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l2r-feature-selection-with-deap's Introduction

Feature Selection for Learning To Rank with Multi Objective Genetic Algorithms

Códigos para feature selection, utilizando algoritmos genéticos em contexto de Aprendizagem de Ranqueamento (Recomendação está em desenvolvimento)

Datasets

  • WEB10K - Microsoft Learning to Rank Datasets
  • LETOR - Learning to Rank for Information Retrieval
  • Yahoo - Yahoo! Learning to Rank Challenge Overview

Built With

  • DEAP - Distributed Evolutionary Algorithms in Python
  • cuML - RAPIDS Machine Learning Library
  • cuDF - GPU DataFrame Library
  • scikit-learn - Machine Learning in Python

Some Metrics:

  • TRisk - para Risco
  • Georisk - para Risco
  • NDCG - para Efitividade
  • MAP - para Efitividade
  • EPC - para Novidade
  • EILD - para Diversidade

Configuration

A biblioteca DEAP não disponibiliza comparação de objetivos multivalorados com TTest. Devido esse problema foi desenvolvido um fork da biblioteca, alterando as funções de dominância, selSPEA2 e selNSGA2. Agora essas aplicam teste estatístico para comparação dos indivíduos.

Para instalar desinstale versões anteriores do DEAP:

pip uninstall deap

E instale com o código proveniente do fork:

pip install git+https://github.com/Haiga/deap#egg=deap

Nota: Esse fork utiliza a biblioteca rpy2 - R in Python, e deve ser instalada previamente.

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