size of test set(Absolute value, i.e., 0.2, 0.3, etc.)
  --filter_reduction FILTER_REDUCTION
                        Number of features to retain using filter method.
  --num_agents NUM_AGENTS
                        Population size
  --max_iter MAX_ITER   Maximum number of iterations to run AWOA
  --altruism_indi ALTRUISM_INDI
                        Number of altruistic individuals
  --save_conv_graph SAVE_CONV_GRAPH
                        Save the convergence plots?

Code Execution

directory\AltWOA> python main.py --csv_path "data/name_of_file.csv"

Description

directory\AltWOA
        |
        +--> utils
        |      |
        |      +--> AltWOA.py           # The python file of the proposed feature selection algorithm
        |      +--> altruism.py         # The python file for performing altruism operation
        |      +--> filter.py           # The python file for performing Pasi-Luukka operation
        |
        +--> main.py                    # The main function. Where initial feature selection is performed 
                                          via the Pasi-Luukka filter. After that final feature selection is
                                          performed via proposed AltWOA algorithm. 

Citation

If you find this repository useful in any way, please consider citing our work:

@article{kundu2022altwoa,
  title={AltWOA: Altruistic Whale Optimization Algorithm for feature selection on microarray datasets},
  author={Kundu, Rohit and Chattopadhyay, Soham and Cuevas, Erik and Sarkar, Ram},
  journal={Computers in Biology and Medicine},
  pages={105349},
  year={2022},
  publisher={Elsevier}
}