Support vector regression based inverse kinematic modeling for a 7-DOF redundant robot arm

Emre Sariyildiz*, Kemal Ucak, Gulay Oke, Hakan Temeltas, Kouhei Ohnishi

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Citations (Scopus)

Abstract

In this paper, inverse differential kinematic modeling is performed for a 7-DOF (Degrees of Freedom) redundant robot arm. Two intelligent identification methods, namely Artificial Neural Networks (ANN) and Support Vector Regression (SVR) are used for modeling. The main strengths of SVR over ANN are that it doesn't get stuck at local minima and it has powerful generalization abilities with very few training data. An important problem in inverse kinematic solutions are the singularities which are points in the operational space where manipulator Jacobian is not invertible. In this paper, simulations are performed on a PA-10 model, to compare the modeling performances attained by ANN and SVR. It has been observed that SVR outperforms ANN in inverse differential kinematic modeling. Training data is obtained using direct differential kinematic equations of the manipulator and data points close to singularities have been discarded.

Original languageEnglish
Title of host publicationINISTA 2012 - International Symposium on INnovations in Intelligent SysTems and Applications
DOIs
Publication statusPublished - 2012
EventInternational Symposium on INnovations in Intelligent SysTems and Applications, INISTA 2012 - Trabzon, Turkey
Duration: 2 Jul 20124 Jul 2012

Publication series

NameINISTA 2012 - International Symposium on INnovations in Intelligent SysTems and Applications

Conference

ConferenceInternational Symposium on INnovations in Intelligent SysTems and Applications, INISTA 2012
Country/TerritoryTurkey
CityTrabzon
Period2/07/124/07/12

Keywords

  • Artificial Neural Networks
  • Redundancy
  • Robot Arm
  • Singularity
  • Support Vector Machine
  • Trajectory Tracking

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