title: Induction of hypotheses concerning hip arthroplasty: a modified methodology for medical research.
abstract: OBJECTIVE
  The objective of this study is to advocate a methodology for medical research that, in contrast to traditional medical methodology, exploits the flexibility of machine learning and retains the kind of statistical tests that are generally accepted in the medical field for the confirmation of hypotheses.
  
  
  METHODS
  First, the medical problem is defined and data for an observed population are collected; then a machine learning tool is used to generate hypotheses regarding the problem; finally, statistical methods are used to determine the validity of the generated hypotheses.
  
  
  RESULTS
  To illustrate this approach, the problem of defining indications for hip arthroplasty after an acute medial femoral neck fracture is investigated as a case study.
  
  
  CONCLUSIONS
  The methodology is similar to the usual style of applying machine learning, but insists on a link to the techniques of statistical tests that are normally used in medicine. It aims at a more flexible and economical use of experimental data than in the usual medical research, which is enabled by techniques of machine learning. At the same time, by reference to traditional statistical tests, it is hoped that this approach will lead to improved acceptance of machine learning in the medical field.
authors.affiliation: Laboratory for Biomedical Engineering, University Medical Center, Ljubljana, Slovenia. Vlado.Stankovski@uni-lj.si
authors.forename: V
authors.initials: V
authors.lastname: Stankovski
authors.forename: I
authors.initials: I
authors.lastname: Bratko
authors.forename: J
authors.initials: J
authors.lastname: Demsar
authors.forename: D
authors.initials: D
authors.lastname: Smrke
mesh_terms: D000368:Aged; D019643:Arthroplasty, Replacement; D001185:Artificial Intelligence; D003625:Data Collection; D003663:Decision Trees; D006620:Hip Fractures / Q000601:surgery*; D006622:Hip Prosthesis; D006801:Humans; D008490:Medical Informatics; D017063:Outcome Assessment, Health Care; D012044:Regression Analysis; D012107:Research Design