title: Harmony Search as a Powerful Tool for Feature Selection in QSPR Study of the Drugs Lipophilicity.
abstract: Aims & Scope: Lipophilicity represents one of the most studied and most frequently used fundamental physicochemical properties. In the present work, harmony search (HS) algorithm is suggested to feature selection in quantitative structure-property relationship (QSPR) modeling to predict lipophilicity of neutral, acidic, basic and amphotheric drugs that were determined by UHPLC. Harmony search is a music-based metaheuristic optimization algorithm. It was affected by the observation that the aim of music is to search for a perfect state of harmony.
  
  
  METHODS
  Semi-empirical quantum-chemical calculations at AM1 level were used to find the optimum 3D geometry of the studied molecules and variant descriptors (1497 descriptors) were calculated by the Dragon software. The selected descriptors by harmony search algorithm (9 descriptors) were applied for model development using multiple linear regression (MLR). In comparison with other feature selection methods such as genetic algorithm and simulated annealing, harmony search algorithm has better results. The root mean square error (RMSE) with and without leave-one out cross validation (LOOCV) were obtained 0.417 and 0.302, respectively.
  
  
  CONCLUSIONS
  The results were compared with those obtained from the genetic algorithm and simulated annealing methods and it showed that the HS is a helpful tool for feature selection with fine performance.
authors.affiliation: School of Chemistry, Damghan University, Damghan. Iran.
authors.forename: Behnoosh
authors.initials: B
authors.lastname: Bahadori
authors.affiliation: School of Chemistry, Damghan University, Damghan. Iran.
authors.forename: Morteza
authors.initials: M
authors.lastname: Atabati
mesh_terms: D000465:Algorithms; D017076:Computer-Aided Design; D015195:Drug Design; D016014:Linear Models; D008055:Lipids / Q000737:chemistry; D008956:Models, Chemical; D008968:Molecular Conformation; D004364:Pharmaceutical Preparations / Q000737:chemistry*; D021281:Quantitative Structure-Activity Relationship; D012984:Software
chemical_list: D008055:Lipids; D004364:Pharmaceutical Preparations
keywords: Lipophilicity; QSPR; drugs; feature selection; harmony search